WO2022166364A1 - Système de distribution de puissance, procédé de commande pour système de distribution de puissance et véhicule à énergie nouvelle - Google Patents

Système de distribution de puissance, procédé de commande pour système de distribution de puissance et véhicule à énergie nouvelle Download PDF

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Publication number
WO2022166364A1
WO2022166364A1 PCT/CN2021/135938 CN2021135938W WO2022166364A1 WO 2022166364 A1 WO2022166364 A1 WO 2022166364A1 CN 2021135938 W CN2021135938 W CN 2021135938W WO 2022166364 A1 WO2022166364 A1 WO 2022166364A1
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Prior art keywords
voltage
switch unit
unit
detection point
voltage switch
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Ceased
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PCT/CN2021/135938
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English (en)
Chinese (zh)
Inventor
曲振宁
弭超
马云天
慈伟程
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FAW Group Corp
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FAW Group Corp
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    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

Definitions

  • the embodiments of the present application relate to the technical field of new energy, for example, to a power distribution system, a control method of the power distribution system, and a new energy vehicle.
  • the new energy vehicle dual-motor hybrid system is different from the previous Electric Vehicle (EV), Hybrid Electric Vehicle (HEV) and Plug-in Hybrid Electric Vehicle (PHEV). Differently, there are two high-voltage power supplies, namely the power battery assembly and the dual-motor high-voltage generator assembly.
  • the high-voltage power distribution box is integrated in the power battery pack, which distributes the power of the power battery to different power loads of the vehicle, and is the core component of the high-voltage electrical system.
  • the BMS battery management system, battery management module
  • the motor controller can monitor the output voltage and current of the high-voltage generator in real time
  • the power battery in the dual-motor hybrid system The high-voltage generator and the high-voltage generator are powered on and off independently, and the power distribution system cannot support the coordinated work of the two sets of high-voltage power supply systems.
  • Embodiments of the present application provide a power distribution system, a control method for the power distribution system, and a new energy vehicle.
  • an embodiment of the present application provides a power distribution system, the power distribution system includes: a high-voltage power distribution device; the high-voltage power distribution device includes a first high-voltage switch unit, a second high-voltage switch unit, and a high-voltage power management unit ;
  • the control terminal of the first high-voltage switch unit and the control terminal of the second high-voltage switch unit are respectively connected to the high-voltage power management unit, the first terminal of the first high-voltage switch unit is connected to the power battery, and the first high-voltage switch unit is connected to the power battery.
  • the second end of a high-voltage switch unit is connected to the drive motor, the first end of the second high-voltage switch unit is connected to the high-voltage generator, and the second end of the second high-voltage switch unit is connected to the drive motor;
  • the high-voltage power management unit is configured to send a first switch control signal to the control terminal of the first high-voltage switch unit or the control terminal of the second high-voltage switch unit to control the first high-voltage switch unit or the second high-voltage switch unit. Two high-voltage switch units are turned on;
  • the first switch control signal is generated according to the driving control signal sent by the vehicle control unit; the vehicle control unit is set to be based on the control command obtained from the man-machine interface or according to the remaining capacity of the battery of the power battery The drive control signal is sent.
  • the embodiments of the present application also provide a new energy vehicle, the new energy vehicle includes: a human-machine interface, a vehicle control unit, a power battery, a high-voltage generator, a drive motor, and the power distribution described in the first aspect. system;
  • the vehicle control unit is respectively connected with the man-machine interface, the high-voltage generator, the power battery and the power distribution system;
  • the power distribution system is connected to the drive motor.
  • an embodiment of the present application further provides a control method for a power distribution system.
  • the control method for the power distribution system adopts the power distribution system described in the first aspect, and the control method for the power distribution system includes:
  • the high-voltage power management unit sends a first switch control signal to the control terminal of the first high-voltage switch unit or the control terminal of the second high-voltage switch unit to control the first high-voltage switch unit or the second high-voltage switch unit is turned on; wherein, the first switch control signal is generated according to the drive control signal sent by the vehicle control unit; the vehicle control unit is based on the control command obtained from the man-machine interface or Send the drive control signal according to the remaining battery capacity of the power battery;
  • the high-voltage power management unit controls the second high-voltage switch unit to be turned on, so that the high-voltage generator is turned on supplying power to the drive motor; or, in response to the second high-voltage switch unit being turned on and the high-voltage generator being faulty, the high-voltage power management unit controls the first high-voltage switch unit to be turned on, so that all The power battery supplies power to the drive motor.
  • FIG. 1 is a schematic structural diagram of a power distribution system provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a control method of a power distribution system provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of another power distribution system provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another power distribution system provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a power distribution system provided by an embodiment of the present application.
  • the power distribution system 100 provided by this embodiment includes: a high-voltage power distribution device 10 ; the high-voltage power distribution device 10 includes a first high-voltage power distribution device 10
  • the switch unit 11, the second high voltage switch unit 12 and the high voltage power management unit 13; the control terminal of the first high voltage switch unit 11 and the control terminal of the second high voltage switch unit 12 are respectively connected to the high voltage power management unit 13, and the first high voltage switch unit
  • the first end of 11 is connected to the power battery 20, the second end of the first high voltage switch unit 11 is electrically connected to the drive motor 30, the first end of the second high voltage switch unit 12 is connected to the high voltage generator 40, and the second high voltage switch unit
  • the second end of 12 is connected to the drive motor 30;
  • the high-voltage power management unit 13 is configured to send a first switch control signal to the control end of the first high-voltage switch unit 11 or the control end of the second high-volt
  • the high-voltage power management unit 13 is configured to send the first switch control signal to the control terminal of the first high-voltage switch unit 11 to control the first high-voltage switch unit 11 to be turned on, or to send the first switch control signal to the control terminal of the first high-voltage switch unit 11 .
  • the control terminal of the second high voltage switch unit 12 is used to control the conduction of the second high voltage switch unit 12 .
  • FIG. 2 is a flowchart of a control method of a power distribution system provided by an embodiment of the present application.
  • the control method of a power distribution system provided by an embodiment of the present application is implemented by using the power distribution system described above. As shown in FIG. 2 , this The control method of the power distribution system provided by the application embodiment includes:
  • Step 110 During the vehicle startup stage, the high-voltage power management unit sends a first switch control signal to the control terminal of the first high-voltage switch unit or the control terminal of the second high-voltage switch unit to control the first high-voltage switch unit or the second high-voltage switch The unit is turned on.
  • the first switch control signal is generated according to the drive control signal sent by the vehicle control unit; the vehicle control unit sends the drive control signal according to the control command obtained from the man-machine interface or according to the remaining battery capacity of the power battery.
  • the vehicle control unit 50 monitors the man-machine interface 60 , the power battery 20 , the high-voltage generator 40 and the high-voltage power management unit 13 in real time.
  • the vehicle control unit 50, the man-machine interface 60, the power battery 20, the high-voltage generator 40, and the high-voltage power management unit 13 can communicate with each other through CAN (Controller Area Network) communication, for example. transmission.
  • CAN Controller Area Network
  • both the first high-voltage switch unit 11 and the second high-voltage switch unit 12 may include, for example, a high-voltage relay, a contactor, an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) and the like.
  • the first high-voltage switch unit 11 and the second high-voltage switch unit 12 include but are not limited to the above examples, and those skilled in the art can select them according to the integration scheme and location of a specific vehicle model.
  • the vehicle also includes a battery management module (BMS) and a motor controller (not shown in FIG. 1 ).
  • BMS battery management module
  • the BMS can monitor the charging and discharging status of the power battery 20 in real time, and feed this status back to the vehicle through CAN communication.
  • the control unit 50; the motor controller can monitor the output voltage and current of the high-voltage generator 40 in real time, and feed back the output voltage and current to the vehicle control unit 50 through CAN communication.
  • the vehicle control unit 50 selects the high-voltage power supply mode. For example, firstly, the power battery 20 is selected as the high-voltage power supply at the start-up stage of the whole vehicle.
  • the vehicle control unit 50 selects the high-voltage generator 40 as the high-voltage power supply in the vehicle startup phase. For example, when the remaining battery capacity of the power battery 20 is relatively large, the vehicle control unit 50 can send a driving control signal to the high-voltage power management unit 13 based on this condition. After receiving the driving control signal, the high-voltage power management unit 13 sends the first switch control signal.
  • the signal is sent to the control terminal of the first high-voltage switch unit 11, the first high-voltage switch unit 11 is turned on, and the power battery 20 provides power for the load, such as the drive motor 30, to complete the high-voltage power-on function of the entire vehicle.
  • the power battery 20 provides power for the load, such as the drive motor 30, to complete the high-voltage power-on function of the entire vehicle.
  • the vehicle control unit 50 starts the engine and sends a drive control signal to the high-voltage power management unit 13.
  • the high-voltage power management unit 13 After receiving the drive control signal, the high-voltage power management unit 13 sends the first switch control signal to the control terminal of the second high-voltage switch unit 12, the second high-voltage switch unit 12 is turned on, and the high-voltage generator 40 provides power for the load, and the completion of Vehicle high voltage power-on function.
  • the high-voltage power management unit 13 selects a specific loop and sequence for closing the high-voltage switch unit according to the driving control signal sent by the vehicle control unit 50 and the voltage value fed back by the load such as the driving motor 30, and the sequence includes pre-charging control. Wait.
  • each high-voltage switch unit is also connected in parallel with a switch unit, and this switch unit is connected in series with a large resistor to alleviate the damage to the load caused by the inrush current in the initial stage of power-on of the whole vehicle.
  • Step 120 During the vehicle driving stage, when the first high-voltage switch unit is turned on and the power battery fails, the high-voltage power management unit controls the second high-voltage switch unit to be turned on, so that the high-voltage generator supplies power to the drive motor; or, When the second high-voltage switch unit is turned on and the high-voltage generator fails, the high-voltage power management unit controls the first high-voltage switch unit to be turned on, so that the power battery supplies power to the drive motor.
  • the power battery 20 provides electrical energy for the load.
  • the BMS reports this information to the high-voltage power management unit.
  • the high-voltage power management unit 13 urgently cuts off the first high-voltage switch unit 11 of the faulty circuit according to the communication message, and reports the switching state of the vehicle control unit 50.
  • the vehicle control unit 50 starts the replacement high-voltage generator 40 through the communication command, At the same time, a drive control signal is sent to the high-voltage power management unit 13, and the high-voltage power management unit 13 sends a first switch control signal to the second high-voltage switch unit 12 based on the drive control signal, so that the second high-voltage switch unit 12 is turned on, so that the high-voltage generator is turned on.
  • 40 provides electrical energy for the load, and realizes the emergency switching of the high-voltage power supply during driving. Or, when the whole vehicle is running, the high-voltage generator 40 provides electrical energy for the load.
  • the motor controller reports the information to the high-voltage power management unit 13, and the high-voltage power supply
  • the power management unit 13 urgently cuts off the second high-voltage switch unit 12 of the faulty circuit according to the communication message, and reports the switching state of the vehicle control unit 50.
  • the vehicle control unit 50 starts the replacement power battery 20 through the communication command, and at the same time, the high-voltage power supply is switched on.
  • the management unit 13 sends a drive control signal, and the high-voltage power management unit 13 sends a first switch control signal to the first high-voltage switch unit 11 based on the drive control signal, so that the first high-voltage switch unit 11 is turned on, so that the power battery 20 provides power for the load , to realize the emergency switching of the high-voltage power supply during driving.
  • a high-voltage power distribution device includes a first high-voltage switch unit, a second high-voltage switch unit, and a high-voltage power management unit;
  • the battery remaining capacity of the power battery or the user-specified high-voltage power supply mode selects whether the power battery provides energy for the load (the first high-voltage switch unit is turned on and the second high-voltage switch unit is off) or the high-voltage generator provides energy (at this time
  • the second high-voltage switch unit is turned on, and the first high-voltage switch unit is off
  • the high-voltage power distribution device switches to the other high-voltage power supply unit in time,
  • the high-voltage power distribution device can effectively ensure the conduction and disconnection of any high-voltage power supply transmission path, realize the emergency switching of the high-voltage power supply during the driving process, and ensure that the two
  • FIG. 3 is a schematic structural diagram of another power distribution system provided by an embodiment of the present application.
  • the power distribution system 100 provided by an embodiment of the present application further includes a low-voltage power distribution device 70;
  • the power distribution device 70 includes: a low-voltage power management unit 71 and a low-voltage switch unit 72; the control end of the low-voltage switch unit 72 is connected to the low-voltage power management unit 71, and the first end of the low-voltage switch unit 72 is connected to the first end of the low-voltage battery 80,
  • the second end of the low voltage switch unit 72 is connected to the power supply end of the first high voltage switch unit 11 and the power supply end of the second high voltage switch unit 12 respectively;
  • the second end of the low voltage battery 80 is connected to the first end of the voltage conversion unit 90, and the voltage
  • the second end of the conversion unit 90 is connected to the second end of the first high-voltage switch unit 11 and the second end of the second high-voltage switch unit 12 respectively;
  • the low-voltage power management unit 71 is also configured to generate a power-supply signal to the vehicle control unit 50 based on the power loss signal sent by the battery sensor 91 when the vehicle is in a high-voltage power-off state, so that the vehicle control unit 50 controls
  • the high-voltage power management unit 13 sends the first switch control signal, so that the high-voltage generator 40 or the power battery 20 provides electrical energy for the voltage conversion unit 90 to charge the low-voltage battery 80 .
  • the control method of the power distribution system further includes: in the starting stage of the whole vehicle, the low-voltage power management unit sends a second switch control signal to the control terminal of the low-voltage switch unit to control the low-voltage switch unit to be turned on, so as to The low-voltage battery is used to provide power for the first high-voltage switch unit or the second high-voltage switch unit; wherein, the second switch control signal is generated according to the drive control signal sent by the vehicle control unit.
  • the low-voltage power management unit When the whole vehicle is in the high-voltage power-off stage, the low-voltage power management unit generates a supplementary power signal based on the power loss signal sent by the battery sensor to the vehicle control unit, so that the vehicle control unit controls the high-voltage power management unit to send the first switch control signal, and then Make the high-voltage generator or power battery provide power for the voltage conversion unit to charge the low-voltage battery.
  • the voltage conversion unit 90 may include, for example, a step-down DC/DC converter.
  • the low-voltage switch unit 72 may include, for example, a transistor or a MOS transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), etc., which can be integrated on the circuit board with a switch function unit.
  • MOS transistor Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET
  • the low-voltage power management unit 71 closes the low-voltage switch unit 72 according to the control instruction of the vehicle control unit 50, so that the 12V power of the low-voltage battery 80 is transmitted to the first high-voltage switch unit 11 and the second high-voltage switch unit 11.
  • the switch unit 12 ensures that the 12V power supply required by the first high voltage switch unit 11 and the second high voltage switch unit 12 is normal and meets the working conditions of the first high voltage switch unit 11 and the second high voltage switch unit 12 .
  • the low-voltage power management unit 71 may indirectly control the forced disconnection of the first high-voltage switch unit 11 and the second high-voltage switch unit 12 .
  • the low-voltage power management unit 71 When the whole vehicle is in a high-voltage power-off state, such as when the key door is IG ON or the vehicle is powered off and dormant, in order to prevent the low-voltage battery from being too low to affect its life, the low-voltage power management unit 71 periodically monitors the state of the low-voltage battery 80 through the battery sensor 91. And monitor the status of the low-voltage battery 80 reported by the battery sensor 91 through the LIN (Local Interconnect Network) line, when it is found that the remaining battery power of the low-voltage battery 80 is insufficient, the low-voltage power management unit 71 sends the high-voltage compensation to the vehicle control unit 50 through the CAN line.
  • LIN Local Interconnect Network
  • the vehicle control unit 50 selects a suitable high-voltage power supply mode according to the state of the power battery, the engine and the high-voltage generator, and sends a drive control signal to the high-voltage power management unit 13, so that the high-voltage power management unit 13 closes the first high-voltage switch
  • the unit 11 or the second high-voltage switch unit 12 and at the same time, the voltage conversion unit 90 is activated to supplement the low-voltage battery 80 .
  • the high-voltage power distribution device by integrating the high-voltage power distribution device with the low-voltage power distribution device, the probability of the failure of the high-voltage power supply caused by the failure of the low-voltage power distribution device is reduced.
  • the low-voltage power distribution device can monitor the remaining power of the low-voltage battery in real time, and when an abnormality is found, the high-voltage power distribution device can close the high-voltage power supply transmission path, coordinate the voltage conversion unit to output 12V, and prolong the life of the low-voltage battery.
  • FIG. 4 is a schematic structural diagram of another power distribution system provided by an embodiment of the present application.
  • the power distribution system 100 provided by an embodiment of the present application further includes a first voltage detection point M1, The second voltage detection point M2 and the third voltage detection point M3;
  • the first voltage detection point M1 is located between the first high voltage switch unit 11 and the power battery 20 ;
  • the second voltage detection point M2 is located at the second voltage detection point of the first high voltage switch unit 11 terminal and the second terminal of the second high-voltage switch unit 12 and the drive motor 30;
  • the third voltage detection point M3 is located between the second high-voltage switch unit 12 and the high-voltage generator 40;
  • the high-voltage power management unit 13 is also set to collect The voltages of the first voltage detection point M1, the second voltage detection point M2 and the third voltage detection point M3.
  • control method of the power distribution system further includes:
  • the high-voltage power management unit collects the voltages of the first voltage detection point, the second voltage detection point and the third voltage detection point respectively, and determines when the first voltage detection point, the second voltage detection point and the third voltage When at least one of the voltages of the detection points exceeds the preset voltage, the first alarm information is sent to the vehicle control unit.
  • the high-voltage power management unit 13 determines the actual state of the high-voltage switch by collecting the voltage values of the first voltage detection point M1, the second voltage detection point M2 and the third voltage detection point M3, that is, to determine the first voltage detection point. Whether the first high-voltage switch unit 11 and the second high-voltage switch unit 12 have completed the closing action is reported to the vehicle control unit 50. At this time, the vehicle control unit 50 can determine that the high-voltage power supply is ready to be powered on.
  • the high-voltage power management unit 13 collects the first voltage detection point M1, the second voltage detection point M2 and the The voltage value of the third voltage detection point M3 is used to determine the actual state of the high-voltage switch, that is, to determine whether the first high-voltage switch unit 11 and the second high-voltage switch unit 12 have completed the closing action, that is, whether the switching is successful, and report it to the vehicle control unit 50 , at this time the vehicle control unit 50 can determine that the high-voltage power supply is ready to be powered on.
  • the power distribution system can monitor the risk of electrification of the high-voltage circuit in the following multiple intervals, for example, referring to FIG. Point M1), the interval between the high-voltage generator 40 and the high-voltage power distribution device 10 (the third voltage detection point M3), the interval between the driving motor 30 and the high-voltage power distribution device 10, and the interval between the voltage conversion unit 90 and the high-voltage power distribution device 10 (the second voltage detection point M2).
  • the first alarm information will be sent to the man-machine interface 60 to remind maintenance personnel to avoid electric shock accidents.
  • high-voltage detection is implemented during vehicle maintenance, that is, the voltage detection point in the high-voltage power distribution device is used to effectively determine whether the high-voltage power transmission path is live. Maintenance efficiency.
  • the power distribution system 100 provided by this embodiment of the present application further includes a first temperature detection point T1, a second temperature detection point T2 and a third temperature detection point T3;
  • the first temperature detection point T1 It is located between the first high voltage switch unit 11 and the power battery 20;
  • the second temperature detection point T2 is located between the second end of the first high voltage switch unit 11 and the second end of the second high voltage switch unit 12 and the drive motor 30;
  • the three temperature detection points T3 are located between the second high-voltage switch unit 12 and the high-voltage generator 40; the high-voltage power management unit 13 is also used to collect the first temperature detection point T1, the second temperature detection point T2 and the third temperature detection point T3 respectively temperature.
  • control method of the power distribution system further includes:
  • the high-voltage power management unit collects the temperatures of the first temperature detection point, the second temperature detection point and the third temperature detection point respectively in real time, and determines when the temperature of the first temperature detection point, the second temperature detection point and the third temperature detection point is in the temperature range. When at least one of the temperatures exceeds the preset temperature, a second alarm message is sent to the vehicle control unit.
  • the high-voltage power management unit 13 determines whether there is a risk of thermal runaway in the power distribution system 100 and the external branch by collecting the temperature values of the first temperature detection point T1, the second temperature detection point T2 and the third temperature detection point T3, Timely reporting (ie, sending the second alarm information) to the vehicle control unit 50 or disconnecting the corresponding high-voltage switch by itself, further improving the safety of vehicle power supply.
  • the embodiments of the present application also provide a new energy vehicle.
  • the new energy vehicle provided by the embodiment of the present application includes the man-machine interface, the vehicle control unit, the power battery, the high-voltage generator, the drive motor, and the power distribution system described in the above embodiments, wherein the vehicle control unit is respectively connected with the man-machine interface. , high-voltage generator, power battery and power distribution system connection; power distribution system is connected with the drive motor. Therefore, the new energy vehicle provided by the embodiments of the present application also has the beneficial effects described in the above embodiments, which will not be repeated here.
  • Embodiments of the present application provide a power distribution system, a control method for the power distribution system, and a new energy vehicle, so as to cope with the situation in which the power distribution system cannot support the coordinated work of two sets of high-voltage power supply systems in the related art.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un système de distribution de puissance, un procédé de commande pour un système de distribution de puissance et un véhicule à énergie nouvelle. Le système de distribution de puissance comprend : un appareil de distribution de puissance à haute tension, l'appareil de distribution de puissance à haute tension comprenant une première unité de commutation à haute tension, une seconde unité de commutation à haute tension et une unité de gestion d'alimentation électrique à haute tension, une extrémité de commande de la première unité de commutation à haute tension et une extrémité de commande de la seconde unité de commutation à haute tension étant connectées à l'unité de gestion d'alimentation électrique à haute tension, une première extrémité de la première unité de commutation à haute tension étant connectée à une batterie d'alimentation, une première extrémité de la seconde unité de commutation à haute tension étant connectée à un générateur à haute tension, et une seconde extrémité de la première unité de commutation à haute tension et une seconde extrémité de la seconde unité de commutation à haute tension étant connectées à un moteur électrique d'entraînement ; et l'unité de gestion d'alimentation électrique à haute tension est configurée pour envoyer un premier signal de commande de commutation à l'extrémité de commande de la première unité de commutation à haute tension ou à l'extrémité de commande de la seconde unité de commutation à haute tension, de manière à commander la mise en marche de la première unité de commutation à haute tension ou de la seconde unité de commutation à haute tension. Le premier signal de commande de commutation est généré en fonction d'un signal de commande de conduite envoyé par une unité de commande de véhicule.
PCT/CN2021/135938 2021-02-07 2021-12-07 Système de distribution de puissance, procédé de commande pour système de distribution de puissance et véhicule à énergie nouvelle Ceased WO2022166364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110169166.6A CN112895902B (zh) 2021-02-07 2021-02-07 一种配电系统、配电系统的控制方法及新能源汽车
CN202110169166.6 2021-02-07

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WO2022166364A1 true WO2022166364A1 (fr) 2022-08-11

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