WO2023039844A1 - 一种车辆启动方法、电源及车辆 - Google Patents

一种车辆启动方法、电源及车辆 Download PDF

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Publication number
WO2023039844A1
WO2023039844A1 PCT/CN2021/119109 CN2021119109W WO2023039844A1 WO 2023039844 A1 WO2023039844 A1 WO 2023039844A1 CN 2021119109 W CN2021119109 W CN 2021119109W WO 2023039844 A1 WO2023039844 A1 WO 2023039844A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
battery
voltage
power supply
low
Prior art date
Application number
PCT/CN2021/119109
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English (en)
French (fr)
Inventor
孙坚
王辉
杨露露
宋天助
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2021/119109 priority Critical patent/WO2023039844A1/zh
Priority to CN202180008673.XA priority patent/CN116210132A/zh
Priority to EP21957128.8A priority patent/EP4389533A4/en
Publication of WO2023039844A1 publication Critical patent/WO2023039844A1/zh
Priority to US18/607,370 priority patent/US20240217364A1/en

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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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • 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
    • B60R16/03—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
    • B60R16/033—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 characterised by the use of electrical cells or batteries
    • 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
    • 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
    • B60R16/06—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 removing electrostatic charges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present application relates to the technical field of electric vehicles, in particular to a method for starting a vehicle, a power supply and a vehicle.
  • the controller cannot work because it cannot obtain enough low-voltage electric energy.
  • the vehicle's doors, front and rear covers, and other parts that use electronically controlled locks cannot be opened by the electronic key. If the vehicle is equipped with a mechanical key, you can use the mechanical key to open the door and the front and rear covers, and then use special tools to remove the protection and hide multiple parts of the on-board low-voltage battery, so that the positive and negative poles of the on-board low-voltage battery are exposed.
  • the vehicle is not equipped with a mechanical key, it is necessary to use a special tool to open the door and the front and rear covers, and remove the protective and hidden parts of the vehicle low-voltage battery to expose the positive and negative terminals of the vehicle low-voltage battery. Finally, connect the positive and negative poles of the emergency power supply to the positive and negative poles of the on-board low-voltage battery, and provide low-voltage power to the vehicle through the emergency power supply to start the vehicle.
  • the present application provides a method for starting a vehicle, a power source and a vehicle, so as to provide electric energy required for starting the vehicle to start the vehicle when the first battery of the vehicle is exhausted and cannot start the vehicle.
  • the first aspect of the present application provides a method for starting a vehicle, including: acquiring a voltage of a first battery of the vehicle; and controlling a second battery of an external power supply to supply power to the vehicle when the voltage of the first battery is lower than a first voltage threshold. Therefore, it is possible to determine whether the first battery is low by obtaining the voltage of the first battery of the vehicle, and after determining that the first battery is low, the second battery of the external power supply can provide the electric energy required for starting the vehicle to start the vehicle .
  • controlling the second battery of the external power supply to supply power to the vehicle specifically includes: controlling the second battery to supply power to the vehicle through the first circuit; wherein, the maximum operating current allowed by the first circuit is the first current threshold.
  • overload protection can be provided through the first circuit, so as to avoid damage to electronic components such as the controller in the vehicle due to excessive current.
  • the method further includes: when the voltage of the first battery is higher than the second voltage threshold, controlling the second battery to stop supplying power to the vehicle. Since the controller in the vehicle will control the high-voltage battery in the vehicle to charge the first battery after the vehicle is started, it can be determined that the high-voltage battery starts to charge the first battery when it is detected that the voltage of the first battery is higher than the second voltage threshold , the vehicle has been started, so the second battery can be controlled to stop supplying power, so as to save the electric energy of the second battery.
  • controlling the second battery to stop supplying power to the vehicle specifically includes: controlling an external power supply to be connected to the vehicle through the second circuit; wherein the maximum operating current allowed by the second circuit is the second current threshold. Therefore, when the second battery stops supplying power and it is not necessary to set the current value of the overload protection at the first current threshold, switch back to the second circuit to switch the current value of the overload protection to the second current threshold for other functions Provide overload protection for the corresponding current.
  • the method before acquiring the voltage of the first battery of the vehicle, the method further includes: controlling the external power supply to be connected to the vehicle through the second circuit. Therefore, before obtaining the voltage of the first battery, the overload protection can be provided by the second circuit; when the second battery is required to supply power to the vehicle, the overload protection can be provided by the first circuit; when the second battery stops supplying power to the vehicle, Then switch back to the second circuit to provide overload protection. In this way, the overload protection of the corresponding current can be switched as required, so as to provide matching overload protection for related electronic components in the vehicle.
  • the method further includes: acquiring the voltage of the second battery, and controlling the vehicle to charge the second battery when the voltage of the second battery is lower than a third voltage threshold. Therefore, when the voltage of the second battery is lower than the third voltage threshold, it can be determined that the second battery is in a power-deficient state, and the second battery cannot provide enough electric energy for the next start of the vehicle. Therefore, the second battery can be charged by the vehicle, so that the second battery can provide sufficient electric energy when the user uses an external power source to start the vehicle next time.
  • controlling the vehicle to charge the second battery specifically includes: controlling the vehicle to charge the second battery through the first circuit.
  • overload protection can be provided through the first circuit, so as to avoid damage to related electronic components due to excessive current.
  • the method further includes: generating first prompt information according to the voltage of the second battery, and when the voltage of the second battery is lower than the third voltage threshold,
  • the first prompt information includes information for indicating that the second battery is low in power. In this way, it is convenient for the user to obtain the power information of the second battery, and the user is reminded when the power of the second battery is insufficient, thereby improving user experience.
  • the method further includes: generating second prompt information according to the voltage of the first battery, when the voltage of the first battery is higher than the first voltage threshold , the second prompt information includes information indicating that the first battery is normal. In this way, it can help the user to determine that the electric quantity of the first battery is sufficient to start the vehicle, and the user needs to detect whether there are other faults that prevent the vehicle from starting.
  • the second aspect of the present application provides a power supply, including: a voltage detection unit, the voltage detection unit is used to acquire the voltage of the first battery of the vehicle; a control unit, the control unit is used when the voltage of the first battery is lower than the first voltage threshold , the second battery that controls the power supply supplies power to the vehicle.
  • a voltage detection unit the voltage detection unit is used to acquire the voltage of the first battery of the vehicle
  • a control unit the control unit is used when the voltage of the first battery is lower than the first voltage threshold , the second battery that controls the power supply supplies power to the vehicle.
  • the voltage of the first battery of the vehicle can be obtained by the voltage detection unit to determine whether the first battery is low, and the control unit can control the second battery of the external power supply to provide the vehicle with the required power supply after the first battery is low. power to start the vehicle.
  • controlling the second battery of the power supply to supply power to the vehicle specifically includes: controlling the second battery to supply power to the vehicle through the first circuit; wherein the maximum operating current allowed by the first circuit is the first current threshold.
  • overload protection can be provided through the first circuit, so as to avoid damage to electronic components such as the controller in the vehicle due to excessive current.
  • control unit is further configured to: when the voltage of the first battery is higher than the second voltage threshold, control the second battery to stop supplying power to the vehicle. Since the controller in the vehicle will control the high-voltage battery in the vehicle to charge the first battery after the vehicle is started, it can be determined that the high-voltage battery starts to charge the first battery when it is detected that the voltage of the first battery is higher than the second voltage threshold , the vehicle has been started, so the second battery can be controlled to stop supplying power, so as to save the electric energy of the second battery.
  • controlling the second battery to stop supplying power to the vehicle specifically includes: controlling the power supply to be connected to the vehicle through the second circuit; wherein the maximum operating current allowed by the second circuit is the second current threshold.
  • the control unit before acquiring the voltage of the first battery of the vehicle, is further configured to: control the power supply to be connected to the vehicle through the second circuit. Therefore, before obtaining the voltage of the first battery, the overload protection can be provided by the second circuit; when the second battery is required to supply power to the vehicle, the overload protection can be provided by the first circuit; when the second battery stops supplying power to the vehicle, Then switch back to the second circuit to provide overload protection. In this way, the overload protection of the corresponding current can be switched as required, so as to provide matching overload protection for related electronic components in the vehicle.
  • the voltage detection unit is also used to: acquire the voltage of the second battery; and the control unit is also used to control the vehicle to use the second battery when the voltage of the second battery is lower than the third voltage threshold Charge. Therefore, when the voltage of the second battery is lower than the third voltage threshold, it can be determined that the second battery is in a power-deficient state, and the second battery cannot provide enough electric energy for the next start of the vehicle. Therefore, the second battery can be charged by the vehicle, so that the second battery can provide sufficient electric energy when the user uses an external power source to start the vehicle next time.
  • controlling the vehicle to charge the second battery specifically includes: controlling the vehicle to charge the second battery through the first circuit.
  • overload protection can be provided through the first circuit, so as to avoid damage to related electronic components due to excessive current.
  • the control unit is further configured to: generate first prompt information according to the voltage of the second battery, when the voltage of the second battery is lower than the third voltage threshold , the first prompt information includes information indicating that the second battery is low in power. In this way, it is convenient for the user to obtain the power information of the second battery, and the user is reminded when the power of the second battery is insufficient, thereby improving user experience.
  • the control unit is further configured to: generate second prompt information according to the voltage of the first battery, when the voltage of the first battery is higher than the first When the voltage threshold is reached, the second prompt information includes information indicating that the power of the first battery is normal. In this way, it can help the user to determine that the electric quantity of the first battery is sufficient to start the vehicle, and the user needs to detect whether there are other faults that prevent the vehicle from starting.
  • the method further includes an output unit configured to display or play the first prompt information or the second prompt information.
  • an output unit configured to display or play the first prompt information or the second prompt information.
  • connection unit is further included, and the connection unit is used for connecting with the vehicle.
  • the connection unit is used for connecting with the vehicle.
  • the third aspect of the present application provides a vehicle, including: a first battery, the first battery is connected to at least one controller of the vehicle; a connecting part, the connecting part is connected to the first battery and at least one controller, and the connecting part is also used for connecting External power supply.
  • the external power supply can be connected through the connecting portion, and the external power supply provides electric energy to start the vehicle.
  • the third aspect further includes: a switching unit configured to switch to the first mode under the first condition; in the first mode, the switching unit is configured to make the connecting part pass through the first
  • the circuit is connected to at least one controller; the first condition includes: the voltage of the first battery is lower than the first voltage threshold, or the switching unit receives a first signal, and the first signal is used to control the switching unit to work in the first mode.
  • the first circuit connection controller can be switched through the switching unit.
  • the electric energy can be delivered to the controller through the first circuit, so that the controller can work normally.
  • the switching unit is configured to switch to the second mode under the second condition; in the second mode, the switching unit is configured to connect the connection part to the first battery through the second circuit
  • the second condition includes: the voltage of the first battery is higher than the second voltage threshold, or the switching unit receives a second signal, and the second signal is used to control the switching unit to work in the second mode. Therefore, when the vehicle does not need to be powered by an external power supply to start the vehicle, the switching unit can switch the second circuit to connect to the first battery, so that the second circuit can obtain electric energy from the first battery.
  • the switching unit is configured to switch to the third mode under the third condition; in the third mode, the switching unit is configured to enable the vehicle to supply power to the connection part through the first circuit; the second The three conditions include: the switching unit receives a third signal, and the third signal is used to control the switching unit to work in the third mode.
  • the external power supply can be charged by the vehicle, so that the external power supply can provide sufficient electric energy when the user uses the external power supply to start the vehicle next time.
  • connection part is a cigarette lighter interface of the vehicle, or the connection part is a charging interface of the vehicle.
  • the connection part can reuse the existing interface on the vehicle, and there is no need to re-arrange a special interface.
  • the third aspect further includes: a cover plate, which is arranged in the car of the vehicle or on the outer surface of the vehicle and at the connecting portion, and is used to cover the connecting portion.
  • a cover plate which is arranged in the car of the vehicle or on the outer surface of the vehicle and at the connecting portion, and is used to cover the connecting portion.
  • the cover plate is a vehicle logo provided on the vehicle or a charging interface cover plate of a vehicle-mounted high-voltage battery. Therefore, the vehicle logo or the charging interface cover can be reused, and there is no need to specially provide a cover for the connection part, so as to reduce the production cost and prevent the appearance of the vehicle from being affected by the cover on the outside of the vehicle.
  • a fourth aspect of the present application provides a power supply, including at least one processor and at least one memory, the memory stores program instructions, and when the program instructions are executed by at least one processor, at least one processor performs any possible operation as described in the first aspect. method of implementation.
  • a fifth aspect of the present application provides a computer-readable storage medium, on which program instructions are stored, and when the program instructions are executed by a computer, the computer executes any method that may be implemented in the first aspect.
  • a sixth aspect of the present application provides a computer program product, which includes program instructions, and when the program instructions are executed by a computer, the computer executes any method that may be implemented in the first aspect.
  • FIG. 1 is a schematic diagram of a vehicle involved in an embodiment of the present application
  • Fig. 2 is a schematic diagram of the electrical connection of some devices in the vehicle
  • FIG. 3A is a schematic flow chart of a method for starting a vehicle in an embodiment of the present application
  • FIG. 3B is a schematic structural diagram of an external power supply in an embodiment of the present application.
  • Fig. 4 is a schematic structural diagram of a vehicle in an embodiment of the present application.
  • Fig. 5 is a schematic diagram of starting the vehicle through the emergency power supply in the embodiment of the present application.
  • FIG. 6 is a schematic diagram of the electrical connection of the first electrical connector
  • FIG. 7 is a schematic structural diagram of an emergency power supply in an embodiment of the present application.
  • Fig. 8 is a schematic diagram of the electrical connection inside the emergency power supply in Fig. 7;
  • FIG. 9 is a schematic diagram of the electrical connection between the second electrical connector and the first electrical connector
  • Fig. 10 is a schematic diagram of another emergency power supply provided by the embodiment of the present application to start the vehicle;
  • FIG. 11 is a schematic diagram of the electrical connection of the first electrical connector
  • Figure 12 is a schematic diagram of the electrical connection inside the emergency power supply
  • 13 is a schematic diagram of the electrical connection between the second electrical connector and the first electrical connector
  • FIG. 14A is a part of the flowchart of the control method of the emergency power supply in the embodiment of the present application.
  • Fig. 14B is another part of the flow chart of the control method of the emergency power supply in the embodiment of the present application.
  • Fig. 15 is a schematic structural diagram of a computing device provided by an embodiment of the present application.
  • one solution is to use a special tool to open the front hatch of the vehicle in a special way, and remove the cover that blocks the on-board low-voltage battery. , connect the positive pole of the external power supply to the positive pole of the vehicle low-voltage battery, connect the negative pole of the external power supply to the negative pole of the vehicle low-voltage battery, or connect the negative pole of the external power supply to the vehicle body when the negative pole of the vehicle low-voltage battery is not exposed. Then open the door with the mechanical key, enter the car and start the car.
  • this method of electrification requires special tools to complete the disassembly, and the disassembly process and the process of electrification are very cumbersome and complicated. If the operation is wrong, it may cause damage to the internal components of the car, and it needs to be trained. Professionals operate.
  • the on-board low-voltage battery does not have a special bonding device. Iron clamps are usually used to clamp and fix the battery when connecting to electricity. It is easy to cause ignition due to poor connection, and there is a risk of electric shock or fire.
  • Another solution is to set up the power supply function, that is, when the vehicle is in a stationary state, wake up the vehicle regularly through the T-BOX (Telematics Box, vehicle communication terminal), check the power status of the low-voltage battery on the vehicle, and use the VCU (Vehicle Control Unit, vehicle Control unit) judges whether the vehicle status meets the power supply conditions, and if so, wakes up BMS (Battery Management System, battery management system), PDU (Power Distribution Unit, power distribution unit) and other related components, and the on-board high-voltage battery in the vehicle (also known as power battery) provides high-voltage direct current, and converts high-voltage direct current into low-voltage direct current through the DC/DC (Direct Current/Direct Current, direct current converter) module inside the PDU to charge the vehicle's low-voltage battery to avoid vehicle low-voltage battery loss electricity.
  • BMS Battery Management System
  • PDU Power Distribution Unit, power distribution unit
  • DC/DC Direct Current/Direct Current, direct current converter
  • the VCU will first determine whether the SOC (State of Charge) of the vehicle’s high-voltage battery meets the requirements. For example, if the SOC is less than 15%, the power replenishment function cannot be activated. Therefore, after the vehicle is stationary for a long time, the on-board low-voltage battery still has the risk of power loss.
  • the power replenishment function involves the coordinated work of multiple components. If there is a deviation in one of the links, the expected effect will not be achieved, which will affect the reliability of the power replenishment function, and the vehicle's low-voltage battery will still have the risk of power loss.
  • the application provides a method for starting a vehicle with an external power supply, a power supply and a vehicle.
  • the vehicle When the vehicle is in a power-deficit state and cannot be started, it provides the electric energy required for starting the vehicle to start the external power supply of the vehicle.
  • FIG. 1 is a schematic diagram of a vehicle 10 involved in an embodiment of the present application.
  • the vehicle 10 is provided with an on-board low-voltage battery 110 (corresponding to the first battery), an on-board high-voltage battery 120 , a low-voltage bus 130 , and controllers 140 such as VCU141 , PDU142 , and BMS143 .
  • the vehicle 10 in the present application can be a pure electric vehicle or a hybrid vehicle in an electric vehicle, and can be any one of different types of vehicles such as a car, a truck, a passenger car, and an SUV (sport utility vehicle, sports utility vehicle).
  • the vehicle 10 can also be a tricycle, motorcycle, train or other land transportation device for carrying people or goods.
  • FIG. 2 is a schematic diagram of electrical connection of some devices in the vehicle 10 , showing the electrical connection relationship of the internal devices of the vehicle 10 in FIG. 1 .
  • the positive and negative poles of the vehicle-mounted low-voltage battery 110 are electrically connected to the positive and negative low-voltage lines of the low-voltage bus 130 respectively, and controllers 140 such as VCU141, PDU142, and BMS143 are electrically connected to the low-voltage bus 130 through low-voltage lines, and VCU141 , PDU142, BMS143 and other controllers 140 need to obtain, for example, 9V-16V low-voltage power to work normally, and the vehicle-mounted low-voltage battery 110 can provide, for example, 9V-16V low-voltage power for VCU141, PDU142, BMS143 and other controllers 140 through the low-voltage bus 130, so that The controller 140 can work normally.
  • the vehicle-mounted high-voltage battery 120 is used to provide high-voltage power such as 300V to 800V for the high-voltage system such as the drive system of the vehicle 10.
  • the PDU 142 can be electrically connected to the vehicle-mounted high-voltage battery 120 through a high-voltage line, and is used to provide charging and discharging for the high-voltage system in the vehicle 10. Control, power-on control of high-voltage components, circuit overload and short-circuit protection, high-voltage sampling and other functions are used to protect and monitor the operation of high-voltage systems.
  • a DC/DC module is also provided in the PDU 142 , and the DC/DC module can convert the high-voltage electricity provided by the high-voltage battery into low-voltage electricity such as 13.5V, so as to charge the vehicle-mounted low-voltage battery 110 .
  • the BMS143 is a safe control system for protecting the vehicle-mounted high-voltage battery 120. It can monitor the vehicle-mounted high-voltage battery 120 in real time, control the charging and discharging of the vehicle-mounted high-voltage battery 120, and avoid excessive charging and discharging.
  • VCU141 is the core electronic control device to realize the vehicle control decision. The VCU141 is electrically connected to controllers 140 such as the PDU142 and the BMS143 through signal wires, so as to be able to control the PDU142 and the BMS143.
  • controllers 140 such as VCU 141 , PDU 142 , and BMS 143 cannot work normally because they cannot obtain enough low-voltage power from the on-board low-voltage battery 110 .
  • the electronically controlled door locks of the doors and tailgate of the vehicle 10 cannot work, and the user cannot enter the cockpit. Even if the door is opened by the mechanical key to enter the cockpit, the vehicle 10 still cannot be started. Even if the charging interface 170 of the vehicle 10 is connected to the charging pile, the charging of the vehicle 10 cannot be realized because the controllers 140 such as the VCU 141 , the PDU 142 , and the BMS 143 cannot work.
  • the present application proposes various embodiments of the vehicle starting method, the external power supply 20 and the vehicle 10 described in detail below, so that the external power supply 20 can provide electric energy to start the vehicle 10 when the vehicle low-voltage battery 110 is depleted.
  • FIG. 3A is a schematic flowchart of a vehicle starting method 100 in an embodiment of the present application.
  • the method 100 shown in FIG. 3A can be executed by, for example, the external power supply 20 or any other suitable device, so as to control the external power supply 20 to supply power to the vehicle 10 to start the vehicle 10 when the first battery 110 is running low.
  • the method 100 includes step S120 and step S130.
  • step S120 the voltage of the first battery 110 of the vehicle 10 is obtained
  • step S130 when the voltage of the first battery 110 is lower than the first voltage threshold, the second battery 220 of the external power supply 20 is controlled to supply power to the vehicle 10 .
  • the second battery 220 of the external power supply 20 can provide the vehicle 10 with the starting voltage. The electrical energy required to start the vehicle 10 .
  • step S130 also includes step S131.
  • controlling the second battery 220 of the external power supply 20 to supply power to the vehicle 10 specifically includes: controlling the second battery 220 to supply power to the vehicle 10 through the first circuit 152a; wherein, the maximum operating current allowed by the first circuit 152a is the first current threshold.
  • the overload protection can be provided by the first circuit 152a, so as to avoid damage to electronic components such as the controller 140 in the vehicle 10 due to excessive current.
  • the method 100 further includes step S140.
  • step S140 when the voltage of the first battery 110 is higher than the second voltage threshold, the second battery 220 is controlled to stop supplying power to the vehicle 10 .
  • the controller 140 in the vehicle 10 will control the high-voltage battery 120 in the vehicle 10 to charge the first battery 110 after the vehicle 10 is started, when it is detected that the voltage of the first battery 110 is higher than the second voltage threshold, it can be determined that the high voltage
  • the storage battery 120 starts to charge the first battery 110 and the vehicle 10 has been started, so the second battery 220 can be controlled to stop supplying power to save the electric energy of the second battery 220 .
  • step S140 also includes step S141.
  • controlling the second battery 220 to stop supplying power to the vehicle 10 specifically includes: controlling the external power supply 20 to connect to the vehicle 10 through the second circuit 152b; wherein, the maximum operating current allowed by the second circuit 152b is the second current threshold.
  • the method 100 further includes step S110.
  • step S110 before acquiring the voltage of the first battery 110 of the vehicle 10 , the external power supply 20 is controlled to be connected to the vehicle 10 through the second circuit 152 b.
  • the overload protection can be provided by the second circuit 152b; when the second battery 220 is required to supply power to the vehicle 10, the overload protection can be provided by the first circuit 152a; when the second battery 220 After the power supply to the vehicle 10 is stopped, it is switched back to the second circuit 152b to provide overload protection.
  • the overload protection of the corresponding current can be switched as required, so as to provide matching overload protection for relevant electronic components in the vehicle 10 .
  • the method 100 further includes step S150.
  • step S150 the voltage of the second battery 220 is obtained, and when the voltage of the second battery 220 is lower than a third voltage threshold, the vehicle 10 is controlled to charge the second battery 220 .
  • the second battery 220 can be charged by the vehicle 10 so that the second battery 220 can provide sufficient electric energy when the user uses the external power supply 20 to start the vehicle 10 next time.
  • step S150 also includes step S151.
  • controlling the vehicle 10 to charge the second battery 220 specifically includes: controlling the vehicle 10 to charge the second battery 220 through the first circuit 152a.
  • overload protection can be provided through the first circuit 152a, so as to avoid damage to related electronic components due to excessive current.
  • the method 100 further includes step S160.
  • step S160 after obtaining the voltage of the second battery 220, the first prompt information is generated according to the voltage of the second battery 220, and when the voltage of the second battery 220 is lower than the third voltage threshold, the first prompt information includes instructions for indicating Information indicating that the second battery 220 is low in power.
  • the method 100 further includes step S170.
  • step S170 after the voltage of the first battery 110 of the vehicle 10 is acquired, second prompt information is generated according to the voltage of the first battery 110.
  • the second prompt information includes Information used to indicate that the power of the first battery 110 is normal.
  • FIG. 3B is a schematic structural diagram of the external power supply 20 in the embodiment of the present application.
  • the external power supply 20 in the embodiment of the present application includes: a voltage detection unit 230, the voltage detection unit 230 is used to obtain the voltage of the first battery 110 of the vehicle 10; a control unit 240, the control unit 240 is used to When the voltage of the first battery 110 is lower than the first voltage threshold, the second battery 220 of the external power supply 20 is controlled to supply power to the vehicle 10 .
  • the voltage of the first battery 110 of the vehicle 10 can be acquired by the voltage detection unit 230 to determine whether the first battery 110 is in a low-power state, and the control unit 240 can control the first battery 110 of the external power supply 20 after determining that the first battery 110 is in a low-power state.
  • the second battery 220 provides the electric energy required by the vehicle 10 to start the vehicle 10 .
  • controlling the second battery 220 of the external power supply 20 to supply power to the vehicle 10 specifically includes: controlling the second battery 220 to supply power to the vehicle 10 through the first circuit 152a; wherein, the maximum operating current allowed by the first circuit 152a is first current threshold.
  • the overload protection can be provided by the first circuit 152a, so as to avoid damage to electronic components such as the controller 140 in the vehicle 10 due to excessive current.
  • control unit 240 is further configured to: when the voltage of the first battery 110 is higher than the second voltage threshold, control the second battery 220 to stop supplying power to the vehicle 10 . Since the controller 140 in the vehicle 10 will control the high-voltage battery 120 in the vehicle 10 to charge the first battery 110 after the vehicle 10 is started, when it is detected that the voltage of the first battery 110 is higher than the second voltage threshold, it can be determined that the high voltage The storage battery 120 starts to charge the first battery 110 and the vehicle 10 has been started, so the second battery 220 can be controlled to stop supplying power to save the electric energy of the second battery 220 .
  • controlling the second battery 220 to stop supplying power to the vehicle 10 specifically includes: controlling the external power supply 20 to connect to the vehicle 10 through the second circuit 152b; wherein, the maximum operating current allowed by the second circuit 152b is the second current threshold . Therefore, when the second battery 220 stops supplying power and it is not necessary to set the current value of the overload protection at the first current threshold, switch back to the second circuit 152b to switch the current value of the overload protection to the second current threshold, as Implement other functions to provide corresponding current overload protection.
  • the control unit 240 before acquiring the voltage of the first battery 110 of the vehicle 10, is further configured to: control the power supply to be connected to the vehicle 10 through the second circuit 152b.
  • the overload protection can be provided by the second circuit 152b; when the second battery 220 is required to supply power to the vehicle 10, the overload protection can be provided by the first circuit 152a; when the second battery 220 After the power supply to the vehicle 10 is stopped, it is switched back to the second circuit 152b to provide overload protection.
  • the overload protection of the corresponding current can be switched as required, so as to provide matching overload protection for relevant electronic components in the vehicle 10 .
  • the voltage detection unit 230 is also used to: obtain the voltage of the second battery 220; the control unit 240 is also used to control the vehicle 10 to be the second battery when the voltage of the second battery 220 is lower than the third voltage threshold. 220 charge.
  • the second battery 220 can be charged by the vehicle 10 so that the second battery 220 can provide sufficient electric energy when the user uses the external power supply 20 to start the vehicle 10 next time.
  • controlling the vehicle 10 to charge the second battery 220 specifically includes: controlling the vehicle 10 to charge the second battery 220 through the first circuit 152a.
  • overload protection can be provided through the first circuit 152a, so as to avoid damage to related electronic components due to excessive current.
  • the control unit 240 is further configured to: generate first prompt information according to the voltage of the second battery 220, when the voltage of the second battery 220 is lower than the third voltage threshold , the first prompt information includes information indicating that the second battery 220 is low in power. In this way, it is convenient for the user to obtain the power information of the second battery 220, and the user is reminded when the power of the second battery 220 is insufficient, thereby improving user experience.
  • the control unit 240 is further configured to: generate a second prompt message according to the voltage of the first battery 110, when the voltage of the first battery 110 is higher than the first When the voltage threshold is reached, the second prompt information includes information indicating that the power of the first battery 110 is normal.
  • the second prompt information includes information indicating that the power of the first battery 110 is normal.
  • an output unit 250 is further included, and the output unit 250 is used for displaying or playing the first prompt information or the second prompt information. Thus, it is convenient for the user to obtain the first information or the second information through the output unit 250 .
  • a connecting unit is also included, and the connecting unit is used for connecting with the vehicle 10 .
  • the connecting unit is used for connecting with the vehicle 10 .
  • FIG. 4 is a schematic structural diagram of a vehicle 10 in an embodiment of the present application.
  • the present application also provides a vehicle 10, including: a first battery 110, the first battery 110 is connected to at least one controller 140 of the vehicle 10; A battery 110 is connected to at least one controller 140 , and the first connection part 151 is also used to connect to an external power source 20 .
  • the external power supply 20 can be connected through the first connecting portion 151 , and the vehicle 10 can be started by providing electric energy through the external power supply 20 .
  • it further includes: a switching unit 152 configured to switch to the first mode under the first condition; in the first mode, the switching unit 152 is configured to make the first connection part 151 pass through the second A circuit 152a is connected to at least one controller 140; the first condition includes: the voltage of the first battery 110 is lower than a first voltage threshold, or the switching unit 152 receives a first signal, and the first signal is used to control the switching unit 152 at the first work in one mode.
  • the first circuit 152 a can be switched to be connected to the controller 140 through the switching unit 152 .
  • the electric energy can be delivered to the controller 140 through the first circuit 152a, so that the controller 140 can work normally.
  • the switching unit 152 is configured to switch to the second mode under the second condition; in the second mode, the switching unit 152 is configured to connect the first connection part 151 to the first battery through the second circuit 152b 110 connected; the second condition includes: the voltage of the first battery 110 is higher than the second voltage threshold, or the switching unit 152 receives a second signal, and the second signal is used to control the switching unit 152 to work in the second mode.
  • the second circuit 152 b can be switched to connect to the first battery 110 through the switching unit 152 , so that the second circuit 152 b can obtain power from the first battery 110 .
  • the switching unit 152 is configured to switch to a third mode under a third condition; in the third mode, the switching unit 152 is configured to enable the vehicle 10 to supply power to the first connection part 151 through the first circuit 152a
  • the third condition includes: the switching unit 152 receives a third signal, and the third signal is used to control the switching unit 152 to work in the third mode.
  • the external power supply 20 can be charged by the vehicle 10 , so that the external power supply 20 can provide sufficient electric energy when the user uses the external power supply 20 to start the vehicle 10 next time.
  • the first connecting portion 151 is a cigarette lighter interface of the vehicle 10 , or, the first connecting portion 151 is a charging interface 170 of the vehicle 10 . In this way, the first connecting part 151 can reuse the existing interfaces on the vehicle 10 , without re-installing special interfaces.
  • it further includes: a cover plate, which is disposed in the car of the vehicle 10 or on the outer surface of the vehicle 10 and at the first connecting portion 151 for covering the first connecting portion 151 .
  • a cover plate which is disposed in the car of the vehicle 10 or on the outer surface of the vehicle 10 and at the first connecting portion 151 for covering the first connecting portion 151 .
  • the cover plate is a vehicle emblem 180 provided on the vehicle 10 or a cover plate of the charging interface 170 of the on-board high-voltage battery of the vehicle 10 .
  • the vehicle logo 180 or the cover plate of the charging interface 170 can be reused, and the cover plate of the first connecting portion 151 is not required to reduce the production cost, and avoid setting the cover plate outside the vehicle 10 from affecting the appearance of the vehicle 10 .
  • FIG. 5 is a schematic diagram of starting the vehicle 10 through the external power supply 20 in the embodiment of the present application.
  • the door cannot be opened by remote control of the car key or fingerprints, and the vehicle 10 cannot be started.
  • access to the cabin of the vehicle 10 can be achieved by opening the doors with a mechanical key.
  • a first electrical connector 150 is provided in the cockpit, for example, on the center console.
  • the cigarette lighter 160 of the vehicle 10 can be inserted into the first electrical connector 150 to be electrically connected with the first electrical connector 150 , that is, the first electrical connector 150 can be a multiplexed cigarette lighter interface in the vehicle 10 .
  • the external power supply 20 in the embodiment of the present application may also be electrically connected to the first electrical connector 150 , and the external power supply 20 provides the vehicle 10 with low-voltage power required for starting.
  • FIG. 6 is a schematic diagram of the electrical connection of the first electrical connector 150 , showing the electrical connection relationship between the first electrical connector 150 on the vehicle 10 in FIG. 5 and other devices in the vehicle 10 .
  • a first electrical connector 150 is added to the vehicle 10 in FIG. 6 , and the first electrical connector 150 includes a first connecting portion 151 and a switching unit 152 .
  • the first connecting portion 151 includes two first power contacts 151a and one first signal contact 151b, and the two first power contacts 151a are respectively electrically connected to the low voltage bus 130 through low voltage lines.
  • the on-board low-voltage battery 110 can output low-voltage power through the first electrical connector 150
  • the external power supply 20 can also provide low-voltage power to the controller 140 through the first electrical connector 150 after being connected to the first electrical connector 150 .
  • the first connection part 151 is electrically connected to the low voltage bus 130 through the switching unit 152 , specifically, the switching unit 152 is connected in series on the low voltage line between the positive pole of the low voltage bus 130 and the first power contact 151 a.
  • the switching unit 152 includes a first circuit 152a, a second circuit 152b, and a switch 152c.
  • the first circuit 152a, the second circuit 152b are connected in parallel and connected in series with the switch 152c between the positive pole of the low-voltage bus 130 and the first power contact 151a.
  • the switch 152c is used to switch the first circuit 152a or the second circuit 152b, which is connected in series between the positive pole of the vehicle-mounted low-voltage battery 110 and the first power contact 151a.
  • changeover switch 152c can be the switch of SPDT form as shown in Figure 6, also can be two switches connected in series with first circuit 152a, second circuit 152b respectively, by two switches pair first
  • the circuit 152a and the second circuit 152b are independently controlled to switch the first circuit 152a or the second circuit 152b connected in series between the positive pole of the vehicle low-voltage battery 110 and the first power contact 151a, which is not limited here.
  • the first circuit 152a and the second circuit 152b can be any type of overload protectors such as air switch, fuse, etc.
  • the specifications of the first circuit 152a and the second circuit 152b are different, and can provide overload protection of two current specifications.
  • a first current threshold for example, when the current exceeds 100A
  • the first circuit 152a is disconnected.
  • the second current threshold for example, when the current exceeds 10A
  • the second circuit 152b is disconnected.
  • the first signal contact 151b can be connected to the switch 152c through a signal line, thus, when the second electrical connector 260 of the external power supply 20 is inserted into the first electrical connector 150, it can be connected through the first signal contact 151b.
  • the switch 152c is switched, so that a control signal can be sent to the switch 152c to switch the first circuit 152a or the second circuit 152b connected in series between the low voltage bus 130 and the first power contact 151a.
  • FIG. 7 is a schematic structural diagram of an external power supply 20 in an embodiment of the present application
  • FIG. 8 is a schematic diagram of electrical connections inside the external power supply 20 in FIG. 7
  • the external power supply 20 may include a main body 210, an external low-voltage battery 220 (equivalent to a second battery), a voltage detection unit 230, a control unit 240, an output unit 250, a second electrical connector 260 and The first power supply line 270 .
  • the second electrical connector 260 has a second connecting portion 261 (equivalent to a connecting unit), and the shape and structure of the second connecting portion 261 are compatible with the shape and structure of the first connecting portion 151 of the first electrical connector 150.
  • the second connecting portion 261 can be inserted into the first connecting portion 151 to achieve a plug-in connection with the first connecting portion 151 .
  • Two second power contacts 261a and a second signal contact 261b are arranged in the second connection part 261. After the second connection part 261 is inserted into the first connection part 151, the second power contact 261a and the second signal contact 261b is in contact with the first power contact 151a and the first signal contact 151b correspondingly, so as to realize the electrical connection between the second connection part 261 and the first connection part 151 .
  • the external low-voltage battery 220, the voltage detection unit 230, the control unit 240, and the output unit 250 can be arranged inside the main body 210, one end of the first power supply line 270 is connected to the main body 210, and the other end is connected to the second electrical connector 260,
  • the connection manner between the first power supply line 270 and the main body 210 and the second electrical connector 260 may be a fixed connection or a detachable connection.
  • the first power supply line 270 is provided with a low-voltage line and a signal line, which can transmit low-voltage electricity through the low-voltage line, and transmit control signals through the signal line.
  • the external low-voltage storage battery 220 is electrically connected to the two second power contacts 261a through a low-voltage line, so that the controller 140 can be supplied with low-voltage electricity through the second connection part 261.
  • the voltage detection unit 230 is electrically connected to the two second power contacts 261a in the second connection part 261 through a low-voltage line.
  • the voltage detection unit 230 can be a voltage sensor, a voltage detector and other equipment for detecting the two second power contacts.
  • the output unit 250 can be a device such as a touch control panel 251 and a speaker 252 arranged on the main body 210 , and can send prompt information in the form of sound, text, picture, animation and the like.
  • the control unit 240 is electrically connected with the external low-voltage storage battery 220, the voltage detection unit 230, and the output unit 250 through signal wires, so that the control unit 240 can send a first control command to the external low-voltage storage battery 220, the voltage detection unit 230, and the output unit 250 to control
  • the external low-voltage storage battery 220, the voltage detection unit 230, and the output unit 250 work.
  • the control unit 240 is also electrically connected to the second signal contact 261b in the second electrical connector 260 through a signal line, so that it can be electrically connected to the switch 152c after the second connection part 261 is inserted into the first connection part 151, so that the control The unit 240 can issue a control instruction to control the switch 152c to switch the first circuit 152a or the second circuit 152b in series between the low-voltage bus 130 and the first power contact 151a of the first connection part 151 .
  • the touch control panel 251 or the control buttons provided on the main body 210 can be operated to send instruction information to the control unit 240 to instruct the control
  • the unit 240 controls the external low-voltage battery 220 to output low-voltage electricity to the vehicle 10 .
  • the voltage detection unit 230 forms a circuit with the vehicle low-voltage battery 110 , and the voltage detection unit 230 can detect the voltage of the vehicle low-voltage battery 110 .
  • the voltage detection unit 230 sends the detected voltage of the on-vehicle low-voltage battery 110 to the control unit 240 , and the control unit 240 can determine that the first electrical connector 150 and the second electrical connector 260 are electrically connected.
  • the control unit 240 may also regard the detected voltage of the on-board low-voltage battery 110 as indication information, and the indication information instructs the control unit 240 to control the external low-voltage battery 220 to output low-voltage power to the vehicle 10 .
  • FIG. 9 is a schematic diagram of the electrical connection between the second electrical connector 260 and the first electrical connector 150 .
  • inserting the second connecting portion 261 into the first connecting portion 151 can electrically connect the second electrical connector 260 to the first electrical connector 150 .
  • the two first power contacts 151a are electrically connected to the two second power contacts 261a, so that the external low-voltage battery 220 can be electrically connected to the controller 140, and the voltage detection unit 230 can be electrically connected to the low-voltage bus 130 , and further electrically connected to the vehicle-mounted low-voltage battery 110 and the controller 140 .
  • the first signal contact 151b is electrically connected to the second signal contact 261b, so that the control unit 240 is electrically connected to the switch 152c.
  • the control unit 240 can control the voltage detection unit 230 to perform the first voltage detection, so as to detect the voltage of the vehicle low-voltage battery 110 , so as to determine the state of the vehicle low-voltage battery 110 .
  • the control unit 240 may control the output unit 250 to send out the first prompt message according to the detection result of the first voltage detection.
  • the first voltage threshold may be, for example, 9V
  • the content of the first prompt message may be that the vehicle-mounted low-voltage storage battery 110 is in a normal state
  • Sufficient low voltage power can be provided for the controller 140 .
  • the vehicle 10 cannot be started normally, it is prompted to check whether the vehicle 10 has other faults.
  • the content of the first prompt message may be to prompt that the vehicle-mounted low-voltage battery 110 is in a power-deficit state and cannot provide enough low-voltage power for the controller 140.
  • the control unit 240 can control the external low-voltage battery 220 to provide low-voltage power to the controller 140, so that the controller 140 can work normally.
  • the controller 140 can charge the vehicle-mounted high-voltage battery 120 through the charging pile.
  • the DC/DC module in the PDU 142 can also convert the high-voltage power provided by the high-voltage battery into low-voltage power such as 13.5V, so as to charge the vehicle-mounted low-voltage battery 110 and provide low-voltage power for the controller 140 .
  • the control unit 240 can control the voltage detection unit 230 to perform a second voltage detection to detect the voltage of the controller 140 to determine whether the controller 140 is working normally.
  • the control unit 240 may control the output unit 250 to send the second prompt message according to the detection result of the second voltage detection.
  • the second voltage threshold may be, for example, 13.5V, and the content of the second prompt information may be to prompt that the vehicle 10 fails to start, and the PDU 142 fails to turn on the vehicle.
  • the high-voltage electricity of the high-voltage battery 120 is converted into low-voltage electricity, which fails to charge the vehicle-mounted low-voltage battery 110 , and fails to provide the low-voltage electricity required for the controller 140 to work, so the vehicle 10 needs to be restarted.
  • the content of the second prompt message may be to prompt that the vehicle 10 is started successfully, and the vehicle 10 is providing electric energy to the vehicle low voltage battery 120. 110 for charging, and the controller 140 works normally.
  • the control unit 240 can also control the voltage detection unit 230 to perform a third voltage detection, so as to detect the state of the external low-voltage storage battery 220 .
  • the control unit 240 may control the output unit 250 to send third prompt information according to the detection result of the third voltage detection.
  • the third voltage detection detects that the voltage of the external low-voltage battery 220 is equal to or higher than the third voltage threshold
  • the content of the third prompt message may be that the external low-voltage battery 220 is normal and can provide enough low-voltage power for starting the vehicle 10 .
  • the content of the third prompt message may be to prompt that the external low-voltage storage battery 220 is in a power-depleted state and cannot provide enough low-voltage power for the vehicle 10 to start. , and prompts to charge the external low-voltage storage battery 220 .
  • the PDU 142 converts the high-voltage electricity of the vehicle-mounted high-voltage battery 120 into low-voltage electricity and sends it to the low-voltage bus 130 .
  • the user can operate the touch control panel 251 or the control keys, etc., so that the control unit 240 can control the second connection part 261 electrically connected to the low-voltage bus 130 to obtain low-voltage power, so as to charge the external low-voltage battery 220 . Therefore, when the user needs to use the external power supply to start the vehicle next time, the external low-voltage storage battery 220 has sufficient electric energy, which is convenient for the user.
  • control unit 240 may also directly control the second connecting portion 261 electrically connected to the low-voltage bus 130 to obtain low-voltage power, so as to charge the external low-voltage battery 220 .
  • the control unit 240 can also determine the electric quantity of the external low-voltage storage battery 220 according to the detection result in the third voltage detection, Furthermore, the number of times that the vehicle 10 can be started is calculated according to the electric quantity of the external low-voltage battery 220 and the electric quantity required for starting the vehicle 10 . Therefore, the content of the third prompt information may also be the number of times the vehicle 10 can be started by the external low-voltage battery 220 .
  • the control unit 240 can also control the switch 152c to connect the first circuit 152a in series between the controller 140 and the first power contact 151a before controlling the external low-voltage battery 220 to deliver low-voltage power to the controller 140, thereby preventing the external low-voltage battery 220
  • the current supplied to the controller 140 is too large, which damages the controller 140 .
  • the control unit 240 can also control the switch 152c to connect the second circuit 152b in series between the vehicle-mounted low-voltage battery 110 and the first power contact 151a after controlling the external low-voltage battery 220 to deliver low-voltage power to the controller 140, so that the After the cigarette holder 160 and other second connectors are inserted into the first electrical connector 150 , the controller 140 is prevented from being damaged by the excessive current delivered to the second connectors by the vehicle-mounted low-voltage battery 110 .
  • another external power supply 20 and the vehicle 10 are provided, so as to be conveniently connected to the vehicle 10 and provide the vehicle 10 with low-voltage power required for starting.
  • FIG. 10 is a schematic diagram of starting the vehicle 10 through another external power supply 20 provided by the embodiment of the present application.
  • the door cannot be opened by remote control of the car key or fingerprints, and the vehicle 10 cannot be started.
  • a first electrical connector 150 is provided on the outside of the vehicle 10 .
  • the first electrical connector 150 can be concealed and arranged at the position covered by the front and rear vehicle logos 180 , or arranged at a position adjacent to the charging interface 170 of the vehicle 10 , and covered and hidden by the cover plate of the charging interface 170 at the same time.
  • the external power supply 20 in the embodiment of the present application can be connected to the first electrical connector 150 , and the low-voltage power required for starting the vehicle 10 can be provided through the external power supply 20 .
  • FIG. 11 is a schematic diagram of the electrical connection of the first electrical connector 150 , showing the electrical connection relationship between the first electrical connector 150 on the vehicle 10 in FIG. 10 and other devices in the vehicle 10 .
  • the first electrical connector 150 includes a first connecting portion 151 and a switching unit 152 .
  • Two first power contacts 151 a are disposed in the first connection part 151 , and the two first power contacts 151 a are electrically connected to the low voltage bus 130 through a low voltage line.
  • the switching unit 152 includes a first circuit 152a, and the first circuit 152a is connected in series between the positive pole of the low-voltage bus 130 and the first power contact 151a.
  • the first circuit 152a can be an air switch or a fuse. When the current exceeds a third current threshold, eg, 100A, the first circuit 152a is disconnected.
  • FIG. 12 is a schematic diagram of electrical connection inside the external power supply 20 , showing the electrical connection relationship between various devices inside the external power supply 20 in FIG. 10 .
  • the external power supply 20 may include a main body 210 , an external low-voltage battery 220 , a voltage detection unit 230 , a control unit 240 , an output unit 250 , a second electrical connector 260 and a second power supply line 270 .
  • One end of the second power supply line 270 is connected to the main body 210, and the other end is connected to the second electrical connector 260. is a detachable connection.
  • the second power supply line 270 is provided with a low-voltage line through which low-voltage power can be transmitted.
  • the voltage detection unit 230, the control unit 240, and the output unit 250 are arranged inside the main body portion 210, and the second electrical connector 260 has a second connection portion 261 whose shape and structure are the same as those of the first connection portion 151.
  • the shape and structure of the second connection part 261 can be inserted into the first connection part 151 to achieve plug-in connection with the first connection part 151 .
  • Two second power contacts 261a are arranged in the second connection part 261. After the second connection part 261 is inserted into the first connection part 151, the two second power contacts 261a are respectively in contact with the two first power contacts 151a. , so as to realize the electrical connection between the second electrical connector 260 and the first electrical connector 150 .
  • the external low-voltage battery 220 can be arranged inside the main body 210 , and the external low-voltage battery 220 is electrically connected to the two second power contacts 261a through a low-voltage line, so as to transmit low-voltage power to the controller 140 through the second electrical connector 260 .
  • the voltage detection unit 230 is electrically connected to the two second power contacts 261a in the second connection part 261 through a low-voltage line.
  • the voltage detection unit 230 can be a voltage sensor, a voltage detector and other equipment for detecting the two second power contacts. The voltage between points 261a.
  • the output unit 250 can be a device such as a touch control panel 251 and a speaker 252 arranged on the second electrical connector 260, and can send prompt information in the form of sound, text, picture, animation, etc.
  • the control unit 240 is electrically connected with the external low-voltage storage battery 220, the voltage detection unit 230, and the output unit 250 through signal wires, so that the control unit 240 can send a first control command to the external low-voltage storage battery 220, the voltage detection unit 230, and the output unit 250 to control
  • the external low-voltage storage battery 220, the voltage detection unit 230, and the output unit 250 work.
  • Fig. 13 is a schematic diagram of the electrical connection between the second electrical connector 260 and the first electrical connector 150, showing the electrical connection relationship between the first electrical connector in Fig. 11 and the second electrical connector in Fig. 12 .
  • inserting the second connecting portion 261 into the first connecting portion 151 can electrically connect the second electrical connector 260 to the first electrical connector 150 .
  • the two first power contacts 151a are electrically connected to the two second power contacts 261a respectively, so that the external low-voltage battery 220 can be electrically connected to the low-voltage bus 130, so that the voltage detection unit 230 can be connected to the vehicle-mounted low-voltage battery 110 and
  • the controller 140 is electrically connected.
  • the external low-voltage battery 220 can be controlled to provide low-voltage power to the controller 140, so that the controller 140 can work normally, and the voltage detection unit 230 can be controlled to perform the first voltage detection, the second voltage detection and the third voltage detection, and the output can be controlled.
  • the unit 250 sends out the first prompt information, the second prompt information and the third prompt information. The specific manner will not be repeated here.
  • the first electrical connector 150 can also reuse the charging interface 170, thereby reducing the number of interfaces, reducing production costs, and facilitating user operations.
  • the first electrical connector 150 may be an independent interface, or may be a multiplexing existing interface on the vehicle 10 . It can be visible from the outside, or invisible through the cover. It can be on the surface of the vehicle body or on the surface of the interior of the cockpit.
  • the voltage detection unit 230 , the control unit 240 , and the output unit 250 may also be disposed in the second electrical connector 260 , which is not limited thereto.
  • the embodiment of the present application also provides a method for controlling the external power supply 20 , which can control the external power supply 20 to provide low voltage power for starting the vehicle 10 .
  • FIG. 14A is a part of the flowchart of the control method 200 of the external power supply 20 in the embodiment of the present application
  • FIG. 14B is another part of the flow chart of the control method 200 of the external power supply 20 in the embodiment of the present application.
  • the specific steps of the control method 200 of the external power supply 20 include:
  • Step S201 performing a third voltage detection, detecting the voltage of the externally connected low-voltage storage battery 220 .
  • the control unit 240 controls the voltage detection unit 230 to perform the third voltage detection to detect the voltage of the external low-voltage storage battery 220 in the external power supply 20 to obtain voltage data of the external low-voltage storage battery 220 .
  • the voltage detection unit 230 can send the detection result to the control unit 240, and the control unit 240 can calculate the electric quantity of the external low-voltage storage battery 220 according to the detection result.
  • Step S202 judging whether the voltage of the external low-voltage storage battery 220 is higher than or equal to a third voltage threshold.
  • the electric quantity of the external low-voltage battery 220 is calculated by the voltage of the external low-voltage battery 220. According to the electric quantity required for starting the vehicle 10, it can be determined that when the voltage of the external low-voltage battery 220 is higher than or equal to the third voltage threshold, sufficient power can be provided for the starting of the vehicle 10. The number of times the vehicle 10 can be started by the power of the external low-voltage storage battery 220 can also be determined. When the voltage of the external low-voltage battery 220 is lower than the third voltage threshold, it can be determined that the external low-voltage battery 220 is in a power-deficit state and cannot provide enough low-voltage power for starting the vehicle 10 .
  • Step S203 prompting that the vehicle 10 can be started.
  • the control unit 240 controls the output unit 250 to send a third prompt message
  • the third prompt message includes: when the voltage of the external low-voltage battery 220 is higher than or equal to the third voltage threshold, prompting that the external low-voltage battery 220 can provide enough power for the vehicle 10 to start.
  • the electric energy indicates that the vehicle 10 can be started.
  • the output unit 250 can issue prompts through the touch control panel 251, speaker 252 and other devices provided on the external power supply 20, and can issue prompt information in the form of sound, text, picture, animation and the like. Therefore, it is convenient for the user to know the state of the external power supply 20 in time, and it is convenient to use.
  • the output unit 250 can also prompt the external power supply 20 for the number of times the vehicle 10 can be started. Thereby, the user can understand the state of the external power supply 20 more clearly, so as to facilitate the use of the user.
  • Step S204 prompting to charge the external low-voltage storage battery 220 .
  • the third prompt information also includes: when the voltage of the external low-voltage battery 220 is lower than the third voltage threshold, the external low-voltage battery 220 cannot provide enough electric energy for the startup of the vehicle 10, and at this time the external low-voltage battery 220 is in a power-deficit state, prompting the user to Connect the low-voltage storage battery 220 to charge.
  • the user can charge the external power supply 20 using a charging device compatible with the external power supply 20 .
  • Step S205 performing a first voltage detection to detect the voltage of the vehicle-mounted low-voltage battery 110 .
  • the control unit 240 can determine that the first electrical connector 150 is electrically connected to the second electrical connector 260 , and can also determine the state of the on-vehicle low-voltage battery 110 according to the obtained voltage of the on-vehicle low-voltage battery 110 .
  • Step S206 judging whether the voltage of the vehicle-mounted low-voltage battery 110 is lower than a first voltage threshold.
  • the vehicle-mounted low-voltage battery 110 When the voltage of the vehicle-mounted low-voltage battery 110 is lower than the first voltage threshold, the vehicle-mounted low-voltage battery 110 is in a power-deficit state; when the voltage of the vehicle-mounted low-voltage battery 110 is equal to or higher than the first voltage threshold, then the vehicle-mounted low-voltage battery 110 is in a normal state , it may be that other faults prevent the vehicle 10 from starting normally.
  • Step S207 prompting that the vehicle-mounted low-voltage battery 110 is in a power-depleted state.
  • the control unit 240 controls the output unit 250 to send the first prompt information
  • the first prompt information includes: when the voltage of the vehicle low-voltage battery 110 is lower than the first voltage threshold, it prompts that the vehicle low-voltage battery 110 is in a power-deficit state, and an external power supply 20 is required to provide low voltage. electricity to start the vehicle 10.
  • Step S208 prompting that the vehicle-mounted low-voltage battery 110 is normal.
  • the first prompt information also includes: when the voltage of the vehicle-mounted low-voltage battery 110 is equal to or higher than the first voltage threshold, prompting that the vehicle-mounted low-voltage battery 110 is in a normal state, and that other faults may prevent the vehicle 10 from starting normally, prompting the user to check other faults.
  • Step S209 receiving a low-voltage electrical output command.
  • the user can click the button on the touch control screen 251, click the physical button on the external power supply 20, or send out instruction information to output low-voltage power through methods such as voice control, gesture control, and remote terminal control, and the control unit 240 can receive the instruction. information.
  • the control unit 240 may be regarded as having received the indication information of outputting low-voltage electricity.
  • Step S210 the switching unit 152 switches to the first circuit 152a.
  • the control unit 240 controls the switch 152c in the switching unit 152 to switch, so that the first circuit 152a is connected in series between the external low-voltage battery 220 and the controller 140 .
  • overload protection can be provided. That is, when the current supplied to the controller 140 is too large, for example greater than 100A, the first circuit 152a is blown to disconnect the external low-voltage battery 220 from the controller 140 . Therefore, it is possible to avoid damage to the controller 140 due to excessive current.
  • Step S211 the external low-voltage battery 220 outputs low-voltage electricity.
  • the control unit 240 sends out a first control command after receiving the instruction to output low-voltage electricity, and controls the external low-voltage battery 220 to output low-voltage electricity to provide electric energy for the controller 140 .
  • Step S212 performing a second voltage detection to detect the voltage of the controller 140 .
  • the control unit 240 controls the voltage detection unit 230 to perform the second voltage detection to detect the voltage of the controller 140 .
  • the voltage detection unit 230 sends the detection result to the control unit 240 , and the control unit 240 can judge the state of the controller 140 according to the detection result.
  • Step S213 judging whether the voltage of the controller 140 is higher than or equal to the second voltage threshold.
  • the control unit 240 can judge the state of the controller 140 according to the detection result.
  • the detection result shows that the voltage of the controller 140 is higher than or equal to the second voltage threshold, it means that the vehicle-mounted high-voltage battery 120 converts the high-voltage electricity under the control of the controller 140
  • the vehicle 10 is started successfully.
  • the controller 140 does not control the vehicle-mounted high-voltage battery 120 to convert the high-voltage power into low-voltage power, which means that the vehicle 10 fails to start.
  • Step S214 prompting that the vehicle 10 is started successfully.
  • the control unit 240 controls the output unit 250 to send out second prompt information
  • the second prompt information includes: when the voltage of the controller 140 in the detection result is higher than or equal to the second voltage threshold, prompting that the vehicle 10 is started successfully.
  • the vehicle-mounted high-voltage battery 120 converts high-voltage electricity into low-voltage electricity under the control of the controller 140, so as to charge the vehicle-mounted low-voltage battery 110 and provide low-voltage power for the controller 140, prompting that the second electrical connector 260 or the second electrical connector 260 The second electrical connector 260 is pulled out from the first electrical connector 150 or the first electrical connector 150 .
  • Step S215 prompting that the vehicle 10 fails to start.
  • the second prompt information further includes: when the voltage of the controller 140 in the detection result is lower than the second voltage threshold, prompting that the vehicle 10 fails to start.
  • the vehicle-mounted high-voltage battery 120 fails to convert the high-voltage power into low-voltage power under the control of the controller 140
  • the vehicle-mounted high-voltage battery 120 fails to charge the vehicle-mounted low-voltage battery 110 and provide low-voltage power for the controller 140 .
  • the control unit 240 again controls the external low-voltage battery 220 to output low-voltage electricity to provide electric energy for starting the vehicle 10 .
  • Step S216 prompting whether to charge the external low-voltage storage battery 220 .
  • the second prompt information further includes: prompting the user whether to charge the external low-voltage storage battery 220 when the voltage of the controller 140 in the detection result is higher than or equal to the second voltage threshold.
  • Step S217 charging the external low-voltage storage battery 220 .
  • control unit 240 can control the external power supply 20 to obtain the low-voltage power of the vehicle 10 through the second connection part 261 , so as to charge the external low-voltage battery 220 .
  • control unit 240 may control the external power supply 20 to obtain the low-voltage power of the vehicle 10 through the second connection part 261 when the voltage of the external low-voltage storage battery 220 is lower than the fourth voltage threshold during the third voltage detection.
  • the external low-voltage storage battery 220 can be charged.
  • the control unit 240 controls the switch 152c in the switching unit 152 to switch, so that the second circuit 152b is connected in series between the low-voltage bus 130 and the first connecting portion 151 .
  • overload protection can be provided. That is, when the current supplied to the cigarette lighter 160 or other devices is too large, for example greater than 10A, the second circuit 152b is disconnected, so as to avoid damage to the cigarette lighter 160 or other devices due to excessive current.
  • the second electrical connector 260 or the second electrical connector 260 can be inserted into the first electrical connector 150 or the first electrical connector 150 on the vehicle 10, and the control unit 240 can control the external low-voltage battery 220 in the external power supply 20 to provide low-voltage power to the controller 140 in the vehicle 10, so that the vehicle 10 can be started.
  • FIG. 15 is a schematic structural diagram of a computing device 300 provided by an embodiment of the present application.
  • the computing device 300 includes: a processor 310 , a memory 320 , and a communication interface 330 .
  • the communication interface 330 in the computing device 300 shown in FIG. 15 can be used to communicate with other devices.
  • the processor 310 may be connected with the memory 320 .
  • the memory 320 can be used to store the program codes and data. Therefore, the memory 320 may be a storage device inside the processor 310, or an external storage device independent of the processor 310, or may include a storage device inside the processor 310 and an external storage device independent of the processor 310. part.
  • the processor 310 may be a central processing unit (central processing unit, CPU).
  • the processor can also be other general-purpose processors, digital signal processors (digital signal processors, DSPs), application specific integrated circuits (application specific integrated circuits, ASICs), field programmable gate arrays (field programmable gate arrays, FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the processor 310 adopts one or more integrated circuits for executing related programs, so as to implement the technical solutions provided by the embodiments of the present application.
  • the memory 320 may include read-only memory and random-access memory, and provides instructions and data to the processor 310 .
  • a portion of processor 310 may also include non-volatile random access memory.
  • processor 310 may also store device type information.
  • the processor 310 executes computer-implemented instructions in the memory 320 to perform the operation steps of the above method.
  • the computing device 300 may correspond to a corresponding body executing the method according to each embodiment of the present application, and the above-mentioned and other operations and/or functions of each module in the computing device 300 are for realizing the present invention For the sake of brevity, the corresponding processes of the methods in the embodiments are not repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the device is only a logical function division. In actual implementation, there may be other division methods.
  • multiple devices or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, devices or indirect coupling or communication connection of devices may be in electrical, mechanical or other forms.
  • the devices described as separate components may or may not be physically separate, and the components displayed as devices may or may not be physical devices, that is, they may be located in one place, or may be distributed to multiple network devices. Part or all of the devices can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional device in each embodiment of the present application may be integrated into one processing device, each device may exist separately physically, or two or more devices may be integrated into one device.
  • the functions are implemented in the form of software function devices and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored.
  • a computer program When the program is executed by a processor, it is used to execute a method for generating a variety of questions.
  • the method includes the methods described in the above-mentioned embodiments. at least one of the options.
  • the computer storage medium in the embodiments of the present application may use any combination of one or more computer-readable media.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more leads, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), Erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.
  • a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
  • a computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .
  • Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
  • Computer program code for performing the operations of the present application may be written in one or more programming languages or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional Procedural Programming Language - such as "C" or a similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as through the Internet using an Internet service provider). connect).
  • LAN local area network
  • WAN wide area network
  • connect such as AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.

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Abstract

一种车辆启动方法、电源及车辆（10），包括：由外接电源（20）获取车辆（10）的第一电池（110）的电压；当第一电池（110）的电压低于第一电压阈值时，控制外接电源（20）的第二电池（220）为车辆（10）供电，以使车辆（10）启动。由此，可以通过获取车辆（10）的第一电池（110）的电压来确定第一电池（110）是否亏电，并且可以在确定第一电池（110）亏电后，通过外接电源（20）的第二电池（220）提供车辆（10）启动所需要的电能，以启动车辆（10）。

Description

一种车辆启动方法、电源及车辆 技术领域
本申请涉及电动汽车技术领域，特别涉及一种车辆启动方法、电源及车辆。
背景技术
随着车辆智能化、电动化的不断发展和演进，越来越多的功能被开发、应用到了车辆中，使得车辆的功能越来越丰富、强大，也使得控制器的数量及性能也逐渐增大。为了能够使车辆的各种功能正常运行，不论车辆是处于行驶状态还是处于熄火状态，都需要车载低压蓄电池(也称为辅助电池)能够持续地提供低压电能。因此，如果车辆处于长期停放的状态，则车辆内的车载低压蓄电池的电量就会逐渐消耗，最终处于亏电(指电池电量低于设定值)状态。当车载低压蓄电池处于亏电状态时，控制器由于无法获得足够的低压电能而无法工作。此时，车辆的车门以及前后盖板等使用了电控锁具的部分，均无法通过电子钥匙打开。如果车辆配有机械钥匙，可以通过机械钥匙打开车门以及前后盖板，然后通过专门的工具拆除保护、隐藏车载低压蓄电池的多个部件，以使车载低压蓄电池的正极、负极露出。如果车辆未配有机械钥匙，需要通过专门的工具打开车门以及前后盖板后，拆除保护、隐藏车载低压蓄电池的多个部件，以使车载低压蓄电池的正极、负极露出。最后将应急电源的正极、负极与车载低压蓄电池的正极、负极连接，通过应急电源为车辆提供低压电，从而启动车辆。
发明内容
本申请提供一种车辆启动方法、电源及车辆，以能够在车辆的第一电池亏电无法启动车辆时，提供车辆启动所需要的电能，以启动车辆。
本申请第一方面提供一种车辆启动方法，包括：获取车辆的第一电池的电压；当第一电池的电压低于第一电压阈值时，控制外接电源的第二电池为车辆供电。由此，可以通过获取车辆第一电池的电压来确定第一电池是否亏电，并且可以在确定第一电池亏电后，通过外接电源的第二电池提供车辆启动所需要的电能，以启动车辆。
作为第一方面一种可能的实现方式，控制外接电源的第二电池为车辆供电，具体包括：控制第二电池通过第一电路为车辆供电；其中，第一电路允许的最大工作电流为第一电流阈值。由此，可以通过第一电路来提供过载保护，避免因电流过大损坏车辆内的控制器等电子元器件。
作为第一方面一种可能的实现方式，还包括：当第一电池的电压高于第二电压阈值时，控制第二电池停止为车辆供电。由于车辆启动后车辆内的控制器会控制车辆内的高压电池为第一电池充电，因此，在检测到第一电池的电压高于第二电压阈值时，可以确定高压电池开始为第一电池充电，车辆已经启动完成，因此可以控制第二电池停止供电，以节省第二电池的电能。
作为第一方面一种可能的实现方式，控制第二电池停止为车辆供电，具体包括： 控制外接电源通过第二电路与车辆连接；其中，第二电路允许的最大工作电流为第二电流阈值。由此，可以在第二电池停止供电，不需要将过载保护的电流值设置在第一电流阈值时，切换回第二电路，以将过载保护的电流值切换为第二电流阈值，为其他功能提供相应电流的过载保护。
作为第一方面一种可能的实现方式，在获取车辆的第一电池的电压之前，方法还包括：控制外接电源通过第二电路与车辆连接。由此，可以在获取第一电池的电压之前，通过第二电路提供过载保护；当需要第二电池为车辆供电时，再由第一电路提供过载保护；当第二电池停止为车辆供电后，再切换回第二电路提供过载保护。由此，可以根据需要切换相应电流的过载保护，从而为车辆中的相关电子元器件提供相匹配的过载保护。
作为第一方面一种可能的实现方式，还包括：获取第二电池的电压，当第二电池的电压低于第三电压阈值时，控制车辆为第二电池充电。由此，当第二电池的电压低于第三电压阈值时，可以确定第二电池处于亏电状态，第二电池无法为下一次的车辆启动提供足够的电能。因此，可以通过车辆对第二电池进行充电，以便用户在下次使用外接电源启动车辆时，第二电池能够提供足够的电能。
作为第一方面一种可能的实现方式，控制车辆为第二电池充电，具体包括：控制车辆通过第一电路为第二电池充电。由此，可以通过第一电路提供过载保护，以避免电流过大损坏相关的电子元器件。
作为第一方面一种可能的实现方式，在获取第二电池的电压之后，方法还包括：根据第二电池的电压生成第一提示信息，当第二电池的电压低于第三电压阈值时，第一提示信息包括用于指示第二电池电量不足的信息。由此，可以方便用户获取第二电池的电量信息，在第二电池的电量不足时提醒用户，从而提升用户体验。
作为第一方面一种可能的实现方式，在获取车辆的第一电池的电压之后，方法还包括：根据第一电池的电压生成第二提示信息，当第一电池的电压高于第一电压阈值时，第二提示信息包括用于指示第一电池电量正常的信息。由此，可以帮助用户确定第一电池的电量足够车辆的启动，用户需要检测是否存在其他故障，致使车辆无法启动。
本申请第二方面提供一种电源，包括：电压检测单元，电压检测单元用于获取车辆的第一电池的电压；控制单元，控制单元用于在第一电池的电压低于第一电压阈值时，控制电源的第二电池为车辆供电。由此，可以通过电压检测单元获取车辆第一电池的电压来确定第一电池是否亏电，并且控制单元可以在确定第一电池亏电后，通过控制外接电源的第二电池提供车辆启动所需要的电能，以启动车辆。
作为第二方面一种可能的实现方式，控制电源的第二电池为车辆供电，具体包括：控制第二电池通过第一电路为车辆供电；其中，第一电路允许的最大工作电流为第一电流阈值。由此，可以通过第一电路来提供过载保护，避免因电流过大损坏车辆内的控制器等电子元器件。
作为第二方面一种可能的实现方式，控制单元还用于：当第一电池的电压高于第二电压阈值时，控制第二电池停止为车辆供电。由于车辆启动后车辆内的控制器会控制车辆内的高压电池为第一电池充电，因此，在检测到第一电池的电压高于第二电压 阈值时，可以确定高压电池开始为第一电池充电，车辆已经启动完成，因此可以控制第二电池停止供电，以节省第二电池的电能。
作为第二方面一种可能的实现方式，控制第二电池停止为车辆供电，具体包括：控制电源通过第二电路与车辆连接；其中，第二电路允许的最大工作电流为第二电流阈值。由此，可以在第二电池停止供电，不需要将过载保护设置在第一电流阈值时，切换回第二电路，以将过载保护的电流值切换为第二电流阈值，为实现其他功能提供相应电流的过载保护。
作为第二方面一种可能的实现方式，在获取车辆的第一电池的电压之前，控制单元还用于：控制电源通过第二电路与车辆连接。由此，可以在获取第一电池的电压之前，通过第二电路提供过载保护；当需要第二电池为车辆供电时，再由第一电路提供过载保护；当第二电池停止为车辆供电后，再切换回第二电路提供过载保护。由此，可以根据需要切换相应电流的过载保护，从而为车辆中的相关电子元器件提供相匹配的过载保护。
作为第二方面一种可能的实现方式，电压检测单元还用于：获取第二电池的电压；控制单元还用于当第二电池的电压低于第三电压阈值时，控制车辆为第二电池充电。由此，当第二电池的电压低于第三电压阈值时，可以确定第二电池处于亏电状态，第二电池无法为下一次的车辆启动提供足够的电能。因此，可以通过车辆对第二电池进行充电，以便用户在下次使用外接电源启动车辆时，第二电池能够提供足够的电能。
作为第二方面一种可能的实现方式，控制车辆为第二电池充电，具体包括：控制车辆通过第一电路为第二电池充电。由此，可以通过第一电路提供过载保护，以避免电流过大损坏相关的电子元器件。
作为第二方面一种可能的实现方式，在获取第二电池的电压之后，控制单元还用于：根据第二电池的电压生成第一提示信息，当第二电池的电压低于第三电压阈值时，第一提示信息包括用于指示第二电池电量不足的信息。由此，可以方便用户获取第二电池的电量信息，在第二电池的电量不足时提醒用户，从而提升用户体验。
作为第二方面一种可能的实现方式，在获取车辆的第一电池的电压之后，控制单元还用于：根据第一电池的电压生成第二提示信息，当第一电池的电压高于第一电压阈值时，第二提示信息包括用于指示第一电池电量正常的信息。由此，可以帮助用户确定第一电池的电量足够车辆的启动，用户需要检测是否存在其他故障，致使车辆无法启动。
作为第二方面一种可能的实现方式，还包括输出单元，输出单元用于显示或播放第一提示信息或第二提示信息。由此，可以便于用户通过输出单元获取第一信息或第二信息。
作为第二方面一种可能的实现方式，还包括连接单元，连接单元用于与车辆连接。由此，可以便于用户使用电源启动车辆时通过连接单元与车辆进行连接，方便了用户的操作。
本申请第三方面提供一种车辆，包括：第一电池，第一电池与车辆的至少一个控制器连接；连接部，连接部与第一电池和至少一个控制器连接，连接部还用于连接外接电源。由此，当车辆的第一电池亏电无法启动车辆时，可以通过连接部连接外接电 源，通过外接电源提供电能来启动车辆。
作为第三方面一种可能的实现方式，还包括：切换单元，切换单元被配置为在第一条件下切换为第一模式；在第一模式下，切换单元被配置为使连接部通过第一电路与至少一个控制器连接；第一条件包括：第一电池的电压低于第一电压阈值，或者，切换单元接收第一信号，第一信号用于控制切换单元在第一模式下工作。由此，当需要外接电源提供电能来启动车辆时，可以通过切换单元切换第一电路连接控制器。以使外接电源连接连接部向车辆提供启动所需的电能时，可以通过第一电路将电能输送给控制器，以使控制器能够正常工作。
作为第三方面一种可能的实现方式，切换单元被配置为在第二条件下切换为第二模式；在第二模式下，切换单元被配置为使连接部通过第二电路与第一电池连接；第二条件包括：第一电池的电压高于第二电压阈值，或者，切换单元接收第二信号，第二信号用于控制切换单元在第二模式下工作。由此，可以在不需要外接电源提供电能来启动车辆时，可以通过切换单元切换第二电路连接第一电池，从而能够通过第二电路从第一电池获取电能。
作为第三方面一种可能的实现方式，切换单元被配置为在第三条件下切换为第三模式；在第三模式下，切换单元被配置为使车辆通过第一电路为连接部供电；第三条件包括：切换单元接收第三信号，第三信号用于控制切换单元在第三模式下工作。由此，可以通过车辆对外接电源进行充电，以便于用户下次使用外接电源启动车辆时，外接电源能够提供足够的电能。
作为第三方面一种可能的实现方式，连接部为车辆的点烟器接口，或者，连接部为车辆的充电接口。由此，连接部可以复用车辆上现有的接口，不需要重新设置专门的接口。
作为第三方面一种可能的实现方式，还包括：盖板，盖板设置在车辆的轿厢内或车辆的外表面上与连接部处，用于覆盖连接部。由此，可以通过盖板对连接部提供保护，以避免杂物侵入连接部，对连接部造成损坏。
作为第三方面一种可能的实现方式，盖板为设置在车辆上的车标或车辆的车载高压蓄电池的充电接口盖板。由此，可以复用车标或者充电接口盖板，不需要专门设置连接部的盖板，以降低生产成本，避免在车辆外部设置盖板影响车辆美观。
本申请第四方面提供一种电源，包括至少一个处理器和至少一个存储器，存储器存储有程序指令，程序指令当被至少一个处理器执行时使得至少一个处理器执行如第一方面中任一可能实现的方法。
本申请第五方面提供一种计算机可读存储介质，其上存储有程序指令，程序指令被计算机执行时使得计算机执行第一方面中任一可能实现的方法。
本申请第六方面提供一种计算机程序产品，其包括有程序指令，程序指令当被计算机执行时使得计算机执行第一方面中任一可能实现的方法。
本申请的这些和其它方面在以下(多个)实施例的描述中会更加简明易懂。
附图说明
以下参照附图来进一步说明本申请的各个特征和各个特征之间的联系。附图均为 示例性的，一些特征并不以实际比例示出，并且一些附图中可能省略了本申请所涉及领域的惯常的且对于本申请非必要的特征，或是额外示出了对于本申请非必要的特征，附图所示的各个特征的组合并不用以限制本申请。另外，在本说明书全文中，相同的附图标记所指代的内容也是相同的。具体的附图说明如下：
图1为本申请实施例所涉及的车辆的示意图；
图2为车辆中部分装置的电连接示意图；
图3A为本申请实施例中车辆启动方法的示意流程图；
图3B为本申请实施例中外接电源的结构示意图；
图4为本申请实施例中车辆的结构示意图；
图5为通过本申请实施例中的应急电源启动车辆的示意图；
图6为第一电连接器的电连接示意图；
图7为本申请实施例中一种应急电源的结构示意图；
图8为图7中应急电源内部的电连接示意图；
图9为第二电连接器与第一电连接器的电连接示意图；
图10为通过本申请实施例提供的另一种应急电源启动车辆的示意图；
图11为第一电连接器的电连接示意图；
图12为应急电源内部的电连接示意图；
图13为第二电连接器与第一电连接器的电连接示意图；
图14A为本申请实施例中应急电源的控制方法的一部分流程图；
图14B为本申请实施例中应急电源的控制方法的另一部分流程图；
图15是本申请实施例提供的一种计算设备的结构性示意性图。
附图标记说明
10车辆；110车载低压蓄电池、第一电池；120车载高压蓄电池；130低压总线；140控制器；141VCU；142PDU；143BMS；150第一电连接器；151第一连接部；151a第一电源触点；151b第一信号触点；152切换单元；152a第一电路；152b第二电路；152c切换开关；160点烟器；170充电接口；180车标；20外接电源；210主体部；220外接低压蓄电池、第二电池；230电压检测单元；240控制单元；250输出单元；251触摸控制屏；252音箱；260第二电连接器；261第二连接部；261a第二电源触点；261b第二信号触点；270第一供电线、第二供电线；300计算设备；310处理器；320存储器；330通信接口。
具体实施方式
说明书和权利要求书中的词语“第一、第二、第三等”类似用语，仅用于区别类似的对象，不代表针对对象的特定排序，可以理解地，在允许的情况下可以互换特定的顺序或先后次序，以使这里描述的本申请实施例能够以除了在这里图示或描述的以外的顺序实施。
在以下的描述中，所涉及的表示步骤的标号，如S110、S120……等，并不表示一定会按此步骤执行，在允许的情况下可以互换前后步骤的顺序，或同时执行。
说明书和权利要求书中使用的术语“包括”不应解释为限制于其后列出的内容；它 不排除其它的元件或步骤。因此，其应当诠释为指定所提到的特征、整体、步骤或部件的存在，但并不排除存在或添加一个或更多其它特征、整体、步骤或部件及其组群。因此，表述“包括装置A和B的设备”不应局限为仅由部件A和B组成的设备。
本说明书中提到的“一个实施例”或“实施例”意味着与该实施例结合描述的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在本说明书各处出现的用语“在一个实施例中”或“在实施例中”并不一定都指同一实施例，但可以指同一实施例。此外，在一个或多个实施例中，能够以任何适当的方式组合各特定特征、结构或特性，如从本公开对本领域的普通技术人员显而易见的那样。
当车辆的车载低压蓄电池处于亏电状态，需要通过外接搭电的方式来启动车辆时，一种方案为使用特制的工具，通过特殊方式打开车辆的前舱盖，拆除遮挡车载低压蓄电池的盖板，将外接电源的正极连接车载低压蓄电池的正极，将外接电源的负极连接车载低压蓄电池的负极，或者在车载低压蓄电池的负极未露出时，将外接电源的负极连接车身。然后通过机械钥匙开启车门，进入车内启动车辆。
上述方案中至少存在以下三个缺陷。第一，这种搭电的方法需要用到专用的工具才能完成拆卸，并且拆卸过程及搭电的过程非常繁琐复杂，如果操作失误就有可能会对车内部件造成损坏，需要经过培训后的专业人员进行操作。第二，车载低压蓄电池并没有设置专门的搭接装置，搭电时通常会使用铁夹进行夹持固定，容易发生因连接不牢虚接打火的现象，有引发触电或火灾的风险。第三，无法准确判定车载蓄电池是否真实处于亏电状态。
另一种方案为设置补电功能，即当车辆处于静止状态时，通过T-BOX(Telematics Box，车载通讯终端)定时唤醒车辆，查看车载低压蓄电池的电量状态，通过VCU(Vehicle Control Unit，车辆控制单元)判断整车状态是否满足补电条件，如果满足则唤醒BMS(Battery Management System，电池管理系统)、PDU(Power Distribution Unit，电源分配单元)等相关的部件，由车辆内的车载高压蓄电池(也称为动力电池)提供高压直流电，通过PDU内部的DC/DC(Direct Current/Direct Current，直流转换器)模块将高压直流电转化为低压直流电从而为车载低压蓄电池充电，以避免车载低压蓄电池亏电。
上述方案中至少存在以下两个缺陷。第一，当T-BOX定时唤醒整车时，VCU会先判定车载高压蓄电池的SOC(State of Charge，电荷状态)是否满足要求，例如，如果SOC小于15％，则无法启动补电功能。因此，车辆长时间静止后，车载低压蓄电池仍然会存在亏电的风险。第二，补电功能涉及多个部件的协同工作，如果其中有一环出现偏差，则无法达到预期效果，由此会影响补电功能的可靠性，车载低压蓄电池仍然会存在亏电的风险。
基于现有技术所存在的缺陷，本申请提供了一种车辆外接电源启动方法、电源及车辆。当车辆处于亏电状态无法启动时，提供车辆启动所需要的电能，以启动车辆外接电源。
图1为本申请实施例所涉及的车辆10的示意图。如图1所示，车辆10内设置有车载低压蓄电池110(相当于第一电池)、车载高压蓄电池120、低压总线130以及VCU141、PDU142、BMS143等控制器140。
本申请中的车辆10可以是电动汽车中的纯电动汽车或混动汽车，可以是轿车、货车、客运客车、SUV(sport utility vehicle，运动型多用途汽车)等不同类型汽车中的任意一种，车辆10还可以是三轮车、摩托车、火车等载人或者载货的陆地运输装置。
图2为车辆10中部分装置的电连接示意图，示出了图1中的车辆10内部装置的电连接关系。如图2所示，车载低压蓄电池110的正负极分别与低压总线130的正、负两根低压线电连接，VCU141、PDU142、BMS143等控制器140通过低压线与低压总线130电连接，VCU141、PDU142、BMS143等控制器140需要获得例如9V～16V的低压电才能够正常工作，车载低压蓄电池110可以通过低压总线130为VCU141、PDU142、BMS143等控制器140提供例如9V～16V低压电，使控制器140能够正常工作。
车载高压蓄电池120用于为车辆10的驱动系统等高压系统提供例如300V～800V的高压电，PDU142可以通过高压线与车载高压蓄电池120实现电连接，用于为车辆10中的高压系统提供充放电控制、高压部件上电控制、电路过载短路保护、高压采样等功能，用于保护和监控高压系统的运行。PDU142中还设置有DC/DC模块，DC/DC模块可以将高压蓄电池提供的高压电转换为例如13.5V的低压电，从而能够为车载低压蓄电池110充电。BMS143为保护车载高压蓄电池120使用安全的控制系统，可以实时地对车载高压蓄电池120进行监测，控制车载高压蓄电池120的充电与放电，避免出现过度充电与放电。VCU141是实现整车控制决策的核心电子控制装置。VCU141与PDU142、BMS143等控制器140通过信号线电连接，从而能够实现对PDU142、BMS143的控制。
当车载低压蓄电池110处于亏电状态时，VCU141、PDU142、BMS143等控制器140因为无法从车载低压蓄电池110获得足够的低压电，从而无法正常工作。此时，车辆10的车门、尾门等的电控门锁无法工作，用户无法进入座舱内。即使通过机械钥匙打开车门进入座舱内，仍然无法启动车辆10。甚至于，即使车辆10的充电接口170与充电桩连接，由于VCU141、PDU142、BMS143等控制器140无法工作，也无法实现对车辆10的充电。
本申请提出以下将详细描述的车车辆启动方法、外接电源20及车辆10的各个实施例，以能够在车载低压蓄电池110亏电时，可以由外接电源20提供电能，以便启动车辆10。
图3A为本申请实施例中车辆启动方法100的示意流程图。图3A所示的方法100可以由例如外接电源20或任意其他合适的装置来执行，以在第一电池110亏电时，控制外接电源20向车辆10供电，以启动车辆10。方法100包括步骤S120与步骤S130。
在步骤S120、获取车辆10的第一电池110的电压；
在步骤S130、当第一电池110的电压低于第一电压阈值时，控制外接电源20的第二电池220为车辆10供电。
由此，可以通过获取车辆10第一电池110的电压来确定第一电池110是否亏电，并且可以在确定第一电池110亏电后，通过外接电源20的第二电池220提供车辆10启动所需要的电能，以启动车辆10。
在一些实施例中，步骤S130还包括步骤S131。
在步骤S131、控制外接电源20的第二电池220为车辆10供电，具体包括：控制第二电池220通过第一电路152a为车辆10供电；其中，第一电路152a允许的最大工作电流为第一电流阈值。
由此，可以通过第一电路152a来提供过载保护，避免因电流过大损坏车辆10内的控制器140等电子元器件。
在一些实施例中，方法100还包括步骤S140。
在步骤S140、当第一电池110的电压高于第二电压阈值时，控制第二电池220停止为车辆10供电。
由于车辆10启动后车辆10内的控制器140会控制车辆10内的高压蓄电池120为第一电池110充电，因此，在检测到第一电池110的电压高于第二电压阈值时，可以确定高压蓄电池120开始为第一电池110充电，车辆10已经启动完成，因此可以控制第二电池220停止供电，以节省第二电池220的电能。
在一些实施例中，步骤S140还包括步骤S141。
在步骤S141、控制第二电池220停止为车辆10供电，具体包括：控制外接电源20通过第二电路152b与车辆10连接；其中，第二电路152b允许的最大工作电流为第二电流阈值。
由此，可以在第二电池220停止供电，不需要将过载保护设置在第一电流阈值时，切换回第二电路152b，以将过载保护的电流值切换为第二电流阈值，为其他功能提供相应电流的过载保护。
在一些实施例中，方法100还包括步骤S110。
在步骤S110、在获取车辆10的第一电池110的电压之前，控制外接电源20通过第二电路152b与车辆10连接。
由此，可以在获取第一电池110的电压之前，通过第二电路152b提供过载保护；当需要第二电池220为车辆10供电时，再由第一电路152a提供过载保护；当第二电池220停止为车辆10供电后，再切换回第二电路152b提供过载保护。由此，可以根据需要切换相应电流的过载保护，从而为车辆10中的相关电子元器件提供相匹配的过载保护。
在一些实施例中，方法100还包括步骤S150。
在步骤S150、获取第二电池220的电压，当第二电池220的电压低于第三电压阈值时，控制车辆10为第二电池220充电。
由此，当第二电池220的电压低于第三电压阈值时，可以确定第二电池220处于亏电状态，第二电池220无法为下一次的车辆10启动提供足够的电能。因此，可以通过车辆10对第二电池220进行充电，以便用户在下次使用外接电源20启动车辆10时，第二电池220能够提供足够的电能。
在一些实施例中，步骤S150还包括步骤S151。
在步骤S151、控制车辆10为第二电池220充电，具体包括：控制车辆10通过第一电路152a为第二电池220充电。
由此，可以通过第一电路152a提供过载保护，以避免电流过大损坏相关的电子 元器件。
在一些实施例中，方法100还包括步骤S160。
在步骤S160、在获取第二电池220的电压之后，根据第二电池220的电压生成第一提示信息，当第二电池220的电压低于第三电压阈值时，第一提示信息包括用于指示第二电池220电量不足的信息。
由此，可以方便用户获取第二电池220的电量信息，在第二电池220的电量不足时提醒用户，从而提升用户体验。
在一些实施例中，方法100还包括步骤S170。
在步骤S170、在获取车辆10的第一电池110的电压之后，根据第一电池110的电压生成第二提示信息，当第一电池110的电压高于第一电压阈值时，第二提示信息包括用于指示第一电池110电量正常的信息。
由此，可以帮助用户确定第一电池110的电量足够车辆10的启动，用户需要检测是否存在其他故障，致使车辆10无法启动。
上文结合图3A详细描述了本申请实施例中车辆启动的方法实施例，下面结合图3B详细描述本申请的外接电源20的装置实施例。应理解，方法实施例的描述与装置实施例的描述相互对应，因此，在装置实施例中未详细描述的部分可以参见前面方法实施例。
图3B为本申请实施例中外接电源20的结构示意图。如图3B所示，本申请实施例中的外接电源20包括：电压检测单元230，电压检测单元230用于获取车辆10的第一电池110的电压；控制单元240，控制单元240用于在第一电池110的电压低于第一电压阈值时，控制外接电源20的第二电池220为车辆10供电。由此，可以通过电压检测单元230获取车辆10第一电池110的电压来确定第一电池110是否亏电，并且控制单元240可以在确定第一电池110亏电后，通过控制外接电源20的第二电池220提供车辆10启动所需要的电能，以启动车辆10。
在一些实施例中，控制外接电源20的第二电池220为车辆10供电，具体包括：控制第二电池220通过第一电路152a为车辆10供电；其中，第一电路152a允许的最大工作电流为第一电流阈值。由此，可以通过第一电路152a来提供过载保护，避免因电流过大损坏车辆10内的控制器140等电子元器件。
在一些实施例中，控制单元240还用于：当第一电池110的电压高于第二电压阈值时，控制第二电池220停止为车辆10供电。由于车辆10启动后车辆10内的控制器140会控制车辆10内的高压蓄电池120为第一电池110充电，因此，在检测到第一电池110的电压高于第二电压阈值时，可以确定高压蓄电池120开始为第一电池110充电，车辆10已经启动完成，因此可以控制第二电池220停止供电，以节省第二电池220的电能。
在一些实施例中，控制第二电池220停止为车辆10供电，具体包括：控制外接电源20通过第二电路152b与车辆10连接；其中，第二电路152b允许的最大工作电流为第二电流阈值。由此，可以在第二电池220停止供电，不需要将过载保护的电流值设置在第一电流阈值时，切换回第二电路152b，以将过载保护的电流值切换为第二电流阈值，为实现其他功能提供相应电流的过载保护。
在一些实施例中，在获取车辆10的第一电池110的电压之前，控制单元240还用于：控制电源通过第二电路152b与车辆10连接。由此，可以在获取第一电池110的电压之前，通过第二电路152b提供过载保护；当需要第二电池220为车辆10供电时，再由第一电路152a提供过载保护；当第二电池220停止为车辆10供电后，再切换回第二电路152b提供过载保护。由此，可以根据需要切换相应电流的过载保护，从而为车辆10中的相关电子元器件提供相匹配的过载保护。
在一些实施例中，电压检测单元230还用于：获取第二电池220的电压；控制单元240还用于当第二电池220的电压低于第三电压阈值时，控制车辆10为第二电池220充电。由此，当第二电池220的电压低于第三电压阈值时，可以确定第二电池220处于亏电状态，第二电池220无法为下一次的车辆10启动提供足够的电能。因此，可以通过车辆10对第二电池220进行充电，以便用户在下次使用外接电源20启动车辆10时，第二电池220能够提供足够的电能。
在一些实施例中，控制车辆10为第二电池220充电，具体包括：控制车辆10通过第一电路152a为第二电池220充电。由此，可以通过第一电路152a提供过载保护，以避免电流过大损坏相关的电子元器件。
在一些实施例中，在获取第二电池220的电压之后，控制单元240还用于：根据第二电池220的电压生成第一提示信息，当第二电池220的电压低于第三电压阈值时，第一提示信息包括用于指示第二电池220电量不足的信息。由此，可以方便用户获取第二电池220的电量信息，在第二电池220的电量不足时提醒用户，从而提升用户体验。
在一些实施例中，在获取车辆10的第一电池110的电压之后，控制单元240还用于：根据第一电池110的电压生成第二提示信息，当第一电池110的电压高于第一电压阈值时，第二提示信息包括用于指示第一电池110电量正常的信息。由此，可以帮助用户确定第一电池110的电量足够车辆10的启动，用户需要检测是否存在其他故障，致使车辆10无法启动。
在一些实施例中，还包括输出单元250，输出单元250用于显示或播放第一提示信息或第二提示信息。由此，可以便于用户通过输出单元250获取第一信息或第二信息。
在一些实施例中，还包括连接单元，连接单元用于与车辆10连接。由此，可以便于用户使用电源启动车辆10时通过连接单元与车辆10进行连接，方便了用户的操作。
图4为本申请实施例中车辆10的结构示意图。如图4所示，本申请还提供一种车辆10，包括：第一电池110，第一电池110与车辆10的至少一个控制器140连接；第一连接部151，第一连接部151与第一电池110和至少一个控制器140连接，第一连接部151还用于连接外接电源20。由此，当车辆10的第一电池110亏电无法启动车辆10时，可以通过第一连接部151连接外接电源20，通过外接电源20提供电能来启动车辆10。
在一些实施例中，还包括：切换单元152，切换单元152被配置为在第一条件下切换为第一模式；在第一模式下，切换单元152被配置为使第一连接部151通过第一 电路152a与至少一个控制器140连接；第一条件包括：第一电池110的电压低于第一电压阈值，或者，切换单元152接收第一信号，第一信号用于控制切换单元152在第一模式下工作。由此，当需要外接电源20提供电能来启动车辆10时，可以通过切换单元152切换第一电路152a连接控制器140。以使外接电源20连接第一连接部151向车辆10提供启动所需的电能时，可以通过第一电路152a将电能输送给控制器140，以使控制器140能够正常工作。
在一些实施例中，切换单元152被配置为在第二条件下切换为第二模式；在第二模式下，切换单元152被配置为使第一连接部151通过第二电路152b与第一电池110连接；第二条件包括：第一电池110的电压高于第二电压阈值，或者，切换单元152接收第二信号，第二信号用于控制切换单元152在第二模式下工作。由此，可以在不需要外接电源20提供电能来启动车辆10时，可以通过切换单元152切换第二电路152b连接第一电池110，从而能够通过第二电路152b从第一电池110获取电能。
在一些实施例中，切换单元152被配置为在第三条件下切换为第三模式；在第三模式下，切换单元152被配置为使车辆10通过第一电路152a为第一连接部151供电；第三条件包括：切换单元152接收第三信号，第三信号用于控制切换单元152在第三模式下工作。由此，可以通过车辆10对外接电源20进行充电，以便于用户下次使用外接电源20启动车辆10时，外接电源20能够提供足够的电能。
在一些实施例中，第一连接部151为车辆10的点烟器接口，或者，第一连接部151为车辆10的充电接口170。由此，第一连接部151可以复用车辆10上现有的接口，不需要重新设置专门的接口。
在一些实施例中，还包括：盖板，盖板设置在车辆10的轿厢内或车辆10的外表面上与第一连接部151处，用于覆盖第一连接部151。由此，可以通过盖板对第一连接部151提供保护，以避免杂物侵入第一连接部151，对第一连接部151造成损坏。
在一些实施例中，盖板为设置在车辆10上的车标180或车辆10的车载高压蓄电池的充电接口170盖板。由此，可以复用车标180或者充电接口170盖板，不需要专门设置第一连接部151的盖板，以降低生产成本，避免在车辆10外部设置盖板影响车辆10美观。
下面，结合具体的实施例，对本申请实施例中的车辆启动方法、外接电源20及车辆10控制单元进行详细地描述。
图5为通过本申请实施例中的外接电源20启动车辆10的示意图。如图5所示，当车辆10的车载低压蓄电池110处于亏电状态，此时无法通过远程控车钥匙或指纹等方式打开车门，也无法启动车辆10。但是，可以通过机械钥匙打开车门，从而进入车辆10的座舱。
在座舱内例如中控台上，设置有第一电连接器150。车辆10的点烟器160可以插入第一电连接器150内与第一电连接器150电连接，即第一电连接器150可以是复用的车辆10内的点烟器接口。本申请实施例中的外接电源20也可以与第一电连接器150电连接，通过外接电源20为车辆10提供启动所需要的低压电。
图6为第一电连接器150的电连接示意图，示出了图5中车辆10上的第一电连接器150与车辆10内的其他装置之间的电连接关系。如图6所示，与图2相比图6 中的车辆10增加了第一电连接器150，第一电连接器150包括第一连接部151以及切换单元152。其中，第一连接部151包括两个第一电源触点151a以及一个第一信号触点151b，两个第一电源触点151a通过低压线分别与低压总线130电连接。由此，车载低压蓄电池110可以通过第一电连接器150输出低压电，外接电源20与第一电连接器150连接后也可以通过第一电连接器150向控制器140提供低压电。
第一连接部151通过切换单元152与低压总线130电连接，具体的，切换单元152串联在低压总线130的正极与第一电源触点151a之间的低压线上。切换单元152包括第一电路152a、第二电路152b以及切换开关152c，第一电路152a、第二电路152b并联后与切换开关152c一同串联在低压总线130的正极与第一电源触点151a之间，切换开关152c用于切换第一电路152a或第二电路152b串联在车载低压蓄电池110的正极与第一电源触点151a之间。
对于切换开关152c的具体形式，可以为如图6所示的单刀双掷形式的开关，也可以是两个分别与第一电路152a、第二电路152b串联的开关，由两个开关对第一电路152a、第二电路152b进行单独的控制，以实现切换第一电路152a或第二电路152b串联在车载低压蓄电池110的正极与第一电源触点151a之间，在此不做限定。
第一电路152a与第二电路152b可以是空气开关、熔断器等任意类型的过载保护器，第一电路152a与第二电路152b的规格不同，可以提供两种电流规格的过载保护。第一电路152a可以在流通的电流超过第一电流阈值时，例如电流超过100A时，第一电路152a断路。第二电路152b在流通的电流超过第二电流阈值时，例如电流超过10A时，第二电路152b断路。
第一信号触点151b可以通过信号线与切换开关152c相连，由此，当外接电源20的下述第二电连接器260插入第一电连接器150后，可以通过第一信号触点151b连接切换开关152c，从而能够向切换开关152c发送控制信号，以切换第一电路152a或第二电路152b串联在低压总线130与第一电源触点151a之间。
图7为本申请实施例中一种外接电源20的结构示意图；图8为图7中外接电源20内部的电连接示意图。如图7、图8所示，外接电源20可以包括主体部210、外接低压蓄电池220(相当于第二电池)、电压检测单元230、控制单元240、输出单元250、第二电连接器260以及第一供电线270。其中，第二电连接器260具有第二连接部261(相当于连接单元)，第二连接部261的形状及结构与第一电连接器150的第一连接部151的形状及结构相适配，第二连接部261可以插入第一连接部151内与第一连接部151实现插拔连接。第二连接部261内设置有两个第二电源触点261a以及一个第二信号触点261b，第二连接部261插入第一连接部151后，第二电源触点261a及第二信号触点261b相应地与第一电源触点151a及第一信号触点151b相接触，从而实现第二连接部261与第一连接部151的电连接。
外接低压蓄电池220、电压检测单元230、控制单元240、输出单元250可以设置在主体部210的内部，第一供电线270的一端与主体部210连接，另一端与第二电连接器260连接，第一供电线270与主体部210及第二电连接器260的连接方式可以是固定连接，也可以是可分离的连接。第一供电线270内设置有低压线及信号线，可以通过低压线输送低压电，通过信号线输送控制信号。外接低压蓄电池220通过低压 线与两个第二电源触点261a电连接，从而能够通过第二连接部261为控制器140输送低压电。电压检测单元230通过低压线与第二连接部261中的两个第二电源触点261a电连接，电压检测单元230可以为电压传感器、电压检测仪等设备，用于检测两个第二电源触点261a之间的电压。输出单元250可以是设置在主体部210上的触摸控制屏251、音箱252等设备，可以通过声音、文字、图片、动画等形式发出提示信息。控制单元240通过信号线与外接低压蓄电池220、电压检测单元230、输出单元250电连接，使控制单元240可以向外接低压蓄电池220、电压检测单元230、输出单元250发出第一控制指令，以控制外接低压蓄电池220、电压检测单元230、输出单元250工作。控制单元240还通过信号线与第二电连接器260中的第二信号触点261b电连接，从而能够在第二连接部261插入第一连接部151后与切换开关152c电连接，以使控制单元240能够发出控制指令，控制切换开关152c切换第一电路152a或第二电路152b串联在低压总线130与第一连接部151的第一电源触点151a之间。
进一步地，第一电连接器150与第二电连接器260电连接后，可以通过操作触摸控制屏251或者设置在主体部210上的控制按键，从而向控制单元240发出指示信息，以指示控制单元240控制外接低压蓄电池220向车辆10输出低压电。
进一步地，第一电连接器150与第二电连接器260电连接后，电压检测单元230与车载低压蓄电池110形成回路，电压检测单元230可以检测到车载低压蓄电池110的电压。电压检测单元230将检测到的车载低压蓄电池110的电压发送给控制单元240，控制单元240即可确定第一电连接器150与第二电连接器260实现了电连接。同时，控制单元240还可以将检测到的车载低压蓄电池110的电压视为指示信息，指示信息指示控制单元240控制外接低压蓄电池220向车辆10输出低压电。
图9为第二电连接器260与第一电连接器150的电连接示意图。如图9所示，将第二连接部261插入第一连接部151，可以使第二电连接器260与第一电连接器150电连接。此时，两个第一电源触点151a分别与两个第二电源触点261a电连接，从而使外接低压蓄电池220可以与控制器140电连接，使电压检测单元230可以与低压总线130电连接，进而与车载低压蓄电池110及控制器140电连接。第一信号触点151b与第二信号触点261b电连接，从而使控制单元240与切换开关152c电连接。
由此，控制单元240可以控制电压检测单元230进行第一电压检测，以检测车载低压蓄电池110的电压，从而确定车载低压蓄电池110的状态。控制单元240可以根据第一电压检测的检测结果控制输出单元250发出第一提示信息。当第一电压检测中检测到车载低压蓄电池110的电压等于或高于第一电压阈值时，第一电压阈值可以是例如9V，第一提示信息的内容可以是提示车载低压蓄电池110处于正常状态，能够为控制器140提供足够的低压电。此时车辆10如果无法正常启动，提示检查车辆10是否存在其他故障。当第一电压检测中检测到车载低压蓄电池110的电压低于第一电压阈值时，第一提示信息的内容可以是提示车载低压蓄电池110处于亏电状态，无法为控制器140提供足够的低压电。此时，控制单元240可以控制外接低压蓄电池220向控制器140提供低压电，使控制器140能够正常工作。
控制器140正常工作后，可以通过充电桩向车载高压蓄电池120进行充电。PDU142中的DC/DC模块也可以将高压蓄电池提供的高压电转换为例如13.5V的低压电， 从而可以为车载低压蓄电池110充电，还可以为控制器140提供低压电。
由此，外接低压蓄电池220向控制器140提供低压电后，控制单元240可以控制电压检测单元230进行第二电压检测，以检测控制器140的电压，从而确定控制器140是否正常工作。控制单元240可以根据第二电压检测的检测结果控制输出单元250发出第二提示信息。当第二电压检测中检测到控制器140的电压低于第二电压阈值时，第二电压阈值可以是例如13.5V，第二提示信息的内容可以是提示车辆10启动失败，PDU142未能将车载高压蓄电池120的高压电转换为低压电，未能对车载低压蓄电池110进行充电，也未能提供控制器140工作所需的低压电，需要重新启动车辆10。当第二电压检测中检测到控制器140的电压等于或高于第二电压阈值时，第二提示信息的内容可以是提示车辆10启动成功，正在由车载高压蓄电池120提供电能以对车载低压蓄电池110进行充电，控制器140正常工作。
控制单元240还可以控制电压检测单元230进行第三电压检测，以检测外接低压蓄电池220的状态。控制单元240可以根据第三电压检测的检测结果控制输出单元250发出第三提示信息。当第三电压检测中检测到外接低压蓄电池220的电压等于或高于第三电压阈值时，第三提示信息的内容可以是提示外接低压蓄电池220正常，可以为车辆10启动提供足够的低压电。当第三电压检测中检测到外接低压蓄电池220的电压低于第三电压阈值时，第三提示信息的内容可以是提示外接低压蓄电池220处于亏电状态，无法为车辆10启动提供足够的低压电，并提示对外接低压蓄电池220进行充电。
进一步地，车辆10启动后，PDU142将车载高压蓄电池120的高压电转换为低压电输送给低压总线130。用户可以通过操作触摸控制屏251或者控制键等方式，使控制单元240可以控制与低压总线130电连接的第二连接部261获取低压电，从而能够对外接低压蓄电池220进行充电。由此，能够在用户下次需要使用外接电源启动车辆时，外接低压蓄电池220中具有足够的电能，以方便用户使用。
进一步地，车辆10启动后，还可以是控制单元240直接可以控制与低压总线130电连接的第二连接部261获取低压电，从而能够对外接低压蓄电池220进行充电。
进一步地，当第三电压检测中检测到外接低压蓄电池220的电压等于或高于第三电压阈值时，控制单元240还可以根据第三电压检测中的检测结果，确定外接低压蓄电池220的电量，进而根据外接低压蓄电池220的电量以及车辆10启动所需的电量计算出还可以启动车辆10的次数。由此，第三提示信息的内容还可以是提示外接低压蓄电池220可以启动车辆10的次数。
控制单元240还可以在控制外接低压蓄电池220向控制器140输送低压电之前，控制切换开关152c将第一电路152a串联在控制器140与第一电源触点151a之间，从而能够防止外接低压蓄电池220输送给控制器140的电流过大，损坏控制器140。
控制单元240还可以在控制外接低压蓄电池220向控制器140输送低压电之后，控制切换开关152c将第二电路152b串联在车载低压蓄电池110与第一电源触点151a之间，从而能够在例如点烟器160等第二连接头插入第一电连接器150后，防止车载低压蓄电池110输送给第二连接头的电流过大，损坏控制器140。
本申请实施例中还提供了另一种外接电源20及车辆10，以能够方便地与车辆10 连接，为车辆10提供启动所需要的低压电。
图10为通过本申请实施例提供的另一种外接电源20启动车辆10的示意图。如图10所示，当车辆10的车载低压蓄电池110处于亏电状态，此时无法通过远程控车钥匙或指纹等方式打开车门，也无法启动车辆10。在车辆10的外部，例如车辆10的前后车标180或用于对车载高压蓄电池120进行充电的充电接口170的相邻位置，设置有第一电连接器150。第一电连接器150可以隐藏设置在前后车标180所覆盖的位置，或者设置在车辆10的充电接口170的相邻位置，由充电接口170的盖板同时覆盖隐藏。可以将本申请实施例中的外接电源20与第一电连接器150相连，通过外接电源20为车辆10提供启动所需要的低压电。
图11为第一电连接器150的电连接示意图，示出了图10中车辆10上的第一电连接器150与车辆10内的其他装置之间的电连接关系。如图11所示，第一电连接器150包括第一连接部151与切换单元152。第一连接部151中设置有两个第一电源触点151a，两个第一电源触点151a通过低压线与低压总线130电连接。切换单元152包含一个第一电路152a，第一电路152a串联在低压总线130的正极与第一电源触点151a之间，第一电路152a可以为空气开关或者熔断器，当通过第一电路152a的电流超过第三电流阈值例如100A时，第一电路152a断路。
图12为外接电源20内部的电连接示意图，示出了图10中外接电源20内部各装置之间的电连接关系。如图12所示，外接电源20可以包括主体部210、外接低压蓄电池220、电压检测单元230、控制单元240、输出单元250、第二电连接器260以及第二供电线270。第二供电线270的一端与主体部210连接，另一端与第二电连接器260连接，第二供电线270与主体部210及第二电连接器260的连接方式可以是固定连接，也可以是可分离的连接。第二供电线270内设置有低压线，可以通过低压线输送低压电。其中，电压检测单元230、控制单元240、输出单元250设置在主体部210的内部，第二电连接器260具有第二连接部261，第二连接部261的形状及结构与第一连接部151的形状及结构相适配，第二连接部261可以插入第一连接部151内与第一连接部151实现插拔连接。第二连接部261内设置有两个第二电源触点261a，第二连接部261插入第一连接部151后，两个第二电源触点261a分别与两个第一电源触点151a相接触，从而实现第二电连接器260与第一电连接器150的电连接。
外接低压蓄电池220可以设置在主体部210的内部，外接低压蓄电池220通过低压线与两个第二电源触点261a电连接，从而能够通过第二电连接器260为控制器140输送低压电。电压检测单元230通过低压线与第二连接部261中的两个第二电源触点261a电连接，电压检测单元230可以为电压传感器、电压检测仪等设备，用于检测两个第二电源触点261a之间的电压。输出单元250可以是设置在第二电连接器260上的触摸控制屏251、音箱252等设备，可以通过声音、文字、图片、动画等形式发出提示信息。控制单元240通过信号线与外接低压蓄电池220、电压检测单元230、输出单元250电连接，使控制单元240可以向外接低压蓄电池220、电压检测单元230、输出单元250发出第一控制指令，以控制外接低压蓄电池220、电压检测单元230、输出单元250工作。
图13为第二电连接器260与第一电连接器150的电连接示意图，示出了图11中 的第一电连接器与图12中的第二电连接器的电连接关系。如图13所示，将第二连接部261插入第一连接部151，可以使第二电连接器260与第一电连接器150电连接。此时，两个第一电源触点151a分别与两个第二电源触点261a电连接，从而使外接低压蓄电池220可以与低压总线130电连接，使电压检测单元230可以与车载低压蓄电池110及控制器140电连接。由此，可以控制外接低压蓄电池220向控制器140提供低压电，使控制器140能够正常工作，可以控制电压检测单元230进行第一电压检测、第二电压检测以及第三电压检测，可以控制输出单元250发出第一提示信息、第二提示信息以及第三提示信息。具体方式，此处不再赘述。
进一步地，第一电连接器150还可以复用充电接口170，从而可以减少接口数量，降低生产成本，方便用户的操作。
进一步地，第一电连接器150可以是单独的接口，也可以是复用车辆10上现有的接口。可以是外观可以看到的，也可以是通过盖子盖住看不到的，可以在车身表面，也可以在座舱内饰表面。
进一步地，电压检测单元230、控制单元240、输出单元250还可以设置在第二电连接器260内，对此不做限定。
本申请实施例中还提供了一种外接电源20的控制方法，可以控制外接电源20为车辆10启动提供低压电。
图14A为本申请实施例中外接电源20的控制方法200的一部分流程图；图14B为本申请实施例中外接电源20的控制方法200的另一部分流程图。如图14A、图14B所示，外接电源20的控制方法200的具体步骤包括：
步骤S201、进行第三电压检测，检测外接低压蓄电池220的电压。
控制单元240控制电压检测单元230进行第三电压检测，对外接电源20中外接低压蓄电池220的电压进行检测，可以获取外接低压蓄电池220的电压数据。电压检测单元230可以将检测结果发送给控制单元240，控制单元240可以根据检测结果计算出外接低压蓄电池220的电量。
步骤S202、判断外接低压蓄电池220的电压是否高于或等于第三电压阈值。
通过外接低压蓄电池220的电压计算出外接低压蓄电池220的电量，根据车辆10启动所需要的电量，可以确定外接低压蓄电池220的电压高于或等于第三电压阈值时，可以为车辆10启动提供足够的电量，还可以确定外接低压蓄电池220的电量还可以启动车辆10的次数。当外接低压蓄电池220的电压低于第三电压阈值时，可以确定外接低压蓄电池220处于亏电状态，不能为车辆10启动提供足够的低压电。
步骤S203、提示可以启动车辆10。
控制单元240控制输出单元250发出第三提示信息，第三提示信息包括：当外接低压蓄电池220的电压高于或等于第三电压阈值时，提示外接低压蓄电池220可以为车辆10的启动提供足够的电能，提示可以启动车辆10。
输出单元250发出提示的方式可以是通过设置在外接电源20上的触摸控制屏251、音箱252等装置发出，可以通过声音、文字、图片、动画等形式发出提示信息。从而能够使便于用户及时了解外接电源20的状态，方便使用。
进一步地，输出单元250还可以提示外接电源20可以启动车辆10的次数。从而 能够使用户更加清楚地了解外接电源20的状态，以方便用户使用。
步骤S204、提示对外接低压蓄电池220进行充电。
第三提示信息还包括：当外接低压蓄电池220的电压低于第三电压阈值时，外接低压蓄电池220无法为车辆10启动提供足够的电能，此时外接低压蓄电池220处于亏电状态，提示用户对外接低压蓄电池220进行充电。由此，用户可以使用与外接电源20相适配的充电设备，对外接电源20进行充电。
步骤S205、进行第一电压检测，检测车载低压蓄电池110的电压。
当第二连接部261插入第一连接部151中，第一电连接器150与第二电连接器260电连接时，电压检测单元230与车载低压蓄电池110实现电连接形成回路，电压检测单元230可以获取车载低压蓄电池110的电压。由此，控制单元240能够确定第一电连接器150与第二电连接器260实现电连接，同时还可以根据获取的车载低压蓄电池110的电压确定车载低压蓄电池110的状态。
步骤S206、判断车载低压蓄电池110的电压是否低于第一电压阈值。
当车载低压蓄电池110的电压低于第一电压阈值时，则车载低压蓄电池110处于亏电状态；当车载低压蓄电池110的电压等于或高于第一电压阈值时，则车载低压蓄电池110处于正常状态，可能是其他故障使车辆10无法正常启动。
步骤S207、提示车载低压蓄电池110处于亏电状态。
控制单元240控制输出单元250发出第一提示信息，第一提示信息包括：当车载低压蓄电池110的电压低于第一电压阈值时，提示车载低压蓄电池110处于亏电状态，需要外接电源20提供低压电，以使车辆10启动。
步骤S208、提示车载低压蓄电池110正常。
第一提示信息还包括：当车载低压蓄电池110的电压等于或高于第一电压阈值时，提示车载低压蓄电池110处于正常状态，可能是其他故障使车辆10无法正常启动，提示用户检查其他故障。
步骤S209、接收到低压电输出指令。
用户可以通过点击触摸控制屏251上的按键、点击外接电源20上的实体按键，或者通过语音控制、手势控制、远程终端控制等方法发出输出低压电的指示信息，控制单元240可以接收到该指示信息。
或者，电压检测单元230检测到第二电连接器260插入到第一电连接器150中时，获取到的车载低压蓄电池110的电压，当车载低压蓄电池110的电压低于第一电压阈值时，控制单元240可视为接收到输出低压电的指示信息。
步骤S210、切换单元152切换到第一电路152a。
外接低压蓄电池220输出低压电之前，控制单元240控制切换单元152中的切换开关152c进行切换，使第一电路152a串联在外接低压蓄电池220与控制器140之间。由此，当外接低压蓄电池220向控制器140提供低压电时，可以提供过载保护。即当输送给控制器140的电流过大时，例如大于100A时，第一电路152a熔断，使外接低压蓄电池220与控制器140之间断开。从而可以避免电流过大，对控制器140造成损坏。
步骤S211、外接低压蓄电池220输出低压电。
控制单元240接收到输出低压电的指示后发出第一控制指令，控制外接低压蓄电池220输出低压电，为控制器140提供电能。
步骤S212、进行第二电压检测，检测控制器140的电压。
控制单元240控制电压检测单元230进行第二电压检测，以检测控制器140的电压。电压检测单元230将检测结果发送给控制单元240，控制单元240根据检测结果可以判断控制器140的状态。
步骤S213、判断控制器140的电压是否高于或等于第二电压阈值。
控制单元240可以根据检测结果判断控制器140的状态，当检测结果中控制器140的电压高于或等于第二电压阈值时，说明车载高压蓄电池120在控制器140的控制下将高压电转换为了低压电，以对车载低压蓄电池110进行充电以及为控制器140提供低压电，也就说明了车辆10启动成功。
当检测结果中控制器140的电压低于第二电压阈值时，说明控制器140没有控制车载高压蓄电池120将高压电转换为了低压电，也就说明了车辆10启动失败。
步骤S214、提示车辆10启动成功。
控制单元240控制输出单元250发出第二提示信息，第二提示信息包括：当检测结果中控制器140的电压高于或等于第二电压阈值时，提示车辆10启动成功。此时车载高压蓄电池120在控制器140的控制下将高压电转换为了低压电，以对车载低压蓄电池110进行充电以及为控制器140提供低压电，提示可以将第二电连接器260或第二电连接器260从第一电连接器150或第一电连接器150中拔出。
步骤S215、提示车辆10启动失败。
第二提示信息还包括：当检测结果中控制器140的电压低于第二电压阈值时，提示车辆10启动失败。此时车载高压蓄电池120未能在控制器140的控制下将高压电转换为了低压电，车载高压蓄电池120未能对车载低压蓄电池110进行充电以及为控制器140提供低压电。控制单元240再次控制外接低压蓄电池220输出低压电，以为车辆10启动提供电能。
步骤S216、提示是否对外接低压蓄电池220进行充电。
第二提示信息还包括：当检测结果中控制器140的电压高于或等于第二电压阈值时，提示用户是否对外接低压蓄电池220进行充电。
步骤S217、对外接低压蓄电池220进行充电。
当用户选择对外接低压蓄电池220进行充电时，控制单元240可以控制外接电源20通过第二连接部261获取车辆10的低压电，从而能够对外接低压蓄电池220进行充电。
或者，还可以是控制单元240在第三电压检测中，外接低压蓄电池220的电压低于第四电压阈值时，控制单元240可以控制外接电源20通过第二连接部261获取车辆10的低压电，从而能够对外接低压蓄电池220进行充电。
步骤S218、切换单元152切换到第二电路152b。
当车辆10启动成功之后，控制单元240控制切换单元152中的切换开关152c进行切换，使第二电路152b串联在低压总线130与第一连接部151之间。由此，当点烟器160或其他装置插入第一电连接器150中，车载低压蓄电池110向通过第一电连 接器150向点烟器160或其他装置提供低压电时，可以提供过载保护。即当输送给点烟器160或其他装置的电流过大时，例如大于10A时，第二电路152b断开，从而可以避免电流过大，对点烟器160或其他装置造成损坏。
综上所述，当车辆10处于亏电状态时，可以将第二电连接器260或第二电连接器260插入车辆10上的第一电连接器150或第一电连接器150，控制单元240可以控制外接电源20中的外接低压蓄电池220为车辆10中的控制器140提供低压电，从而使车辆10可以启动。
图15是本申请实施例提供的一种计算设备300的结构性示意性图。该计算设备300包括：处理器310、存储器320、通信接口330。
应理解，图15所示的计算设备300中的通信接口330可以用于与其他设备之间进行通信。
其中，该处理器310可以与存储器320连接。该存储器320可以用于存储该程序代码和数据。因此，该存储器320可以是处理器310内部的存储装置，也可以是与处理器310独立的外部存储装置，还可以是包括处理器310内部的存储装置和与处理器310独立的外部存储装置的部件。
应理解，在本申请实施例中，该处理器310可以采用中央处理装置(central processing unit，CPU)。该处理器还可以是其它通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate Array，FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。或者该处理器310采用一个或多个集成电路，用于执行相关程序，以实现本申请实施例所提供的技术方案。
该存储器320可以包括只读存储器和随机存取存储器，并向处理器310提供指令和数据。处理器310的一部分还可以包括非易失性随机存取存储器。例如，处理器310还可以存储设备类型的信息。
在计算设备300运行时，所述处理器310执行所述存储器320中的计算机执行指令执行上述方法的操作步骤。
应理解，根据本申请实施例的计算设备300可以对应于执行根据本申请各实施例的方法中的相应主体，并且计算设备300中的各个模块的上述和其它操作和/或功能分别为了实现本实施例各方法的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的装置及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和装置的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所 述装置的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个装置或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或装置的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的装置可以是或者也可以不是物理上分开的，作为装置显示的部件可以是或者也可以不是物理装置，即可以位于一个地方，或者也可以分布到多个网络装置上。可以根据实际的需要选择其中的部分或者全部装置来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能装置可以集成在一个处理装置中，也可以是各个装置单独物理存在，也可以两个或两个以上装置集成在一个装置中。
所述功能如果以软件功能装置的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时用于执行一种多样化问题生成方法，该方法包括上述各个实施例所描述的方案中的至少之一。
本申请实施例的计算机存储介质，可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是，但不限于，电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子(非穷举的列表)包括：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本文件中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括、但不限于无线、电线、光缆、RF等等，或者上述的任意合适的组合。
可以以一种或多种程序设计语言或其组合来编写用于执行本申请操作的计算机程序代码，所述程序设计语言包括面向对象的程序设计语言—诸如Java、Smalltalk、 C++，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络，包括局域网(LAN)或广域网(WAN)，连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
注意，上述仅为本申请的较佳实施例及所运用的技术原理。本领域技术人员会理解，本申请不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本申请的保护范围。因此，虽然通过以上实施例对本申请进行了较为详细的说明，但是本申请不仅仅限于以上实施例，在不脱离本申请的构思的情况下，还可以包括更多其他等效实施例，均属于本申请的保护范畴。

Claims (27)

  1. 一种车辆启动方法，其特征在于，包括：
    获取所述车辆的第一电池的电压；
    当所述第一电池的电压低于第一电压阈值时，控制外接电源的第二电池为所述车辆供电。
  2. 根据权利要求1所述的方法，其特征在于，所述控制外接电源的第二电池为所述车辆供电，具体包括：
    控制所述第二电池通过第一电路为所述车辆供电；
    其中，所述第一电路允许的最大工作电流为第一电流阈值。
  3. 根据权利要求1或2所述的方法，其特征在于，还包括：
    当所述第一电池的电压高于第二电压阈值时，控制所述第二电池停止为所述车辆供电。
  4. 根据权利要求3所述的方法，其特征在于，所述控制所述第二电池停止为所述车辆供电，具体包括：
    控制所述外接电源通过第二电路与所述车辆连接；
    其中，所述第二电路允许的最大工作电流为第二电流阈值。
  5. 根据权利要求4所述的方法，其特征在于，在所述获取所述车辆的第一电池的电压之前，所述方法还包括：
    控制所述外接电源通过所述第二电路与所述车辆连接。
  6. 根据权利要求2所述的方法，其特征在于，还包括：
    获取所述第二电池的电压，当所述第二电池的电压低于第三电压阈值时，控制所述车辆为所述第二电池充电。
  7. 根据权利要求6所述的方法，其特征在于，所述控制所述车辆为所述第二电池充电，具体包括：
    控制所述车辆通过所述第一电路为所述第二电池充电。
  8. 根据权利要求6或7所述的方法，其特征在于，在所述获取所述第二电池的电压之后，所述方法还包括：
    根据所述第二电池的电压生成第一提示信息，当所述第二电池的电压低于所述第三电压阈值时，所述第一提示信息包括用于指示所述第二电池电量不足的信息。
  9. 一种电源，其特征在于，包括：
    电压检测单元，所述电压检测单元用于获取车辆的第一电池的电压；
    控制单元，所述控制单元用于在所述第一电池的电压低于第一电压阈值时，控制所述电源的第二电池为所述车辆供电。
  10. 根据权利要求9所述的电源，其特征在于，所述控制所述电源的第二电池为所述车辆供电，具体包括：
    控制所述第二电池通过第一电路为所述车辆供电；
    其中，所述第一电路允许的最大工作电流为第一电流阈值。
  11. 根据权利要求9或10所述的电源，其特征在于，所述控制单元还用于：
    当所述第一电池的电压高于第二电压阈值时，控制所述第二电池停止为所述车辆 供电。
  12. 根据权利要求11所述的电源，其特征在于，所述控制所述第二电池停止为所述车辆供电，具体包括：
    控制所述电源通过第二电路与所述车辆连接；
    其中，所述第二电路允许的最大工作电流为第二电流阈值。
  13. 根据权利要求12所述的电源，其特征在于，在所述获取所述车辆的第一电池的电压之前，所述控制单元还用于：
    控制所述电源通过所述第二电路与所述车辆连接。
  14. 根据权利要求10所述的电源，其特征在于，所述电压检测单元还用于：获取所述第二电池的电压；
    所述控制单元还用于当所述第二电池的电压低于第三电压阈值时，控制所述车辆为所述第二电池充电。
  15. 根据权利要求14所述的电源，其特征在于，所述控制所述车辆为所述第二电池充电，具体包括：
    控制所述车辆通过所述第一电路为所述第二电池充电。
  16. 根据权利要求14或15所述的电源，其特征在于，在所述获取所述第二电池的电压之后，所述控制单元还用于：
    根据所述第二电池的电压生成第一提示信息，当所述第二电池的电压低于所述第三电压阈值时，所述第一提示信息包括用于指示所述第二电池电量不足的信息。
  17. 根据权利要求16所述的电源，其特征在于，还包括输出单元，所述输出单元用于显示或播放所述第一提示信息。
  18. 根据权利要求9至16中任一项所述的电源，其特征在于，还包括连接单元，所述连接单元用于与所述车辆连接。
  19. 一种车辆，其特征在于，包括：
    第一电池，所述第一电池与所述车辆的至少一个控制器连接；
    连接部，所述连接部与所述第一电池和所述至少一个控制器连接，所述连接部还用于连接外接电源。
  20. 根据权利要求19中所述的车辆，其特征在于，还包括：
    切换单元，所述切换单元被配置为在第一条件下切换为第一模式；
    在所述第一模式下，所述切换单元被配置为使所述连接部通过第一电路与所述至少一个控制器连接；
    所述第一条件包括：所述第一电池的电压低于第一电压阈值，或者，所述切换单元接收第一信号，所述第一信号用于控制所述切换单元在所述第一模式下工作。
  21. 根据权利要求19或20所述的车辆，其特征在于，所述切换单元被配置为在第二条件下切换为第二模式；
    在所述第二模式下，所述切换单元被配置为使所述连接部通过第二电路与所述第一电池连接；
    所述第二条件包括：所述第一电池的电压高于第二电压阈值，或者，所述切换单元接收第二信号，所述第二信号用于控制所述切换单元在所述第二模式下工作。
  22. 根据权利要求19至21中任一项所述的车辆，其特征在于，所述切换单元被配置为在第三条件下切换为第三模式；
    在所述第三模式下，所述切换单元被配置为使所述车辆通过所述第一电路为所述连接部供电；
    所述第三条件包括：所述切换单元接收第三信号，所述第三信号用于控制所述切换单元在所述第三模式下工作。
  23. 根据权利要求19至22中任一项所述的车辆，其特征在于，所述连接部为所述车辆的点烟器接口，或者，所述连接部为所述车辆的充电接口。
  24. 根据权利要求23所述的车辆，其特征在于，还包括：
    盖板，所述盖板设置在所述车辆的轿厢内或所述车辆的外表面上与所述连接部处，用于覆盖所述连接部。
  25. 根据权利要求24所述的车辆，其特征在于，
    所述盖板为设置在所述车辆上的车标或所述车辆的车载高压蓄电池的充电接口盖板。
  26. 一种电源，其特征在于，包括至少一个处理器和至少一个存储器，所述存储器存储有程序指令，所述程序指令当被所述至少一个处理器执行时使得所述至少一个处理器执行如权利要求1-8中任一项所述的方法。
  27. 一种计算机可读存储介质，其上存储有程序指令，其特征在于，所述程序指令被计算机执行时使得所述计算机执行如权利要求1-8中任一项所述的方法。
PCT/CN2021/119109 2021-09-17 2021-09-17 一种车辆启动方法、电源及车辆 WO2023039844A1 (zh)

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