CN112078423B - Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle - Google Patents

Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle Download PDF

Info

Publication number
CN112078423B
CN112078423B CN201910505798.8A CN201910505798A CN112078423B CN 112078423 B CN112078423 B CN 112078423B CN 201910505798 A CN201910505798 A CN 201910505798A CN 112078423 B CN112078423 B CN 112078423B
Authority
CN
China
Prior art keywords
vehicle
voltage
signal
controller
power
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201910505798.8A
Other languages
Chinese (zh)
Other versions
CN112078423A (en
Inventor
王金龙
易迪华
梁海强
代康伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Electric Vehicle Co Ltd
Original Assignee
Beijing Electric Vehicle Co Ltd
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 Beijing Electric Vehicle Co Ltd filed Critical Beijing Electric Vehicle Co Ltd
Priority to CN201910505798.8A priority Critical patent/CN112078423B/en
Publication of CN112078423A publication Critical patent/CN112078423A/en
Application granted granted Critical
Publication of CN112078423B publication Critical patent/CN112078423B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The embodiment of the invention provides a vehicle high-voltage power-on control method, a vehicle controller, a vehicle system and a vehicle, wherein the control method comprises the following steps: controlling the whole vehicle low-voltage system to be electrified according to the received first signal sent by the one-key starting controller; when the fact that the power-on of the whole vehicle low-voltage system is completed is detected, a first wake-up signal is sent to a direct current converter, and the whole vehicle high-voltage system is controlled to be powered on; and when the complete electrification of the high-voltage system of the whole vehicle is detected, sending a first enabling signal and a control signal to the direct-current converter. In the technical scheme provided by the invention, after the whole vehicle controller is electrified, the direct current converter is controlled to be switched to a working state, the high voltage of the power battery is converted into low voltage to supply power to the whole vehicle low voltage system and charge the storage battery, so that the consumption of the storage battery only supplied by the storage battery after the whole vehicle is electrified at low voltage is reduced, and the storage battery is beneficial to avoiding the power shortage of the storage battery caused by long-time power supply of the storage battery and the influence on the next starting of the vehicle.

Description

Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a vehicle high-voltage electrifying control method, a vehicle control unit, a vehicle system and a vehicle.
Background
In the prior art of electric automobiles, when a driver only presses a start-stop button, the whole automobile is powered on at low voltage, most of low-voltage controllers and electric equipment are awakened and are in a working state, when the driver uses the low-voltage electric equipment, the low-voltage current of the whole automobile can reach more than 10A, and a low-voltage power supply of the whole automobile is a 12V low-voltage storage battery. Under this kind of operating mode for a long time, low-voltage battery electric quantity can be consumed by fast, leads to the battery to take place the insufficient voltage easily. When the driver starts the vehicle next time, the vehicle runs the risk of not starting. Meanwhile, when the whole vehicle is electrified at low voltage, the air conditioner panel enters a controllable state, but the driving motor of the air conditioner is not supplied with electric energy, and when a driver wants to use the air conditioner, the air conditioner cannot work, and the driver is not reminded of the operation of the air conditioner, so that the use experience is poor.
Disclosure of Invention
The technical purpose to be achieved by the embodiment of the invention is to provide a vehicle high-voltage power-on control method, a vehicle controller, a system and a vehicle, which are used for solving the problem that the current vehicle has the risk of power shortage of a storage battery when a vehicle low-voltage system is powered on for a long time and is easy to influence the next starting of the vehicle.
In order to solve the above technical problem, an embodiment of the present invention provides a control method for vehicle high voltage power-on, which is applied to a vehicle controller, and includes:
controlling the whole vehicle low-voltage system to be electrified according to a received first signal sent by the one-key starting controller, wherein the first signal is generated when the one-key starting controller detects that a brake pedal is not trampled and a starting and stopping key is pressed when the vehicle is in an OFF gear, and controls an unloading relay connected between the whole vehicle controller and the one-key starting controller to be communicated;
when the fact that the power-on of the whole vehicle low-voltage system is completed is detected, a first wake-up signal is sent to a direct current converter, and the whole vehicle high-voltage system is controlled to be powered on;
when the fact that the whole vehicle high-voltage system is electrified is detected, a first enabling signal and a control signal are sent to the direct-current converter, and the control signal is used for controlling the direct-current converter to be switched to a working state.
Preferably, the control method as described above, further comprising:
sending a second wake-up signal to the air conditioning system controller;
and when the complete electrification of the whole vehicle high-voltage system is detected, sending a second enabling signal to the air-conditioning system controller.
Specifically, the control method as described above, after the step of sending the first enable signal and the control signal to the dc converter, further includes:
when a power anti-theft authentication request sent by the one-key starting controller is received, performing power anti-theft authentication with the one-key starting controller, and obtaining a power anti-theft authentication result;
and if the power anti-theft authentication result is that the authentication is successful, sending a third awakening signal and a third enabling signal to the driving motor controller, and sending an indicating signal to the instrument, wherein the indicating signal is used for controlling the instrument to light a drivable state signal lamp.
Further, the control method as described above, after the step of obtaining the power theft prevention authentication result, further includes:
and if the power anti-theft authentication result is authentication failure, sending a forbidding enabling signal to the driving motor controller, and sending warning information to the instrument, wherein the warning information is used for indicating the power anti-theft authentication failure.
Preferably, after the step of detecting that the power-on of the high-voltage system of the entire vehicle is completed, the control method further includes:
when a second signal sent by the one-key starting controller is received, detecting the high-voltage demand state of the whole vehicle, wherein the second signal is a signal generated when the one-key starting controller detects that a brake pedal is not stepped and a starting and stopping key is pressed down and controls an unloading relay to be disconnected;
and when the high-voltage demand state of the whole vehicle is no high-voltage demand, controlling the whole vehicle to be electrified under high voltage.
Preferably, after the step of detecting that the power-on of the high-voltage system of the entire vehicle is completed, the control method further includes:
when detecting that the whole vehicle has a high-voltage low-voltage fault, controlling the high-voltage low-voltage of the whole vehicle, wherein the high-voltage low-voltage fault comprises: at least one of a high voltage failure, a collision failure, and a low remaining capacity of the power battery of the high voltage system and the high voltage component.
Specifically, in the control method, the step of controlling the voltage of the whole vehicle under the high voltage includes:
respectively sending a forbidding enabling signal to the direct current exchanger, the air conditioning system controller and the motor controller;
when the direct current exchanger, the air conditioning system controller and the motor controller are detected to be in a stop state, detecting the current value of the direct current bus;
and when the current value of the direct current bus is smaller than a preset threshold value, the whole vehicle is guided to be pressed down under high voltage.
Another preferred embodiment of the present invention also provides a vehicle control unit, including:
the first processing module is used for controlling the whole vehicle low-voltage system to be electrified according to a received first signal sent by the one-key starting controller, wherein the first signal is generated when the one-key starting controller detects that a brake pedal is not trampled and a start-stop key is pressed when the vehicle is in an OFF gear, and controls an unloading relay connected between the whole vehicle controller and the one-key starting controller to be communicated;
the second processing module is used for sending a first wake-up signal to the direct current converter and controlling the whole vehicle high-voltage system to be powered on after the fact that the whole vehicle low-voltage system is powered on is detected;
and the third processing module is used for sending a first enabling signal and a control signal to the direct current converter after the high-voltage system of the whole vehicle is detected to be powered on, and the control signal is used for controlling the direct current converter to be switched to a working state.
Preferably, the vehicle control unit as described above further includes:
the fourth processing module is used for sending the second wake-up signal to the air conditioning system controller;
and the fifth processing module is used for sending a second enabling signal to the air conditioning system controller after detecting that the whole vehicle high-voltage system is powered on.
Specifically, the vehicle control unit as described above further includes:
the sixth processing module is used for performing power anti-theft authentication with the one-key starting controller when receiving a power anti-theft authentication request sent by the one-key starting controller and obtaining a power anti-theft authentication result;
and the seventh processing module is used for sending a third awakening signal and a third enabling signal to the driving motor controller and sending an indicating signal to the instrument if the power anti-theft authentication result is that the authentication is successful, wherein the indicating signal is used for controlling the instrument to light the driving-capable state signal lamp.
Further, the vehicle control unit as described above further includes:
and the eighth processing module is used for sending a forbidding enabling signal to the driving motor controller and sending warning information to the instrument if the power anti-theft authentication result is authentication failure, wherein the warning information is used for indicating the power anti-theft authentication failure.
Preferably, the vehicle control unit as described above further includes:
the ninth processing module is used for detecting the high-voltage demand state of the whole vehicle when receiving a second signal sent by the one-key starting controller, wherein the second signal is a signal generated when the one-key starting controller detects that the brake pedal is not trampled and the start-stop key is pressed down and controls the unloading relay to be disconnected;
and the tenth processing module is used for controlling the whole vehicle to be electrified under high voltage when the whole vehicle is in a high voltage demand state without high voltage demand.
Preferably, the vehicle control unit as described above further includes:
the eleventh processing module is used for controlling the whole vehicle to be powered down under high voltage when the whole vehicle is detected to have the high-voltage power-down fault, wherein the high-voltage power-down fault comprises: at least one of a high voltage failure, a collision failure, and a low remaining capacity of the power battery of the high voltage system and the high voltage component.
Specifically, as described above, the tenth and eleventh processing modules include:
the first processing unit is used for respectively sending a forbidding enabling signal to the direct current exchanger, the air conditioning system controller and the motor controller;
the second processing unit is used for detecting the current value of the direct current bus when the direct current exchanger, the air conditioning system controller and the motor controller are detected to be in a stop state;
and the third processing unit is used for guiding the whole vehicle to be pressed down under high voltage when the current value of the direct current bus is smaller than a preset threshold value.
Still another preferred embodiment of the present invention provides a vehicle high voltage power-on control system, including:
the system comprises an instrument, a direct current converter, an air conditioning system controller, a motor controller, a one-key starting controller, a brake pedal, a starting and stopping button, a whole vehicle low-voltage system, a whole vehicle high-voltage system and the whole vehicle controller, wherein the one-key starting controller is connected with the brake pedal and the starting and stopping button;
the vehicle control unit has stored therein a computer program which, when executed, carries out the steps of the control method described above.
Still another preferred embodiment of the present invention also provides a vehicle including: the vehicle high-voltage power-on control system is described above.
Compared with the prior art, the vehicle high-voltage power-on control method, the vehicle control unit, the system and the vehicle provided by the embodiment of the invention have the following beneficial effects:
in a specific embodiment of the invention, when the vehicle control unit receives a first signal generated when the one-key starting controller detects that a brake pedal is not stepped and a start-stop key is pressed when the vehicle is in an OFF gear, and controls an unloading relay connected between the vehicle control unit and the one-key starting controller to be communicated, the vehicle control unit controls a low-voltage system of the vehicle to be electrified according to the first signal, sequentially wakes up a direct current converter after the low-voltage system of the vehicle is electrified, and controls a high-voltage system of the vehicle to be electrified; after the whole vehicle high-voltage system is electrified, a first enabling signal and a control signal are sent to the direct-current converter, the direct-current converter is controlled to be switched to a working state, high voltage of the power battery is converted into low voltage electricity through the direct-current converter, the power is supplied to the whole vehicle low-voltage system, the storage battery is charged, consumption of the storage battery due to power supply of the storage battery after the whole vehicle is electrified at low voltage is reduced, and the storage battery is beneficial to avoiding power shortage of the storage battery due to long-time power supply of the storage battery and influence on next starting of the vehicle.
Drawings
Fig. 1 is a schematic flow chart of a control method applied to a vehicle control unit according to the present invention;
fig. 2 is a second flowchart of a control method applied to a vehicle control unit according to the present invention;
fig. 3 is a third schematic flow chart of a control method applied to a vehicle control unit according to the present invention;
fig. 4 is a fourth schematic flowchart of the control method applied to the vehicle control unit according to the present invention;
FIG. 5 is a fifth flowchart illustrating a control method applied to a vehicle control unit according to the present invention;
FIG. 6 is a schematic structural diagram of the vehicle control unit of the present invention;
fig. 7 is a schematic structural diagram of a vehicle high-voltage power-on control system according to the invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Referring to fig. 1, a preferred embodiment of the present invention provides a control method for vehicle high voltage power-up, which is applied to a vehicle controller, and includes:
step S101, controlling a whole vehicle low-voltage system to be electrified according to a received first signal sent by a one-key starting controller, wherein the first signal is a signal generated when the one-key starting controller detects that a brake pedal is not stepped and a start-stop key is pressed when the vehicle is in an OFF gear, and controls an unloading relay connected between a whole vehicle controller and the one-key starting controller to be communicated;
step S102, when the fact that the power-on of the whole vehicle low-voltage system is completed is detected, a first wake-up signal is sent to a direct current converter, and the whole vehicle high-voltage system is controlled to be powered on;
and S103, when the complete electrification of the whole vehicle high-voltage system is detected, sending a first enabling signal and a control signal to the direct-current converter, wherein the control signal is used for controlling the direct-current converter to be switched to a working state.
In a specific embodiment of the invention, when the vehicle control unit receives a first signal generated when the one-key starting controller detects that a brake pedal is not stepped and a start-stop key is pressed when the vehicle is in an OFF gear, and controls an unloading relay connected between the vehicle control unit and the one-key starting controller to be communicated, the vehicle control unit controls a low-voltage system of the vehicle to be electrified according to the first signal, sequentially wakes up a direct current converter after the low-voltage system of the vehicle is electrified, and controls a high-voltage system of the vehicle to be electrified, namely, the vehicle is switched to an ON gear; after the whole vehicle high-voltage system is electrified, a first enabling signal and a control signal are sent to the direct-current converter, the direct-current converter is controlled to be switched to a working state, high voltage of the power battery is converted into low voltage electricity through the direct-current converter, the power is supplied to the whole vehicle low-voltage system, the storage battery is charged, consumption of the storage battery due to power supply of the storage battery after the whole vehicle is electrified at low voltage is reduced, and the storage battery is beneficial to avoiding power shortage of the storage battery due to long-time power supply of the storage battery and influence on next starting of the vehicle.
Optionally, since the brake pedal is not stepped on at this time, the one-key start controller does not send power anti-theft authentication to the vehicle controller, and at this time, in order to avoid that the user has an intention to start the vehicle but has an operation error, a prompt message is sent to the meter to be displayed or sent to the playing device to be subjected to voice prompt, where the prompt message is used to indicate that the brake pedal needs to be stepped on to start the vehicle, and specific display messages thereof include, but are not limited to, "please step on the brake to start", "please step on the brake and press the start-stop button to start". The method is beneficial to guiding the user to start the vehicle correctly, and prevents the user from forgetting to press the brake pedal when starting the vehicle, so that the vehicle cannot be started and troubles caused by the failure are prevented.
Referring to fig. 2, preferably, the control method as described above, further includes:
step S201, sending a second wake-up signal to an air conditioning system controller;
and step S202, when the complete electrification of the whole vehicle high-voltage system is detected, sending a second enabling signal to the air-conditioning system controller.
In an embodiment of the present invention, the control method further includes: and when the complete vehicle low-voltage system is detected to be powered on, sending a second wake-up signal to the air conditioning system controller, and when the complete vehicle high-voltage system is detected to be powered on, sending a second enabling signal to the air conditioning system controller, so that a user can send an instruction to the air conditioning system controller by controlling the air conditioning panel, and further control the starting, the closing and the mode switching after the starting of the air conditioning system. Namely, when the vehicle is not in a drivable state, the user can use the air conditioning system, which is beneficial to improving the comfort of the user.
Meanwhile, when the vehicle wakes up and controls the direct current exchanger or the air conditioning system controller, the power system of the vehicle is not woken up and controlled, namely the static power system is enabled on the premise that the user is not determined to drive the vehicle, so that the unexpected torque generated by the whole vehicle is avoided, and the safety of the vehicle and the user is ensured.
Referring to fig. 3, in particular, the control method as described above, after the step of sending the first enable signal and the control signal to the dc converter, further includes:
step S301, when a power anti-theft authentication request sent by the one-key starting controller is received, performing power anti-theft authentication with the one-key starting controller, and obtaining a power anti-theft authentication result;
step S302, if the power anti-theft authentication result is that the authentication is successful, a third wake-up signal and a third enable signal are sent to the driving motor controller, and an indication signal is sent to the instrument, wherein the indication signal is used for controlling the instrument to light a drivable state signal lamp.
In the embodiment of the invention, when the vehicle controller receives a power anti-theft authentication request sent by the one-key starting controller, the vehicle controller performs power anti-theft authentication with the one-key starting controller and obtains a power anti-theft authentication result, if the power anti-theft authentication result is successful, the vehicle can be safely started, at this time, a third awakening signal and a third enabling signal are sent to the driving motor controller, so that the driving motor controller is awakened and enters an enabling state, meanwhile, an indicating signal for lightening a drivable state signal lamp is sent to the instrument, and the instrument lightens the drivable state signal lamp according to the indicating signal, so that a user knows that the vehicle is successfully started and can drive. The power anti-theft authentication request is sent when the one-key starting controller detects that the brake pedal is stepped and the start-stop key is pressed down or detects that the brake pedal is stepped after the whole vehicle high-voltage system is powered on.
Further, the control method as described above, after step S301 of obtaining the power theft prevention authentication result, further includes:
step S303, if the power anti-theft authentication result is authentication failure, sending a forbidding enabling signal to the driving motor controller, and sending warning information to the instrument, wherein the warning information is used for indicating the power anti-theft authentication failure.
In the embodiment of the invention, if the power anti-theft authentication result is authentication failure, an enable forbidding signal is sent to the drive motor controller, and warning information for indicating the power anti-theft authentication failure is sent to the instrument. The method and the system are convenient for users to know the reason of vehicle starting failure, relieve user troubles, provide solutions for the users, guide the users to take correct safety measures and reduce user loss. At this time, the electrified high-voltage system, the direct-current converter and the air conditioning system which start to work cannot be influenced, and comfort and use experience of a user are guaranteed.
Referring to fig. 4, preferably, the control method as described above, after the step of detecting that the power-on of the vehicle high-voltage system is completed, further includes:
step S401, when a second signal sent by the one-key starting controller is received, detecting the high-voltage demand state of the whole vehicle, wherein the second signal is a signal generated when the one-key starting controller detects that a brake pedal is not stepped and a starting and stopping key is pressed down and controls an unloading relay to be disconnected;
and S402, controlling the whole vehicle to be electrified under high voltage when the whole vehicle is in a high voltage demand state without high voltage demand.
In the embodiment of the invention, when the one-key starting controller detects that the brake pedal is not stepped and the starting and stopping key is pressed, the unloading relay is controlled to be disconnected, and the signal generated at the moment is used as a second signal to be sent to the vehicle controller, the vehicle controller determines that a user has the intention of pressing down the vehicle according to the second signal, and the high-voltage demand state of the vehicle is detected at the moment, namely whether a high-voltage component of a vehicle high-voltage system runs or not is detected. When no high-voltage component of the whole vehicle high-voltage system runs, determining that the whole vehicle high-voltage demand state is no high-voltage demand, and controlling the whole vehicle high-voltage to be low-voltage at the moment.
Optionally, when the vehicle is in a drivable state, the unloading relay is controlled to be switched off by one-key starting control as long as the start-stop key is detected to be pressed, the second signal is generated and sent to the vehicle controller, and the subsequent step of detecting the high-voltage demand state of the vehicle is performed.
Preferably, after the step of detecting that the power-on of the high-voltage system of the entire vehicle is completed, the control method further includes:
when detecting that the whole vehicle has a high-voltage low-voltage fault, controlling the high-voltage low-voltage of the whole vehicle, wherein the high-voltage low-voltage fault comprises: at least one of a high voltage failure, a collision failure, and a low remaining capacity of the power battery of the high voltage system and the high voltage component.
In the embodiment of the invention, after the high-voltage system of the whole vehicle is detected to be powered on, if the whole vehicle is detected to have a high-voltage low-voltage fault, the potential safety hazard in continuous running is determined, and the high-voltage low-voltage of the whole vehicle is controlled at the moment, so that the safety of the vehicle and users is ensured, and traffic accidents are avoided.
Specifically referring to fig. 5, in the control method, the step of controlling the voltage of the whole vehicle under the high voltage includes:
step S501, respectively sending a forbidding enabling signal to a direct current exchanger, an air conditioning system controller and a motor controller;
step S502, when detecting that the direct current exchanger, the air conditioning system controller and the motor controller are all in a stop state, detecting the current value of the direct current bus;
in step S503, when the current value of the dc bus is smaller than a preset threshold, the entire vehicle is guided to be powered down under high voltage.
In the embodiment of the invention, the step of controlling the voltage of the whole vehicle under high voltage comprises the following steps: and sending a forbidding enabling signal to the direct current exchanger, the air conditioning system controller and the motor controller to enable the direct current exchanger, the air conditioning system controller and the motor controller to start to stop working, wherein when the motor controller receives the forbidding enabling signal, if the torque output of the driving motor exists, the motor controller controls the driving motor to perform gradient torque reduction so as to avoid vehicle shaking and ensure the comfort of users. When the direct current exchanger, the air conditioning system controller and the motor controller are detected to be in a stop state, the current value of the direct current bus is detected, and when the current value of the direct current bus is smaller than a preset threshold value, the whole vehicle is guided to be powered down under a high voltage, so that the high voltage relay is disconnected after the whole vehicle high voltage components are in a zero power state, the high voltage relay is prevented from being adhered due to the fact that the high voltage relay is disconnected under the condition that the high voltage components have current, and the safety power-down of the vehicle is guaranteed.
Referring to fig. 6, another preferred embodiment of the present invention also provides a vehicle control unit, including:
the first processing module 601 is configured to control a whole vehicle low-voltage system to be powered on according to a received first signal sent by the one-key start controller, where the first signal is a signal generated when the one-key start controller detects that a brake pedal is not stepped and a start-stop key is pressed when the vehicle is in an OFF gear, and controls an unloading relay connected between the whole vehicle controller and the one-key start controller to be communicated;
the second processing module 602 is configured to send a first wake-up signal to the dc converter and control the entire vehicle high-voltage system to be powered on after it is detected that the entire vehicle low-voltage system is powered on;
the third processing module 603 is configured to send a first enable signal and a control signal to the dc converter after detecting that the power-on of the entire vehicle high-voltage system is completed, where the control signal is used to control the dc converter to switch to a working state.
Preferably, the vehicle control unit as described above further includes:
the fourth processing module is used for sending the second wake-up signal to the air conditioning system controller;
and the fifth processing module is used for sending a second enabling signal to the air conditioning system controller after detecting that the whole vehicle high-voltage system is powered on.
Specifically, the vehicle control unit as described above further includes:
the sixth processing module is used for performing power anti-theft authentication with the one-key starting controller when receiving a power anti-theft authentication request sent by the one-key starting controller and obtaining a power anti-theft authentication result;
and the seventh processing module is used for sending a third awakening signal and a third enabling signal to the driving motor controller and sending an indicating signal to the instrument if the power anti-theft authentication result is that the authentication is successful, wherein the indicating signal is used for controlling the instrument to light the driving-capable state signal lamp.
Further, the vehicle control unit as described above further includes:
and the eighth processing module is used for sending a forbidding enabling signal to the driving motor controller and sending warning information to the instrument if the power anti-theft authentication result is authentication failure, wherein the warning information is used for indicating the power anti-theft authentication failure.
Preferably, the vehicle control unit as described above further includes:
the ninth processing module is used for detecting the high-voltage demand state of the whole vehicle when receiving a second signal sent by the one-key starting controller, wherein the second signal is a signal generated when the one-key starting controller detects that the brake pedal is not trampled and the start-stop key is pressed down and controls the unloading relay to be disconnected;
and the tenth processing module is used for controlling the whole vehicle to be electrified under high voltage when the whole vehicle is in a high voltage demand state without high voltage demand.
Preferably, the vehicle control unit as described above further includes:
the eleventh processing module is used for controlling the whole vehicle to be powered down under high voltage when the whole vehicle is detected to have the high-voltage power-down fault, wherein the high-voltage power-down fault comprises: at least one of a high voltage failure, a collision failure, and a low remaining capacity of the power battery of the high voltage system and the high voltage component.
Specifically, as described above, the tenth and eleventh processing modules include:
the first processing unit is used for respectively sending a forbidding enabling signal to the direct current exchanger, the air conditioning system controller and the motor controller;
the second processing unit is used for detecting the current value of the direct current bus when the direct current exchanger, the air conditioning system controller and the motor controller are detected to be in a stop state;
and the third processing unit is used for guiding the whole vehicle to be pressed down under high voltage when the current value of the direct current bus is smaller than a preset threshold value.
The embodiment of the vehicle controller of the invention is the vehicle controller corresponding to the embodiment of the vehicle high-voltage electrification control method applied to the vehicle controller, and all implementation means in the embodiment of the method are suitable for the embodiment of the vehicle controller, and the same technical effect can be achieved.
Referring to fig. 7, still another preferred embodiment of the present invention further provides a vehicle high-voltage power-on control system, including:
the system comprises an instrument 1, a direct current converter 2, an air conditioning system controller 3, a motor controller 4, a one-key starting controller 5, a brake pedal 6, a start-stop button 7, a whole vehicle low-voltage system 8, a whole vehicle high-voltage system 9 and a whole vehicle controller 10 as described above, wherein the one-key starting controller 5 is connected with the brake pedal 6 and the start-stop button 7, and the whole vehicle controller 10 is in communication connection with the instrument 1, the direct current converter 2, the air conditioning system controller 3, the whole vehicle low-voltage system 8, the whole vehicle high-voltage system 9, the one-key starting controller 5 and the motor controller 4 and is connected with the one-key starting controller 5 through an unloading relay 11;
the vehicle control unit 10 stores a computer program which, when executed, carries out the steps of the control method described above.
In the embodiment of the invention, when the vehicle high-voltage power-on control system is used, the steps of the control method can be realized through the communication connection with the instrument 1, the direct current converter 2, the air conditioning system controller 3, the vehicle low-voltage system 8, the vehicle high-voltage system 9, the one-key starting controller 5 and the motor controller 5, and the connection of the vehicle controller 10 with the one-key starting controller 5 through the unloading relay 11, so that when the vehicle uses the vehicle high-voltage power-on control system, the direct current converter 2 can be used for supplying power to the low-voltage system, the influence of power shortage on the next starting of the vehicle is avoided, the use of the air conditioning system can be realized when the vehicle is not started, the comfort of a user is favorably ensured, the safe power-off of the vehicle high-voltage system can be ensured, and the safety of the vehicle is further ensured.
Still another preferred embodiment of the present invention also provides a vehicle including: the vehicle high-voltage power-on control system is described above.
In the embodiment of the invention, when the vehicle is used, the steps of the control method can be realized through the communication connection between the vehicle high-voltage power-on control system and the instrument 1, the direct current converter 2, the air conditioning system controller 3, the vehicle low-voltage system 8, the vehicle high-voltage system 9, the one-key starting controller 5 and the motor controller 5, and the connection between the vehicle controller 10 and the one-key starting controller 5 through the unloading relay 11, so that when the vehicle uses the vehicle high-voltage power-on control system, the direct current converter 2 can be used for supplying power to the low-voltage system, the influence of power shortage on the next starting of the vehicle can be avoided, the use of the air conditioning system can be realized when the vehicle is not started, the comfort of a user can be ensured, the safe power-off of the vehicle high-voltage system can be ensured, and the safety of the vehicle can be further ensured.
For the sake of simplicity and clarity, it does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. A control method for vehicle high-voltage electrification is applied to a vehicle control unit and is characterized by comprising the following steps:
controlling the whole vehicle low-voltage system to be electrified according to a received first signal sent by a one-key starting controller, wherein the first signal is a signal generated when the one-key starting controller detects that a brake pedal is not stepped and a starting and stopping key is pressed when a vehicle is in an OFF gear, and controls an unloading relay connected between a whole vehicle controller and the one-key starting controller to be communicated;
when the fact that the power-on of the whole vehicle low-voltage system is completed is detected, a first wake-up signal is sent to a direct current converter, and the whole vehicle high-voltage system is controlled to be powered on;
when the fact that the power-on of a finished automobile high-voltage system is completed is detected, a first enabling signal and a control signal are sent to the direct-current converter, the control signal is used for controlling the direct-current converter to be switched to a working state, the direct-current converter converts high-voltage electricity of a power battery into low-voltage electricity, power is supplied to the finished automobile low-voltage system, and a low-voltage storage battery is charged;
the control method further comprises the following steps: when the fact that the whole vehicle low-voltage system is electrified is detected, sending a second awakening signal to an air conditioning system controller;
and when the complete electrification of the whole vehicle high-voltage system is detected, sending a second enabling signal to the air conditioning system controller.
2. The method of claim 1, wherein the step of sending the first enable signal and the control signal to the dc converter is followed by the step of:
when a power anti-theft authentication request sent by the one-key starting controller is received, performing power anti-theft authentication with the one-key starting controller, and obtaining a power anti-theft authentication result;
and if the power anti-theft authentication result is that the authentication is successful, sending a third awakening signal and a third enabling signal to the driving motor controller, and sending an indicating signal to the instrument, wherein the indicating signal is used for controlling the instrument to light a running state signal lamp.
3. The control method according to claim 2, wherein the step of obtaining the power theft authentication result is followed by further comprising:
and if the power anti-theft authentication result is authentication failure, sending a disabling signal to the driving motor controller, and sending warning information to the instrument, wherein the warning information is used for indicating the power anti-theft authentication failure.
4. The control method according to claim 2, characterized by further comprising, after the step of detecting completion of power-on of the entire vehicle high-voltage system:
when a second signal sent by the one-key starting controller is received, detecting a high-voltage demand state of the whole vehicle, wherein the second signal is a signal generated when the one-key starting controller detects that the brake pedal is not stepped on and the starting and stopping key is pressed down and controls the unloading relay to be disconnected;
and when the high-voltage demand state of the whole vehicle is no high-voltage demand, controlling the whole vehicle to be electrified under high voltage.
5. The control method according to claim 2, characterized by further comprising, after the step of detecting completion of power-on of the entire vehicle high-voltage system:
when detecting that the whole vehicle has a high-voltage low-voltage fault, controlling the high-voltage low-voltage of the whole vehicle, wherein the high-voltage low-voltage fault comprises: at least one of a high voltage failure, a collision failure, and a low remaining capacity of the power battery of the high voltage system and the high voltage component.
6. The control method according to claim 4 or 5, wherein the step of controlling the overall vehicle high voltage down includes:
respectively sending a forbidding enabling signal to the direct current exchanger, the air conditioning system controller and the motor controller;
when the direct current exchanger, the air conditioning system controller and the motor controller are detected to be in a stop state, detecting the current value of a direct current bus;
and when the current value of the direct current bus is smaller than a preset threshold value, the whole vehicle is guided to be pressed down under high voltage.
7. A vehicle control unit, comprising:
the first processing module is used for controlling the whole vehicle low-voltage system to be powered on according to a received first signal sent by the one-key starting controller, wherein the first signal is generated when the one-key starting controller detects that a brake pedal is not trampled and a start-stop key is pressed when a vehicle is in an OFF gear, and controls an unloading relay connected between a whole vehicle controller and the one-key starting controller to be communicated;
the second processing module is used for sending a first wake-up signal to the direct current converter and controlling the whole vehicle high-voltage system to be electrified after the fact that the whole vehicle low-voltage system is electrified is detected;
the third processing module is used for sending a first enabling signal and a control signal to the direct current converter after the high-voltage system of the whole vehicle is detected to be powered on, wherein the control signal is used for controlling the direct current converter to be switched to a working state, and the direct current converter converts high-voltage electricity of a power battery into low-voltage electricity to supply power for the low-voltage system of the whole vehicle and charge a low-voltage storage battery;
the fourth processing module is used for sending a second awakening signal to the air conditioning system controller after the low-voltage system of the whole vehicle is detected to be powered on;
and the fifth processing module is used for sending a second enabling signal to the air conditioning system controller after detecting that the whole vehicle high-voltage system is powered on.
8. A vehicle high voltage power-on control system, comprising:
the vehicle control system comprises an instrument, a direct current converter, an air conditioning system controller, a motor controller, a one-key starting controller, a brake pedal, a starting and stopping button, a vehicle low-voltage system, a vehicle high-voltage system and the vehicle control unit as claimed in claim 7, wherein the one-key starting controller is connected with the brake pedal and the starting and stopping button, and the vehicle control unit is in communication connection with the instrument, the direct current converter, the air conditioning system controller, the vehicle low-voltage system, the vehicle high-voltage system, the one-key starting controller and the motor controller and is connected with the one-key starting controller through an unloading relay;
the vehicle control unit has stored therein a computer program which, when executed, carries out the steps of the control method according to one of claims 1 to 6.
9. A vehicle, characterized by comprising: the vehicle high voltage power-on control system according to claim 8.
CN201910505798.8A 2019-06-12 2019-06-12 Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle Active CN112078423B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910505798.8A CN112078423B (en) 2019-06-12 2019-06-12 Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910505798.8A CN112078423B (en) 2019-06-12 2019-06-12 Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle

Publications (2)

Publication Number Publication Date
CN112078423A CN112078423A (en) 2020-12-15
CN112078423B true CN112078423B (en) 2022-03-29

Family

ID=73734458

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910505798.8A Active CN112078423B (en) 2019-06-12 2019-06-12 Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle

Country Status (1)

Country Link
CN (1) CN112078423B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113147632B (en) * 2021-05-17 2023-03-07 中国第一汽车股份有限公司 Vehicle control method and device, vehicle and storage medium
CN113580938B (en) * 2021-05-28 2023-08-04 江西五十铃汽车有限公司 Power-on and power-off control method for diesel range-extending light truck
CN113320491A (en) * 2021-07-16 2021-08-31 重庆金康赛力斯新能源汽车设计院有限公司 Controller upgrading method and system
CN113954783B (en) * 2021-10-29 2022-12-23 东风商用车有限公司 Anti-theft vehicle method based on drive motor control

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107323265A (en) * 2016-04-28 2017-11-07 长城汽车股份有限公司 Hybrid vehicle power-on and power-off control method and system
CN107719126A (en) * 2016-08-11 2018-02-23 湖南中车时代电动汽车股份有限公司 A kind of plug-in hybrid-power automobile high-pressure control device and its high pressure powering method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3260040B2 (en) * 1994-07-06 2002-02-25 サンデン株式会社 Control device for air conditioner for electric vehicle
JP3736300B2 (en) * 2000-06-19 2006-01-18 株式会社日立製作所 Automobile and power supply device thereof
CN102501770B (en) * 2011-11-03 2013-09-25 中国科学院电工研究所 Electrical system for pure electric vehicle
CN104590027B (en) * 2013-10-31 2017-02-15 北汽福田汽车股份有限公司 High-voltage switching-off control method and system of automobile and automobile with high-voltage switching-off control system
JP6314442B2 (en) * 2013-11-21 2018-04-25 スズキ株式会社 In-vehicle device controller
CN107199891B (en) * 2017-05-23 2020-05-26 北京新能源汽车股份有限公司 Fuel cell automobile power-on and power-off control method, whole automobile controller and electric automobile
CN208164936U (en) * 2018-05-14 2018-11-30 北京新能源汽车股份有限公司 A kind of display screen control system and electric car
CN109080582B (en) * 2018-08-20 2020-06-09 北京新能源汽车股份有限公司 Vehicle starting control method and device and automobile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107323265A (en) * 2016-04-28 2017-11-07 长城汽车股份有限公司 Hybrid vehicle power-on and power-off control method and system
CN107719126A (en) * 2016-08-11 2018-02-23 湖南中车时代电动汽车股份有限公司 A kind of plug-in hybrid-power automobile high-pressure control device and its high pressure powering method

Also Published As

Publication number Publication date
CN112078423A (en) 2020-12-15

Similar Documents

Publication Publication Date Title
CN112078423B (en) Vehicle high-voltage power-on control method, vehicle control unit, system and vehicle
JP5418301B2 (en) In-vehicle charging controller
CN108146254B (en) Control method and device of range extender
CN110254237B (en) Method for controlling power-on and power-off mode of electric automobile
CN112677766A (en) BMS-based intelligent electric vehicle power supplementing method and system
CN107323433B (en) Fault detection and maintenance method and device for vehicle and storage medium
CN102107632A (en) Method for controlling state of vehicle electronic-control units serving as network nodes in CAN (controller area network) network
CN110329037B (en) Control method of parking air conditioner
EP4365015A1 (en) Vehicle control method and apparatus, and vehicle
CN110329036B (en) Power supply control method of parking air conditioner
JP6812771B2 (en) Power control unit
JP2015091157A (en) Charging control device, vehicle, vehicle charging system, charging control method, and program
CN112319315A (en) Fuel cell control method, device and storage medium
CN112537205A (en) Power-saving mode control method and device and electric automobile
CN115230493A (en) Control method, system and equipment of range-extending motor home and computer readable storage medium
CN113147484A (en) Control method, device and system for DC (direct current) scheduled charging
CN114655146B (en) Vehicle transportation mode control method, device and equipment
CN112373305B (en) Hydrogenation control method and device
CN111016662B (en) Fuel cell passenger car power-off control method and system
JP2015050891A (en) On-vehicle charger
CN112078484A (en) Control method for vehicle starting reminding, vehicle control unit, system and vehicle
CN112389199A (en) Vehicle-mounted power supply control system, electric vehicle and vehicle-mounted power supply control method
CN116799906A (en) Vehicle power supply method and system and automobile
CN113964892B (en) Intelligent power supplementing method for vehicle-mounted storage battery
CN114643865B (en) Power-on method and device and automobile

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant