WO2018174208A1 - Système d'alimentation électrique - Google Patents

Système d'alimentation électrique Download PDF

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Publication number
WO2018174208A1
WO2018174208A1 PCT/JP2018/011545 JP2018011545W WO2018174208A1 WO 2018174208 A1 WO2018174208 A1 WO 2018174208A1 JP 2018011545 W JP2018011545 W JP 2018011545W WO 2018174208 A1 WO2018174208 A1 WO 2018174208A1
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WO
WIPO (PCT)
Prior art keywords
power
packet
power packet
router
power supply
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Application number
PCT/JP2018/011545
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English (en)
Japanese (ja)
Inventor
勝美 金森
卓朗 漆畑
谷川　純也
弘一 牛谷
大輔 前▲崎▼
Original Assignee
矢崎総業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2017231247A external-priority patent/JP6856512B2/ja
Application filed by 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Priority to CN201880013529.3A priority Critical patent/CN110366806A/zh
Priority to EP18770833.4A priority patent/EP3605789A4/fr
Publication of WO2018174208A1 publication Critical patent/WO2018174208A1/fr
Priority to US16/546,166 priority patent/US20190366872A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks

Definitions

  • the present invention relates to a power supply system that can be used to supply power on a vehicle or the like.
  • an assembly of electric wires is provided between an in-vehicle battery or an alternator (generator) as a main power source and various types of electrical components arranged at various locations on the vehicle. Each is connected via a wire harness. Therefore, the electric power stored in the in-vehicle battery can be supplied as power supply power to various electrical components. Moreover, even when the vehicle is parked, an electrical component such as a security device requires power supply power. Therefore, unless the power supply path is specifically cut off using a fuse, a relay, or the like, the electric power of the in-vehicle battery flows out even when the vehicle is parked.
  • Patent Document 1 shows that the operation of the electrical component is stopped when the integrated value of current consumption after the ignition-off is detected is compared with a predetermined upper limit value and exceeds the upper limit value.
  • Patent Document 2 discloses a technique for packetizing power and transmitting and distributing power.
  • Patent Document 2 discloses a plurality of power storage units that store power of received power packets, a switch unit that distributes the received power packets to the plurality of power storage units, and a power packet based on power stored by the plurality of power storage units.
  • 1 shows a power router having an output to generate.
  • the present invention has been made in view of the above-described circumstances, and an object of the present invention is to avoid wasteful discharge of electric power such as an in-vehicle battery and to demand for electric power even when the load increases. It is to provide a power supply system capable of maintaining a balance between the power supply capacity and the power supply capacity in an appropriate state.
  • the power supply system is characterized by the following (1) to (3).
  • a power packet generation unit that generates a power packet based on power supplied from one or more power supply sources;
  • a power packet router that receives the power packet via a transmission line and supplies the power of the power packet to a plurality of loads connected downstream;
  • a power request sending unit for sending a power distribution request according to the power required by the power packet router;
  • a power supply control unit that provides the power packet according to the power distribution request from the power packet generation unit to the power packet router;
  • An assigning unit that assigns priorities to the plurality of loads, The power supply control unit restricts power supply to a load having a low priority when the relationship between power demand and supply satisfies a predetermined condition; Power supply system.
  • the power supply system configured as described in (1) above, for example, when the power demand exceeds the supply capacity, the relationship between the power demand and the supply satisfies the predetermined condition, If it becomes difficult to supply power to all the loads that are required to be supplied, the power supply to low priority loads can be limited, so that power supply to high priority loads can be maintained and battery power can be increased. It becomes possible to prevent.
  • the power supply control unit compares a supply power amount that can be supplied by the power supply source with a demand power amount represented by the power distribution request, and when the demand power amount is larger than the supply power amount. Stops supplying the power supplied to the low priority load, The power supply system according to (1) above.
  • the power supply amount is reduced by stopping the power supply to the load with low priority. Since it can suppress becoming larger than demand electric energy, it becomes possible to maintain the electric power supply with respect to a load with high priority, and to prevent a battery run-out.
  • the allocation unit corrects the priority order according to at least one of a traveling state of a vehicle on which the power supply system is mounted, an occupant state, and an environment outside the vehicle.
  • the power supply system according to (1) or (2) above.
  • the priority order of loads to which power should be supplied is appropriately determined according to the situation in which the vehicle is placed, such as the running state of the vehicle, the state of the occupant, and the environment outside the vehicle. Since it can correct
  • the power supply system of the present invention it is possible to avoid wasteful discharge of electric power from a vehicle-mounted battery, etc., and even when the load increases, the balance between power demand and supply capacity is in an appropriate state. Can be kept in.
  • FIG. 1 is a block diagram showing a configuration example 1 of the power supply system in the embodiment of the present invention.
  • FIGS. 2A and 2B are flowcharts showing operation examples of the power packet mixer and the power packet router, respectively.
  • FIG. 3 is a block diagram showing a configuration example-2 of the power supply system in the embodiment of the present invention.
  • FIG. 4 is a schematic diagram illustrating a configuration example of a power packet.
  • FIG. 5 is a block diagram illustrating a configuration example of the power packet mixer.
  • FIG. 6 is a flowchart illustrating an operation example of the power packet mixer.
  • FIG. 7 is a block diagram illustrating a configuration example of the power packet router.
  • FIG. 8 is a flowchart illustrating an operation example of the power packet router.
  • FIG. 1 is a block diagram showing a configuration example 1 of the power supply system in the embodiment of the present invention.
  • FIGS. 2A and 2B are flowcharts showing operation examples of the power packet mixer and the power packet router
  • FIG. 9 is a block diagram illustrating a configuration example of the power distribution management ECU.
  • FIG. 10 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 11 is a block diagram showing a configuration example-3 of the power supply system in the embodiment of the present invention.
  • FIG. 12 is a schematic diagram illustrating a configuration example of a power packet.
  • FIG. 13 is a block diagram illustrating a configuration example of the power packet router.
  • FIG. 14 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 15 is a block diagram illustrating a configuration example-4 of the power supply system according to the embodiment of the present invention.
  • FIG. 16 is a schematic diagram illustrating a configuration example of a power packet.
  • FIG. 10 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 11 is a block diagram showing a configuration example-3 of the power supply system in the embodiment of the present invention.
  • FIG. 12
  • FIG. 17 is a sequence diagram illustrating an example of an operation procedure of each unit of the power supply system.
  • FIG. 18 is a block diagram showing a configuration example-5 of the power supply system in the embodiment of the present invention.
  • FIG. 19A and FIG. 19B are block diagrams showing Configuration Example-6 and Configuration Example-7 of the power supply system in the embodiment of the present invention.
  • FIG. 20 is a block diagram showing a configuration example-8 of the power supply system in the embodiment of the present invention.
  • FIG. 21 is a block diagram showing a configuration example-9 of the power supply system in the embodiment of the present invention.
  • FIG. 22 is a block diagram showing a configuration example-10 of the power supply system in the embodiment of the present invention.
  • FIG. 23 (a) is a block diagram showing a configuration example-11 of the power supply system in the embodiment of the present invention, and FIGS. 23 (b) and 23 (c) are output to the transmission lines of the respective parts in different operations. It is a time chart which shows the example of a change of an electric power packet.
  • FIG. 24 is a block diagram showing a configuration example-12 of the power supply system in the embodiment of the present invention.
  • FIG. 25 is a block diagram showing Configuration Example-13 of the power supply system in the embodiment of the present invention.
  • FIG. 26 is a block diagram showing a configuration example-14 of the power supply system in the embodiment of the present invention.
  • FIG. 27 is a block diagram illustrating a configuration example of a general lamp control circuit.
  • FIG. 28 is a block diagram illustrating a configuration example of a lamp control circuit using a power packet.
  • FIG. 29 is a flowchart showing an operation example of the power packet mixer in the lamp control circuit of FIG.
  • FIG. 30 is a flowchart showing an operation example of the power packet router in the lamp control circuit of FIG.
  • FIG. 31 is a block diagram showing Configuration Example-15 of the power supply system in the embodiment of the present invention.
  • FIG. 32 is a block diagram showing a configuration example-16 of the power supply system in the embodiment of the present invention.
  • FIG. 33 is a flowchart illustrating an operation example of the power packet router.
  • FIG. 34 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 35 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 36 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 37 is a flowchart illustrating a power interchange operation example-1.
  • FIG. 38 is a flowchart illustrating a power interchange operation example-2.
  • FIG. 39 is a flowchart illustrating an operation example of the router at the time of activation.
  • FIG. 40 is a graph showing the relationship between load power and efficiency.
  • FIG. 41 is a block diagram illustrating an example of the configuration and operation of the power supply system according to the embodiment of the present invention.
  • FIG. 42 is a block diagram illustrating an example of the configuration and operation of the power supply system according to the embodiment of the present invention.
  • FIG. 41 is a block diagram illustrating an example of the configuration and operation of the power supply system according to the embodiment of the present invention.
  • FIG. 43 is a block diagram illustrating an example of the configuration and operation of the power supply system according to the embodiment of the present invention.
  • FIG. 44 is a flowchart illustrating an operation example of the power distribution management ECU.
  • FIG. 45 is a flowchart showing in more detail an operation example of the power packet mixer shown in FIG.
  • FIG. 1 A configuration example of the power supply system 10-1 in the embodiment of the present invention is shown in FIG.
  • the power supply system 10-1 shown in FIG. 1 is used in a vehicle to supply power from a vehicle-mounted battery or the like to various electrical components serving as loads via a transmission line such as a wire harness.
  • the power supply system 10-1 can use a known power packet transmission technique according to, for example, Patent Document 2.
  • the power supply system 10-1 shown in FIG. 1 includes a power packet mixer 11 and a power packet router (router A) 12.
  • the power packet output port 11c of the power packet mixer 11 and the power packet input port 12a of the power packet router 12 are connected by a power transmission path 16A configured as a wire harness.
  • the power input ports 11a and 11b of the power packet mixer 11 are connected to the in-vehicle batteries (power source 1) 13A and (power source 2) 13B via the power transmission paths 16B and 16C, respectively.
  • the power output ports 12b, 12c, and 12d of the power packet router 12 are connected to loads 14A, 14B, and 14C via power transmission paths 16D, 16E, and 16F, respectively.
  • These loads 14A to 14C correspond to various electrical components mounted on the vehicle.
  • the plurality of power sources such as the in-vehicle batteries 13A and 13B connected to the input of the power packet mixer 11 may have the same voltage or different voltages.
  • FIG. 25 shows a configuration example when the voltages are different. In the example illustrated in FIG. 25, it is assumed that the voltage of the in-vehicle battery 13A is 12 [V] and the voltage of the in-vehicle battery 13B is 48 [V]. Of course, other voltages may be used. In the example of FIG.
  • the power packet mixer 11 generates a power packet PPL (30) having a voltage of 12 [V] based on the power supply power of 12 [V] supplied from the in-vehicle battery 13A, and the power packet mixer 11 A power packet PPH (30) having a voltage of 48 [V] is generated based on the supplied power of 48 [V]. Therefore, as shown in FIG. 25, power packets PPL and PPH having different voltages may appear alternately on the power transmission path 16A, for example.
  • a plurality of power storage units 15A and 15B are connected to the power packet router 12.
  • the number and types of power supplies connected to the input side of the power packet mixer 11 can be changed as necessary. Further, the number and types of loads connected to the output side of the power packet router 12 can be changed as necessary. Further, another power packet router 12 can be connected in series to the output side of the power packet router 12.
  • the power packet mixer 11 has a function of generating a power packet based on the power supplied from the power input ports 11a and 11b and sending the power packet to the power transmission path 16A.
  • the power packet 30 generated by the power packet mixer 11 is configured, for example, as shown in FIG. Due to the payload 32 of the power packet 30, the power on the upstream side is transmitted to the downstream side in units of power packets. Therefore, the power packet mixer 11 can easily manage the amount of power to be transmitted based on the payload length and the number of packets.
  • the time length of the payload 32 of the power packet 30 is adjusted according to the voltage. It is assumed that control is performed so that the amount of power per power packet 30 is constant. When the length of the payload 32 is not adjusted, it is necessary to identify the difference in voltage in order to grasp the power for each power packet 30.
  • the power packet router 12 takes in a power packet input to the power packet input port 12a, and temporarily stores the power of the power packet in the power storage units 15A and 15B. Then, the power stored in the power storage units 15A and 15B is supplied to the load side.
  • the power packet mixer 11 distinguishes and manages the plurality of in-vehicle batteries 13A and 13B that are power supply sources, and includes information for distinguishing them in each power packet to be transmitted. Therefore, the power packet router 12 can also distinguish the power supply source for each received power packet. For example, the power packet router 12 stores the power supplied from the in-vehicle battery 13A only in the power storage unit 15A and stores the power supplied from the in-vehicle battery 13B only in the power storage unit 15B.
  • the power packet mixer 11 has the function 11d shown in FIG. 1, and the power packet router 12 has the functions 12e, 12f, and 12g.
  • the power packet router 12 monitors the amount of power stored in each power storage unit 15A, 15B as the function 12e. In addition, as a function 12f, the power packet router 12 sends a distribution request to the power packet mixer 11 when the amount of power stored in each of the power storage units 15A and 15B is equal to or less than a threshold value.
  • This power distribution request can be sent from the power packet input port 12a to the power packet output port 11c using, for example, the timing when the power transmission path 16A is free.
  • the power packet mixer 11 confirms a power distribution request from the power packet router 12, generates a power packet corresponding to the requested amount of power, and sends this power packet to the power packet output port 11c.
  • the power packet router 12 receives each power packet sent from the power packet mixer 11 and stores it in the power storage units 15A and 15B.
  • a control unit (not shown) in the power packet router 12 is supplied from the in-vehicle battery 13B and the current storage amount Pa of the storage unit 15A that stores the electric power supplied from the in-vehicle battery 13A as the function 12e.
  • the current storage amount Pb of the power storage unit 15B storing the remaining power is read (S11).
  • step S12 the charged amount Pa and the threshold value Ptha thereof are compared in step S12, and the process proceeds to step S15 only when the condition of “Pa ⁇ Ptha” is satisfied. Further, the charged amount Pb and the threshold value Pthb are compared in step S13, and the process proceeds to step S14 only when the condition of “Pb ⁇ Pthb” is satisfied.
  • the control unit in the power packet router 12 sends a power distribution request “Pa_req” to the power packet mixer 11 when the condition 12Pa satisfies the condition “Pa ⁇ Ptha” (S15).
  • a power distribution request “Pb_req” is sent to the power packet mixer 11 (S14).
  • control unit (not shown) in the power packet mixer 11 determines whether or not the distribution request “Pa_req” or “Pb_req” from the power packet router 12 is received (S16), and any request ( When the request is received, the process proceeds to the next step S17. Then, in S17, it is identified whether the received distribution request is “Pa_req” or “Pb_req”. If the distribution request is “Pa_req”, the process proceeds to S19. If the distribution request is “Pb_req”, the process proceeds to S18.
  • step S19 the control unit in the power packet mixer 11 generates a power packet using the power supplied from the in-vehicle battery 13A, and sends the power packet to the power packet router 12 via the power transmission path 16A. .
  • Information indicating that the in-vehicle battery 13A is a supply source is added to the power packet. Note that the number of power packets sent by the power packet mixer 11 in a single process in response to a distribution request may be one for each received distribution request or a predetermined number, The power packet router 12 side may designate as a part.
  • step S18 the control unit in the power packet mixer 11 generates a power packet using the power supplied from the in-vehicle battery 13B, and sends the power packet to the power packet router 12 via the power transmission path 16A. .
  • Information indicating that the in-vehicle battery 13B is a supply source is added to the power packet.
  • the power packet mixer 11 supplies only a necessary amount of power when necessary according to a request from the power packet router 12, that is, the power packet router 12 on demand. To supply.
  • PA_Flag, PB_Flag, PA, and PB are all 0.
  • PA_Flag and PB_Flag are distribution stop flags, respectively. When power supply from the in-vehicle batteries 13A and 13B is impossible, these distribution stop flags are 1.
  • PA and PB represent the integrated power amounts supplied from the in-vehicle batteries 13A and 13B, respectively.
  • the power packet mixer 11 determines whether or not the distribution request “Pa_req” or “Pb_req” is received from the power packet router 12 (S602). When the request (request) is received, the process proceeds to the next step S604. In step S604, whether the received distribution request is “Pa_req” or “Pb_req” is identified. If the distribution request is “Pa_req”, the process proceeds to step S609. If the distribution request is “Pb_req”, the process proceeds to step S605.
  • step S601 if the power transmission stop flag of either PA_Flag or PB_Flag is 1 in step S601, a warning signal is issued or a warning is displayed to the driver (S613). These warnings are ended when it is determined that the engine is turned on (S614). Also, the determination of request signal reception in step S602 ends when it is determined that the engine is turned on (S603).
  • step S609 the control unit in the power packet mixer 11 generates a power packet using the power supplied from the in-vehicle battery 13A, and sends the power packet to the power packet router 12 via the power transmission path 16A.
  • Information indicating that the in-vehicle battery 13A is a supply source is added to the power packet. Note that the number of power packets sent by the power packet mixer 11 in a single process in response to a distribution request may be one for each received distribution request or a predetermined number, The power packet router 12 side may designate as a part.
  • the control unit in the power packet mixer 11 can add the power amount Pa corresponding to the amount of power packet sent this time to the integrated power amount PA transmitted from the in-vehicle battery 13A (S610) and supply it from the in-vehicle battery 13A.
  • the flag PA_flag for stopping the power supply from the in-vehicle battery 13A is set to 1, and the The power distribution request is prohibited (S612).
  • step S605 the control unit in the power packet mixer 11 generates a power packet using the power supplied from the in-vehicle battery 13B, and the power packet is transmitted to the power packet router 12 via the power transmission path 16A. Send to. Information indicating that the in-vehicle battery 13B is a supply source is added to the power packet.
  • the control unit in the power packet mixer 11 can add the power amount Pb corresponding to the current power packet transmission amount to the integrated power amount PB transmitted from the in-vehicle battery 13B (S606), and supply from the in-vehicle battery 13B.
  • the flag PB_flag for stopping the power supply from the in-vehicle battery 13A is set to 1, and the in-vehicle battery 13B The power distribution request is prohibited (S608).
  • FIG. 3 shows a configuration example of the power supply system 10-2 in the embodiment of the present invention.
  • the power supply system 10-2 shown in FIG. 3 is used in a vehicle to supply power source power such as an in-vehicle battery to various electrical components serving as loads via a transmission line such as a wire harness.
  • the power supply system 10-2 can use a known power packet transmission technique according to Patent Document 2, for example.
  • the power supply system 10-2 shown in FIG. 3 includes a power packet mixer 21, a power packet router 22, and a power distribution management ECU (electronic control unit) 26 as main components.
  • a plurality of n power sources 23-1 to 23-n are connected to a plurality of power input ports 21a of the power packet mixer 21 via power transmission paths 29B, respectively.
  • Each of the power supplies 23-1 to 23-n corresponds to, for example, an in-vehicle main battery, a sub battery, and other auxiliary power supplies. Further, the output voltages of the n power supplies 23-1 to 23-n may be the same or different from each other.
  • the power packet output port 21b of the power packet mixer 21 and the power packet input port 22a of the power packet router 22 are connected to each other via one power transmission path 29A.
  • a plurality of loads 24-1 to 24-n are connected to a plurality of power output ports 22b of the power packet router 22 via a power transmission path 29C.
  • Each of the loads 24-1 to 24-n corresponds to various electrical components on the vehicle.
  • another power packet router 22 can be connected in series to the power output port 22 b of the power packet router 22.
  • the power transmission paths 29A, 29B, and 29C correspond to, for example, the electric wires and bus bars that constitute the wire harness mounted on the vehicle. Further, the power distribution management ECU 26 is connected to the power packet mixer 21 and the power packet router 22 in a state where they can communicate with each other. For this communication, a dedicated communication line may be used, or the power transmission path 29A may be used.
  • the power packet mixer 21 As a basic function, the power packet mixer 21 generates a power packet 30 from the power supplied from the power sources 23-1 to 23-n, and outputs the power packet 30 to the power transmission path 29A.
  • the power packet router 22 receives the power packet 30 sent from the power packet mixer 21 and temporarily accumulates this power internally, and also stores this power in each of the loads 24-1 to 24-n as necessary. Supply.
  • the power distribution management ECU 26 communicates with the power packet mixer 21 and the power packet router 22 to manage the power distribution state of the entire system. Among the information exchanged by the power distribution management ECU 26 through communication, a power distribution request 27A transmitted by the power packet router 22, power reception information 27B, a power transmission instruction 28A transmitted by the power distribution management ECU 26, and power transmission information transmitted by the power packet mixer 21 28B.
  • the power packet 30 illustrated in FIG. 4 includes a header 31 and a payload 32.
  • the header 31 includes a synchronization signal 31a, destination (distribution route) information 31b, and transmission power information (data indicating the amount of transmission) 31c.
  • the payload 32 corresponds to the electric power that is actually transmitted. For example, assuming that the voltage and current are constant, power corresponding to the time length of the payload 32 can be transmitted by one power packet 30.
  • the power packet mixer 21 shown in FIG. 5 includes an input selection unit 35, a packet generation unit 36, an output port selection unit 37, a control unit 38, and a communication interface unit (I / F) 39.
  • the input selection unit 35 selects one of the plurality of power input ports 21a and takes in power from the selected power source.
  • the packet generator 36 generates a power packet 30 from the power taken from any of the power input ports 21a.
  • the output port selection unit 37 selects one of the plurality of power packet output ports 21b and sends the power packet 30 to the selected port.
  • the control unit 38 controls the overall operation of the power packet mixer 21 as described below.
  • FIG. 21 An operation example of the power packet mixer 21 is shown in FIG. That is, the control unit 38 performs the control of FIG.
  • the control unit 38 Upon receiving information on the power transmission instruction 28A from the power distribution management ECU 26 (S21), the control unit 38 selects a power input by the input selection unit 35 based on the power transmission instruction 28A, and generates a power packet 30 by the packet generation unit 36. (S22). The control unit 38 controls the output port selection unit 37 to send the generated power packet 30 to the predetermined power packet output port 21b (S23). In addition, the control unit 38 notifies the power distribution management ECU 26 of the power transmission information 28B via the communication port 21c (S24).
  • FIG. 7 A configuration example of the power packet router 22 is shown in FIG.
  • the power packet router 22 illustrated in FIG. 7 includes a header separation analysis unit 41, a power storage unit 42, a packet generation unit 43, an output port selection unit 44, a control unit 45, and a communication interface unit 46.
  • the header separation analysis unit 41 processes the power packet 30 input to each of the power packet input ports 22a, separates the header 31, and analyzes the contents of the header 31.
  • the power storage unit 42 charges and temporarily stores this power at the timing of the payload 32 of the power packet 30 input to each of the power packet input ports 22a.
  • the packet generation unit 43 generates a new power packet 30 from the power stored in the power storage unit 42 when the generation of the power packet 30 is necessary.
  • the output port selection unit 44 selectively outputs the power stored in the power storage unit 42 or the power packet 30 generated by the packet generation unit 43 to any of the power output ports 22b.
  • the control unit 45 controls the entire power packet router 22 as described below.
  • FIG. 22 An example of the operation of the power packet router 22 is shown in FIG. That is, the control unit 45 performs the control of FIG.
  • the control unit 45 analyzes the header 31 of the power packet 30 using the header separation analysis unit 41 (S32).
  • control unit 45 collates the destination of the destination information 31b included in the header 31 with each of the loads 24-1 to 24-n connected to the own router (S33). As a result of the collation, when the load is connected to the own router, the power of the payload 32 is charged to the power storage unit 42 and the power of the power storage unit 42 is output to a predetermined power output port 22b (S34, S39). ).
  • the control unit 45 controls the packet generation unit 43 from the power of the power storage unit 42. Then, a new power packet 30 addressed to the predetermined router is generated (S36). Then, the power packet 30 is output from a predetermined output port (S37) and given to the input port of the predetermined router.
  • control unit 45 measures the amount of charge charged in the power storage unit 42 by the power packet 30 received by the power packet router 22 (S34), and generates power reception information 27B including the integrated power reception value corresponding to the payload 32. This is notified to the power distribution management ECU 26 (S38, S40).
  • control unit 45 determines whether or not power distribution is necessary based on the driving power of each of the loads 24-1 to 24-n connected to the power output port 22b of the own router and the charge state of the power storage unit 42. Identify and notify the distribution management ECU 26 of the information of the distribution request 27A when necessary. For example, when it is necessary to supply power to each load (there is “power supply request”), the required power amount is compared with the stored power amount of the power storage unit 42 (S42). When the condition “is satisfied, the control unit 45 notifies the distribution management ECU 26 of the information of the distribution request 27A (S43).
  • FIG. 9 A configuration example of the power distribution management ECU 26 is shown in FIG.
  • the power distribution management ECU 26 shown in FIG. 9 includes a control unit 26a and a communication interface unit 26b. Communication ports 26c and 26d of the communication interface unit 26b are connected to the power packet mixer 21 and the power packet router 22, respectively.
  • FIG. 26 An example of the operation of the power distribution management ECU 26 is shown in FIG. That is, the control unit 26a in the power distribution management ECU 26 controls the operation of FIG.
  • the control unit 26a in the power distribution management ECU 26 When the information on the power distribution request 27A is notified from the power packet router 22 (S58), the control unit 26a in the power distribution management ECU 26 generates information on the power transmission instruction 28A based on this (S59), and the generated power transmission instruction 28A. Is notified to the power packet mixer 21 (S60).
  • the control unit 26a in the power distribution management ECU 26 activates a power reception information reception waiting timer (S52). Furthermore, the control unit 26a in the power distribution management ECU 26 does not receive the power reception information 27B including the integrated received power value from the power packet router 22 before the power reception information reception waiting timer times out (S54), or from the power packet router 22 If there is a mismatch in the result of the comparison between the received received power value in the received power reception information 27B and the power transmission information 28B from the power packet mixer 21 (S55, S56), there is an abnormality such as disconnection or short circuit in the distribution path. It is determined that it has occurred (S57). And it is made not to distribute electricity by the same distribution route.
  • the distribution management ECU 26 determines the power actually transmitted by the power packet mixer 21 and the power actually received by the power packet router 22, the occurrence of abnormality can be reliably detected.
  • the power distribution management ECU 26 can recognize all the power transmission timings, even if the transmission path (wire harness) is disconnected or dead short, and the header 31 of the power packet 30 is not normally received on the power receiving side. It is possible to detect abnormalities in the transmission path.
  • the power supply system 10-2 shown in FIG. 3 assumes a case where there is only one power packet router 22. However, by connecting a plurality of power packet routers 22 in series, for example, various routes can be selected. It becomes possible to use it. In that case, when an abnormality is detected in the distribution route, the distribution management ECU 26 may automatically switch the route so that the power packet 30 passes through another route where no abnormality has occurred. For example, after step S57 shown in FIG. 10, the power distribution management ECU 26 may perform control so as to notify the power packet mixer 21 or each power packet router 22 of power transmission instruction information for instructing the change of the distribution path. .
  • FIG. 11 A configuration example of the power supply system 10-3 according to the embodiment of the present invention is shown in FIG.
  • the power supply system 10-3 shown in FIG. 11 is used in a vehicle to supply power from a vehicle-mounted battery or the like to various electrical components serving as loads via a transmission line such as a wire harness.
  • the power supply system 10-3 can use a known power packet transmission technique according to Patent Document 2, for example.
  • the power supply system 10-3 shown in FIG. 11 includes, as main components, a power packet mixer 21B, three power packet routers 22B-1, 22B-2, 22B-3, and a power distribution management ECU (electronic control unit). ) 26B.
  • a power packet mixer 21B three power packet routers 22B-1, 22B-2, 22B-3
  • a power distribution management ECU electronic control unit
  • a plurality of n power sources 23-1 to 23-n are connected to a plurality of power input ports of the power packet mixer 21B through a power transmission path 29B, respectively.
  • Each of the power supplies 23-1 to 23-n corresponds to, for example, an in-vehicle main battery, a sub battery, and other auxiliary power supplies.
  • the output voltages of the n power supplies 23-1 to 23-n may be the same or different from each other.
  • the three power packet output ports of the power packet mixer 21B and the power packet input ports 22a of the three power packet routers 22B-1 to 22B-3 are connected to each other via a power transmission path 29A. .
  • a plurality of loads 24-A are connected to a plurality of power output ports 22b of the power packet router 22B-1 through a power transmission path 29C-1.
  • a plurality of loads 24-B are connected to a plurality of power output ports 22b of the power packet router 22B-2 through a power transmission path 29C-2.
  • a plurality of loads 24-C are connected to a plurality of power output ports 22b of the power packet router 22B-3 via a power transmission path 29C-3.
  • Each of the loads 24-A to 24-C corresponds to various electrical components on the vehicle.
  • one of the power output ports 22b of the power packet router 22B-1 and one of the power packet input ports 22a of the adjacent power packet router 22B-2 are connected to each other via the power transmission path 29D-1. ing. Furthermore, one of the power output ports 22b of the power packet router 22B-3 and one of the power packet input ports 22a of the adjacent power packet router 22B-2 are connected to each other via the power transmission path 29D-2. ing.
  • the power transmission path 29D-1 is used as a path for accommodating the power of the power packet router 22B-1 when the power in the power packet router 22B-2 is insufficient.
  • the power transmission path 29D-2 is used as a path for accommodating power of the power packet router 22B-3 when power in the power packet router 22B-2 is insufficient.
  • it can also be used as a detour route when an abnormality such as disconnection occurs.
  • the power transmission paths 29A, 29B, 29C, and 29D correspond to, for example, the electric wires and bus bars that constitute the wire harness mounted on the vehicle. Further, the power distribution management ECU 26B and the power packet mixer 21B and each power packet router 22B are connected via, for example, a dedicated communication line so that they can communicate with each other. It is also possible to communicate using the power transmission path 29A.
  • the power packet mixer 21B As a basic function, the power packet mixer 21B generates a power packet 30B based on the power supplied from the power sources 23-1 to 23-n, and uses the power packet 30B as power transmission paths 29A-1, 29A-2. , 29A-3.
  • Each power packet router 22B-1, 22B-2, 22B-3 receives the power packet 30B sent from the power packet mixer 21B, temporarily stores this power inside, and stores this power as needed. Supply to each of the loads 24-A, 24-B, and 24-C. As will be described in detail later, the power packet routers 22B-1, 22B-2, and 22B-3 also perform power interchange as necessary in this embodiment.
  • the distribution management ECU 26B communicates with the power packet mixer 21B and each power packet router 22B to manage the distribution state of the entire system.
  • the information exchanged by the power distribution management ECU 26B there are a power distribution request 27A and power reception information 27B transmitted by the power packet router 22B, a power transmission instruction 28A transmitted by the power distribution management ECU 26B, and power transmission information transmitted by the power packet mixer 21B. 28B.
  • the power packet 30B illustrated in FIG. 12 includes a header 31B and a payload 32.
  • the header 31B includes a synchronization signal 31a, destination (distribution route) information 31b, transmission power information (data indicating the amount of transmission) 31c, and power type information 31d.
  • the payload 32 corresponds to the electric power that is actually transmitted. For example, assuming that the voltage and current are constant, the power corresponding to the time length of the payload 32 can be transmitted by one power packet 30B.
  • the power type information 31d is used to distinguish between normal power and power dedicated for accommodation.
  • FIG. 13 A configuration example of the power packet router 22B is shown in FIG. Inside the power packet router 22B shown in FIG. 13 are a header separation analysis unit 41, a normal power storage unit 42A, a flexible power storage unit 42B, a packet generation unit 43, an output port selection unit 44, a control unit 45B, and a communication interface unit 46. Is equipped.
  • the header separation analysis unit 41 processes the power packet 30B input to each of the power packet input ports 22a, separates the header 31B, and analyzes the contents of the header 31B.
  • the normal power storage unit 42A and the flexible power storage unit 42B charge and temporarily store this power at the timing of the payload 32 of the power packet 30B input to each of the power packet input ports 22a.
  • the normal power storage unit 42A is used when normal power feeding is performed, and the flexible power storage unit 42B is dedicatedly used when supplying flexible power.
  • the normal power storage unit 42A and the flexible power storage unit 42B may be configured by the same power storage unit, and the normal power supply power and the flexible power may be stored in the power storage unit.
  • the packet generation unit 43 generates a new power packet 30B based on the power stored in the normal power storage unit 42A or the flexible power storage unit 42B when the power packet 30B needs to be generated.
  • the output port selection unit 44 selectively selects the power stored in either the normal power storage unit 42A or the flexible power storage unit 42B or the power packet 30B generated by the packet generation unit 43 as one of the power output ports 22b. Output.
  • the control unit 45B controls the entire power packet router 22B as will be described next.
  • each power packet router 22B is the same as the operation of the power packet router 22 shown in FIG. However, the following points are different.
  • the power packet router 22B collates the destination information 31b and the power type information 31d included in the header 31B of the power packet 30B received at the power packet input port 22a. As a result of the collation, when the received power packet 30B is addressed to the own router and is normally supplied power, the power of the payload 32 is charged to the normal power storage unit 42A and output to a predetermined output port. If the received power packet 30B is addressed to the own router and has flexible power as a result of the collation, the power of the payload 32 is charged into the flexible power storage unit 42B. Further, when the power packet router 22B receives the power packet 30B addressed to the own router, the power packet router 22B notifies the power distribution management ECU 26B of the power reception information 27B including the type and the amount of received power.
  • the power packet router 22B when the power packet router 22B receives the power interchange instruction information from the power distribution management ECU 26, the power packet router 22B generates a power packet 30B addressed to the predetermined router based on the power stored in the accumulator storage unit 42B, and generates a predetermined power from a predetermined output port. Output to the router input port. At the same time, the power packet router 22B notifies the power distribution management ECU 26B of power transmission information including the remaining charge amount of the flexible storage unit 42B. In addition, the power packet router 22B notifies the power distribution management ECU 26 of a power distribution request 27A as necessary based on the driving power of each load connected to the output port and the charging state of the normal power storage unit 42A and the flexible power storage unit 42B. .
  • the configuration of the power distribution management ECU 26B is the same as that of the power distribution management ECU 26 shown in FIG.
  • the communication port 26c of the communication interface unit 26b of the power distribution management ECU 26B is connected to the power packet mixer 21B, and the communication port 26d is connected to each power packet router 22B.
  • FIG. 14 An example of the operation of the power distribution management ECU 26B is shown in FIG. That is, the control unit 26a in the power distribution management ECU 26B controls the operation of FIG. The operation of FIG. 14 will be described below.
  • the distribution management ECU 26B When the distribution management ECU 26B is notified of the information of the distribution request 27A from any of the plurality of power packet routers 22B (S78), there should be no abnormality in all the distribution paths between the power packet mixer 21B and the power packet router 22B. For example, information on the power transmission instruction 28A is generated (S80), and the information on the power transmission instruction 28A is notified to the power packet mixer 21B (S81).
  • the power distribution management ECU 26B receives the power transmission information 28B from the power packet mixer 21B (S71), the power distribution management ECU 26B starts a power reception information reception waiting timer (S72). Further, when the power reception information 27B from the power packet router 22B is not received before the power reception information reception waiting timer times out, the power distribution management ECU 26B determines that an abnormality such as disconnection or short circuit has occurred in the power distribution path (S76). Then, power distribution through the same power distribution path is not performed (S77).
  • the distribution management ECU 26B receives the information of the distribution request 27A from the power packet router 22B, the abnormality is confirmed in all the distribution paths between the power packet mixer 21B and the power packet router 22B as follows. Process as follows. That is, “power interchange instruction information” is generated (S82), and “power interchange instruction” is sent to another power packet router 22B capable of establishing a distribution route with the specific power packet router 22B that has transmitted the distribution request 27A. Information "is notified (S83).
  • the power distribution management ECU 26B recognizes the amount of charge in the accumulating power storage unit 42B in the transmission source power packet router 22B based on the power reception information 27B transmitted from the power packet router 22B. Then, based on the recognized charge amount, the power distribution management ECU 26B notifies the power packet mixer 21B of power transmission instruction information for the power interchange power to the power packet router 22B as necessary.
  • each of the plurality of power packet routers 22B always stores power in the accumulating power storage unit 42B built in as a buffer, and the stored power amount.
  • the router itself knows. Then, when a power shortage occurs in any of the plurality of power packet routers 22B-1 to 22B-3, or in a situation where a power shortage is expected to occur, the corresponding power packet router 22B makes a distribution request.
  • the 27A information is notified to the power distribution management ECU 26B. Based on the information of the power distribution request 27A, the power distribution management ECU 26B notifies the “power interchange instruction information” to the power packet router 22B that stores sufficient power in the interchange power storage unit 42B.
  • the power of the power packet router 22B-3 is transferred to the power packet router 22B-2 via the power transmission path 29D-2, and the power is Can be flexible. Further, the power of the power packet router 22B-1 can be transferred to the power packet router 22B-2 via the power transmission path 29D-1, so that the power can be accommodated.
  • priorities are assigned in advance to each of a plurality of loads connected to each power packet router 22B.
  • the plurality of power packet routers 22B-1 to 22B-3 more power packet mixers 21B are connected to the power packet input port 22a of a specific power packet router 22B to which a higher priority load is connected. And the output port of the power packet router 22B is connected.
  • the outputs of the power packet routers 22B-1 and 22B-3 are connected to the power packet input port 22a of the power packet router 22B-2, respectively. . Therefore, power can be preferentially supplied from the three power packet routers 22B-1 to 22B-3 to the load 24-B having a high degree of importance connected to the output of the power packet router 22B-2.
  • the target power packet is transmitted via the power transmission path that is not disconnected and the power transmission paths 29D-1 and 29D-2.
  • Power can be supplied to the router.
  • the power packet mixer 21B is connected to the power packet router 22B-1 via the power transmission path 29A-2, the power packet router 22B-2, and the power transmission path 29D-1. Power packets can be transmitted.
  • the demand for lower fuel consumption of automobiles is extremely high due to the rising price of fuel oil and environmental problems caused by carbon dioxide emissions. Therefore, an increase in vehicle weight that deteriorates fuel consumption must be avoided.
  • the power packet transmission system there is a possibility that multiple power sources can be realized with a minimum number of wires by transmitting power from a plurality of power sources by time division (packetization). That is, an increase in vehicle weight can be prevented. Further, for example, it is possible to suppress an increase in the number of wirings in an environment where a plurality of types of voltages coexist.
  • the power supply system 10-4 of the present embodiment employs a power packet transmission technique and can provide a function for easily adding a new load.
  • FIG. 15 A configuration example of the power supply system 10-4 according to the embodiment of the present invention is shown in FIG.
  • the power supply system 10-4 shown in FIG. 15 represents a basic configuration example, and power supplies and devices can be added or changed as necessary.
  • An example of the configuration of the power packet 30C is shown in FIG.
  • a power supply system 10-4 shown in FIG. 15 includes a power packet mixer 51, a plurality of power packet routers 52-1 to 52-3, and a power distribution management ECU 56 as main components.
  • the plurality of power input ports 51a of the power packet mixer 51 include an in-vehicle battery (power source 1) 53-1 having a voltage of 12 [V] and an in-vehicle battery (power source 2) 53-2 having a voltage of 48 [V]. Are connected via the power transmission path 55B.
  • a plurality of power packet routers 52-1 and 52-2 are connected to a plurality of power packet output ports 51b of the power packet mixer 51 via a power transmission path 55A, respectively. Note that the voltages output from the plurality of in-vehicle batteries 53-1 and 53-2 may be the same.
  • a power packet router 52-3 and a plurality of loads 54-1 and 54-2 are connected to a power output port 52b of the power packet router 52-1 via a power transmission path 55C. That is, the power packet router 52-1 and the power packet router 52-3 are connected in series.
  • Each of the loads 54-1 and 54-2 corresponds to various on-vehicle electrical components.
  • a plurality of loads 54-5 and 54-6 are connected to the power output port 52b of the power packet router 52-3 via the power transmission path 55D.
  • a plurality of loads 54-3 and 54-4 are connected to the power output port 52b of the power packet router 52-2 via the power transmission path 55C-2.
  • the load 54-7 is prepared to be newly added to this system. In the example of FIG. 1, it is assumed that the load 54-7 is connected to an available port of the power output port 52b of the power packet router 52-2. ing.
  • Each power transmission path 55A, 55B, 55C, 55D is a power transmission wire or bus bar corresponding to each power capacity, and is configured as a part of a wire harness, for example.
  • the power distribution management ECU 56 is connected to the communication port 51c of the power packet mixer 51 via a predetermined communication line.
  • An input device 57 and switches 58 are connected to the input of the power distribution management ECU 56.
  • the input device 57 and the switches 58 are provided so that an input operation by a user or the like can be accepted.
  • the power distribution management ECU 56 has functions of power transmission control and packet transmission schedule construction in this system.
  • the power packet mixer 51 is configured in the same manner as the power packet mixer 21 shown in FIG. 5, for example, and has a basic function based on the power supplied from the in-vehicle batteries 53-1, 53-2, etc. And the power packet 30C is transmitted to the power packet output port 51b.
  • Each of the power packet routers 52-1 to 52-3 is configured in the same manner as the power packet router 22 shown in FIG. 7, for example, and as a basic function, the power packet 30C input to the power packet input port 52a. Have the ability to receive Furthermore, the function of storing the power of the received power packet 30C internally and supplying it to the load side as needed, or the function of generating a relay power packet 30C and sending it to another downstream power packet router 52 have.
  • each of the power distribution management ECU 56, the power packet mixer 51, and the power packet router 52 in the present embodiment incorporates a storage unit (for example, a non-volatile memory) (not shown) for storing route information of the power packet 30C.
  • the path information held by each of these storage means is shared by data communication between the power packet mixer 51 and each of the power packet routers 52-1 to 52-3. This data communication can be performed using the power transmission path 55A or the like.
  • the route information is updated sequentially.
  • the power packet mixer 51 generates power packets 30C having different destinations or voltage amplitudes in order to transmit the power source power of the plurality of in-vehicle batteries 53 through a transmission path having a smaller number than the number of power sources. It is sent to the power transmission path 55A toward the power packet routers 52-1 to 52-3 by the division multiplexing method.
  • the power packet 30C is composed of a header 31C and a payload 32 as shown in FIG.
  • the header 31C includes a synchronization signal, a destination, route information, transmitted power, timing information, and the like.
  • Each power packet router 52-1 to 52-3 reads the information tag from the header 31C of the received power packet 30C, and distributes the power to each load based on the information. That is, the power in the payload 32 of the received power packet 30C is distributed for each destination load.
  • the power of the power packet 30C sent to each load 54 is generated intermittently. Therefore, an electrolytic capacitor or the like is used as a buffer, that is, a power storage unit, or a secondary battery is connected to each power packet router 52 in order to compensate for power supply during a time when a packet does not reach.
  • a buffer or secondary battery used as a power storage unit may be built in each power packet router 52.
  • Each power packet router 52 in the power supply system 10-4 collates the destination information included in the header 31C of the power packet 30C received at the power packet input port 52a.
  • the packet is the power packet 30C addressed to the load connected to the own router
  • the power of the payload 32 is charged to the power storage unit and this power is output to a predetermined output port.
  • a new power packet 30C for relay addressed to the predetermined router is newly created based on the power stored in its own power storage unit. Is output to a predetermined output port and given to an input port of a predetermined router.
  • Each power packet router 52 notifies the power distribution management ECU 56 of power reception information corresponding to the payload 32 of each received power packet 30C via the power packet mixer 51.
  • Each power packet router 52 makes a distribution request to the distribution management ECU 56 as necessary based on the driving power of each load connected to the power output port 52b and the state of charge of the power storage unit.
  • the power supply system 10-4 shown in FIG. 15 simply adds each power packet router 52 and each load connected to the power transmission paths 55A, 55C, 55D, etc., which are the main power transmission paths. It has a function to make it possible. For this function, data communication is performed between the power packet mixer 51 and each power packet router 52, and the connected load is authenticated. When data communication is performed between the power packet mixer 51 and each power packet router 52, for example, bidirectional communication using the power transmission path 55A or the like as a transmission path for communication, or wireless communication is used.
  • the seventh new load 54-7 is connected to the power output port 52b of the power packet router 52-2 and added to this system for the power supply system 10-4 shown in FIG.
  • the power packet router 52-2 automatically detects that the load 54-7 is new and physically connected, and performs processing necessary for logical connection to the system to the power packet mixer 51, power The packet router 52 and the power distribution management ECU 56 automatically carry out.
  • each load 54 assumed to be connected to the output of each power packet router 52 does not hold information such as a “device descriptor” indicating its type and characteristics. Therefore, it is necessary to identify the type and characteristics of each newly connected load by some method.
  • an operator such as a user performs a necessary input operation to identify the type and characteristics of each connected load.
  • the power packet mixer 51 includes a plurality of power packet output ports 51b, and the power packet 30C can be transmitted to each of the plurality of power packet routers 52 using these.
  • the power packet mixer 51 when the power packet mixer 51 is activated, such as when the operator turns on the system, the power packet mixer 51 checks the connection state of each of the power packet output ports 51b and is newly connected. If the power packet router 52 exists, preparation for redistribution (rescheduling) of power resources is performed for the corresponding power packet router 52.
  • a device connected to each output port is obtained in the same manner as a USB (Universal Serial Bus) standard device.
  • the presence or absence of connection can be automatically detected.
  • the pull-up power supply voltage for example, a low voltage of 3.3 [V] or less is preferably used.
  • Each power packet router 52 has a function described below in order to allow a load to be added later.
  • the power packet router 52 confirms the load connection state of its own power output port 52b at the time of activation, and collects information on the type of newly connected load and driving power.
  • the power packet router 52 that has confirmed the new connection requests the operator to input through an input device such as a touch panel (also serving as a display), for example, in order to specify information on the type and specification of the connected new device.
  • communication is performed by placing a signal on a frequency different from the basic frequency of the clock of the power packet 30C using a frequency division multiplexing method or the like. It is possible. Further, wireless communication may be performed between the power packet mixer 51 and the power packet router 52 without using the power transmission path 55A or the like.
  • the connection to the subsequent stage of the power packet router 52 is limited only to the load 54 or another power packet router 52.
  • the power packet router 52 confirms the connection of its output port when the power is turned on, and informs the power packet mixer 51 of information on the connected load 54.
  • the power packet router 52 When the power packet router 52 detects a new device, it notifies the power packet mixer 51 of this.
  • the power packet mixer 51 requests the operator to input load specification information from the touch panel input device / display, that is, the input device 57, the switches 58, and the like. . Further, the power packet mixer 51 simultaneously assigns an address attached to the power packet router 52 to the device. For example, as shown in FIG. 15, when the new load 54-7 is connected to the third power output port 52b of the second power packet router 52-2, the address is “2-3”. Is granted.
  • the power packet mixer 51 and each power packet router 52 work together. Thus, the system feasibility determination and the power packet transmission schedule are reconstructed.
  • the power packet mixer 51 is premised on performing processing in cooperation with the power distribution management ECU 56.
  • the power packet mixer 51 requests the operator to input information (S100) such as the specifications of the new device using the touch panel or the like (S99). At the same time, the address of the new device is set (S101) and shared with the power packet router 52 (S102). 7). The power packet mixer 51 determines the feasibility of the power packet transmission system based on the device type and specification input by the operator, constructs a packet transmission schedule (S103), and shares it with the router (S104). 8). The new device can be used by the above procedure. Note that the new device here is for power supply at all times, and when interlocking with the operator's switch or other equipment is required, additional settings and reschedules for each drive are required.
  • Attachment / removal of devices (routers, loads) downstream of the power packet mixer 51 may be performed in a power-on state.
  • the power packet mixer 51 and the power packet router 52 periodically check their connection ports, and when the connection is confirmed, the power distribution management ECU 56 determines feasibility and reschedules, and switches at an arbitrary timing. I do.
  • a storage function is provided in the power distribution management ECU 56 connected to the power packet mixer 51, and a database for storing specification examples of various loads 54 expected to be connected in advance and time-dependent transition data of power consumption is constructed. deep. Further, the device type and power consumption specified by the operator are used as additional information. By using these pieces of information, it is possible to estimate the driving frequency and driving pattern of the connected new device. In an environment where such estimation can be performed, it is possible to automatically execute a program for estimating the type of connected device and power consumption, thereby eliminating the need for operator input operation (S100).
  • the power supply system may be configured not to include the power distribution management ECU as shown in FIG. In this case, the input device 57 and the switches 58 are connected to the power packet mixer 51.
  • the power supply system 10-4 shown in FIG. 15 has a function of recognizing each load 54 to which each power packet router 52 is connected. 54 can be retrofitted. That is, since the power packet router 52 scans the load 54 connected to the power output port 52b at the time of activation, it is possible to confirm what load is connected. Therefore, the power packet router 52 and the power packet mixer 51 can recognize the load 54-7 retrofitted to the power output port 52b.
  • the power packet router 52-2 detects the voltage change of the power output port 52b due to the removal of the load 54-7, and proceeds to the next processing using this as a trigger. 2.
  • the power packet router 52-2 sends a stop request to the power packet mixer 51 so as to stop the supply of driving power to the removed load 54-7. 3.
  • the power packet mixer 51 stops transmission of driving power to the load 54-7 in accordance with the stop request from the power packet router 52-2.
  • FIG. 18 A configuration example of the power supply system 10-5 in the embodiment of the present invention is shown in FIG.
  • the power supply system 10-5 shown in FIG. 18 includes a power packet mixer 61 and a plurality of power packet routers 62-1 to 62-3 as main components.
  • a vehicle-mounted battery (power source) 63 is connected to the power input port 61 a of the power packet mixer 61.
  • power packet routers 62-1 to 62-3 are connected to the plurality of power packet output ports 61b of the power packet mixer 61, respectively.
  • a plurality of loads 64-A to 64-D are connected to the power output port 62b of the power packet router 62-1.
  • a plurality of loads 64-2A and 64-2B are connected to the power output port 62b of the power packet router 62-2.
  • a plurality of loads 64-3A and 64-3B are connected to the power output port 62b of the power packet router 62-3.
  • the basic configuration and operation of the power packet mixer 61 and the power packet routers 62-1 to 62-3 are the same as those of the power packet mixer 21 shown in FIG. 5 and the power packet router 22 shown in FIG.
  • priorities “7”, “1”, “4”, and “2” are assigned to the loads 64-A, 64-B, 64-C, and 64-D, respectively. Assigned. Also, priorities “3” and “8” are assigned in advance to the loads 64-2A and 64-2B, respectively. Priorities “6” and “5” are assigned in advance to the loads 64-3A and 64-3B, respectively.
  • the power packet mixer 61 constantly calculates the power supply capacity and the power demand, and monitors whether these balances deviate from an appropriate range. is doing. When the state of “power supply capacity ⁇ power demand” is detected, the power packet mixer 61 performs load priority control.
  • the power supply target load is limited to a priority within the range of “1 to 5”, and power supply to other loads is temporarily stopped. Therefore, in this case, power is continuously supplied to the loads 64-B, 64-C, 64-D, 64-2A, 64-3B shown in FIG. The power supply to -A, 64-2B, 64-3A is stopped.
  • the network topology of the power supply system is not limited to the tree type as shown in FIG. 18, but may be a star type, a ring type, a bus type, or the like.
  • the power packet mixer 61 calculates the power supply capacity and the power demand.
  • the power supply mixer 61 includes a power distribution management ECU 26B as shown in FIG.
  • the power distribution management ECU 26B may calculate the magnitude of power supply and the magnitude of power demand and monitor whether these balances deviate from an appropriate range. Further, like the power supply system 10-11 described later, the power packet mixer 61 or the power distribution management ECU 26B may appropriately correct the priority of each load according to the situation of the vehicle.
  • the power supply system 10-5 it is possible to easily add a load to the main transmission path (main line) or expand (add) the network. Therefore, it is possible to unify the platform in a form that does not depend on the grade of the vehicle (product) while maintaining the merit of the power network by the power packet transmission system (reduction of wire, light weight, mounting on the vehicle) Improvement).
  • FIGS. 19 (a) and 19 (b) Two types of configuration examples of the power supply system according to the embodiment of the present invention are shown in FIGS. 19 (a) and 19 (b), respectively.
  • the power packet mixer 21 shown in FIG. 5 has only a function of receiving power from the upstream power source to generate a power packet and sending it to the downstream side of the power transmission path.
  • the power packet router 22 shown in FIG. 7 has only a function of receiving the power packet sent from the power packet mixer 21 on the upstream side of the power transmission path and supplying it to the downstream side. That is, the power packet cannot be transmitted bidirectionally.
  • the power supply system 10-7 shown in FIG. 19B includes two power packet mixers 71B-1 and 71B-2 and two power packet routers 72B-1 and 72B-2.
  • a power packet router 72B-2 is disposed in the vicinity of the power packet mixer 71B-1, and two loads 74-3 and 74-4 are connected to the output side of the power packet router 72B-2.
  • a power packet router 72B-1 is disposed in the vicinity of the power packet mixer 71B-2, and two loads 74-1 and 74-2 are connected to the output side of the power packet router 72B-1.
  • the output of the power packet mixer 71B-1 and the input of the power packet router 72B-1 are connected via the power transmission path 76, and the output of the power packet mixer 71B-2 and the power packet router 72B-2 Is connected via the power transmission path 77.
  • this power supply system 10-7 since the forward power transmission path 76 and the return power transmission path 77 must be arranged, the number of wires in the wire harness cannot be reduced. In addition, the number of power packet mixers 71B may increase.
  • the power supply system 10-6 includes one composite power packet mixer 71 and two composite power packet routers 72-1 and 72-2.
  • the composite power packet mixer 71 is a composite device having a part of the function of the power packet router 22 shown in FIG. 7 in addition to the function of the power packet mixer 21 shown in FIG. That is, the composite power packet mixer 71 has a function of receiving power packets in addition to a function of generating and sending power packets, and can be used to transmit power packets bidirectionally.
  • the composite power packet router 72 is a composite apparatus having, for example, a part of the function of the power packet mixer 21 shown in FIG. 5 in addition to the function of the power packet router 22 shown in FIG. That is, since the composite power packet router 72 has a function of generating and sending a power packet in addition to a function of receiving a power packet, the composite power packet router 72 can be used to transmit the power packet bidirectionally.
  • each of the composite power packet mixer 71 and the composite power packet routers 72-1 and 72-2 is compatible with bidirectional power packet transmission. Therefore, the composite power packet mixer 71 and the composite power packet router 72-1 are connected by a single bidirectional power transmission path 75-1, and the composite power packet mixer 71 and the composite power packet router 72-2 are connected. Are connected by a single bidirectional power transmission path 75-2. In addition, two loads 74-1 and 74-2 are connected to the output side of the composite power packet router 72-1, and two loads 74-3 and 74-4 are connected to the output side of the composite power packet router 72-2. It is.
  • the number of power transmission paths is reduced compared to the power supply system 10-7 in FIG. 19B. Therefore, the number of wires in the wire harness corresponding to the bidirectional power transmission paths 75-1 and 75-2 can be reduced.
  • the total number of routers and mixers can be reduced, it is possible to avoid an increase in the size of the device and to reduce the cost required for installing the power packet transmission technology.
  • these loads are distributed and arranged at various locations on the vehicle, and power lines for supplying power to these loads are being wired by people. A remarkable effect can be expected.
  • FIG. 20 A configuration example of the power supply system 10-8 in the embodiment of the present invention is shown in FIG.
  • the power supply system 10-8 shown in FIG. 20 includes a power packet mixer 81 and a plurality of power packet routers 82-1 to 82-4 as main components.
  • the basic configuration and operation of the power packet mixer 81 are the same as those of the power packet mixer 21 shown in FIG.
  • the basic configuration and operation of each of the power packet routers 82-1 to 82-4 is the same as that of the power packet router 22 shown in FIG. 7 or the power packet router 22B shown in FIG.
  • An in-vehicle battery 83 is connected to the input side of the power packet mixer 81 via a power transmission path 85-2.
  • the output port of the power packet mixer 81 is connected to the input side of the power packet router 82-1 via the power transmission path 85-1.
  • a ring-shaped power transmission path that passes through each of the four power packet routers 82-1 to 82-4 is formed on the output side of the power packet router 82-1. That is, the power transmission path 85-3 connects between the power packet routers 82-1 and 82-2, and the power transmission path 85-4 connects between the power packet routers 82-2 and 82-4 to transmit power.
  • a path 85-5 connects between the power packet routers 82-4 and 82-3, and a power transmission path 85-6 connects between the power packet routers 82-3 and 82-1.
  • a plurality of loads 84-1, 84-2, 84-3, 84-4 are connected to the output sides of the power packet routers 82-1, 82-2, 82-3, 82-4, respectively. .
  • each of the power packet routers 82-1 to 82-4 includes a power storage unit, even if the power transmission path 85-1 is interrupted, power is supplied to the loads 84-1 to 84-4 for a while. Can supply.
  • Each of the plurality of power packet routers 82-1 to 82-4 shown in FIG. 20 has a function for data communication with each other.
  • at least one of the plurality of power packet routers 82-1 to 82-4, the power packet mixer 81, or a device (not shown) for managing them can detect disconnection of the power transmission path 85-1. It has a function.
  • each of the plurality of power packet routers 82-1 to 82-4 has a function of accommodating power as needed. This function is realized by, for example, the control unit 45 in FIG. 7 or the control unit 45B in FIG.
  • the power supply system 10-8 illustrated in FIG. 20 operates as follows when the power transmission path 85-1 is disconnected.
  • the power packet mixer 81 or the power packet routers 82-1 to 82-4 detects the occurrence of disconnection and the position where the disconnection occurred. 2. When detecting a disconnection, the power packet mixer 81 notifies the driver of this abnormality using the indicator 89 or the like. 3. Among the plurality of power packet routers 82-1 to 82-4, those that maintain the connection state of the power transmission path communicate with each other, and share information indicating the power storage status and the like. 4). Among the plurality of power packet routers 82-1 to 82-4, it is identified whether or not the power storage amount of a specific router to which the load 84 assigned a high priority in advance is connected is sufficient, and power is insufficient If so, other routers will provide power.
  • the power stored in the power packet router 82-3 Assume that the amount is insufficient for driving the load 84-3.
  • the power packet router 82-1 and other power packet routers 82-4 that store sufficient power send out power packets addressed to the power packet router 82-3, and allow power to be accommodated. Due to this accommodation, even if the power transmission path 85-1 remains cut off, the power storage unit of the power packet router 82-3 is charged with sufficient power. It can be driven for a certain time.
  • the power supply system 10-8 includes a power distribution management ECU 26B as shown in FIG. 11, and the power distribution management ECU 26B
  • the power storage amounts of the packet routers 82-1 to 82-4 may be stored, and the power packet routers 82-1 to 82-4 may be instructed to exchange power as necessary.
  • the power management can be centrally managed by the power distribution management ECU 26B, so that it is not necessary to perform communication for power interchange between the power packet routers. Can be prevented from becoming complicated.
  • “failure diagnosis” in the present embodiment detects an abnormality in the transmission path from a change in a physical signal waveform such as a voltage value with respect to an abnormality detection pulse included in a header in the power packet received by the power packet router. .
  • FIG. 21 A configuration example of the power supply system 10-9 in the embodiment of the present invention is shown in FIG.
  • the power supply system 10-9 shown in FIG. 21 includes a power packet mixer 91 and a plurality of power packet routers 92-1 to 92-4 as main components.
  • the basic configuration and operation of the power packet mixer 91 are the same as those of the power packet mixer 21 shown in FIG.
  • the basic configuration and operation of each of the power packet routers 92-1 to 92-4 is the same as that of the power packet router 22 shown in FIG.
  • a plurality of in-vehicle batteries 93-1 and 93-2 supplying different voltages (48 [V] and 12 [V]) are connected to the input side of the power packet mixer 91 via a power transmission path 95-2. ing.
  • the output side port of the power packet mixer 91 is connected to the input of the power packet router 92-1 via the power transmission path 95-1. Note that the output voltages of the plurality of in-vehicle batteries 93-1 and 93-2 may be the same.
  • a ring-shaped power transmission path passing through each of the four power packet routers 92-1 to 92-4 is formed on the output side of the power packet router 92-1. That is, the power transmission path 95-3 connects between the power packet routers 92-1 and 92-2, and the power transmission path 95-4 connects between the power packet routers 92-2 and 92-4 to transmit power.
  • a path 95-5 connects between the power packet routers 92-4 and 92-3, and a power transmission path 95-6 connects between the power packet routers 92-3 and 92-1.
  • a plurality of loads 94-1, 94-2, 94-3, 94-4 are connected to the output side of each of the power packet routers 92-1, 92-2, 92-3, 92-4. .
  • the power packet transmitted by the power packet mixer 91 or the like is composed of a header 31D, a payload, and a footer. Furthermore, as shown in FIG. 21, a degradation diagnosis pulse 31Da having a short time width is assigned to the header 31D.
  • the deterioration diagnosis pulse 31Da is suitable for diagnosing the deterioration of the wire harness because it includes a broadband signal component.
  • the following deterioration may occur in each electric wire of the wire harness due to the influence of aging deterioration.
  • the electrical characteristics of the transmission path are deteriorated. Therefore, especially in the case of a signal such as the deterioration diagnosis pulse 31Da having a short pulse width including a high-frequency component, loss during transmission increases. .
  • a change occurs between the amplitude (Vd2) of the voltage of the diagnostic pulse 31Da. Therefore, the “failure diagnosis” of the wire harness can be performed by detecting such a voltage change or waveform change of the deterioration diagnosis pulse 31Da.
  • a plurality of in-vehicle batteries 93-1 and 93-2 having different output voltages are connected to the input of the power packet mixer 91, so that the power transmission path 95-
  • the voltage of the power packet 30D output to 1 also changes to two or more types depending on the timing difference.
  • the portion of the header 31D is created based on one predetermined voltage among the outputs of the in-vehicle batteries 93-1 and 93-2 so that the voltage (amplitude) does not change. Therefore, the voltage on the transmission side of the deterioration diagnosis pulse 31Da is constant.
  • the power packet router 92-1 uses the deterioration diagnosis pulse 31Da from the header 31D of the power packet 30D received from the power transmission path 95-1. And the voltage value (Vd2) of the deterioration diagnosis pulse 31Da is measured. Specifically, the peak value or average value of the voltage of the deterioration diagnosis pulse 31Da is detected. By comparing this voltage value (Vd2) with, for example, a predetermined normal value, the presence or absence of a failure in the power transmission path 95-1 can be diagnosed.
  • information indicating the voltage value (Vd1) of the deterioration diagnosis pulse 31Da in the power packet 30D transmitted from the power packet mixer 91 may be included in the header 31D of the power packet 30D and transmitted.
  • the power packet router 92-1 extracts information on the voltage value (Vd1) from the header 31D of the received power packet 30D, and sets the voltage difference between the voltage value (Vd1) and the voltage value (Vd2). Compared with a predetermined threshold value, it is possible to diagnose the presence or absence of a failure in the power transmission path 95-1.
  • the deterioration diagnosis pulse 31Da it is conceivable to combine a pulse having a small pulse width and a pulse having a larger pulse width. In that case, the presence or absence of a failure in the power transmission path 95-1 can be diagnosed based on the difference or ratio between the voltage of the pulse having a small pulse width and the voltage of the pulse having a large pulse width. That is, since a signal having a small pulse width is more susceptible to the deterioration of the transmission path, the presence / absence of a failure can be diagnosed based on the difference in voltages of a plurality of signals having different pulse widths.
  • the power packet mixer 91 includes information indicating the voltage value (Vd1) of the deterioration diagnosis pulse 31Da in the power transmission information 28B and transmits it. Then, the power packet router 92-1 transmits information indicating the voltage value (Vd2) of the deterioration diagnosis pulse 31Da of the received power packet 30D in the power reception information 27B, and the power distribution management ECU 26 determines the voltage value (Vd1). The difference between the voltage and the voltage value (Vd2) may be compared with a predetermined threshold value to diagnose the presence or absence of a failure in the power transmission path 95-1.
  • the power supply system 10-9 may perform the same operation as in FIG. That is, the distribution management ECU 26B receives the information on the voltage value (Vd2) from the power packet router 92-1 after receiving the power transmission information 28B including the information on the voltage value (Vd1) until the timeout of the reception information reception waiting timer. If the power reception information 27B including “No” is not received, it is determined that an abnormality such as disconnection or short circuit has occurred in the power distribution path (S76), and power distribution through the same power distribution path is not performed (S77). For example, in the power supply system 10-9 shown in FIG. 21, the power transmission paths between the four power packet routers 92-1 to 92-4 are connected in a ring shape. You can select multiple routes. Therefore, for example, when a transmission line failure occurs in the power transmission path 95-3, it is also possible to reflect the result of the failure diagnosis and automatically switch to the power transmission path 95-6 to transmit the power packet 30D. It is done.
  • the power supply system 10-9 of this embodiment it is possible to reliably detect abnormalities in the power distribution path including disconnection and short circuit (dead short) without using special wiring or equipment. Moreover, it is possible to directly detect an abnormality in the wire harness itself that is actually distributing power.
  • the power supply system 10-11 shown in FIG. 22 includes a power packet mixer 111, a power packet router 112, and a power distribution management ECU 116 as main components.
  • the basic configuration and operation of the power packet mixer 111 are the same as those of the power packet mixer 21 shown in FIG. 5, for example.
  • the basic configuration and operation of the power packet router 112 are the same as those of the power packet router 22 shown in FIG. 7, for example.
  • the basic configuration and operation of the power distribution management ECU 116 are the same as, for example, the power distribution management ECU 26 shown in FIG. 9.
  • the power distribution management ECU 116 is configured by a body ECU, for example.
  • a plurality of in-vehicle batteries (power supplies) 113 are connected to the input side of the power packet mixer 111 via a power transmission path 115-2.
  • the output of the power packet mixer 111 and the input of the power packet router 112 are connected via a power transmission path 115-1.
  • a plurality of loads 114-1 and 114-2 are connected to the output side of the power packet router 112.
  • the voltage which the some vehicle-mounted battery (power supply) 113 outputs it may be the same and may mutually differ.
  • the power packet mixer 111 sequentially generates the power packets 117-1, 117-2, 117-3 based on the power supply power supplied from the in-vehicle battery 113, and passes through the power transmission path 115-1. It can be sent to the power packet router 112. Further, the power packet router 112 can supply necessary power to the loads 114-1 and 114-2.
  • the power distribution management ECU 116 has a function of monitoring the charge amounts of the plurality of in-vehicle batteries 113.
  • the power distribution management ECU 116 is connected to the power packet mixer 111 and can perform power feeding control on the power packet mixer 111.
  • the charge amount of the in-vehicle battery 113 may be insufficient for some reason.
  • the power packet mixer 111 supplies all the power packets required to drive the loads 114-1 and 114-2 to the power packet router 112. It becomes impossible. Accordingly, the operations of the loads 114-1 and 114-2 are stopped.
  • the distribution management ECU 116 manages the level of priority for each of the plurality of loads 114-1, 114-2. This priority is not fixed in advance and changes according to the situation at that time.
  • the power distribution management ECU 116 determines the contents of the power supply priority table prepared in advance and information indicating the situation at that time, for example, the difference in the driving environment of the vehicle, the state of the occupant, the difference in the outside environment such as the temperature, light and dark. Based on this, the priority levels of the loads 114-1 and 114-2 are dynamically determined. For example, the example shown in FIG. 22 represents a situation in which the priority of one load 114-1 is high and the priority of the other load 114-2 is low.
  • the power distribution management ECU 116 When the power distribution management ECU 116 detects a state in which the charge amount of the in-vehicle battery 113 is insufficient (a state in which the remaining amount of power storage has decreased) based on the result of monitoring the charge amount of the in-vehicle battery 113, the power distribution management ECU 116 Execute priority control.
  • the power packets 117-1, 117-3 addressed to the load 114-1 and the power packet 117-2 addressed to the load 114-2 are displayed.
  • the output of the power packet 117-2 addressed to the load 114-2 with the low priority is stopped or suppressed by the priority control of the power distribution management ECU 116.
  • the power of the power packet 117-3 is increased by the amount of the stopped power packet 117-2, and the increased power is transmitted to the power packet router 112.
  • Each power packet 117-1 to 117-3 sent out by the power packet mixer 111 is composed of a header 31 and a payload 32, for example, in the same manner as the power packet 30 shown in FIG.
  • the header 31 includes a synchronization signal 31a, destination information 31b, and transmission power information 31c.
  • the destination of the power packets 117-1 to 117-3 can be designated by the destination information 31b.
  • the amount of power transmitted to each destination can be notified to the power packet router 112 by the transmitted power information 31c.
  • the power packet mixer 111 sends a power packet generated based on the power transmission instruction information received from the power distribution management ECU 116 to a predetermined output port.
  • the power packet router 112 collates the destination information included in the header of the power packet received at the input port. As a result of the collation, when it is addressed to the load connected to the own router, the power of the payload is charged in the power storage unit and the power of the power storage unit is output to a predetermined output port. As a result of the collation, when the packet is destined for a load connected to another router that relays the own router, a power packet addressed to the predetermined router is generated from the power of the power storage unit, output to a predetermined output port, and transferred to the predetermined router. The power packet router 112 notifies the power distribution management ECU 116 of power distribution request information as necessary based on the driving power of the load connected to the output port and the state of charge of the power storage unit.
  • the distribution management ECU 116 When receiving the distribution request information notification from the power packet router 112, the distribution management ECU 116 compares the charge amount of the in-vehicle battery 113 with the required power, and notifies the power packet mixer 111 of the power transmission instruction information when the charge amount exceeds. .
  • the power distribution management ECU 116 prohibits a power transmission instruction addressed to the in-vehicle load to which a priority lower than the priority of the in-vehicle load of the distribution request source is assigned. Is ensured, and the power packet mixer 111 is notified of power transmission instruction information for the in-vehicle load as the distribution request source.
  • the power distribution management ECU 116 does not perform the power transmission instruction to the power distribution request source vehicle load.
  • the priority assigned to each in-vehicle load is notified by, for example, power distribution request information from the power packet router 112 and managed by the power distribution management ECU 116.
  • the power distribution management ECU 116 determines and manages the priority of each load based on the type of each load and the vehicle state (traveling state, occupant state, outside environment (temperature, light and dark), etc.).
  • the power supply system 10-11 may perform priority determination and management by the power packet mixer 111 instead of the power distribution management ECU 116, similarly to the power supply system 10-5 shown in FIG.
  • FIG. 23B and FIG. 23C show examples of changes in the power packet output to the transmission path of each part in different operations.
  • the power supply system 10-12 shown in FIG. 23A includes a power packet mixer 121, a plurality of power packet routers 122-1 to 122-3, and a power distribution management ECU 126 as main components.
  • the basic configuration and operation of the power packet mixer 121 are the same as those of the power packet mixer 21 shown in FIG.
  • the basic configuration and operation of each of the power packet routers 122-1 to 122-3 is the same as that of the power packet router 22 shown in FIG. 7, for example.
  • the basic configuration and operation of the power distribution management ECU 126 are the same as, for example, the power distribution management ECU 26 shown in FIG.
  • a vehicle-mounted battery (power source) 123 is connected to the input side of the power packet mixer 121.
  • input ports of a plurality of power packet routers 122-1 and 122-2 are connected to a plurality of output ports of the power packet mixer 121 via power transmission paths 127-2 and 127-5.
  • the plurality of output ports of the power packet router 122-1 are connected to the power packet router 122-3 and the plurality of loads 124-1 and 124-2 via the power transmission path 127-3.
  • a plurality of loads 124-5 and 124-6 are connected to a plurality of output ports of the power packet router 122-2 via a power transmission path 127-6.
  • a plurality of loads 124-3 and 124-4 are connected to a plurality of output ports of the power packet router 122-3 via a power transmission path 127-4.
  • the power distribution management ECU 126 is connected so as to be able to communicate with the power packet mixer 121.
  • FIG. 23B shows the states of the power transmission lines 127-1 to 127-6 when the power supply system 10-12 shown in FIG. 23 performs a general operation.
  • the power transmission path 127-1 corresponds to the state of the power transmission path connected to all the output ports of the power packet mixer 121.
  • each of the power packets P1 to P6 is a packet addressed to a different load (LOAD) 124-1 to 124-6.
  • the power of the power packet P1 addressed to the load 124-1 and the power packet P2 addressed to the load 124-2 is transmitted from the power transmission path 127-1 to the destination via the power transmission paths 127-2 and 127-3. Sent.
  • the power of the power packet P3 addressed to the load 124-3 and the power packet P4 addressed to the load 124-4 passes from the power transmission path 127-1 to the power transmission paths 127-2, 127-3, 127-4. And sent to the destination. Further, the power of the power packet P5 addressed to the load 124-5 and the power packet P6 addressed to the load 124-6 is transmitted from the power transmission path 127-1 to the destination via the power transmission paths 127-5 and 127-6. Sent.
  • the upstream power packet mixer 121 When the load on the power transmission path is increased (corresponding to the state of FIG. 23B), the upstream power packet mixer 121 generates a single power packet by combining a plurality of power packets with different destinations. To do. 2. Each downstream power packet router 122 or power packet mixer 121 separates one power packet into a plurality of power packets for each destination based on the header information of the received power packet, and performs processing for each separated power packet. Execute.
  • FIG. 23C shows the states of the power transmission paths 127-1 to 127-6 when the power supply system 10-12 shown in FIG. 23 performs the above characteristic control.
  • FIG. 23C shows the states of the power transmission paths 127-1 to 127-6 when the power supply system 10-12 shown in FIG. 23 performs the above characteristic control.
  • P1, P2, P3, P4, P5 addressed to the loads 124-1 to 124-6 are used.
  • P6 is assumed to be transmitted from the power packet mixer 121 in a substantially continuous state in time.
  • the power packet mixer 121 collects the four power packets P1, P2, P3, and P4 that pass through the common power transmission path 127-2 as a result of collecting the power packet router 122. -1 is generated and sent to the power transmission path 127-1.
  • the power packet mixer 121 collects the two power packets P5 and P6 passing through the common power transmission path 127-5 as a result of collecting the power packet router 122-2.
  • the addressed power packet PR2 is generated and sent to the power transmission path 127-1.
  • the power packet PR1 sent out by the power packet mixer 121 reaches the power packet router 122-1 via the power transmission path 127-2.
  • the power packet router 122-1 processes the four power packets P1, P2, P3, and P4 included in the power packet PR1 separately from each other based on the information in the packet header. Accordingly, the powers of the separated power packets P1 and P2 are supplied to the destination loads 124-1 and 124-2, respectively.
  • the power packet router 122-1 collects the separated power packets P3 and P4, generates a power packet PR3 destined for the power packet router 122-3, and outputs it. Also, the power packet router 122-3 receives the power packet PR3, disassembles it, extracts the power packets P3 and P4, and processes them individually. Therefore, the power of the power packets P3 and P4 is supplied to the destination loads 124-3 and 124-4, respectively.
  • the power packet PR2 sent out by the power packet mixer 121 reaches the power packet router 122-2 via the power transmission path 127-5. Receiving this, the power packet router 122-2 separates and processes the two power packets P5 and P6 included in the power packet PR2 based on the information in the packet header. Therefore, the power of the separated power packets P5 and P6 is supplied to the destination loads 124-5 and 124-6, respectively.
  • the power addressed to a plurality of loads is collected into a power packet upstream in the distribution system, and reconstructed into power packets addressed to each load based on the header information downstream. Power transmission.
  • the time corresponding to the information tag of the header transmitted for each packet is used as the power supply. Can be spent on the payload for. For example, assuming that all packets use information tags having the same number of bits, an increase in transmission power can be expected as compared with the case of general control.
  • FIG. 24 shows a configuration example of the power supply system 10-13 in the embodiment of the present invention.
  • the power supply system 10-13 shown in FIG. 24 forms a ring topology. That is, the power packet mixers 131-1 and 131-2 and the power packet routers 132-1, 132-2, 132-3, and 132-4 as main components are connected via a power transmission path connected in a ring shape. Are connected to each other. Further, the power distribution management ECU 136 is connected to the power packet mixers 131-1 and 131-2 via the communication lines 137-1 and 137-2.
  • each of the power packet mixers 131-1 and 131-2 are the same as those of the power packet mixer 21 shown in FIG. 5, for example.
  • the basic configuration and operation of each of the power packet routers 132-1 to 132-4 is the same as that of the power packet router 22 shown in FIG. 7, for example.
  • the basic configuration and operation of the power distribution management ECU 136 are the same as those of the power distribution management ECU 26 shown in FIG. 9, for example.
  • a plurality of in-vehicle batteries 133-1 and 133-2 are connected to the input of the power packet mixer 131-1.
  • a plurality of in-vehicle batteries 133-3 and 133-4 are connected to the input of the power packet mixer 131-2. Note that the voltages output from the plurality of in-vehicle batteries 133-1, 133-2, 133-3, 133-4 may be the same or different from each other.
  • a plurality of loads 134-1 are connected to a plurality of output ports of the power packet router 132-1.
  • a plurality of loads 134-2 are connected to a plurality of output ports of the power packet router 132-2.
  • a load 134-3 is connected to a plurality of output ports of the power packet router 132-3.
  • a plurality of loads 134-4 are connected to a plurality of output ports of the power packet router 132-4.
  • a plurality of power packet mixers 131-1 and 131-2 may simultaneously transmit power packets on a common power transmission path connected in a ring shape. There is. In some cases, a plurality of transmitted power packets collide on a common power transmission path.
  • the power supply system 10-13 shown in FIG. 24 performs the following special control in order to avoid collision of a plurality of transmitted power packets on a common power transmission path.
  • a power management node that manages the entire network that is, the power distribution management ECU 136 generates a packet transmission frame configured by connecting a plurality of time slots.
  • the allocation information of the power allocated to each subsequent slot is stored in the head slot of this packet transmission frame.
  • Each power packet mixer 131 and power packet router 132 on the network detect the transmission / reception timing of the power packet based on the information of the head slot of the packet transmission frame appearing on the network.
  • the time slots constituting the packet transmission frame are assigned so that the timings of the power packets transmitted by the power packet mixers 131 and the power packet router 132 do not coincide with each other.
  • one packet transmission frame is configured by four time slots T1, T2, T3, and T4, and packet transmissions of the first, second, and third power packet mixers 131 are respectively performed in the time slots T2, T3, and T4.
  • the distribution management ECU 136 controls to store the contents of the assignment in the first time slot T1.
  • the packet transmission frame assigned by the power distribution management ECU 136 and the information on each slot can be stored in the information tag in the header of the power packet sent out by each power packet mixer 131.
  • Each power packet mixer 131 and power packet router 132 can prevent the information tag from deteriorating by sending a packet at the assigned timing. Therefore, even when the ring topology power supply system 10-13 shown in FIG. 24 is configured, it is possible to prevent a plurality of power packets from colliding on the shared network.
  • the power distribution management ECU 136 can reconfigure the time slot configuration to an optimum state when, for example, the operator turns on the power switch or connects a new load.
  • a communication function required between each power packet mixer 131 and the power packet router 132 can be realized by using an information tag of the power packet.
  • communication may be performed by placing a signal on a frequency different from the fundamental frequency of the clock of the power packet using a frequency division multiplexing method or the like, or wireless communication may be used.
  • the power supply system 10-13 may adopt other topologies such as a tree type or a star type.
  • FIG. 26 shows a configuration example-14 of the power supply system including the non-contact power supply technology.
  • the power supply system 10-14 shown in FIG. 26 includes a power packet mixer 11 and a power packet router 12 as in the above-described power supply system.
  • the input of the power packet mixer 11 is connected to an in-vehicle battery 13A that outputs a power supply voltage of 12 [V] and an in-vehicle battery 13B that outputs a power supply voltage of 48 [V].
  • the basic configuration and operation of the power packet mixer 11 and the power packet router 12 are the same as those in the above-described embodiment. That is, the power packet mixer 11 generates the power packet 30 based on the DC power source power supplied from the in-vehicle batteries 13A and 13B. The generated power packet 30 is supplied to the input of the power packet router 12 via the power transmission path 16A.
  • the power packet router 12 acquires information such as a destination from the header 31 of the input power packet 30, and takes out power from the payload 32 and stores it in the power storage units 15A and 15B shown in FIG. Further, the stored electric power is supplied to the load.
  • the load 14A is directly connected to the 0th output port of the power packet router 12 by wire, but the other loads 14B and 14C are connected using a non-contact power supply technology. ing. Note that the number n of loads connected to the output of the power packet router 12 by the non-contact power feeding technique can be increased or decreased as necessary.
  • an output switch 17 is provided in each of the n output port units. That is, AC power having a desired frequency can be output by periodically turning on and off the output switch 17 as an AC output circuit according to a predetermined condition.
  • the first to nth power transmission circuits 18-1 to 18-n are connected to the first to nth output ports of the power packet router 12, respectively.
  • the first power transmission circuit 18-1 includes an inductor L11 and a capacitor C11 connected in series with each other. It is also possible to change to a circuit in which these are connected in parallel.
  • the inductor L11 and the capacitor C11 of the power transmission circuit 18-1 form a resonance circuit. That is, the circuit impedance becomes an extreme value at a specific resonance frequency f0 corresponding to the time constants of the inductor L11 and the capacitor C11.
  • the second to nth power transmission circuits are the same as the power transmission circuit 18-1.
  • the resonance frequency f0 may be common to all of the first to nth power transmission circuits 18-1 to 18-n, or may be set to independent frequencies.
  • the first to nth power receiving circuits 19-1 to 19-n are arranged in a non-contact state at positions facing the power transmitting circuits 18-1 to 18-n, respectively.
  • the first power receiving circuit 19-1 includes an inductor L12 and a capacitor C12 connected in series with each other. It is also possible to change to a circuit in which these are connected in parallel.
  • the inductor L12 and the capacitor C12 of the power receiving circuit 19-1 form a resonance circuit. That is, the impedance of the circuit becomes an extreme value at a specific resonance frequency f0 corresponding to the time constants of the inductor L12 and the capacitor C12.
  • the second to nth power receiving circuits are similar to the power receiving circuit 19-1.
  • the resonance frequency f0 in the first power transmission circuit 18-1 and the resonance frequency f0 in the first power reception circuit 19-1 are designed to be a common frequency.
  • the power packet router 12 supplies AC power having the same frequency as the resonance frequency f0 to the power transmission circuit 18-1, electromagnetic induction between the inductor L11 on the power transmission circuit 18-1 side and the inductor L12 on the power reception circuit 19-1 side. These combine. Therefore, AC power is transmitted from the primary-side inductor L11 to the secondary-side inductor L12 from the circuits coupled in a non-contact manner.
  • the frequency of the AC power supplied to the power transmission circuits 18-1 to 18-n is set to the resonance frequency f0 of the power transmission circuits 18-1 to 18-n.
  • the power packet router 12 supplies AC power having a frequency that matches the resonance frequency f0 of the power transmission circuit 18-1 and the power reception circuit 19-1 to the power transmission circuit 18-1, so that this AC power is supplied to the power transmission circuit 18-1. Therefore, it is possible to perform non-contact power feeding with high efficiency to the power receiving circuit 19-1. The same applies to the second to nth power transmission circuits and power reception circuits.
  • the power packet router 12 uses a frequency that matches the common resonance frequency f0. AC power can be generated by the output switch 17 and supplied to each of the power transmission circuits 18-1 to 18-n.
  • a load 14B is connected to the output of the power receiving circuit 19-1. Therefore, the power received by the power receiving circuit 19-1 can be supplied to the load 14B.
  • a power transmission circuit and a power receiving circuit are not used, and are connected to the output port of the power packet router 12 by wire as shown in FIG.
  • Information on the resonance frequency f0 necessary for the power packet router 12 to properly control the power transmission circuits 18-1 to 18-n is stored in the power packet mixer 11 in advance, or is stored in the power distribution management ECU 26 described above. It is assumed that it will be retained. Then, information about the resonance frequency f0 is provided from the power distribution management ECU 26 or the power packet mixer 11 to the power packet router 12.
  • the time length and the sending interval for each power packet 30 are made to coincide with the resonance frequency f0 of the power transmission circuits 18-1 to 18-n.
  • the power packet 30 is divided and transmitted.
  • the power packet router 12 AC power matching the resonance frequency f0 is generated by the power packet 30 periodically received from the power transmission path 16A. If the power packet router 12 supplies the AC power as it is to the power transmission circuits 18-1 to 18-n, the AC power of the power transmission circuits 18-1 to 18-n is not contacted with the power reception circuits 19-1 to 19-n. Power can be supplied with.
  • the process of dividing the power packet 30 transmitted from the power packet mixer 11 so as to coincide with the resonance frequency f0 may be performed for the entire power packet 30 or only for the payload 32. Further, the process of dividing the power packet 30 may be performed inside the power packet router 12.
  • a side turn signal lamp is provided on a vehicle as a direction indicator for giving a signal of turning left or right.
  • a hazard lamp There is also a hazard lamp. These lamps need to be controlled to blink at a constant cycle during operation.
  • the lamp control circuit shown in FIG. 27 includes a column switch 302, a hazard switch 303, an ECU (electronic control unit) 304, a flasher ASSY 310, and left and right side turn signal lamps 305 and 306.
  • the flasher ASSY 310 includes two independent relays 311 and 312.
  • the electric power of the in-vehicle battery 301 is supplied to the side turn signal lamps 305 and 306 via the contacts of the relays 311 and 312 in the flasher ASSY 310, respectively.
  • the side turn signal lamps 305 and 306 can be blinked.
  • the ECU 304 constantly monitors the state of the column switch 302 and the hazard switch 303. When the column switch 302 or the hazard switch 303 is turned on, the ECU 304 controls the relays 311 and 312 in the flasher ASSY 310 and the side turn signal lamps 305 and 306. Blinks.
  • ESS Emergency Stop signal System
  • the ESS controls the blinking of the lamp at the blinking cycle for emergency braking.
  • a lamp control circuit such as a mechanical relay
  • FIG. 28 A configuration example of the lamp control circuit using the power packet is shown in FIG.
  • the lamp control circuit shown in FIG. 28 includes a power packet mixer 323, a power packet router 327, batteries 321, 322, a column switch 302, a hazard switch 303, left and right side turn signal lamps 328, 329, and a load 330.
  • the voltages of the batteries 321 and 322 may be the same or different from each other.
  • the column switch 302 and the hazard switch 303 are connected to the input of the power packet mixer 323.
  • a power packet mixer 323 and a power packet router 327 are connected via a power transmission path 326.
  • Left and right side turn signal lamps 328 and 329 and a load 330 are connected to a plurality of output ports of the power packet router 327.
  • the power packet mixer 323 basically generates the power packet 30 based on the direct-current power supplied from the batteries 321 and 322 and supplies it to the power transmission path 326.
  • the column switch 302 and the hazard switch 303 are turned on and off by the driver's manual operation, and generate turn-on / flash command signals for the direction indicator and the hazard lamp.
  • the power packet mixer 323 When the power packet mixer 323 receives the lamp lighting command signal from the column switch 302 or the hazard switch 303, the power packet mixer 323 starts transmitting the power packet 30 to the power packet router 327.
  • the header 31 of each power packet 30 to be transmitted includes information for specifying the destination load (328, 329, 330).
  • the power packet router 327 refers to the contents of the header 31 of the power packet 30 received from the power packet mixer 323 and identifies the load and type of the power supply destination. For example, when the power packet router 327 receives the power packet 30 whose destination load is the side turn signal lamp 328 or 329, the power packet router 327 does not pass the power of the power packet 30 through the power storage units 15A and 15B. , Supplied directly to the side turn signal lamp 328 or 329.
  • power transmission from the power packet mixer 323 is time division transmission using the power packet 30. Therefore, the power packet mixer 323 can repeatedly transmit the power packet 30 addressed to the side turn signal lamp 328 or 329, for example, at regular time intervals. In this case, by supplying the power packet 30 received by the power packet router 327 to the side turn signal lamp 328 or 329 as it is, the side turn signal lamp 328 or 329 blinks at a certain time interval at which the power packet 30 is transmitted. Will do.
  • the blinking operation of the side turn signal lamp 328 or 329 can be realized without the power packet router 327 performing special blinking control. Furthermore, if the power packet mixer 323 changes the transmission interval of the power packets 30, the blinking cycle of the side turn signal lamps 328 and 329 can be changed. Therefore, it is possible to easily add, for example, an ESS lamp blinking function without changing the circuit configuration shown in FIG.
  • the payload 32 of the power packet 30 may be divided into a plurality of parts in order to allow the lamp to blink in a short time period.
  • information indicating that the power is dedicated to the signal lamp is written in the header 31 of the power packet 30 by the power packet mixer 323.
  • a footer is added to the end of the payload 32 of each power packet 30.
  • the power packet mixer 323 writes end information instructing the end of blinking of the lamp in this footer.
  • the power packet router 327 ends the power supply to the corresponding lamp according to the footer end information, and ends the blinking operation.
  • FIG. 29 shows an operation example of the power packet mixer in the lamp control circuit of FIG. The operation of FIG. 29 will be described below.
  • the power packet mixer 323 constantly monitors the signal from the column switch 302 and the signal from the hazard switch 303 (S301, S302).
  • the side turn request signal “Column_Flag” from the column switch 302 is turned on (1)
  • the left side turn lighting request signal “LAMP_L” is referred to in the next step S303 to identify which lamp lighting request is left or right. To do.
  • the power packet mixer 323 sends a left side turn power packet “LAMP_Lp” to the power transmission path 326 in step S306.
  • This left side turn power packet “LAMP_Lp” holds information indicating that the destination of the power is the side turn signal lamp 328 and information indicating that the power is dedicated to the signal lamp in the header 31.
  • the power packet mixer 323 sends a right side turn power packet “LAMP_Rp” to the power transmission path 326 in step S305.
  • the right side turn power packet “LAMP_Rp” holds information indicating that the destination of the power is the side turn signal lamp 329 and information indicating that the power is dedicated to the signal lamp in the header 31.
  • the power packet mixer 323 proceeds from step S302 to S304. Then, the power packet mixer 323 sends a left and right side turn power packet “LAMP_LRp” to the power transmission path 326 in order to cause the left and right lamps to blink simultaneously.
  • the left and right side turn power packet “LAMP_LRp” holds information indicating that the destination of the power is the side turn signal lamps 328 and 329 and information indicating that the power is dedicated to the signal lamp in the header 31. Thereby, the instruction
  • FIG. 30 shows an operation example of the power packet router in the lamp control circuit of FIG. The operation of FIG. 30 will be described below.
  • the power packet router 327 performs an operation according to the type of the power packet 30 that has arrived at the input via the power transmission path 326. That is, the power packet router 327 distinguishes the left side turn power packet “LAMP_Lp”, the right side turn power packet “LAMP_Rp”, and the left and right side turn power packet “LAMP_LRp” by referring to the header 31 of the power packet 30 ( S311 to S313).
  • the power packet router 327 When the power packet router 327 receives the left side turn power packet “LAMP_Lp”, the power packet router 327 proceeds from S 311 to S 315 and supplies the power of the packet to the left side turn signal lamp 328.
  • the power packet router 327 proceeds from S312 to S314, and supplies the power of the packet to the right side turn signal lamp 329.
  • the power packet router 327 When receiving the left and right side turn power packet “LAMP_LRp”, the power packet router 327 proceeds from S313 to S314 and S315, and supplies the power of the packet to the left and right side turn signal lamps 328 and 329 simultaneously.
  • the lamp control circuit shown in FIG. 28 provides a function for blinking the turn signal lamp and the hazard lamp, but can also be used to drive other loads intermittently. .
  • it can be used to intermittently drive a wiper motor or to adjust the amount of heat generated by intermittently driving various heaters.
  • the lamp control circuit shown in FIG. 28 When the lamp control circuit shown in FIG. 28 is adopted, for example, the parts of the flasher ASSY 310 shown in FIG. 27 become unnecessary, and the apparatus configuration is simplified. Moreover, even when a function such as ESS is added, it is not necessary to add an extra circuit. For example, it can be dealt with only by changing a program in the power packet mixer 323 or the like.
  • the power packet mixer 21, the power packet router 22, and the power distribution management ECU 26 require power supply power to operate. Therefore, it is assumed that the power source power required by the power packet mixer 21, the power packet router 22, and the power distribution management ECU 26 is also supplied from the power sources 23-1 to 23-n.
  • the power sources 23-1 to 23-n are commonly used as the power source of the power packet mixer 21, the power packet router 22, and the power distribution management ECU 26 as the control system, and the power source of the loads 24-1 to 24-n. become. However, in that case, the power supplies 23-1 to 23-n need to have the ability to supply power that is greater than the total power required by the loads 24-1 to 24-n.
  • the power source power required by the power packet mixer 21, the power packet router 22, the power distribution management ECU 26, and the like is supplied from a dedicated power source different from the power sources 23-1 to 23-n.
  • FIG. 31 shows a configuration example-15 of the power supply system in the embodiment of the present invention.
  • the basic configuration of the power supply system 10-15 shown in FIG. 31 is the same as that of the power supply system 10-3 shown in FIG.
  • a dedicated power supply 161 that supplies power to the control system is added.
  • the dedicated power supply 161 is a dedicated battery (secondary battery) independent from the other power supplies 23-1 to 23-n.
  • the output of the dedicated power supply 161 is connected to the power supply input terminals of the power packet routers 22B-1, 22B-2, and 22B-3 via the distribution line 162.
  • the output of the dedicated power supply 161 is connected to the power input terminal of the power packet mixer 21B via the distribution line 163.
  • the output of the dedicated power supply 161 is connected to the power input terminal of the power distribution management ECU 26 ⁇ / b> B via the distribution line 164.
  • the distribution lines 163 and 164 may or may not be present. That is, in FIG. 31 and FIG. 32 described below, an example of a distribution line that becomes unnecessary depending on the situation is indicated by a broken line. That is, when the influence of the power consumption of the power packet mixer 21B and the power distribution management ECU 26B is small, power is supplied to the power packet mixer 21B and the power distribution management ECU 26B from the power sources 23-1 to 23-n common to the load. May be.
  • FIG. 32 shows a configuration example-16 of the power supply system in the embodiment of the present invention.
  • a power supply system 10-16 shown in FIG. 32 is a modification of the power supply system shown in FIG. That is, in the power supply system 10-16 shown in FIG. 32, an energy harvesting mechanism 165 having a function of charging the dedicated power supply 161 is added. The rest is the same as the configuration of FIG.
  • the energy harvesting mechanism 165 one that collects mechanical vibration energy generated when driving a switch for operating a vehicle body system and generates power can be assumed. Moreover, you may employ
  • the configuration of the power packet mixer 21B is the same as that in FIG.
  • the configuration of each of the power packet routers 22B-1 to 22B-3 shown in FIGS. 31 and 32 is the same as that shown in FIG.
  • the configuration of the power distribution management ECU 26B shown in FIGS. 31 and 32 is the same as that of FIG.
  • the configuration of the power packet 30 generated by the power packet mixer 21B shown in FIGS. 31 and 32 is the same as that in FIG.
  • FIG. 33 An example of the operation of the power packet routers 22B-1 to 22B-3 is shown in FIG. The operation shown in FIG. 33 is the same as the operation shown in FIG. 8 described above except that steps S32B and S34B are changed.
  • each power packet router 22B-1 to 22B-3 analyzes the header 31 of the power packet 30 that has arrived at the input, and measures the pulse (payload 32) voltage. That is, when each power packet 30 is generated by the power packet mixer 21B based on a plurality of power supplies having different voltages, for example, the power packets 30 such as PPH and PPL having different voltages are different as shown in FIG. It is input to each power packet router 22B-1 to 22B-3 at timing. Therefore, in order to grasp the voltage difference of each power packet 30, each power packet router 22B-1 to 22B-3 measures the voltage of the pulse in S32B.
  • each power packet router 22B-1 to 22B-3 charges the power storage unit with the power of the payload 32 of the power packet 30 addressed to itself.
  • the value of the received power amount charged here can be calculated based on the pulse voltage measured in S32B and the length of the payload 32.
  • FIG. 34 shows the operation of the power distribution management ECU 26B for instructing power transmission to the dedicated power source 161 shown in FIGS. The operation of FIG. 34 will be described below.
  • the power distribution management ECU 26B intermittently monitors the remaining power of the dedicated power supply 161 after startup (S431). When the detected remaining power level falls below a predetermined value, control is performed so that the power packet 30 supplies insufficient power from the power sources 23-1 to 23-n for driving the load. That is, the power distribution management ECU 26B generates power transmission instruction information for instructing the power transmission required by the dedicated power supply 161 in S433, and the power distribution management ECU 26B notifies the power packet mixer 21B of this power transmission instruction information in S434.
  • the power packet mixer 21B sends the power packet 30 to the distribution line 163 according to the instruction.
  • the dedicated power supply 161 receives the power packet 30 via the distribution line 163 and takes in insufficient power from the payload 32 of the power packet 30. Note that steps S435 to S441 in FIG. 34 are the same as those in FIG.
  • the power distribution management ECU 26B executes the operation shown in FIG. 34, it can be managed so that the remaining power of the dedicated power source 161 is maintained at a predetermined level or more.
  • the power of the power supplies 23-1 to 23-n for driving the load is consumed by other than the normal loads 24-A to 24-C. Even in such a case, the amount of power consumed from the power supplies 23-1 to 23-n can be accurately grasped based on the number of power packets 30 transmitted from the power packet mixer 21B.
  • FIG. 35 shows the operation of the power distribution management ECU 26B for supplying power from the dedicated power supply 161 to the input of the power packet mixer 21B shown in FIG. The operation of FIG. 35 will be described below.
  • the power distribution management ECU 26B performs control so that power supply from the dedicated power supply 161 to the power packet mixer 21B is started immediately before the power packet mixer 21B is notified of the power transmission instruction information. In addition, after confirming the power reception information from the power packet router 22B, the power supply stop from the dedicated power supply 161 to the power packet mixer 21B is controlled.
  • the process proceeds from S418 to S418B in FIG. 35, and the power distribution management ECU 26B performs power supply ON control on the power packet mixer 21B. As a result, power supply from the dedicated power supply 161 to the power packet mixer 21B is started.
  • the distribution management ECU 26B When the distribution management ECU 26B receives the power reception information from the power packet router 22B and detects normal termination of distribution by the power packet router 22B in S415 of FIG. 35, the distribution management ECU 26B proceeds to the process of S415B, and the distribution management ECU 26B On the other hand, power supply off control is performed. Thereby, the power supply from the dedicated power supply 161 to the power packet mixer 21B is completed. Other operations of the power distribution management ECU 26B are the same as the operations shown in FIG. Thereby, since the power packet mixer 21B is driven only when generating the power packet 30, it is possible to suppress a decrease in the amount of power stored in the dedicated power supply 161.
  • FIG. 36 shows the operation of the power distribution management ECU 26B for supplying power from the power sources 23-1 to 23-n to the input of the power packet mixer 21B shown in FIG. The operation of FIG. 36 will be described below.
  • the distribution management ECU 26B performs control so that power supply from the power sources 23-1 to 23-n is started to the input of the power packet mixer 21B when the remaining amount of power of the dedicated power source 161 decreases. Further, after confirming the power reception information from the power packet router 22B, the power supply stop to the power packet mixer 21B is controlled.
  • the process proceeds to the process of S432B of FIG. 36, and the power distribution management ECU 26B performs power supply on control for the power packet mixer 21B. To do. As a result, power supply from the power supplies 23-1 to 23-n to the power packet mixer 21B is started.
  • the distribution management ECU 26B receives power reception information from the power packet router 22B and the distribution management ECU 26B detects normal termination of distribution by the power packet router 22B in S439 of FIG. 36, the distribution management ECU 26B proceeds to the process of S439B, Power supply off control is performed on the packet mixer 21B. Thereby, the power supply from the power sources 23-1 to 23-n to the input of the power packet mixer 21B is completed.
  • Other operations of the power distribution management ECU 26B are the same as the operations shown in FIG. As a result, the power packet mixer 21B is driven when charging of the dedicated power source 161 becomes necessary, so that it is possible to suppress a decrease in the charged amount of the dedicated power source 161 and to prevent a shortage of the charged amount.
  • the power packet router 22B-2 outputs the power packet 30 output from the power packet router 22B-1 via the distribution line (power transmission path) 29D-1. Can be fed to the input. Further, the power packet 30 output from the power packet router 22B-3 can be supplied to the input of the power packet router 22B-2 via the distribution line (power transmission path) 29D-2. That is, even when the power packet mixer 21B cannot supply sufficient power, the accumulated power among the plurality of power packet routers 22B-1 to 22B-3 can be accommodated. As shown in FIG. 13, the power for accommodation may be stored in a power storage unit different from the power storage unit for normal power feeding, or power for normal power feeding and power for accommodation may be stored in one power storage unit. The electricity may be stored. The same applies to the other embodiments.
  • a more reliable power supply can be realized as a whole vehicle. For example, even when an upstream vehicle battery, a power packet mixer, or the like breaks down or a disconnection occurs in the upstream power distribution path, a plurality of power packet routers 22B-1 to 22B-3 are connected. Thus, it is possible to secure power supply power necessary for the operation of an important load.
  • FIG. 37 shows Example 1 of power interchange operation.
  • the operation shown in FIG. 37 can be realized, for example, as the operation of the power distribution management ECU 26B shown in FIG.
  • the operation of FIG. 37 can be realized as control of each of the power packet routers 22B-1 to 22B-3.
  • the power packet mixer 21B may perform this control.
  • step S511 of FIG. 37 the power distribution management ECU 26B grasps the stored power amount for each router based on the information received from each of the power packet routers 22B-1 to 22B-3.
  • step S512 of FIG. 37 the power distribution management ECU 26B performs control for equalizing the stored power amount based on the stored power amount for each router grasped in S511. That is, among the plurality of power packet routers 22B-1 to 22B-3, control is performed such that the power packet 30 is transmitted from the router with the large amount of stored power to the router with the small amount of stored power and the power is accommodated.
  • each of the power packet routers 22B-1 to 22B-3 can secure necessary power before the stored power amount is insufficient.
  • each of the loads 24-A to 24-C can be operated at any time.
  • Example 2 of power interchange operation is shown in FIG.
  • the operation shown in FIG. 38 can be realized, for example, as the operation of the power distribution management ECU 26B shown in FIG.
  • the operation of FIG. 38 can be realized as control of each of the power packet routers 22B-1 to 22B-3.
  • the power packet mixer 21B may perform this control.
  • step S521 of FIG. 38 the power distribution management ECU 26B grasps the stored power amount for each router based on the information received from each of the power packet routers 22B-1 to 22B-3.
  • step S522 of FIG. 38 the distribution management ECU 26B determines the priority between these routers according to the importance of the load (auxiliary machine) connected to each of the power packet routers 22B-1 to 22B-3. Determine high or low or priority.
  • step S523 of FIG. 38 for example, the power distribution management ECU 26B performs control for equalizing the stored power amount of the power packet routers 22B-1 to 22B-3.
  • the power distribution management ECU 26B performs control for equalizing the stored power amount of the power packet routers 22B-1 to 22B-3.
  • a large amount of power is accommodated from a router with a low priority order to a router to which an important load is connected.
  • the stored power amount of each router is equalized while considering that the stored power amount of the router with higher priority is higher than that of the router with lower priority. Turn into. In order to accommodate power, a router with a large amount of stored power sends the power packet 30 to another router.
  • the processing shown in FIG. 38 is repeated periodically, for example, to equalize the stored power amount of the plurality of power packet routers 22B-1 to 22B-3, and to store the routers to which particularly important loads are connected. Enough power can be secured. Therefore, it is possible to prevent a shortage of the stored power amount of routers connected to important loads among the power packet routers 22B-1 to 22B-3. That is, an important load (auxiliary machine) can be reliably operated at any time.
  • FIG. 39 An example of the operation of the router at the time of startup is shown in FIG. That is, for example, when each of the power packet routers 62-1 to 62-3 included in the power supply system 10-5 illustrated in FIG. 18 starts the operation illustrated in FIG. 39 (for example, the main power supply is turned on). The connection state of each output port 62b is automatically recognized. Note that the power packet mixer 61 can instruct the power packet routers 62-1 to 62-3 to execute the operation of FIG.
  • one or more dedicated ports and other general-purpose ports are included in the plurality of output ports 62b of each of the power packet routers 62-1 to 62-3. is doing.
  • the type of load auxiliary device such as electrical equipment
  • the general-purpose port can permit connection of a plurality of types of loads as necessary.
  • the power packet mixer 61 or each of the power packet routers 62-1 to 62-3 holds the tables TBP1 and TBP2 shown in FIG.
  • the table TBP1 is arranged on a predetermined non-volatile memory, and holds constant data representing the type of load connected to each dedicated port.
  • the table TBP2 is arranged on a memory in which data can be read and written, and as a result of automatic recognition by the power packet mixer 61 or each of the power packet routers 62-1 to 62-3, the latest connection state (connection of each output port 62b) And information indicating the type of connected load.
  • Each power packet router 62-1 to 62-3 inspects the state of each output port 62b in order at the time of system startup, and confirms the presence or absence of connection such as a load (S531). For example, the presence or absence of a load connection can be automatically identified by measuring the current and voltage flowing for each output port or measuring the impedance.
  • the process proceeds from S532 to S533, and the power packet routers 62-1 to 62-3 refer to the registered contents of the table TBP1. To do. Each of the power packet routers 62-1 to 62-3 recognizes that the type of load registered in the table TBP1 is connected to the dedicated port. Then, the recognition result is reflected in the table TBP2.
  • each of the power packet routers 62-1 to 62-3 determines parameters such as a current flowing through the general-purpose port. Is detected and compared with a plurality of predetermined threshold values to estimate and identify the type of load connected to the general-purpose port.
  • Each of the power packet routers 62-1 to 62-3 reflects the data indicating the type of load specified for each general-purpose port in the table TBP2.
  • the power packet transmission system As described above, when the PoE technology is used when power supply to the vehicle auxiliary equipment is considered, it is difficult to drive the load due to power shortage. Therefore, it is supported by the power packet transmission system. That is, for example, the power transmission system having the basic configuration as shown in FIG. 11 is used to realize efficient power transmission. The configuration of the power packet to be transmitted is the same as that shown in FIG. 4, for example.
  • the path with the lowest loss is used based on the efficiency information held by the power distribution management ECU 26B.
  • the power distribution management ECU 26B, the power packet mixer 21B, or each power packet router 22B-1, 22B-2, 22B-3 automatically controls.
  • the distribution management ECU 26B performs connection in consideration of load fluctuations. Thereby, power shortage when load power increases can be prevented.
  • FIG. 41 An example of the configuration and operation of the power supply system is shown in FIG. Note that the power supply system illustrated in FIG. 41 represents a configuration corresponding to a part of the power supply system illustrated in FIG. 11, for example. Therefore, the power distribution management ECU 26B of FIG. 11 can also be used.
  • a plurality of power packet routers 402 and 403 are connected to the downstream side of the power packet mixer 401 via distribution lines 421 and 422. In the configuration shown in FIG.
  • the power packet routers 402 and 403 are connected by a distribution line 423.
  • loads 411 and 412 are connected to the downstream side of the power packet router 402 via distribution lines 424 and 425.
  • Loads 413 and 414 are connected to the downstream side of the power packet router 403 via distribution lines 426 and 427.
  • the load 411 corresponds to an auxiliary machine such as a motor whose load power fluctuates within a range of 0 to 100 [W], for example.
  • the loads 412, 413, and 414 it is assumed that the respective load powers are constant at 50, 200, and 200 [W].
  • the power packet router 402 maintains a highly efficient state in accordance with an instruction from the distribution management ECU 26B or based on information acquired from the distribution management ECU 26B.
  • Control 441 can be performed as described. That is, in the example of FIG. 41, since the power packet router 402 is efficient in the range of 150 to 250 [W], the power supply state is controlled to maintain this range.
  • the power packet router 402 supplies power of 0 to 100 [W] and 50 [W] to the loads 411 and 412 respectively. Further, the power packet router 402 supplies 100 [W] of power to the power packet router 403. Therefore, the power handled by the power packet router 402 is maintained within the range of 150 to 250 [W].
  • the power packet router 403 supplies the loads 413 and 414 with a total of 400 [W] of 300 [W] transmitted from the power packet mixer 401 and 100 [W] transmitted from the power packet router 402. Can do. Therefore, each of the loads 413 and 414 can consume the necessary power 200 [W].
  • FIG. 42 An example of the configuration and operation of the power supply system is shown in FIG. Note that the power supply system illustrated in FIG. 42 represents a configuration corresponding to a part of the power supply system illustrated in FIG. 11, for example. Therefore, the power distribution management ECU 26B of FIG. 11 can also be used. Further, in the configuration shown in FIG. 42, a distribution line 428 for supplying power from the output of the power packet router 402 to the load 413 is added. The other configuration is the same as that of FIG.
  • the power packet router 402 or 403 can implement a special control 442.
  • the two distribution lines 428 and 426 are connected to the input of the load 413, power can be supplied from the output of the power packet router 402 to the load 413 via the distribution line 428, or the power packet router It is also possible to supply power to the load 413 via the distribution line 426 from the output of 403. Furthermore, power can be simultaneously supplied from the plurality of power packet routers 402 and 403 to the load 413. This makes it possible to adjust the power of each router and use an efficient place.
  • FIG. 43 An example of the configuration and operation of the power supply system is shown in FIG. Note that the power supply system illustrated in FIG. 43 represents a configuration corresponding to a part of the power supply system illustrated in FIG. 11, for example. Therefore, the power distribution management ECU 26B of FIG. 11 can also be used.
  • the efficiency peak (best point) of the power packet mixer 401 is 500 [W].
  • the power supplied to the downstream side of the power packet mixer 401 is 600 [W]
  • the efficiency of the power packet mixer 401 is lower than the peak. Therefore, the power packet mixer 401 lowers 100 [W] from 600 [W] by the control 431 and supplies 500 [W] to the downstream side. Thereby, the efficiency of the power packet mixer 401 can be maintained near the peak.
  • the power packet mixer 401 supplies 300 [W] of power to the power packet router 403 via the distribution line 422 as shown in FIG.
  • the power packet router 403 is 400 in total. It is necessary to supply [W] power to the output side. That is, the power of 300 [W] supplied from the power packet mixer 401 to the power packet router 403 is insufficient by 100 [W] compared to the power 400 [W] output from the power packet router 403.
  • the power packet router 403 uses, as the control 432, the insufficient power of 100 [W] by using the power stored in the power storage unit (buffer: 15A, 15B in FIG. 1 for example) in the power packet router 403. To control the shortage.
  • the input / output power of the mixer and the router is adjusted by using the power of the power storage unit existing in the power packet router 403 and the like, while maintaining a highly efficient state. Keep using with load power.
  • the power packet router 403 transmits a power distribution request to the power distribution management ECU 26B. Thereby, driving of the load can be continued.
  • FIG. 44 An operation example of the power distribution management ECU 26B is shown in FIG.
  • the power distribution management ECU 26B when the power supply path is controlled with the highest priority given to the efficiency of each part of the power supply system, the current flows intensively only in some efficient paths and allowed in some paths. The current may be exceeded.
  • the control shown in FIG. 44 by the power distribution management ECU 26B, it is possible to suppress the current from being concentrated only on a part of the paths. The control of FIG. 44 will be described below.
  • the distribution management ECU 26B When the distribution management ECU 26B receives a distribution request to each load from the power packet routers 402, 403, etc. in S601, the current allowance of each harness (distribution lines 421 to 427), each router, and mixer is calculated in S602. . Then, the power distribution management ECU 26B compares each current allowable amount with the requested current in S603.
  • the power distribution management ECU 26B calculates the most efficient route and supplies the requested power using the route (S610). If there is a place where the current allowable amount is expected to be exceeded, the process proceeds from S604 to S605.
  • step S605 the power distribution management ECU 26B confirms whether or not there is no part that is expected to exceed the current allowable amount when determining the power distribution path in consideration of the “load priority”. Then, if there are no more places where the current allowable amount is expected to be exceeded, the process proceeds to S606, and if there are no places where the current allowable amount is expected to be exceeded, the process proceeds to S611.
  • load priority is determined so as to give priority to a load through which a large current constantly flows. Further, for a load whose current greatly fluctuates, such as a load that operates intermittently (for example, a wiper motor), the current decreases when the intermittent operation is stopped, so that the priority is determined to be low.
  • step S606 the power distribution management ECU 26B takes into consideration the “load priority” in response to the power distribution request in S601, and uses an algorithm different from S610 so as to maintain an efficient state of each unit.
  • the right power distribution route That is, the power distribution path is determined so that the current supplied to the load through which a large current flows constantly passes through an efficient path. Further, the path of the current supplied to the fluctuating load is determined without giving importance to efficiency. As a result, it is possible to flow the maximum current through an efficient path.
  • step S611 the power distribution management ECU 26B determines the current path using the same algorithm as in S610, but excludes the portion that is expected to exceed the current allowable amount from the selection of the high-efficiency path and increases the efficiency. Assign a route that is not important.
  • the power distribution management ECU 26B calculates the current allowable amount of each part of the determined path (S607), and the current value for each path to be transmitted is the current permission. After confirming in S608 that the capacity is not exceeded, a power transmission instruction is given to each power packet router 402, 403 and power packet mixer 401 (S609).
  • Resistance loss of copper wire is proportional to length and cross-sectional area. Therefore, as a result of the control in consideration of the efficiency of the power distribution path, the loss can be reduced by half if the wire harness can be switched to a wire harness whose cross-sectional area is twice as large or whose path length is half.
  • the efficiency as shown in FIG. 41 is likely to vary. However, by adopting the above-described control different from PoE, it is possible to perform highly efficient power supply in consideration of load fluctuations.
  • a power packet generator (61, 111) that generates a power packet based on power supplied from one or more power supply sources (63, 113);
  • a power packet router (62-1 to 62-3, 112) that receives the power packet via a transmission line and supplies the power of the power packet to a plurality of loads connected downstream;
  • a power request sending unit (62-1 to 62-3, 116) for sending a distribution request according to the power required by the power packet router;
  • a power supply control unit (61, 116) that provides the power packet according to the power distribution request from the power packet generation unit to the power packet router;
  • An assigning unit (62-1 to 62-3, 116) for assigning priorities to the plurality of loads, The power supply control unit restricts power supply to a load having a low priority when the relationship between power demand and supply satisfies a predetermined condition; Power supply system.
  • the power supply control unit compares a supply power amount that can be supplied by the power supply source with a demand power amount represented by the power distribution request, and when the demand power amount is larger than the supply power amount. Stops supplying the power supplied to the low priority load, The power supply system according to [1] above.
  • the allocation unit (116) corrects the priority order according to at least one of a traveling state of a vehicle on which the power supply system is mounted, a passenger's state, and an environment outside the vehicle.
  • the power supply system according to [1] or [2].
  • a power packet generator (power packet mixer 11) that generates a power packet based on power supplied from one or more power supply sources (vehicle batteries 13A and 13B);
  • a power packet router (12) that receives the power packet generated by the power packet generator via a transmission line and supplies the power of the power packet to one or more loads on the downstream side;
  • a power distribution control unit (distribution management ECUs 26, 26B) that receives a power distribution request (27A) including the required power amount from the power packet router and transmits a power transmission instruction (28A) including the power amount to the power packet generation unit.
  • the power packet generation unit transmits power transmission information (28B) including the amount of power of the power packet transmitted to the power packet router to the power distribution control unit
  • the power packet router transmits power reception information (27B) including the amount of power of the power packet received from the power packet generation unit to the power distribution control unit
  • the power distribution control unit diagnoses the state of the transmission path based on a result of comparing the amount of power included in the power transmission information with the amount of power included in the power reception information (S55 to S57), Power supply system.
  • the power packet router includes a power storage unit (15A, 15B) that temporarily stores the power packet received from the power packet generation unit, and the amount of power included in the power reception information is stored in the power storage unit. Represents the amount of power stored, The power supply system according to the above [4] or [5].
  • the transmission path includes at least a first transmission path (29A-1) and a second transmission path (29A-2, 29D-1) connected in parallel,
  • the power transmission instruction includes a transmission path for transmitting the power packet,
  • the power transmission instruction includes the transmission line included in the power transmission instruction.
  • a power packet generator (power packet mixers 11 and 21B) that receives power from one or more power supply sources (vehicle batteries 13A and 13B) in response to a power distribution request and generates a power packet;
  • a power packet router (12, 22B-1 to 3) that receives the power packet via a transmission line and supplies power contained in the power packet to one or more downstream loads;
  • a distribution request generation unit (distribution management ECU 26B, control unit 45) that generates the distribution request including the amount of power required by the power packet router and transmits the generated distribution request to the power packet generation unit;
  • a power transmission waveform information generation unit that generates power transmission waveform information (power transmission information 28B, header 31D) of the power packet transmitted by the power packet generation unit toward the power packet router;
  • a power receiving waveform information generating unit that generates power receiving waveform information (power receiving information 27B, header 31D) of the power packet received by the power packet router;
  • a state diagnosis unit (distribution management ECU 26B, header separation analysis unit
  • the power packet includes a header portion including a diagnostic signal (diagnostic pulse 31Da) used for detecting an abnormality in the transmission path, and a payload portion (30) for transmitting power,
  • the power transmission waveform information and the power reception waveform information are information related to the waveform of the diagnostic signal.
  • the state diagnosis unit recognizes that an abnormality has occurred in the transmission path when the received waveform information is not received within a predetermined time after receiving the transmitted waveform information (S53) (S54, S57), The power supply system according to [8] or [9].
  • the transmission path includes at least a first transmission path (29A-1) and a second transmission path (29A-2, 29D-1) connected in parallel,
  • the power distribution request includes a transmission path for transmitting the power packet,
  • the power distribution request generation unit recognizes that one of the first transmission path and the second transmission path is abnormal, the power distribution request generation unit converts the transmission path included in the power distribution request to the first transmission path.
  • Switching to the other of one transmission path and the second transmission path (S77) The power supply system according to any one of [8] to [10].
  • a power packet generator (power packet mixers 11, 81) that generates a power packet based on power supplied from one or more power supply sources (on-vehicle batteries 23-1 to 23-n, 83); A first power packet router (22B-1 to 3, 82-1 to 4) that supplies power of the power packet received from the power packet generator via a transmission path to one or more downstream loads; A second power packet router (22B-1 to 3, 82-1 to 4), A mutual supply path (29D-1 to 2, 85-3 to 6) for connecting the first power packet router and the second power packet router, Each of the first power packet router and the second power packet router is: A power distribution request sending unit that transmits a power distribution request including the required amount of power to the power packet generating unit; A power storage unit (normal power storage unit 42A, flexible power storage unit 42B) for storing the power of the power packet, The power distribution request sending unit of one of the first power packet router and the second power packet router can transmit an accommodation request signal for requesting the other to accommodate power, The other of the first power packet router and
  • the power storage unit includes a first power storage unit (normal power storage unit 42A) that stores power to be supplied to the load, and a second power storage unit (flexible power storage unit 42B) that stores power used for accommodation. And When the other of the first power packet router and the second power packet router receives the accommodation request signal, the other generates a power packet used for accommodation based on the power stored in the second power storage unit. , The power supply system according to [12] above.
  • a diagnosis unit (distribution management ECU 26B, control unit 45B) for diagnosing whether or not an abnormality has occurred in the transmission path is provided.
  • the one of the distribution request sending units transmits the accommodation request signal to the other when the diagnosis unit detects that an abnormality has occurred in the transmission path.
  • the power supply system according to [12] or [13].
  • a power packet generator (power packet mixer 51) that generates a power packet based on power supplied from one or more power supply sources (batteries 53-1, 53-2);
  • the power packet generated by the power packet generator is received via a transmission path (power transmission path 55A), and the power of the power packet is supplied to one or more loads (54-1 to 54-6) on the downstream side.
  • Power packet routers (52-1, 52-2) to A power request sending unit (control unit 45, S98) for sending a power distribution request according to the power required by the power packet router;
  • a power supply control unit (power packet mixer 51, power distribution management ECU 56) for sending the power packet from the power packet generator to the power packet router in response to the power distribution request;
  • the power packet router A plurality of downstream ports (power output port 52b) to which at least the load can be connected;
  • a connection state detection unit (control unit 45, S95 to S96) that automatically detects a connection state of each of the plurality of downstream ports when a predetermined condition is satisfied;
  • a connection state transmission unit (communication interface unit 46) that transmits information representing the connection state to the power supply control unit;
  • the power supply control unit reflects the connection state in the transmission of the power packet (S103), Power supply system.
  • the power supply control unit includes an input unit (input device 57, switches 58) for a user to input a load attribute, and the power packet is based on the received information indicating the connection state. If it is determined that a new load is connected to the router, the input unit is allowed to input the attribute of the new load (S99 to S100).
  • the power supply system according to [1] above.
  • the power supply control unit constitutes a part of the power packet generation unit,
  • the connection state detection unit transmits information representing the connection state to the power supply control unit via the transmission path.
  • the power supply system according to [15] or [16].
  • connection state detection unit transmits information representing the connection state to the power supply control unit via wireless communication.
  • the power supply system according to [15] or [16].
  • a plurality of power packet generators that generate power packets based on the power supplied from the power supply sources (vehicle batteries 133-1 and 133-2) and send them to the transmission path (power transmission path 138) Mixers 131-1, 131-2), A plurality of power packet routers (132-1 to 132-4) for receiving the power packet via the transmission path and supplying the power of the power packet to one or more downstream loads;
  • a power distribution control unit (distribution management ECU 136) that receives a power distribution request including the required power amount from the power packet router and transmits a power transmission instruction including the power amount to the power packet generation unit;
  • the power distribution control unit generates a packet transmission frame having a plurality of time slots, associates the plurality of power packet generation units with each of the plurality of time slots, Each of the power packet generators transmits the power packet in an associated time slot. Power supply system.
  • the transmission line forms a ring-shaped transmission line
  • the power packet generator and the power packet router are respectively connected to predetermined locations of the ring transmission line
  • the power distribution control unit stores correspondence information indicating correspondence between the time slot and the power packet router at the head of the packet transmission frame
  • the power packet generator recognizes the transmission timing of the power packet based on the correspondence information;
  • the power supply system according to [19] above.
  • the plurality of power packet routers include a first power packet router and a second power packet router, Each of the first power packet router and the second power packet router has a power storage unit that stores power received as a power packet, The power stored in the power storage unit of the first power packet router can be accommodated in the power storage unit of the second power packet router, The power distribution control unit associates the first power packet router with one of the time slots.
  • the power supply system according to [20] above.
  • a power packet generator (power packet mixer 121) that generates a power packet based on power supplied from one or more power supply sources;
  • a power distribution control unit (distribution management ECU 126) that receives a power distribution request including the required power amount from the power packet router and transmits a power distribution instruction including the power amount to the power packet generation unit;
  • the plurality of power packet routers include an upstream power packet router (122-1) located on the upstream side and a downstream power packet router (122-3) connected to the downstream side of the upstream power packet router. Including When the power packet generator receives the power distribution instruction for the upstream power packet router and the downstream power packet router, the power packet generator supplies power to the upstream power packet router and the downstream power packet router. Power to be included in the same power packet, Power supply system.
  • the upstream power packet router has power storage units (15A, 15B) for storing power and receives the power packet whose destination is the upstream power packet router and the downstream power packet router Includes storing the power of the power packet in the power storage unit, generating a new power packet including power to be supplied to the downstream power packet router out of the power stored in the power storage unit, and generating the downstream power Send to packet router,
  • the power supply system according to [22] above.
  • the power packet includes a header portion including information indicating a destination, and a payload portion for transmitting power
  • the power packet generation unit includes information indicating that the destination is the upstream power packet router and the downstream power packet router in the header unit, and includes the upstream power packet router and the downstream power packet router.
  • the total power to be supplied is included in the payload part.
  • a power packet generator (power packet mixer 71) that generates a power packet based on the power supplied from the power supply source;
  • a power packet router (72-1) that receives the power packet generated by the power packet generator via a transmission path (power transmission path 75-1) and supplies the power of the power packet to a downstream load;
  • a power distribution control unit (distribution management ECU 26) that receives a power distribution request including the required power amount from the power packet router and transmits a power transmission instruction including the power amount to the power packet generation unit;
  • the power packet generator has a function (72-2) for receiving a power packet and supplying power of the power packet to a load. Power supply system.
  • the power packet router has a function (72B-2) for receiving power and generating the power packet.
  • the power supply system according to [25] above.
  • a power packet generator (power packet mixer 11) that generates a power packet based on power supplied from one or more power supply sources (vehicle batteries 13A and 13B);
  • a power packet router (12) that receives the power packet generated by the power packet generator via a transmission path (power transmission path 16A) and supplies the power of the power packet to one or more loads on the downstream side;
  • a power request sending part (12f) for sending a power distribution request according to the power required by the power packet router from the power packet router;
  • a power supply control unit (11d) for supplying the power packet according to the transmitted power distribution request from the power packet generation unit to the power packet router,
  • the power packet router has a power storage unit (15A, 15B) for storing the power of the received power packet,
  • the power request sending unit sends the power distribution request when the amount of power stored in the power storage unit falls below a predetermined threshold (S14, S15),
  • the power supply control unit determines whether or not to supply power based on a comparison between the amount of power requested
  • the power supply system is mounted on a vehicle,
  • the power supply source is a battery that stores electric power from the outside of the vehicle or from a power generation device,
  • the power supply control unit generates a power packet in the power packet generation unit according to a result of comparing the requested amount of power with the amount of power that can be supplied when the battery is charged.
  • the power packet generator is supplied with power from a plurality of the power supply sources,
  • the power packet router has at least the same number of the power storage units as the plurality of power supply sources.
  • the power supply system according to [27] or [28].
  • a power packet generator (power packet mixer 21) that generates power packets based on power supplied from a plurality of power supply sources (power supplies 23-1 to 23-n);
  • the power packet generated by the power packet generator is received via a transmission path (power transmission path 29A), and the power of the power packet is supplied to one or more loads (24-1 to 24-n) on the downstream side.
  • the power packet generation unit generates the power packet based on each of the power supplied from the plurality of power supply sources, and transmits the plurality of power packets to the power packet router by time division. Power supply system.
  • the power packet router includes a plurality of power storage units (15A, 15B) capable of storing the power packets received from the power packet generation unit for each of the plurality of power supply sources.
  • the power supply system according to [30] above.
  • the power packet includes a header part (31) including destination information (31b) indicating a load to which power is to be supplied, and a payload part (32) for transmitting power,
  • the power packet router stores the power of the received power packet in any of the power storage units according to the destination information.
  • the power supply system according to [31] above.
  • a power packet generator (power packet mixer 323) that generates a power packet based on power supplied from one or more power supply sources (batteries 321, 322);
  • a power packet router (327) that receives the power packet generated by the power packet generator via a transmission path (power transmission path 326) and supplies the power of the power packet to a downstream load;
  • the load includes a flashable light emitting unit (side turn signal lamps 328 and 329),
  • the power packet generator is connected to an input unit (column switch 302, hazard switch 303) for a user to input a blinking light emission instruction to the light emitting unit, When the instruction is input from the input unit, the power packet generation unit intermittently transmits power to the power packet router using the power packet, The power packet router distributes the power of the received power packet to the light emitting unit. Power supply system.
  • the load further includes a continuous power supply load (load 330) to which power should be continuously supplied
  • the power packet router has a power storage unit (15A, 15B) for temporarily storing the power packet received from the power packet generation unit
  • the power packet generator attaches destination information indicating whether the destination of the power packet is the light emitting unit or the continuous power supply load as a header (31) of the power packet
  • the power packet router refers to a header of the received power packet, and stores the power in the power storage unit when the destination is the continuous power supply load, and stores the power storage unit when the destination is the light emitting unit. Distribute electricity to the light emitting part without storing electricity in The power supply system according to [33] above.
  • a power packet generator (power packet mixer 21B) that generates power packets based on the power supplied from the power supply sources (power supplies 23-1 to n);
  • a power packet router (22B-1, 22B-2, and 22B-3) that receives the power packet generated by the power packet generator via a transmission line and supplies the power of the power packet to a downstream load;
  • a distribution control unit (distribution management ECU 26B) that receives a power distribution request including the required power amount from the power packet router and transmits a power transmission instruction including the power amount to the power packet generation unit;
  • a driving power source (dedicated power source 161) connected to the power packet generation unit and the power packet router via a distribution line (162), and supplying driving power for the power packet generation unit and the power packet router; Comprising a power supply system.
  • the driving power source is charged with electric power generated based on at least one of vibration energy, thermal energy, and light energy.
  • the power supply system according to [35] above.
  • the power distribution control unit when the amount of power stored in the driving power source falls below a predetermined threshold value, from the power packet generating unit via the another transmission path, the driving power source To supply power,
  • the power supply system according to [35] or [36].
  • the power distribution control unit further has a function of controlling the supply of drive power from the drive power supply to the power packet generation unit, and the power packet generation unit following the start of the supply of drive power (S418, S418B), the supply of the driving power is stopped following the end of transmission of the power packet (S415, S415B),
  • the power supply system according to any one of [35] to [37].
  • a power packet generator (power packet mixer 401) that generates a power packet based on the power supplied from the power supply source;
  • a plurality of power packet routers (power packet routers 402 and 403) that receive the power packet generated by the power packet generator via a transmission line and supply the power of the power packet to one or more loads on the downstream side;
  • a power distribution control unit (distribution management ECU 26B) that receives a power distribution request including the required power amount from the power packet router and transmits a power distribution instruction including the power amount to the power packet generation unit,
  • the power distribution control unit Efficiency information indicating at least one of transmission efficiency of each transmission path, efficiency of the power packet generation unit with respect to load power, and efficiency with respect to load power of the power packet router, power consumption of each load, and the consumption
  • a storage unit for storing load power information representing a power fluctuation range;
  • a path setting unit (distribution management ECU 26B) configured to set a power supply path from the power packet generation unit to the load via the power packet router
  • the path setting unit transmits power to the load with a small fluctuation in power to be supplied.
  • the power supply system according to [39] or [40].
  • the power packet router includes a power storage unit (15A, 15B) that stores the power of the received power packet.
  • a power storage unit (15A, 15B) that stores the power of the received power packet.
  • Japanese patent applications filed on March 22, 2017 Japanese Patent Application 2017-056002
  • Japanese patent applications filed on November 30, 2017 Japanese Patent Application 2017-231241
  • applications filed on November 30, 2017 Japanese patent application filed on November 30, 2017
  • Japanese patent application filed on November 30, 2017 Japanese patent application filed on November 30, 2017
  • Japanese patent application filed on November 30, 2017 Japanese patent application filed on November 30, 2017
  • Japanese patent application filed on November 30, 2017 Japanese patent application filed on November 30, 2017
  • Japanese patent application filed on November 30, 2017 Japanese patent application filed on November 30, 2017
  • Japanese Patent Application 2017-231246 Japanese patent application filed on November 30, 2017 (Japanese Patent Application) Application No.
  • the present invention it is possible to avoid wasteful discharge of electric power from a vehicle-mounted battery or the like, and to keep a balance between power demand and supply capability in an appropriate state even when the load increases. There is an effect that can be done.
  • the present invention that exhibits this effect is useful for a power supply system that can be used to supply power on a vehicle or the like.

Abstract

L'invention porte sur un système d'alimentation électrique qui comprend : une unité de commande d'alimentation électrique (61, 116) pour fournir un paquet d'alimentation d'un mélangeur de paquets d'alimentation (61) à des routeurs de paquets d'alimentation (62-1 à 62-3) en réponse à une requête de distribution d'énergie provenant des routeurs de paquets d'alimentation (62-1 à 62-3) ; et une unité d'allocation (62-1 à 62-3, 116) pour allouer des priorités à une pluralité de charges. L'unité de commande d'alimentation électrique limite l'alimentation électrique à une charge ayant une basse priorité lorsque la relation entre l'offre et la demande d'énergie satisfait une condition prédéterminée.
PCT/JP2018/011545 2017-03-22 2018-03-22 Système d'alimentation électrique WO2018174208A1 (fr)

Priority Applications (3)

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CN201880013529.3A CN110366806A (zh) 2017-03-22 2018-03-22 供电系统
EP18770833.4A EP3605789A4 (fr) 2017-03-22 2018-03-22 Système d'alimentation électrique
US16/546,166 US20190366872A1 (en) 2017-03-22 2019-08-20 Vehicular power supply system

Applications Claiming Priority (28)

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JP2017056002 2017-03-22
JP2017-056002 2017-03-22
JP2017231247A JP6856512B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017231249A JP6856514B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231254 2017-11-30
JP2017231253A JP6856517B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231248 2017-11-30
JP2017-231242 2017-11-30
JP2017231245A JP6856510B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231247 2017-11-30
JP2017-231246 2017-11-30
JP2017-231244 2017-11-30
JP2017231252A JP6856516B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017231254A JP6856518B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017231242A JP6856507B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017231250A JP6856515B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231245 2017-11-30
JP2017231246A JP6856511B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231243 2017-11-30
JP2017231243A JP6856508B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231241 2017-11-30
JP2017-231249 2017-11-30
JP2017-231253 2017-11-30
JP2017231244A JP6856509B2 (ja) 2017-03-22 2017-11-30 車両の電力供給システム
JP2017231241A JP6856506B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231252 2017-11-30
JP2017231248A JP6856513B2 (ja) 2017-03-22 2017-11-30 電力供給システム
JP2017-231250 2017-11-30

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