WO2019188073A1 - Dispositif de commande, procédé de commande et programme informatique - Google Patents

Dispositif de commande, procédé de commande et programme informatique Download PDF

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Publication number
WO2019188073A1
WO2019188073A1 PCT/JP2019/008927 JP2019008927W WO2019188073A1 WO 2019188073 A1 WO2019188073 A1 WO 2019188073A1 JP 2019008927 W JP2019008927 W JP 2019008927W WO 2019188073 A1 WO2019188073 A1 WO 2019188073A1
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WIPO (PCT)
Prior art keywords
control device
vehicle
battery
condition
power
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PCT/JP2019/008927
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English (en)
Japanese (ja)
Inventor
中野　貴之
Original Assignee
住友電気工業株式会社
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Priority to JP2020509775A priority Critical patent/JP7279707B2/ja
Publication of WO2019188073A1 publication Critical patent/WO2019188073A1/fr

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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
    • 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
    • B60R16/03—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 for supply of electrical power to vehicle subsystems or for
    • 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
    • B60R16/04—Arrangement of batteries

Definitions

  • the present invention relates to a control device, a control method, and a computer program.
  • This application claims priority based on Japanese Patent Application No. 2018-061482, filed on Mar. 28, 2018, and incorporates all the contents described in the above Japanese application.
  • ECUs Electronic Control Units
  • the types of ECUs include, for example, those related to the traveling system that controls the engine, brakes, EPS (Electric Power Steering), etc. for the operation of the accelerator, brake, and steering wheel.
  • body-type ECUs that control the turning on / off of lights and the sounding of alarm devices
  • meter-type ECUs that control the operation of meters arranged near the driver's seat.
  • the ECU is configured by an arithmetic processing device such as a microcomputer, and the control of the in-vehicle device is realized by reading and executing a control program stored in a ROM (Read Only Memory).
  • the ECU control program needs to be rewritten from the old version of the control program to the new version of the control program in accordance with the version upgrade. Further, it is necessary to rewrite data necessary for execution of the control program such as map information and control parameters.
  • Patent Document 1 discloses a technique (online update function) for downloading an update program via a network and updating an ECU control program.
  • the technique of Patent Literature 1 in order to prevent the operation of the vehicle device during the update of the control program in the ECU, the vehicle is stopped and the update is executed in a state where the user gets off the vehicle.
  • a control device includes an in-vehicle communication unit capable of communicating with an in-vehicle control device, and a control unit that controls the in-vehicle communication unit, and the control unit supplies power to the in-vehicle control device. Based on the soundness level of the battery and the state of power supplied by the generator capable of supplying power to the in-vehicle control device, a request for execution of control program update processing for the in-vehicle control device is transmitted to the in-vehicle communication unit. A determination process is performed to determine whether or not.
  • a control method is a method of instructing an in-vehicle control device to execute a control program update process, and an index value of a soundness level of a battery that supplies power to the in-vehicle control device.
  • the step of calculating the step of obtaining power information indicating the state of power supplied by a generator capable of supplying power to the vehicle-mounted control device, and the index value and the power information, to the vehicle-mounted control device Executing a determination process for determining whether or not to request execution of the update process.
  • a computer program is a program for causing a computer to function as a control device that instructs the in-vehicle control device to execute control program update processing, and the control device includes the in-vehicle control device.
  • a communication unit capable of communicating with the computer, based on the soundness level of the battery that supplies power to the in-vehicle control device, and the state of power supplied by a generator that can supply power to the in-vehicle control device,
  • the control unit is configured to function as a control unit that executes a determination process for determining whether or not to cause the communication unit to transmit a request for execution of a control program update process to the in-vehicle control device.
  • a control device includes an in-vehicle communication unit capable of communicating with an in-vehicle control device, and a control unit that controls the in-vehicle communication unit, and the control unit supplies power to the in-vehicle control device.
  • the present disclosure can be realized as a control device including such a characteristic control unit, a control method using such characteristic processing as a step, and a program for causing a computer to execute the step. Moreover, it can implement
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. 2011-121396 (Patent Document 1) or Japanese Unexamined Patent Application Publication No. 2013-084143 (Patent Document 2) confirms that the power necessary for the update process is stored in the battery. Discloses a technique for executing update processing.
  • the control device includes an in-vehicle communication unit capable of communicating with the in-vehicle control device, and a control unit that controls the in-vehicle communication unit, and the control unit supplies power to the in-vehicle control device.
  • a request for execution of control program update processing for the in-vehicle control device is transmitted to the in-vehicle communication unit
  • a determination process for determining whether or not to execute is executed.
  • the determination process may include determining whether at least one of the following first condition and second condition is satisfied.
  • First condition The soundness level of the battery is higher than the reference soundness degree.
  • Second condition The generator is in a power generation state.
  • Update processing can be executed.
  • the update process can be executed by the power supplied from the generator.
  • the determination process may include determining whether or not at least one of the following first condition and second condition is satisfied.
  • First condition The soundness level of the battery is higher than the standard soundness level.
  • Second condition The power generation amount of the generator is larger than the power consumption amount in the vehicle.
  • the in-vehicle control device update process can be executed by the electric power.
  • the update process can be executed by the power supplied from the generator.
  • the control unit transmits the request to the in-vehicle communication unit when the determination process does not satisfy the first condition and the second condition. You don't have to.
  • the onboard control device does not request execution of the update process, so that the power required for the update process is insufficient due to battery deterioration during the update process, and the update process continues. The situation where it becomes impossible can be avoided.
  • the determination process determines again whether the second condition is satisfied when the first condition and the second condition are not satisfied. You may include that. Thereby, execution of the update process is suspended until the second condition is satisfied, but if the second condition is satisfied when the engine is started by a starter, a generator with a motor function, or the like during idling stop when the vehicle is stopped, Update processing can be executed.
  • the control unit issues a notification screen display instruction to the in-vehicle control device that controls the display device when the first condition and the second condition are not satisfied.
  • the notification screen may be a screen for notifying that the update process is not executed, which is transmitted to the in-vehicle communication unit.
  • a notification screen is displayed on the display device. Therefore, the user can know that it is necessary to operate the engine and cause the generator to generate power in order to start the update process.
  • a user who prioritizes execution of the update process can start the update process by operating the engine for power supply. Thereby, a user's convenience can be improved.
  • the control unit when the second condition is satisfied, after the transmission of the update process request, the generator for the in-vehicle control device that controls the generator A request for maintaining the power generation state may be transmitted to the in-vehicle communication unit.
  • the generator maintains the power generation state during the update process. Therefore, when the soundness level of the battery is low, the update process can be continued using the power from the generator.
  • the determination process acquires and acquires at least one of the voltage value and the current value of the battery from an in-vehicle control device that controls the battery. It may include calculating an index value of the degree of health of the battery using the value and comparing the index value with a threshold value. Thereby, it can be determined with high accuracy whether or not there is a possibility that the update process cannot be performed due to deterioration of the battery.
  • the control method according to the present embodiment is (a method for instructing the in-vehicle control device to execute a control program update process, and an index value of the degree of soundness of the battery that supplies power to the in-vehicle control device A step of obtaining power information indicating a state of power supplied by a generator capable of supplying power to the vehicle-mounted control device, and using the index value and the power information, the vehicle-mounted control device. And executing a determination process for determining whether or not to request execution of the update process. Thereby, the shortage of power supply due to the deterioration of the battery during the update process of the control program in the in-vehicle control device can be suppressed.
  • the computer program according to the present embodiment is a program for causing a computer to function as a control device that instructs the in-vehicle control device to execute control program update processing, and the control device is the in-vehicle control device.
  • a communication unit capable of communicating with the computer, based on the soundness level of the battery that supplies power to the in-vehicle control device, and the state of power supplied by a generator that can supply power to the in-vehicle control device,
  • the control unit is configured to function as a control unit that executes a determination process for determining whether or not to cause the communication unit to transmit a request for execution of a control program update process to the in-vehicle control device.
  • the control device includes an in-vehicle communication unit that can communicate with the in-vehicle control device, and a control unit that controls the in-vehicle communication unit, and the control unit supplies power to the in-vehicle control device.
  • Whether to send a request for control program update processing for the in-vehicle control device to the in-vehicle communication unit based on the soundness level of the battery to be operated and the operating state of the generator capable of supplying power to the in-vehicle control device Judgment is made. Thereby, the shortage of power supply due to the deterioration of the battery during the update process of the control program in the in-vehicle control device can be suppressed.
  • FIG. 1 is a schematic diagram illustrating a configuration of a vehicle according to the first embodiment.
  • a vehicle 1 according to the present embodiment includes an in-vehicle communication device 15 for communicating with an external device, a plurality of ECUs (Electronic Control Units) 30A, 30B,..., An external device and a plurality of ECUs 30A. , 30B,..., And relay device 10 that is an ECU that relays communication with.
  • Each ECU 30 is connected by an in-vehicle communication line 16 that terminates in the relay device 10 and constitutes an in-vehicle communication network 4 together with the relay device 10.
  • the communication network 4 includes a bus type communication network (for example, CAN (Controller Area Network)) that enables communication between the ECUs 30.
  • CAN Controller Area Network
  • information is stored in a format called a data frame and transmitted / received.
  • the communication network 4 is not limited to CAN, but includes communication standards such as LIN (Local Interconnect Network), CANFD (CAN with Flexible Data Rate), Ethernet (registered trademark), or MOST (Media Oriented Systems Transport: MOST is a registered trademark). It may be a network to be adopted.
  • LIN Local Interconnect Network
  • CANFD CAN with Flexible Data Rate
  • Ethernet registered trademark
  • MOST Media Oriented Systems Transport: MOST is a registered trademark
  • the ECU 30 is, for example, a power train ECU that controls the engine, brakes, EPS (Electric Power Steering), etc. in response to accelerator, brake, and steering wheel operations, and lighting / extinguishing of interior lighting and headlights according to switch operations. And a body system ECU that controls the alarm and the like, and a meter system ECU that controls the operation of meters provided near the driver's seat.
  • EPS Electrical Power Steering
  • the relay device 10 is further connected to the in-vehicle communication device 15 via a communication line of a predetermined standard.
  • the relay device 10 may be equipped with the in-vehicle communication device 15.
  • the in-vehicle communication device 15 wirelessly communicates with an external device via the wide area communication network 2 such as the Internet.
  • the vehicle exterior device is, for example, the server 5 that stores an update program for the ECU 30.
  • the in-vehicle communication device 15 may have a plug (not shown) and communicate with an external device connected to the plug by wire.
  • the in-vehicle communication device 15 may be a device owned by the user, such as a mobile phone, a smartphone, a tablet terminal, or a notebook computer (Personal Computer).
  • the relay device 10 relays information received by the in-vehicle communication device 15 from the outside device to the ECU 30. Further, the relay device 10 relays information received from the ECU 30 to the in-vehicle communication device 15. The in-vehicle communication device 15 wirelessly transmits the relayed information to the external device.
  • FIG. 2 is a schematic diagram illustrating an example of a power supply configuration of the vehicle 1.
  • the power line 17 is indicated by a thick line to distinguish it from the in-vehicle communication line 16.
  • vehicle 1 includes a generator 21 and a battery 22 as a power source.
  • the generator 21 is a generator that generates electricity according to the driving of the engine, and is, for example, an alternator.
  • the battery 22 is generally a lead storage battery. In addition, a combination thereof such as a lithium ion battery or a nickel metal hydride battery may be used.
  • Vehicle generators such as the relay device 10, the ECUs 30 ⁇ / b> A, 30 ⁇ / b> B, 30 ⁇ / b> C, and the starter 23 are connected to the generator 21 and the battery 22 via the power line 17, and the generator 21 and the battery 22 are connected to these generators via the power line 17. It is possible to supply power to the device. Moreover, the electric power generated by the generator 21 may be supplied to the battery 22 via the power line 17 and stored.
  • a high voltage unit 25 is further connected to the battery 22 via the DC / DC converter 24, and the electric power from the battery 22 is boosted by the DC / DC converter 24 to increase the voltage. Supplied to the unit 25.
  • FIG. 3 is a block diagram illustrating an internal configuration of the relay apparatus 10.
  • relay device 10 includes a control unit 11, a storage unit 12, an in-vehicle communication unit 13, a sensor interface (I / F) 14, and the like.
  • the control unit 11 of the relay apparatus 10 includes a CPU (Central Processing Unit).
  • the CPU of the control unit 11 includes one or a plurality of large scale integrated circuits (LSIs). In a CPU including a plurality of LSIs, the plurality of LSIs cooperate to realize the function of the CPU.
  • the CPU of the control unit 11 can execute a plurality of programs in parallel by switching and executing a plurality of programs in a time division manner, for example.
  • the CPU of the control unit 11 has a function of reading one or more programs stored in the storage unit 12 and executing various processes.
  • the computer program executed by the CPU of the control unit 11 can be transferred while being recorded on a recording medium such as a CD-ROM or DVD-ROM, or can be transferred by downloading from a computer device such as a server computer. .
  • the storage unit 12 includes a non-volatile memory element such as flash memory or EEPROM (Electrically Erasable Programmable Read Only Memory).
  • the storage unit 12 has a storage area for storing a program executed by the CPU of the control unit 11 or data necessary for execution.
  • An in-vehicle communication line 16 is connected to the in-vehicle communication unit 13.
  • the in-vehicle communication unit 13 includes a communication device that communicates with the ECU 30 in accordance with a predetermined communication standard such as CAN.
  • the in-vehicle communication unit 13 transmits information given from the CPU of the control unit 11 to a predetermined ECU 30, and the ECU 30 gives information of the transmission source to the CPU of the control unit 11.
  • the in-vehicle communication device 15 is a wireless communication device including an antenna and a communication circuit that performs transmission and reception of wireless signals from the antenna.
  • the in-vehicle communication device 15 can communicate with an external device by being connected to a wide area communication network 2 such as a mobile phone network.
  • the in-vehicle communication device 15 transmits information given from the CPU of the control unit 11 to an external device such as the server 5 and the information received from the external device via the wide area communication network 2 formed by a base station (not shown). To the CPU of the control unit 11.
  • FIG. 4 is a block diagram showing an internal configuration of the ECU 30.
  • ECU 30 includes a control unit 31, a storage unit 32, an in-vehicle communication unit 33, and the like.
  • the control unit 31 of the ECU 30 includes a CPU.
  • the CPU of the control unit 31 has a function of reading one or more programs stored in the storage unit 32 and executing various processes.
  • the CPU of the control unit 31 includes a function for executing a control program update process.
  • the CPU of the control unit 31 can execute a plurality of programs in parallel by switching and executing a plurality of programs in a time division manner, for example.
  • the CPU of the control unit 31 includes one or a plurality of large scale integrated circuits (LSIs).
  • LSIs large scale integrated circuits
  • the plurality of LSIs cooperate to realize the function of the CPU.
  • the computer program executed by the CPU of the control unit 31 can be transferred while being recorded on a recording medium such as a CD-ROM or DVD-ROM, or can be transferred by downloading from a computer device such as a server computer. .
  • the storage unit 32 is composed of a nonvolatile memory element such as flash memory, EEPROM, or ROM.
  • the storage unit 32 has a storage area for storing a program executed by the CPU of the control unit 11 or data necessary for execution.
  • the storage unit 32 includes a first region 321 and a second region 322 as regions for storing computer programs executed by the CPU of the control unit 31.
  • An in-vehicle communication line 16 is connected to the in-vehicle communication unit 33.
  • the in-vehicle communication unit 33 is a communication device that communicates with the relay device 10 in accordance with a predetermined communication standard such as CAN.
  • the in-vehicle communication unit 33 transmits information given from the CPU of the control unit 31 to a predetermined relay device 10, and the relay device 10 gives information of the transmission source to the CPU of the control unit 31.
  • the ECU 30 ⁇ / b> B is an ECU that controls the battery 22, and is based on the voltage value and current value of the battery 22, the amount of power stored in the battery 22, and the ratio of the stored power amount to the fully charged amount.
  • SOC State Of Charge
  • the ECU 30C is an ECU that controls the generator 21, and transmits information indicating the state of the generator 21, such as the operating status of the generator 21 and the amount of power generation, to the relay device 10.
  • the ECU 30D is a power train ECU that controls an engine starter 23 (not shown), and transmits an operation status such as ON / OFF of the engine and the rotational speed to the relay device 10.
  • the engine operation is controlled according to the control frame from the relay device 10.
  • Control program update sequence The control program of the ECU 30 is updated at a predetermined timing.
  • the relay device 10 relays the update program to an ECU 30 (hereinafter referred to as a target ECU) that executes an update process at a timing when the update program is received from the server 5 or the like, and functions as a control device.
  • the ECU is requested to execute update processing.
  • FIG. 5 is a sequence diagram showing the flow of update processing in the communication network 4.
  • relay device 10 when an update program is input from server 5 or the like (step S ⁇ b> 1), relay device 10 temporarily stores the update program in storage unit 12.
  • the relay device 10 executes an update request process (step S2).
  • the update request process includes a determination process for determining the battery state of the target ECU (step S21), and a process for requesting the update process by passing the update program to the target ECU according to the determination result (step S22).
  • the target ECU that has received the request from the relay device 10 executes the update process (step S3).
  • the update process in step S3 is performed after updating (new version) to the storage area that is not the storage area in which the control program before update (current version) is written in the first area 321 and the second area 322.
  • region 322 are included.
  • the target ECU notifies the relay apparatus 10 of the completion of the update process (step S4).
  • the relay device 10 deletes the update program temporarily stored in the storage unit 12, and the series of processes ends.
  • the control unit 11 of the relay device 10 includes a determination unit 111 and an update control unit 112. These functions are realized by the CPU of the control unit 11 reading and executing a program stored in the storage unit 12.
  • the drive control unit 113 shown in FIG. 3 is a function included in the control unit 11 of the relay device 10 according to the second embodiment, and is the control unit 11 of the relay device 10 according to the first embodiment. Will be described as not included.
  • the determination unit 111 executes the determination process in step S21.
  • the determination process of step S21 includes a process (first determination process) for determining whether or not a predetermined timing (determination timing) for determining the battery state of the target ECU has been reached, and the determination of the battery 22 at the determination timing.
  • the determination unit 111 determines whether or not it is the determination timing based on the information of the control target device of the ECU input from each ECU to the control unit 11.
  • the determination timing is, for example, when starting, when stopping, when idling stop, when returning from idling stop, and the like.
  • the device information includes, for example, the operating state of the engine and / or the rotational speed, and user operation.
  • the determination unit 111 is at least one of the voltage value and the current value of the battery 22 input from the ECU that controls the battery 22 (ECU 30B in the example of FIG. 2) to the control unit 11. Based on the above, a soundness index value that is an index value indicating the soundness level of the battery 22 is calculated.
  • the determination unit 111 determines the soundness index value based on a signal input from the sensor to the control unit 11. It may be calculated.
  • the soundness index value is, for example, soundness SOH (State Of Health).
  • the soundness index value is described as the soundness degree SOH.
  • the soundness index value is sound when the soundness index value and the threshold value described later are in a magnitude relationship. This is opposite to the magnitude relationship in the case of the degree SOH.
  • the determination unit 111 stores a threshold Th of the soundness degree SOH in advance.
  • the threshold Th is a standard soundness level and represents a standard soundness level.
  • the determination unit 111 compares the calculated soundness level SOH with the threshold value Th.
  • the determination unit 111 passes the comparison result to the update control unit 112 as the determination result of the second determination process.
  • the soundness level SOH is larger than the threshold value Th, the soundness level of the battery 22 is higher than the reference soundness level, that is, not deteriorated. It is lower than the degree of soundness, that is, it is deteriorated.
  • the determination unit 111 determines whether the generator 21 is in a power generation state based on information regarding the generator 21 input from the ECU that controls the generator 21 (ECU 30C in the example of FIG. 2) to the control unit 11. It is determined whether or not.
  • the determination unit 111 passes the determination result of the third determination process to the update control unit 112.
  • the update control unit 112 executes a process for requesting the update process in step S22.
  • the process for requesting the update process in step S22 includes a process for requesting the target ECU to execute a rewrite process (step S31) (first request process) and a switch process for the target ECU (step S32). And a process for requesting (second request process).
  • the update control unit 112 passes the update program to the in-vehicle communication unit 13 and instructs the target ECU to transmit a control frame requesting execution of the rewrite process.
  • the update control unit 112 instructs the in-vehicle communication unit 13 to transmit a control frame that requests execution of the switching process to the target ECU.
  • FIG. 6 is a flowchart showing the flow of update request processing executed in the control unit 11 of the relay apparatus 10.
  • the drive control process of step S108 and step S115 in the process of FIG. 6 is a process performed in the update request process according to the second embodiment. These processes will be described as being not included in the update request process in the first embodiment, and will be described in the second embodiment.
  • control unit 11 executes subsequent processing when an update program is stored in storage unit 12 (YES in step S ⁇ b> 101). That is, the control unit 11 determines whether or not the determination timing has been reached (first determination process), and waits until the determination timing is reached. When the determination timing is reached (YES in step S102), the control unit 11 calculates the soundness level SOH of the battery 22 using information from the ECU 30B, and compares it with the threshold value Th of the soundness level SOH stored in advance (first). 2 determination processing).
  • the control unit 11 requests the target ECU for an update process as usual. That is, when the first condition that the degree of soundness of the battery 22 is higher than the standard degree of soundness is satisfied, the control unit 11 transfers the update program to the target ECU with respect to the in-vehicle communication unit 13. At the same time, an instruction to request execution of the rewriting process is given (step S117). Further, after the rewriting process is executed in the target ECU, the control unit 11 instructs the in-vehicle communication unit 13 to request the target ECU to execute the switching process (step S113).
  • the control unit 11 determines whether or not the generator 21 is in a power generation state using information from the ECU 30C (third determination process).
  • the control unit 11 executes step S105 again. That is, when the first condition is not satisfied and the second condition that the generator 21 is in the power generation state is not satisfied, the control unit 11 does not execute the subsequent processing until the power generation state is established. The system waits until the generator 21 is in a power generation state, that is, until the engine is operated.
  • the control unit 11 causes the output device to output a notification that the generator 21 starts power generation, that is, does not execute the rewriting process until the engine is operated, and waits for the start of the rewriting process.
  • the output device is a display device (not shown), for example, and the control unit 11 instructs the ECU that controls the display device to display a display screen for performing the notification on the display device.
  • step S105 When the power generator 21 is in the power generation state, that is, when the second condition is satisfied (YES in step S105), the control unit 11 transfers the update program to the target ECU to the in-vehicle communication unit 13. At the same time, an instruction to request execution of the rewriting process is given (step S107).
  • the control unit 11 determines again whether or not the generator 21 is in the power generation state (third determination process).
  • the control unit 11 continues until the generator 21 enters the power generation state, that is, Wait until the engine is running. Therefore, preferably, the control unit 11 causes the output device to output a notification that the generator 21 starts power generation, that is, does not execute the switching process until the engine is operated, and waits for the start of the switching process.
  • the output device is a display device (not shown), for example, and the control unit 11 instructs the ECU that controls the display device to display a display screen for performing the notification on the display device.
  • Step S113 When the generator 21 is in a power generation state, that is, when the second condition is satisfied (YES in step S109), the control unit 11 requests the in-vehicle communication unit 13 to execute a switching process on the target ECU. (Step S113).
  • control unit 11 is in a power generation state (YES in step S109), and when the user's permission to execute the switching process during operation of the engine is obtained (step S109) In S111, the in-vehicle communication unit 13 is instructed to request the target ECU to execute the switching process (step S113).
  • the generator 21 When the soundness level of the battery 22 reaches a state that does not satisfy the threshold value, that is, when the battery 22 has deteriorated to a specified level and the generator 21 is not in the power generation state, the generator 21 is in the power generation state. Until that time, that is, until the engine is operated, the start of the update process in the target ECU is suspended. At this time, the relay apparatus 10 notifies the user that the update process is on standby, so that the user can know that the engine needs to be operated in order to start the update process. As a result, a user who prioritizes execution of the update process can start the update process by operating the engine for power supply. Thereby, a user's convenience can be improved.
  • the relay device 10 When the generator 21 is in a power generation state, that is, while the engine is running, the relay device 10 causes the target ECU to execute a switching process when the user has given permission.
  • the switching process may involve a reset of the target ECU, and the operation of the device to be controlled by the target ECU may be temporarily stopped or the display mode may be changed during the reset process. If the user does not like to be in such a state during traveling, the user can be prohibited from executing the switching process. Thereby, a user's convenience can be improved.
  • the relay apparatus 10 according to the second embodiment executes an update request process including the drive control process of steps S108 and S115 of FIG. Therefore, the control unit 11 of the relay apparatus 10 according to the second embodiment further includes the drive control unit 113 shown in FIG.
  • the drive control process in step S108 and step S115 is a process for performing control to continue driving the engine during the update process.
  • the drive control unit 113 causes the in-vehicle communication unit 13 to transmit a control frame that instructs the ECU that controls the engine to continue driving the engine.
  • control unit 11 of relay device 10 executes the drive control process after requesting the target ECU to execute the rewrite process in step S107. (Step S108). That is, the ECU that controls the engine is requested to continue driving the engine during the rewriting process in the target ECU.
  • control unit 11 executes the drive control process after requesting the target ECU to execute the switching process in step S113 (step S115). That is, the ECU that controls the engine is requested to continue driving the engine during the switching process in the target ECU.
  • the relay device 10 executes the above update request process, it is possible to avoid stopping the engine after confirming that the engine is operating and starting the update process in the target ECU.
  • the engine may stop when the vehicle 1 stops due to a function such as idling stop. Even in the case where idling is stopped during the update process in the target ECU, the operation of the engine is continued by the drive control process. Thereby, the power supply from the generator 21 to the target ECU is continued, and the update process can be continued.
  • the second condition is that the power generation amount of the generator is larger than the power consumption amount in the vehicle.
  • FIG. 7 is a schematic diagram illustrating an example of a power supply configuration of the vehicle according to the present embodiment.
  • a battery sensor 100 is provided on the power line 17 extending from the battery 22 to the in-vehicle device such as the relay device 10, the ECUs 30 ⁇ / b> A, 30 ⁇ / b> B, 30 ⁇ / b> C, and the starter 23.
  • the battery sensor 100 detects a current value output from the battery 22.
  • the battery sensor 100 is connected to an ECU 30C that controls the generator 21 through a signal line. The current value detected by the battery sensor 100 is transmitted from the battery sensor 100 to the ECU 30C.
  • the ECU 30C includes a voltage sensor 110, for example.
  • Voltage sensor 110 detects a voltage value applied to in-vehicle devices such as relay device 10, ECUs 30 ⁇ / b> A, 30 ⁇ / b> B, 30 ⁇ / b> C, and starter 23.
  • in-vehicle devices such as the relay device 10, the ECUs 30 ⁇ / b> A, 30 ⁇ / b> B, 30 ⁇ / b> C, and the starter 23 are connected in parallel by the power line 17 and the same voltage is applied.
  • the voltage sensor 110 can detect the voltage value in the ECU 30C, for example.
  • the voltage sensor 110 may be provided outside the ECU 30C.
  • ECU30C can receive the electric current value detected by the battery sensor 100, and can acquire the voltage value detected by the voltage sensor 110.
  • FIG. The ECU 30C can calculate the power consumption amount EC in the vehicle 1 based on the current value and the voltage value.
  • the ECU 30C can receive information on the power generation amount EG from the generator 21.
  • the generator 21 may transmit not the power generation amount EG but operation status information including the rotation speed.
  • the ECU 30C can calculate the power generation amount EG using the rotation speed.
  • the ECU 30C can transmit the power consumption amount EC and the power generation amount EG to the relay device 10.
  • the ECU 30 ⁇ / b> C gives the relay device 10 the current value detected by the battery sensor 100, the voltage value detected by the voltage sensor 110, and the rotation speed of the generator 21 instead of the power consumption amount EC and the power generation amount EG. You may send it.
  • the relay device 10 may calculate the power consumption amount EC from the current value and the voltage value, and may calculate the power generation amount EG from the rotational speed of the generator 21.
  • the determination unit 111 has a power generation amount EG input to the control unit 11 from the ECU (ECU 30C in the example of FIG. 7) that controls the generator 21 larger than the power consumption amount EC. It is determined whether or not.
  • the determination unit 111 passes the determination result of the third determination process to the update control unit 112.
  • the first determination process and the second determination process are the same as those in the first embodiment.
  • FIG. 8 is a flowchart showing the flow of update request processing executed in the control unit 11 of the relay apparatus 10 according to the present embodiment.
  • omitted description is the same as that of 1st Embodiment.
  • the control unit 11 requests the target ECU for an update process as usual. That is, when the first condition that the degree of soundness of the battery 22 is higher than the standard degree of soundness is satisfied, the control unit 11 transfers the update program to the target ECU with respect to the in-vehicle communication unit 13. At the same time, an instruction to request execution of the rewriting process is given (step S117). Further, after the rewriting process is executed in the target ECU, the control unit 11 instructs the in-vehicle communication unit 13 to request the target ECU to execute the switching process (step S113).
  • the control unit 11 Receives the power generation amount EG from the ECU 30C (step S201), and receives the power consumption amount EC (step S202).
  • the control unit 11 receives the current value detected by the battery sensor 100, the voltage value detected by the voltage sensor 110, and the rotation speed of the generator 21 from the ECU 30C, and uses the current value and the voltage value to calculate the power consumption EC.
  • the power generation amount EG may be calculated from the rotational speed of the generator 21.
  • the control unit 11 compares the power generation amount EG and the power consumption amount EC (third determination process). Control is performed when the power generation amount EG is less than the power consumption amount EC, that is, the power generation amount EG of the generator 21 is larger than the power consumption amount EC in the vehicle 1 (the second condition is not satisfied) (NO in step S203). The unit 11 executes step S203 again. That is, when the first condition is not satisfied and the second condition is not satisfied, the control unit 11 does not perform the subsequent processing until the power generation amount EG becomes equal to or greater than the power consumption amount EC, and generates the power generation amount EG. Is on standby until the power consumption EC is greater than or equal to EC.
  • the control unit 11 does not execute the rewriting process until the power generation amount EG becomes equal to or greater than the power consumption amount EC, and causes the output device to output a notification of waiting for the start of the rewriting process.
  • the output device is a display device (not shown), for example, and the control unit 11 instructs the ECU that controls the display device to display a display screen for performing the notification on the display device.
  • the control unit 11 updates the target ECU with respect to the in-vehicle communication unit 13. And instructing the execution of the rewriting process (step S107).
  • the control unit 11 determines again whether or not the power generation amount EG is equal to or greater than the power consumption amount EC (third determination process). ).
  • the control unit 11 determines that the power generation amount EG is equal to or greater than the power consumption amount EC. Wait until For this reason, preferably, the control unit 11 does not execute the switching process until the power generation amount EG becomes equal to or greater than the power consumption amount EC, and causes the output device to output a notification of waiting for the start of the switching process.
  • the output device is a display device (not shown), for example, and the control unit 11 instructs the ECU that controls the display device to display a display screen for performing the notification on the display device.
  • step S204 When the power generation amount EG is equal to or greater than the power consumption amount EC, that is, when the second condition is satisfied (YES in step S204), the control unit 11 performs a switching process on the target ECU with respect to the in-vehicle communication unit 13. An instruction to request execution is given (step S113).
  • the relay apparatus 10 may execute an update request process including the drive control process in steps S108 and S115 in FIG. 8 as in the second embodiment.
  • the power generation amount EG Until the power consumption amount EC becomes equal to or greater than the power consumption EC, the start of the update process in the target ECU is suspended.
  • the relay device 10 notifies the user of the waiting for the update process, so that the user can know that the engine needs to be operated in order to start the update process.
  • the user who gives priority to the execution of the update process can start the update process by operating the engine to supply power. Thereby, a user's convenience can be improved.
  • the relay device 10 causes the target ECU to execute a switching process when the user has given permission.
  • the switching process may involve a reset of the target ECU, and the operation of the device to be controlled by the target ECU may be temporarily stopped or the display mode may be changed during the reset process. If the user does not like to be in such a state during traveling, the user can be prohibited from executing the switching process. Thereby, a user's convenience can be improved.
  • the soundness index value is not limited to only the soundness SOH or the deterioration degree SOD.
  • Another example of the soundness index value is information such as information indicating the state of the battery 22 and information measured by a specific operator such as a dealer and stored in an ECU that controls the battery 22. Also good.
  • the information indicating the state of the battery 22 is, for example, the soundness level SOH measured on the inspection date.
  • the measured value is, for example, a measurement result of the specific gravity of the battery fluid.
  • the determination unit 111 of the relay device 10 executes the second determination process using the above information input from the ECU to the control unit 11.
  • the control device is not limited to the relay device 10 and may be an ECU other than the relay device 10. Alternatively, the control device may be a dedicated device independent of the relay device 10.
  • the control apparatus may execute the first determination process and the second determination process, and pass the determination result of the soundness level of the battery 22 to another apparatus to instruct the execution of the update request process. .
  • the disclosed features are realized by one or more modules.
  • the feature can be realized by a circuit element or other hardware module, by a software module that defines processing for realizing the feature, or by a combination of a hardware module and a software module.
  • a program that is a combination of one or more software modules for causing a computer to execute the above-described operation.
  • a program is recorded on a computer-readable recording medium such as a flexible disk attached to the computer, a CD-ROM (Compact Disk-Read Only Memory), a ROM, a RAM, and a memory card, and provided as a program product.
  • the program can be provided by being recorded on a recording medium such as a hard disk built in the computer.
  • a program can also be provided by downloading via a network.
  • the program according to the present disclosure is a program module that is provided as a part of a computer operating system (OS) and calls necessary modules in a predetermined arrangement at a predetermined timing to execute processing. Also good. In that case, the program itself does not include the module, and the process is executed in cooperation with the OS. Such a program that does not include a module may also be included in the program according to the present disclosure.
  • OS computer operating system
  • the program according to the present disclosure may be provided by being incorporated in a part of another program. Even in this case, the program itself does not include the module included in the other program, and the process is executed in cooperation with the other program.
  • a program incorporated in such another program may also be included in the program according to the present disclosure.
  • the provided program product is installed in a program storage unit such as a hard disk and executed.
  • the program product includes the program itself and a recording medium on which the program is recorded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stored Programmes (AREA)
  • Information Transfer Between Computers (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention concerne un dispositif de commande qui comporte : une unité de communication embarquée capable de communiquer avec un dispositif de commande embarqué ; et une unité de commande qui commande l'unité de communication embarquée. Sur la base de l'adéquation d'une batterie pour fournir de l'énergie au dispositif de commande embarqué et de l'état d'alimentation électrique effectué par un générateur d'énergie qui est capable de fournir de l'énergie au dispositif de commande embarqué, l'unité de commande exécute un processus de détermination pour déterminer s'il faut ou non amener l'unité de communication embarquée à transmettre une demande d'exécution d'un processus de mise à jour d'un programme de commande pour le dispositif de commande embarqué.
PCT/JP2019/008927 2018-03-28 2019-03-06 Dispositif de commande, procédé de commande et programme informatique WO2019188073A1 (fr)

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CN114056257A (zh) * 2020-07-30 2022-02-18 丰田自动车株式会社 车载系统
JP2022144936A (ja) * 2021-03-19 2022-10-03 本田技研工業株式会社 プログラム更新制御装置、プログラム更新制御方法、及びプログラム

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JP2008199822A (ja) * 2007-02-14 2008-08-28 Denso Corp 充電制御装置
JP2012103181A (ja) * 2010-11-12 2012-05-31 Clarion Co Ltd 車載機のオンライン更新方法
JP2016060388A (ja) * 2014-09-18 2016-04-25 株式会社オートネットワーク技術研究所 プログラム送信システム及びプログラム送信装置
JP2018037059A (ja) * 2016-08-30 2018-03-08 株式会社オートネットワーク技術研究所 車載更新装置及び車載更新システム

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Publication number Priority date Publication date Assignee Title
JP2008199822A (ja) * 2007-02-14 2008-08-28 Denso Corp 充電制御装置
JP2012103181A (ja) * 2010-11-12 2012-05-31 Clarion Co Ltd 車載機のオンライン更新方法
JP2016060388A (ja) * 2014-09-18 2016-04-25 株式会社オートネットワーク技術研究所 プログラム送信システム及びプログラム送信装置
JP2018037059A (ja) * 2016-08-30 2018-03-08 株式会社オートネットワーク技術研究所 車載更新装置及び車載更新システム

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114056257A (zh) * 2020-07-30 2022-02-18 丰田自动车株式会社 车载系统
CN114056257B (zh) * 2020-07-30 2024-03-15 丰田自动车株式会社 车载系统
JP2022144936A (ja) * 2021-03-19 2022-10-03 本田技研工業株式会社 プログラム更新制御装置、プログラム更新制御方法、及びプログラム
JP7248727B2 (ja) 2021-03-19 2023-03-29 本田技研工業株式会社 プログラム更新制御装置、プログラム更新制御方法、及びプログラム

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