WO2020093626A1 - Système d'alimentation électrique et véhicule - Google Patents

Système d'alimentation électrique et véhicule Download PDF

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Publication number
WO2020093626A1
WO2020093626A1 PCT/CN2019/075930 CN2019075930W WO2020093626A1 WO 2020093626 A1 WO2020093626 A1 WO 2020093626A1 CN 2019075930 W CN2019075930 W CN 2019075930W WO 2020093626 A1 WO2020093626 A1 WO 2020093626A1
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WO
WIPO (PCT)
Prior art keywords
power supply
supply circuit
voltage
vehicle
module
Prior art date
Application number
PCT/CN2019/075930
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English (en)
Chinese (zh)
Inventor
夏斌
Original Assignee
北京宝沃汽车有限公司
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Filing date
Publication date
Application filed by 北京宝沃汽车有限公司 filed Critical 北京宝沃汽车有限公司
Publication of WO2020093626A1 publication Critical patent/WO2020093626A1/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
    • 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
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles

Definitions

  • the present disclosure relates to the technical field of vehicles, and in particular, to a power supply system and a vehicle.
  • a single power supply module is usually used on the market to supply power to the vehicle's electrical appliances.
  • the power supply module also needs to supply power to the starter used to drive the engine, which will cause the voltage of the vehicle electrical appliances to drop, which in turn will cause the vehicle to be used.
  • the electrical appliance fails due to the instantaneous low voltage, which affects the safety of driving.
  • the present disclosure provides a power supply system and a vehicle.
  • the present disclosure provides a power supply system, which is applied to a vehicle, and the system includes: a high-voltage power supply module, a low-voltage power supply module, and a controller;
  • the high-voltage power supply module is used to connect with the vehicle electrical appliances of the vehicle to form a first power supply circuit
  • the low-voltage power supply module is used to connect with the starter of the vehicle to form a second power supply circuit
  • the first power supply circuit is connected to the second power supply circuit through the controller, and the controller is used to turn on or off the connection between the first power supply circuit and the second power supply circuit.
  • controller is used to:
  • controller is used to:
  • connection between the first power supply circuit and the second power supply circuit is turned on to turn on the power supply circuit that supplies power to the vehicle electrical appliance from the low-voltage power supply module.
  • controller is also used to:
  • the connection between the first power supply circuit and the second power supply circuit is turned on to turn on the low-voltage power supply module to the vehicle Power supply circuit powered by electrical appliances.
  • controller is also used to:
  • the connection between the first power supply circuit and the second power supply circuit is turned on to turn on the low-voltage power supply module to the vehicle Power supply circuit powered by electrical appliances.
  • system further includes:
  • the power detection module is respectively connected to the low-voltage power supply module and the controller, and is used to obtain the remaining power of the low-voltage power supply module in real time;
  • the controller is further configured to, when the target power consumption is less than the first preset threshold and the acquired remaining power is greater than or equal to a second preset threshold, disconnect the first power supply circuit and the A connection between the second power supply circuits to disconnect the power supply circuit that supplies the low-voltage power supply module to the vehicle electrical appliance and the power supply circuit that supplies the high-voltage power supply module to the low-voltage power supply module.
  • controller is also used to:
  • system further includes:
  • the switch module is respectively connected to the airbag controller of the vehicle, the low-voltage power supply module and the starter, and is used to switch the low-voltage when receiving an instruction signal sent by the airbag controller indicating that the vehicle has collided.
  • the power supply circuit between the power supply module and the starter is disconnected.
  • the system further includes a jump start interface provided between the switch module and the starter, the jump start interface is configured to turn on the switch module and the starter.
  • Power supply circuit provided between the switch module and the starter, the jump start interface is configured to turn on the switch module and the starter.
  • the jump start interface is provided in the engine compartment of the vehicle;
  • the low-voltage power supply module is provided in the middle of the body of the vehicle or in the luggage compartment.
  • the high-voltage power supply module includes a high-voltage power supply and a voltage conversion sub-module
  • the voltage conversion sub-module is respectively connected to the high-voltage power supply and the vehicle electrical appliance, and is used to convert the output voltage of the high-voltage power supply to a preset voltage and output it to the vehicle electrical appliance.
  • the present disclosure also provides a vehicle, including a vehicle electrical appliance, a starter, and a power supply system provided by the present disclosure.
  • the high-voltage power supply module is used to connect with the vehicle's electrical appliances to form a first power supply circuit; the low-voltage power supply module is used to connect to the vehicle's starter to form a second power supply circuit; the first power supply circuit is connected to the second power supply circuit through the controller Connection, the controller is used to turn on or off the connection between the first power supply circuit and the second power supply circuit, when the controller turns on the connection between the first power supply circuit and the second power supply circuit, the high-voltage power supply module and the low-voltage power supply
  • the module can jointly supply power for the vehicle's electrical appliances; when the controller disconnects the first power supply circuit and the second power supply circuit, the first power supply circuit and the second power supply circuit are separated, so that during the operation of the vehicle When the starter is needed to start the engine, the high-voltage power supply module supplies power to the vehicle electrical appliances, and the low-voltage power supply module supplies power to the starter, thus ensuring that the starter can start normally and the voltage of the vehicle electrical appliances is stable. Reduced security risks.
  • FIG. 1 is a block diagram of a power supply system according to an exemplary embodiment of the present disclosure
  • FIG. 2 is a block diagram of a power supply system according to another exemplary embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of a power supply system according to an exemplary embodiment of the present disclosure.
  • Fig. 4 is a schematic structural diagram of a power supply system according to another exemplary embodiment of the present disclosure.
  • Fig. 1 is a block diagram of a power supply system according to an exemplary embodiment of the present disclosure.
  • the system 100 can be applied to a vehicle 200, which includes a vehicle electrical appliance 201 and a starter 202, wherein the vehicle electrical appliance 201 includes a high and low speed fan, an instrument panel, a car lamp, etc. (Not shown), the starter 202 is used to start the engine (not shown in the figure).
  • the system 100 may include a high-voltage power supply module 101, a controller 102, and a low-voltage power supply module 103.
  • the high-voltage power supply module 101 is connected to the vehicle electrical appliance 201 of the vehicle 200 to form a first power supply circuit;
  • the low-voltage power supply module 103 is connected to the vehicle starter 202 to form a second power supply circuit;
  • the first power supply circuit is connected to the second through the controller 102
  • the power supply circuit is connected, and the controller 102 is used to turn on or off the connection between the first power supply circuit and the second power supply circuit.
  • the high-voltage power supply module 101 and the low-voltage power supply module 103 jointly supply power to the vehicle electrical appliance 201 and the starter 202; when the controller 102 disconnects the first
  • the high-voltage power supply module 101 supplies power to the vehicle electrical appliance 201
  • the low-voltage power supply module 103 supplies power to the starter 202.
  • the vehicle electrical appliance 201 supplies power
  • the circuit and the power supply circuit of the starter 202 are separated and independent, so as to ensure that the starter 202 can be normally started, and stabilize the voltage of the electrical appliance 201 for the entire vehicle, reducing potential safety hazards.
  • the controller 102 may be used to disconnect the connection between the first power supply circuit and the second power supply circuit when receiving the start signal to the starter 202 to disconnect the low-voltage power supply module 103 A power supply circuit powered by the electric appliance 201 for the entire vehicle.
  • the start signal may be a signal that is triggered when the vehicle receives a start request command for the engine.
  • the controller 102 can also detect the working state of the high-voltage power supply module 101, and when the working state of the high-voltage power supply module 101 is abnormal, turn on between the first power supply circuit and the second power supply circuit To connect the low-voltage power supply module 103 to the power supply circuit of the vehicle electrical appliance 201. At this time, the low-voltage power supply module 103 supplies power to the vehicle electrical appliance 201 to ensure that the vehicle electrical appliance 201 can work normally.
  • the controller 102 can also obtain the target power consumption of the vehicle electrical appliance 201.
  • the target power consumption of the vehicle electrical appliance 201 is greater than or equal to the first preset threshold, only relying on high voltage
  • the power supply module 101 cannot meet the power demand of the vehicle electrical appliance 201, so the controller 102 can turn on the connection between the first power supply circuit and the second power supply circuit to turn on the low voltage power supply module 103 to supply power to the vehicle electrical appliance 201 Power supply circuit.
  • the high-voltage power supply module 101 and the low-voltage power supply module 103 jointly supply power to the vehicle electrical appliance 201 to meet the power demand of the vehicle electrical appliance 201.
  • the power supply system 100 may further include a power detection module 104.
  • the power detection module 104 is respectively connected to the controller 102 and the low-voltage power supply module 103, and can be used to obtain the remaining power of the low-voltage power supply module 103 in real time.
  • the controller 102 can disconnect the connection between the first power supply circuit and the second power supply circuit to disconnect the power supply from the voltage power supply module 103 to the vehicle electrical appliance 201 The circuit and the power supply circuit that the high-voltage power supply module 101 supplies to the low-voltage power supply module 102.
  • the high-voltage power supply module 101 supplies power to the vehicle electrical appliance 201; if the remaining power of the obtained low-voltage power supply module 103 is less than the third preset threshold, it may be considered that the low-voltage power supply module 103 needs to be charged, and the controller 102 may The connection between the first power supply circuit and the second power supply circuit is turned on to turn on the power supply circuit that the high-voltage power supply module 101 supplies to the low-voltage power supply module 103. At this time, the high-voltage power supply module 101 supplies power to the vehicle electrical appliance 201, and at the same time, the high-voltage power supply module 101 charges the low-voltage power supply module 103.
  • the low-voltage power supply module 103 can be installed in different positions of the vehicle, for example, it can be installed in the engine compartment, luggage compartment, and middle body of the vehicle (such as the middle of the cockpit) .
  • the power supply system 100 may further include a switch module 105.
  • the switch module 105 is respectively connected to the vehicle's airbag controller (not shown in the figure), the low-voltage power supply module 103 and the starter 202, and can be used to receive an instruction signal from the airbag controller indicating that the vehicle has collided, The power supply circuit between the low-voltage power supply module 103 and the starter 202 is disconnected.
  • the high-voltage power supply module 101 and the low-voltage power supply module 103 can normally supply power to the vehicle electrical appliance 201 to ensure that the vehicle electrical appliance 201 works normally, for example, the door of the vehicle can be unlocked normally, and the TBOX can normally alarm.
  • the low-voltage power supply module 103 is installed in the middle of the vehicle body or the luggage compartment. Considering that the low-voltage power supply module 103 needs to be connected to an external power supply to ensure that the starter 202 can start normally, as shown in FIG. 2, the power supply system 100 also The jump start interface 106 may be included.
  • the straddle start interface 106 is configured to turn on the power supply circuit between the switch module 105 and the starter 202, and the jump start interface 106 is provided in the engine compartment of the vehicle 200.
  • the positive line of the external power supply can be connected to the jumper start interface 106 and the negative line of the external power supply can be grounded to power the starter 202 so that the starter 202 can work normally Starting the engine eliminates the need for the user to open the middle of the body of the vehicle 200 or the luggage compartment to find the low-voltage power supply module 103, which increases convenience.
  • FIGS. 3 and 4 are schematic structural diagrams of a power supply system according to an exemplary embodiment of the present disclosure, where the system 100 can be applied to a vehicle 200.
  • the system 100 includes a high-voltage power supply module 101, a controller 102, a low-voltage power supply module 103, a power detection module 104, a switch module 105, and a jump-start interface 106.
  • the controller 102 may include a switch 121, one end of which is connected to the high-voltage power supply module 101 and the vehicle electrical appliance 201, and the other end is connected to the low-voltage power supply module 103 and the starter 202, respectively.
  • the low-voltage power supply module 103 may include a low-voltage power supply 131 (for example, a low-voltage battery), which may be installed in different positions of the vehicle as needed, for example, may be installed in the engine compartment of the vehicle (as shown in FIG. 3), or may be installed in the luggage of the vehicle The middle of the cabin or cockpit (as shown in Figure 4).
  • a low-voltage power supply 131 for example, a low-voltage battery
  • the high-voltage power supply module 101 may include a high-voltage power supply 111 (such as a high-voltage battery) and a voltage conversion sub-module 112, wherein the voltage conversion sub-module 112 is connected to the high-voltage power supply 111 and the vehicle electrical appliance 201 respectively, and may be used to connect the high-voltage power supply 111
  • the output voltage is converted into a preset voltage and output to the vehicle electrical appliance 201.
  • the voltage conversion sub-module 112 may include a high-voltage DC-DC converter and a low-voltage DC-DC converter, wherein the high-voltage DC-DC converter may convert the output voltage of the high-voltage power supply 111 to a voltage of 12V and output the low-voltage DC -The DC converter can convert the 12V voltage output by the high-voltage DC-DC converter into the voltage required by different devices in the vehicle electrical appliances, and then supply power to each device.
  • the high-voltage power supply module 101 may further include a plurality of fuse boxes respectively connected to the vehicle electrical appliances 201.
  • the high-voltage power supply module 101 may include an engine fuse box (EJB) 113 and an instrument cross-beam fuse box (IPJB) 114.
  • EJB engine fuse box
  • IPJB instrument cross-beam fuse box
  • the high-voltage power supply module 101 may further include a rear compartment fuse box (RJB) 115 and a power distribution box for distributing electricity 116, wherein the power distribution box 116 may be a primary fuse box, which is connected to the controller 102, the engine fuse box (EJB) 113, and the rear compartment fuse box (RJB) 115, respectively.
  • RJB rear compartment fuse box
  • the power distribution box 116 may be a primary fuse box, which is connected to the controller 102, the engine fuse box (EJB) 113, and the rear compartment fuse box (RJB) 115, respectively.
  • the power detection module 104 may include a battery sensor (IBS) 141.
  • IBS battery sensor
  • the switch module 105 may include a crash power switch (SBK) 151, which is controlled by an airbag controller (SDM).
  • the crash power switch 151 has one end connected to the low-voltage power supply 131 of the vehicle and the other end connected to the starter 202 via a jump start interface 106 .
  • the controller 102 receives the collision signal sent by the airbag controller, and the switch module 105 is powered off, which can protect the starter circuit from short circuit and fire, and the switch 121 is connected to the low voltage power supply 131 and the vehicle electrical appliance 201
  • the power supply circuit in between ensures that the vehicle's other electrical appliances are constantly powered, the four doors of the vehicle can be unlocked normally, and the on-board T-BOX can normally alarm.
  • the switch 121 when there is no need to start the vehicle's starter 202, the switch 121 is in a closed state, the current output by the low-voltage power supply 131 flows to the vehicle electrical appliances through each fuse box, and the current output by the high-voltage power supply 111 sequentially passes through the voltage converter The module 112 and each fuse box then flow to the vehicle electrical appliance. At this time, the high-voltage power supply 111 and the low-voltage power supply 131 supply power to the vehicle electrical appliance 201 together.
  • the trigger switch 121 is turned off, the power supply circuit between the low-voltage power supply 131 and the vehicle electrical appliance 201 is disconnected, and the low-voltage power supply 131 supplies power to the starter.
  • the current output by the high-voltage power supply 111 passes through the voltage conversion sub-module 112 and each fuse box to flow to the vehicle electrical appliance 201 in order to supply power to the vehicle electrical appliance 201.
  • the power supply circuit of the vehicle electrical appliance and the starter power supply circuit are Separation is independent, so as to ensure that the starter can start normally, at the same time, it stabilizes the voltage of the vehicle electrical appliances and reduces potential safety hazards.
  • the trigger switch 121 When an abnormality is detected in the voltage conversion sub-module 112, the trigger switch 121 is closed to turn on the power supply circuit between the low-voltage power supply 131 and the vehicle electrical appliance 201. At this time, the current output from the low-voltage power supply 131 flows to the starter on the one hand Start the starter, on the other hand, flow through the fuses to the vehicle electrical appliance 201 to supply power to the vehicle electrical appliance 201 to ensure that the vehicle electrical appliance can work normally.
  • the collision power-off switch (SBK) 151 is closed, and at this time, the power supply circuit between the low-voltage power supply 131 and the starter 201 is turned on, The starter can start normally; if the vehicle collides, the collision switch (SBK) 151 is triggered to be disconnected.
  • the power supply circuit that the low-voltage power supply 131 supplies to the starter 201 is disconnected, and the high-voltage power supply 111 supplies power to the vehicle electrical appliance 201
  • the power supply circuit is turned on, while ensuring the normal operation of the electrical appliance 201 for the entire vehicle, it can avoid the short circuit and fire of the power supply circuit of the starter caused by the vehicle collision.
  • the switch 121 For the power supply process of the vehicle electrical appliance 201, when it is detected that the target electric quantity of the vehicle electrical appliance 201 is greater than or equal to the first preset threshold, the switch 121 is closed, and the low-voltage power supply 131 supplies power to the vehicle electrical appliance 201.
  • the low-voltage power supply 131 and the high-voltage power supply 111 together supply power to the vehicle electrical appliances to meet the power demand of the vehicle electrical appliances; when it is detected that the target power of the vehicle electrical appliances is less than the first preset threshold, the battery sensor (IBS ) 141 can detect the remaining power of the low-voltage power supply 131 in real time. If the obtained remaining power is greater than or equal to the second preset threshold, the switch 121 is turned off.
  • the power supply circuit that the high-voltage power supply 111 supplies to the low-voltage power supply 131 is disconnected.
  • the low-voltage power supply 131 supplies power to the vehicle's electrical appliances; if the obtained remaining power is less than the second preset threshold, the switch 121 is closed.
  • the power supply circuit that the high-voltage power supply 111 supplies to the low-voltage power supply 131 is turned on, and the high-voltage power supply 111 is The vehicle electrical appliance 201 and the low-voltage power supply 131 supply power.
  • the present disclosure also provides a vehicle, including a vehicle electrical appliance, a starter, and the power supply system described in any one of the foregoing embodiments, and the power supply system will not be repeated here.

Abstract

La présente invention a trait à un système d'alimentation électrique et à un véhicule. Le système comprend un module d'alimentation électrique haute tension, un module d'alimentation électrique basse tension et un dispositif de commande ; le module d'alimentation électrique haute tension est configuré pour être connecté à des dispositifs électriques de véhicule d'un véhicule pour former un premier circuit d'alimentation électrique ; le module d'alimentation électrique basse tension est configuré pour être connecté au démarreur du véhicule afin de former un second circuit d'alimentation électrique ; le premier circuit d'alimentation électrique est connecté au second circuit d'alimentation électrique au moyen du dispositif de commande ; le dispositif de commande est utilisé pour connecter le premier circuit d'alimentation électrique au second circuit d'alimentation électrique ou déconnecter le premier circuit d'alimentation électrique du second circuit d'alimentation électrique. Au moyen de la solution technique de la présente invention, un circuit d'alimentation électrique pour des dispositifs électriques de véhicule peut être connecté à un circuit d'alimentation électrique ou en être isolé pour le démarreur ; lorsque le circuit d'alimentation électrique pour les dispositifs électriques de véhicule est déconnecté du circuit d'alimentation électrique pour le démarreur, et que le moteur doit être démarré par le démarreur pendant le déplacement du véhicule, le module d'alimentation électrique haute tension fournit de l'énergie aux dispositifs électriques du véhicule, et le module d'alimentation électrique basse tension fournit de l'énergie au démarreur, ce qui permet d'assurer que le démarreur peut démarrer normalement et que la tension des dispositifs électriques du véhicule est stable, et de réduire les risques de sécurité.
PCT/CN2019/075930 2018-11-06 2019-02-22 Système d'alimentation électrique et véhicule WO2020093626A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811315253.2 2018-11-06
CN201811315253.2A CN111137231A (zh) 2018-11-06 2018-11-06 供电系统和车辆

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WO2020093626A1 true WO2020093626A1 (fr) 2020-05-14

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CN114194029B (zh) * 2021-11-01 2024-01-09 岚图汽车科技有限公司 一种车辆供电系统及车辆

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JPH07115704A (ja) * 1993-10-14 1995-05-02 Toyota Motor Corp リターダ装置
CN1279176A (zh) * 1999-05-24 2001-01-10 丰田自动车株式会社 用于在由电源给负载装置供电时诊断该电源的装置
CN101503063A (zh) * 2008-11-28 2009-08-12 清华大学 一种燃料电池汽车的车载电气系统
CN102343877A (zh) * 2010-07-27 2012-02-08 福特全球技术公司 低压总线稳定性
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CN204586545U (zh) * 2015-04-17 2015-08-26 包头市北工机械有限公司 一种电动车控制装置

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