CN116512908A - Vehicle on-board power supply control method, device, computer equipment and storage medium - Google Patents

Vehicle on-board power supply control method, device, computer equipment and storage medium Download PDF

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Publication number
CN116512908A
CN116512908A CN202310458571.9A CN202310458571A CN116512908A CN 116512908 A CN116512908 A CN 116512908A CN 202310458571 A CN202310458571 A CN 202310458571A CN 116512908 A CN116512908 A CN 116512908A
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CN
China
Prior art keywords
power
power supply
key switch
state
switch
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.)
Pending
Application number
CN202310458571.9A
Other languages
Chinese (zh)
Inventor
胡金蕊
庄晓
张小龙
郭维杰
曹晓玉
范树兴
王鹏
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.)
FAW Jiefang Automotive Co Ltd
FAW Jiefang Qingdao Automobile Co Ltd
Original Assignee
FAW Jiefang Automotive Co Ltd
FAW Jiefang Qingdao Automobile 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 FAW Jiefang Automotive Co Ltd, FAW Jiefang Qingdao Automobile Co Ltd filed Critical FAW Jiefang Automotive Co Ltd
Priority to CN202310458571.9A priority Critical patent/CN116512908A/en
Publication of CN116512908A publication Critical patent/CN116512908A/en
Pending legal-status Critical Current

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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
    • 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
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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

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

Abstract

The present application relates to a vehicle on-board power supply control method, apparatus, computer device, storage medium, and computer program product. The method comprises the following steps: acquiring the state of at least one of a key switch and an upper switch; under the condition that the upper mounting switch is in an on state, when receiving a closing signal from the key switch, stopping supplying power to the chassis system, and maintaining the power supply state of the upper mounting system; when the key switch is in an off state and an on signal from the upper switch is received, a power supply channel between the key switch and the upper system is activated to supply power to the upper system. By adopting the method, the power-on and power-off control of the whole car in the key electric state can be realized.

Description

Vehicle on-board power supply control method, device, computer equipment and storage medium
Technical Field
The present application relates to the field of vehicle technologies, and in particular, to a vehicle on-board power supply control method, apparatus, computer device, storage medium, and computer program product.
Background
The upper mounting of a vehicle refers to other assemblies mounted on the chassis of the vehicle. Typically, the vehicle is powered by a power battery in the chassis system. For vehicles with special functions such as refrigerated vehicles and motor home, the chassis system may need to be closed in the parking process, but the loading system is also closed, so that the loading function of the vehicle is disabled.
Therefore, a reasonable power supply control mode is needed to solve the power supply problem under the combined working condition of the loading system and the chassis system.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a vehicle power supply control method, apparatus, computer device, computer readable storage medium, and computer program product that can solve the problem of combined power supply of the upper package and the chassis.
In one aspect, the present application provides a vehicle on-board power supply control method. The method comprises the following steps:
acquiring the state of at least one of a key switch and an upper switch;
when the upper switch is in an on state and a closing signal from the key switch is received, stopping power supply to the chassis system and maintaining a power supply state to the upper system;
when the key switch is in an off state and an on signal from the loading switch is received, a power supply channel between the key switch and the loading system is activated to supply power to the loading system.
On the other hand, the application also provides a vehicle on-board power supply control device. The device comprises:
the acquisition module is used for acquiring the state of at least one of the key switch and the upper switch;
the control module is used for stopping supplying power to the chassis system and maintaining the power supply state to the loading system when receiving a closing signal from the key switch under the condition that the loading switch is in an on state;
the control module is also used for activating a power supply channel between the control module and the loading system to supply power to the loading system when receiving an opening signal from the loading switch under the condition that the key switch is in an off state.
On the other hand, the application also provides a whole vehicle controller. The whole vehicle control comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the vehicle uploading power supply control method when executing the computer program.
In another aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the vehicle on-board power supply control method described above.
In another aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of the vehicle on-board power supply control method described above.
According to the vehicle uploading power supply control method, the vehicle uploading power supply control device, the computer equipment, the storage medium and the computer program product, by acquiring the state of at least one of the key switch and the uploading switch, when the uploading switch is turned on and the key switch is turned off, the power supply to the chassis system is stopped and the power supply to the uploading system is maintained, so that the uploading system is prevented from being turned off together, and the uploading function is prevented from being disabled; meanwhile, when the key switch is closed, if the upper switch is opened, a power supply channel between the upper system and the upper system is activated to supply power, the upper system and the chassis system can relatively maintain independent power supply states, and meanwhile, power supply control can be simultaneously performed, so that the combined power supply management between the chassis system and the upper system is realized.
Drawings
FIG. 1 is an application environment diagram of a vehicle on-board power control method in some embodiments;
FIG. 2 is a flow chart of a method of controlling power supply to a vehicle in some embodiments;
FIG. 3 is a schematic diagram of a vehicle system architecture in some embodiments;
FIG. 4 is a schematic illustration of a vehicle system architecture in other embodiments;
FIG. 5 is a flow chart of the uploading power control step in some embodiments;
FIG. 6 is a block diagram of a vehicle-mounted power supply control device in some embodiments;
FIG. 7 is an internal block diagram of a computer device in some embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The vehicle uploading power supply control method provided by the embodiment of the application can be applied to an application environment shown in fig. 1. Wherein the vehicle 102 is provided with various systems, such as a power system, a steering system, etc. Each system performs its respective function by means of a respective corresponding control unit (Electronic Control Unit, ECU). To facilitate the cooperative cooperation of the systems, a vehicle controller (Vehicle Control Unit, VCU) is typically provided on the vehicle 102 to manage the operation of the systems.
In some embodiments, the transmission, travel, steering, braking, etc. structures provided on the vehicle 102 may be collectively referred to as a chassis system for supporting the vehicle engine and its various components, assemblies, etc. to ensure proper travel of the vehicle.
In some embodiments, the vehicle 102 also includes a loading system for providing dedicated functions to accomplish specific cargo or personnel transportation, or to accomplish specific work tasks, etc. For example, caravans are provided for the rest of passengers, refrigerated vehicles are provided for providing a refrigerated fresh-keeping function for food, and so on.
The vehicle 102 is further provided with a vehicle-mounted terminal 104, also called a vehicle-mounted T-BOX (remote communication terminal), which is used as front-end equipment for vehicle monitoring and management, and communicates with each controller through a CAN (Controller Area Network ) bus to acquire vehicle information such as real-time fuel consumption, engine temperature, engine speed, vehicle driving mileage, current vehicle speed, air intake pressure, throttle opening, air flow, and GPS (Global Positioning System ) position in real time, and receive and execute instructions sent by the vehicle controller.
The vehicle terminal 104 has a certain storage capability, and can locally store the running data of the vehicle in the last period of time, such as the electric quantity data.
The in-vehicle terminal 104 also has a networking function and can connect to the server 106 for communication. The in-vehicle terminal 104 and the server 106 may be directly or indirectly connected through wired or wireless communication, which is not limited herein. Illustratively, the in-vehicle terminal 104 reports the power data to the server 106 in real time.
The in-vehicle terminal 104 is also typically provided with a display device for forming a visually viewable screen for human-machine interaction with a person in the vehicle. The display device is, for example, a liquid crystal display or an electronic ink display.
The server 106 may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, security services, basic cloud computing services such as big data and an artificial intelligence platform.
The traditional loading system and the chassis system are powered by the same set of power supply system, and when the chassis system stops powering, the loading system also stops powering. If separate power supply control of the loading system and the chassis system is needed, the vehicle structure needs to be adjusted, for example, the power supply of the chassis system is controlled by a whole vehicle controller, and the power supply of the loading system is provided with a special loading controller for independent control. Alternatively, the power supply of the loading system and the chassis system is not affected by each other by providing the loading battery for the loading system and the corresponding power supply parts such as the loading high-voltage distribution box, etc. in addition to the power battery for supplying power to the chassis system. However, this approach requires modification of the vehicle structure, which is too costly to be used in commercial applications.
In view of this, the embodiment of the present application provides a vehicle on-board power supply control method, in which a key switch and an on-board switch are turned on and off, respectively, and when a turn-off signal from the key switch is received, power supply to a chassis system is stopped, and a power supply state to the on-board system is maintained; under the condition that the key switch is in a closed state, when an opening signal from the loading switch is received, a power supply channel between the key switch and the loading system is activated to supply power to the loading system, so that the loading system and the chassis system can relatively maintain independent power supply states, and simultaneously power supply control can be performed, and the joint power supply management between the chassis system and the loading system is realized.
The vehicle upper-loading power supply control method provided by the embodiment of the application does not need to change the structure of the vehicle, and can be applied to various existing vehicles, particularly vehicles with special function and purpose for upper-loading power supply, such as motor home, refrigerated transport vehicles and the like.
In some embodiments, as shown in fig. 2, there is provided a vehicle on-board power supply control method, which is executed by a vehicle controller, including the steps of:
step S202, the state of at least one of the key switch and the upper switch is obtained.
The key switch is used for controlling the activation and the closing of the chassis system, and the upper switch is used for controlling the activation and the closing of the upper system. The states of the key switch and the upper switch include an on state and an off state.
Specifically, the vehicle includes at least the following states: the key switch is turned on, and the upper switch is turned on; the key switch is turned on, and the upper switch is turned off; the key switch is closed, and the upper switch is opened; the key switch is closed, and the upper switch is closed. The vehicle controller receives an on or off signal from at least one of the key switch and the upper switch, thereby acquiring the state of the at least one of the key switch and the upper switch.
When the key switch is in an on state, the whole vehicle controller is in an activated state, and can transmit instructions to other controllers and the like so as to control various parts of the vehicle.
In some embodiments, with the key switch in an on state, the overall vehicle controller activates a power supply channel with the chassis controller to control the power battery to supply power to the chassis system through the power supply channel with the chassis controller.
In some embodiments, after the key switch is turned on, the whole vehicle controller is activated, and the whole vehicle controller controls the power battery to supply power to the chassis system through the high-voltage distribution box.
When the key switch is in an on state and the upper switch is in an off state, the chassis system is in a normal power supply state, and the upper system is in a power-off state. Illustratively, the vehicle controller controls the on-board DCDC (direct current-direct current converter) to be turned off so as not to supply power to the on-board system.
When the key switch is in an on state and the uploading switch is in an on state, the chassis system and the uploading system are in a normal power supply state. In some embodiments, when the key switch is in an on state and the vehicle controller receives an on signal from the loading switch, the vehicle controller controls the power battery to supply power to the loading system. For example, the whole vehicle controller controls the DCDC for the upper package to be turned on and controls the power battery to supply power to the upper package system through the high voltage distribution box.
When the key switch is in the off state and the uploading switch is in the off state, the chassis system and the uploading system are in the power-off state. In some embodiments, the vehicle controller controls the high voltage distribution box to power down to stop all power to the chassis system and the on-board system.
Step S204, when the upper switch is in an on state and a closing signal from the key switch is received, the power supply to the chassis system is stopped, and the power supply state to the upper system is maintained.
Because the states of the key switch and the upper switch are mutually independent, the key switch can be in an on state or an off state under the condition that the upper switch is in an on state. When the loading switch is in an on state and the vehicle controller receives the off signal from the key switch, the vehicle controller stops supplying power to the chassis system. Meanwhile, the whole vehicle controller maintains the power supply state to the loading system so as to avoid the loading function failure caused by the fact that the loading system is closed together.
Illustratively, the vehicle control unit closes a power supply path between the high voltage distribution box and the chassis controller to stop supplying power to the chassis system.
Step S206, when the key switch is in the off state and an on signal from the loading switch is received, activating a power supply channel with the loading system to supply power to the loading system.
Under the condition that the key switch is in a closed state, the whole vehicle controller is also in a power-down state. Therefore, when the upper switch transmits an opening signal to the whole vehicle controller, the whole vehicle controller is activated by the opening signal, and the whole vehicle controller re-activates a power supply channel between the whole vehicle controller and the upper system so as to supply power to the upper system.
In some embodiments, when the vehicle controller receives an on signal from the on-load switch with the key switch in an off state, other controllers other than the ECU (Engine Control Unit, engine controller) are activated, including but not limited to one or more of a motor controller, an on-load controller, an alarm controller, and the like.
In some embodiments, the whole vehicle controller closes a power supply channel of the power battery to the chassis system through the high-voltage box, opens a channel of the DCDC for the upper package to supply power to the upper package, and controls the power battery to supply power to the upper package system.
Wherein the activating a power supply channel between the upper system to supply power to the upper system comprises: controlling a relay in a high-voltage distribution box to be attracted so as to activate a power supply channel between the high-voltage distribution box and the loading system; the power supply channel also comprises a direct current converter for uploading, namely DCDC for uploading, wherein the direct current converter for uploading is used for transmitting current to the uploading system.
In the vehicle uploading power supply control method, the state of at least one of the key switch and the uploading switch is obtained, when the uploading switch is turned on and the key switch is turned off, the power supply to the chassis system is stopped, but the power supply to the uploading system is maintained, so that the uploading system is prevented from being turned off together, and the uploading function is prevented from being invalid; meanwhile, when the key switch is closed, if the upper switch is opened, a power supply channel between the upper system and the upper system is activated to supply power, the upper system and the chassis system can relatively maintain independent power supply states, and meanwhile, power supply control can be simultaneously performed, so that the combined power supply management between the chassis system and the upper system is realized.
Because the loading system and the chassis system jointly provide electric energy through the power battery, the electric quantity of the loading system and the electric quantity of the chassis system are required to be jointly managed, so that the problem that the vehicle cannot normally run due to excessive electricity consumption of the loading system or the loading function of the vehicle fails due to insufficient electric quantity of the loading system is avoided.
Therefore, in some embodiments, the vehicle on-board power supply control method provided in the embodiments of the present application further includes: receiving an electric quantity feedback signal from a battery management system under the condition that the key switch is in an on state; and determining a power supply mode for supplying power to the loading system according to the current electric quantity of the power battery represented by the electric quantity feedback signal.
Specifically, the vehicle controller receives a power feedback signal from a battery management system (Battery Management System, BMS) with the key switch in an on state. The power feedback signal is used for representing the current residual power of the power battery. And the whole vehicle controller determines a power supply mode for supplying power to the loading system according to the current electric quantity of the power battery represented by the electric quantity feedback signal.
According to the electric quantity requirements of the vehicle in different driving states, a plurality of thresholds can be set to determine a power supply mode for supplying power to the loading system under the constraint of the thresholds. For example, 30% -40% of the current electric quantity can basically meet the driving state of the vehicle, and 60% -80% of the current electric quantity can meet the special functions of the vehicle in a parking state, such as resident accommodation of a motor home, fresh food keeping of a refrigerated vehicle and the like. And according to the current electric quantity of the power battery, the whole vehicle controller determines a power supply mode for supplying power to the loading system. For example, according to the current electric quantity of the power battery, the whole vehicle controller determines the power supply time for supplying power to the loading system, and the like.
In the above embodiment, the current electric quantity of the power battery of the vehicle is monitored, and the power supply mode for supplying power to the loading system is determined according to the current electric quantity of the power battery, so that the basic requirement of normal running of the vehicle is met under the condition that the loading system and the chassis system are combined to supply power, and the situation that the vehicle cannot normally run due to excessive power consumption of the loading system is avoided.
In some embodiments, the determining a power supply mode for supplying power to the loading system according to the current power of the power battery represented by the power feedback signal includes: and when the electric quantity feedback signal indicates that the current electric quantity of the power battery is lower than a first threshold value, activating a motor controller to enable the motor controller to control a generator to charge the power battery and supply power to the loading system.
Specifically, the vehicle controller receives an electric quantity feedback signal sent by the battery management system and judges whether the current electric quantity of the power battery represented by the electric quantity feedback signal is lower than a first threshold value. The first threshold is a lower power threshold, such as 30% of rated power, etc. When the current electric quantity of the power battery is lower than a first threshold value, the electric quantity of the battery is lower, the whole vehicle controller activates the motor controller so that the motor controller controls the generator to charge the power battery, and the whole vehicle controller controls the generator to supply power to the loading system.
In some embodiments, the determining a power supply mode for supplying power to the loading system according to the current power of the power battery represented by the power feedback signal includes: when the electric quantity feedback signal indicates that the current electric quantity of the power battery is lower than a second threshold value, an alarm controller is activated, so that the alarm controller starts an alarm device to prompt a driver to start the key switch, and when the start signal from the key switch is received, the power battery is controlled to supply power to the loading system.
Specifically, the vehicle controller receives an electric quantity feedback signal sent by the battery management system and judges whether the current electric quantity of the power battery represented by the electric quantity feedback signal is lower than a second threshold value. The second threshold is lower than the first threshold, e.g., 20% of rated power, etc. When the current electric quantity of the power battery is lower than a second threshold value, the shortage of the electric quantity of the battery is indicated, and the shortage is possible to be about to exist, the whole vehicle controller activates the alarm controller so that the alarm controller starts the alarm device, and the driver is prompted to start the key switch through the alarm device to conduct battery compensation. And when the whole vehicle controller receives an opening signal from the key switch, controlling the power battery to supply power to the loading system.
In some embodiments, the determining a power supply mode for supplying power to the loading system according to the current power of the power battery represented by the power feedback signal includes: and when the electric quantity feedback signal represents that the current electric quantity of the power battery is lower than a third threshold value, disconnecting a power supply channel between the power supply device and the loading system to stop supplying power to the loading system.
Specifically, the vehicle controller receives an electric quantity feedback signal sent by the battery management system and judges whether the current electric quantity of the power battery represented by the electric quantity feedback signal is lower than a third threshold value. The third threshold is lower than the second threshold, e.g., 10% of rated power, etc. When the current electric quantity of the power battery is lower than a third threshold value, the fact that the electric quantity of the battery is seriously insufficient possibly influences the normal operation of the vehicle is indicated, and the whole vehicle controller cuts off a power supply channel between the whole vehicle controller and the loading system so as to stop supplying power to the loading system. For example, the vehicle controller disconnects the power supply path between the high voltage distribution box and the on-board DCDC to stop supplying power to the on-board system.
In the above embodiment, the current electric quantity of the power battery of the vehicle is monitored, and the power supply mode for supplying power to the loading system is determined according to the current electric quantity of the power battery, so that the basic requirement of normal running of the vehicle is met under the condition that the loading system and the chassis system are combined to supply power, and the situation that the vehicle cannot normally run due to excessive power consumption of the loading system is avoided. In addition, as the loading system and the chassis system are powered by the power battery, a new battery is not required to be added under the mode of combined electric quantity management, and the change of the vehicle structure is avoided.
It is easy to understand that the above threshold is only an example, and can be appropriately adjusted according to the actual situation in a specific application scenario; it will be clear to a person skilled in the art that reasonable variations and suitable adaptations of the above-mentioned threshold values are within the scope of protection of the present application.
In some embodiments, the vehicle on-board power supply control method provided in the embodiments of the present application is applied to the vehicle structure shown in fig. 3 and 4. Fig. 3 shows a connection structure of each controller of the vehicle, and fig. 4 shows a connection structure of a device controlled by each controller of the vehicle. The vehicle comprises a vehicle controller, a key switch, a top-loading power switch, a high-voltage distribution box, a top-loading alarm device, a power battery, a DCDC (direct current) for power battery BMS (battery management system), an engine, a generator and the like, and data transmission is carried out between the devices through a CAN (controller area network) communication network.
When the key switch is turned on, the whole vehicle controller is activated, and the whole vehicle controller controls the power battery to supply power to the chassis system through the high-voltage distribution box. If the upper mounting power switch is closed, the whole vehicle controller controls the upper mounting DCDC to be closed; and if the upper mounting power switch is turned on, controlling the DCDC for upper mounting to be turned on, and controlling the power battery to supply power to the upper mounting system through the high-voltage distribution box by the whole vehicle controller. And if the DCDC for the upper mounting is opened, the battery management system feeds back that the battery power is lower than a first threshold (30%), and the whole vehicle controller controls the generator to charge the power battery by using the engine and simultaneously supplies power to the DCDC for the upper mounting.
If the key switch is closed and the upper mounting power switch is closed, the whole vehicle controller controls the high-voltage box to be powered down, and power supply of the chassis system and the upper mounting system is stopped.
If the key switch is closed and the upper power switch is opened, the whole vehicle controller is activated, the whole vehicle controller closes a power supply channel of the power battery to the chassis system through the high-voltage distribution box, and opens a power supply channel of the upper power system for DCDC. If the battery management system feeds back that the battery power is lower than a second threshold value, the engine is not started to perform power compensation, the whole vehicle controller activates the alarm controller, alarm information is sent to the alarm device through the CAN bus, and the alarm device gives an alarm to remind a driver to open a key switch to perform battery compensation. And if the battery management system feeds back that the battery power is lower than a third threshold value, stopping the power supply channel of the loading system by the DCDC for loading by the whole vehicle controller.
In an actual application scene, when a whole car key switch is turned on, whether to supply power to the upper package or not can be judged through the upper package power utilization switch, and when the electric quantity is low, an engine can be automatically started to supplement the electric quantity; when the whole car key switch is closed and the upper power switch is opened, the power supply of the whole car chassis part is cut off, and the upper power switch is opened, so that the power failure of the whole car walking part can be realized, the upper power consumption can be ensured, and the electric appliances of the whole car under the working condition are reduced; under the working condition, if the electric quantity is lower than a set value, a driver is reminded to open a key for charging through an alarm buzzer, and if the electric quantity is particularly low, the power consumption of the upper assembly is directly cut off so as to protect a power battery.
As shown in fig. 5, in a specific application scenario, the whole vehicle controller determines the states of the key switch (T15) and the loading switch. And when the whole vehicle controller judges that the key switch is effective, namely, the key switch is in an on state, the whole vehicle controller controls the power battery to supply power to the chassis system. The whole vehicle controller further judges the state of the upper switch, and when the whole vehicle controller judges that the key switch is effective and the upper switch is effective (namely in an on state), the whole vehicle controller controls the upper system to supply power. And, the whole vehicle controller monitors the current electric quantity of the power battery. And when the current electric quantity of the power battery is too low, the whole vehicle controller performs idle speed charging.
And under the condition that the whole vehicle controller judges that the key switch is invalid, namely the key switch is in a closed state, the whole vehicle controller further judges the state of the upper switch. And under the condition that the whole vehicle controller judges that the loading switch is effective, the whole vehicle controller controls the power supply of the loading system. Otherwise, the whole vehicle controller ends the control flow. And the whole vehicle controller monitors the current electric quantity of the power battery, and when the current electric quantity of the power battery is too low, the whole vehicle controller activates the alarm controller so as to enable the alarm device to alarm.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a vehicle on-board power supply control device for realizing the vehicle on-board power supply control method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the vehicle on-board power supply control device or devices provided below may be referred to the limitation of the vehicle on-board power supply control method hereinabove, and will not be repeated here.
In some embodiments, as shown in fig. 6, there is provided a vehicle-mounted power supply control apparatus 600 including: an acquisition module 601 and a control module 602, wherein:
the acquiring module 601 is configured to acquire a state of at least one of the key switch and the top-up switch.
And the control module 602 is configured to stop power supply to the chassis system and maintain a power supply state to the loading system when receiving a turn-off signal from the key switch in a case where the loading switch is in an on state.
The control module 602 is further configured to activate a power supply channel with the loading system to supply power to the loading system when receiving an on signal from the loading switch in a case where the key switch is in an off state.
In some embodiments, the control module is further configured to control the power battery to supply power to the upper assembly system when an on signal from the upper assembly switch is received while the key switch is in an on state.
In some embodiments, the control module is further configured to receive a power feedback signal from the battery management system when the key switch is in an on state; and determining a power supply mode for supplying power to the loading system according to the current electric quantity of the power battery represented by the electric quantity feedback signal.
In some embodiments, the control module is further configured to activate a motor controller to cause the motor controller to control a generator to charge the power battery and to supply power to the loading system when the power feedback signal indicates that the current power of the power battery does not exceed a first threshold.
In some embodiments, the control module is further configured to activate an alarm controller when the power feedback signal indicates that the current power of the power battery exceeds a first threshold and does not exceed a second threshold, so that the alarm controller starts an alarm device to prompt a driver to turn on the key switch, and when receiving an on signal from the key switch, control the power battery to supply power to the loading system.
In some embodiments, the control module is further configured to disconnect the power supply channel from the on-board system to stop supplying power to the on-board system when the power feedback signal indicates that the current power of the power battery exceeds a third threshold.
In some embodiments, the control module is further configured to control a relay in the high voltage distribution box to engage to activate a power supply channel between the high voltage distribution box and the on-board system; the power supply channel also comprises a direct current converter for upper mounting, and the direct current converter for upper mounting is used for transmitting current to the upper mounting system.
In some embodiments, the control module is further configured to activate a power supply channel with the chassis controller when the key switch is in an on state to control the power battery to supply power to the chassis system through the power supply channel with the chassis controller.
The above-described respective modules in the vehicle-mounted power supply control apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In some embodiments, as shown in fig. 7, a vehicle controller is provided that includes a processor, a memory, an Input/Output interface (I/O) and a communication interface. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface is connected to the system bus through the input/output interface. The system bus is, for example, a CAN bus. The processor of the whole vehicle controller is used for providing calculation and control capabilities. The memory of the whole vehicle controller at least comprises a nonvolatile storage medium and an internal memory. The nonvolatile storage medium stores an operating system, a computer program, and the like. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a vehicle on-board power supply control method.
It will be appreciated by those skilled in the art that the structure shown in fig. 7 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In some embodiments, a vehicle controller is further provided, including a memory and a processor, where the memory stores a computer program, and the processor executes the computer program to implement the steps in the method embodiments described above.
In some embodiments, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
In some embodiments, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.

Claims (10)

1. A vehicle-mounted power supply control method, characterized by comprising:
acquiring the state of at least one of a key switch and an upper switch;
when the upper switch is in an on state and a closing signal from the key switch is received, stopping power supply to the chassis system and maintaining a power supply state to the upper system;
when the key switch is in an off state and an on signal from the loading switch is received, a power supply channel between the key switch and the loading system is activated to supply power to the loading system.
2. The method according to claim 1, wherein the method further comprises:
when the key switch is in an on state and an on signal from the upper switch is received, the power battery is controlled to supply power to the upper system.
3. The method according to claim 1, wherein the method further comprises:
receiving an electric quantity feedback signal from a battery management system under the condition that the key switch is in an on state;
and determining a power supply mode for supplying power to the loading system according to the current electric quantity of the power battery represented by the electric quantity feedback signal.
4. A method according to claim 3, wherein the determining a power supply mode for supplying power to the loading system according to the current power of the power battery characterized by the power feedback signal comprises:
when the electric quantity feedback signal indicates that the current electric quantity of the power battery is lower than a first threshold value, activating a motor controller to enable the motor controller to control a generator to charge the power battery and supply power to the loading system;
when the electric quantity feedback signal indicates that the current electric quantity of the power battery is lower than a second threshold value, activating an alarm controller to enable the alarm controller to start an alarm device to prompt a driver to start the key switch, and controlling the power battery to supply power to the loading system when receiving a start signal from the key switch;
when the electric quantity feedback signal indicates that the current electric quantity of the power battery is lower than a third threshold value, a power supply channel between the power supply device and the loading system is disconnected to stop supplying power to the loading system; wherein the first threshold is greater than the second threshold, and the second threshold is greater than the third threshold.
5. The method of claim 1, wherein the activating a power supply channel between the mounting system to supply power to the mounting system comprises:
controlling a relay in a high-voltage distribution box to be attracted so as to activate a power supply channel between the high-voltage distribution box and the loading system; the power supply channel also comprises a direct current converter for upper mounting, and the direct current converter for upper mounting is used for transmitting current to the upper mounting system.
6. The method according to any one of claims 1 to 5, further comprising:
and under the condition that the key switch is in an on state, activating a power supply channel between the key switch and the chassis controller so as to control the power battery to supply power to the chassis system through the power supply channel between the key switch and the chassis controller.
7. A vehicle-mounted power supply control apparatus, characterized by comprising:
the acquisition module is used for acquiring the state of at least one of the key switch and the upper switch;
the control module is used for stopping supplying power to the chassis system and maintaining the power supply state to the loading system when receiving a closing signal from the key switch under the condition that the loading switch is in an on state;
the control module is also used for activating a power supply channel between the control module and the loading system to supply power to the loading system when receiving an opening signal from the loading switch under the condition that the key switch is in an off state.
8. A vehicle control unit comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method according to any one of claims 1 to 6 when executing the computer program.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
CN202310458571.9A 2023-04-25 2023-04-25 Vehicle on-board power supply control method, device, computer equipment and storage medium Pending CN116512908A (en)

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CN202310458571.9A CN116512908A (en) 2023-04-25 2023-04-25 Vehicle on-board power supply control method, device, computer equipment and storage medium

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CN202310458571.9A CN116512908A (en) 2023-04-25 2023-04-25 Vehicle on-board power supply control method, device, computer equipment and storage medium

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CN116512908A true CN116512908A (en) 2023-08-01

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