CN116799906A - Vehicle power supply method and system and automobile - Google Patents

Vehicle power supply method and system and automobile Download PDF

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Publication number
CN116799906A
CN116799906A CN202310756619.4A CN202310756619A CN116799906A CN 116799906 A CN116799906 A CN 116799906A CN 202310756619 A CN202310756619 A CN 202310756619A CN 116799906 A CN116799906 A CN 116799906A
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CN
China
Prior art keywords
vehicle
power supply
power
state
discharge
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
CN202310756619.4A
Other languages
Chinese (zh)
Inventor
刘亮
汪俊
彭华帅
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.)
Zhejiang Geely Holding Group Co Ltd
Radar New Energy Vehicle Zhejiang Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Radar New Energy Vehicle Zhejiang 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 Zhejiang Geely Holding Group Co Ltd, Radar New Energy Vehicle Zhejiang Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN202310756619.4A priority Critical patent/CN116799906A/en
Publication of CN116799906A publication Critical patent/CN116799906A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters

Abstract

The invention discloses a vehicle power supply method, a system and an automobile, wherein when a start-up discharging instruction is received, a power battery is controlled to output a power supply signal with a current value larger than a preset current value through a direct-current discharging port; and performing inversion conversion on the power supply signal, and supplying power to an industrial load by using the inverted power supply signal. According to the invention, the power battery is controlled to output the power supply signal with the current value larger than the preset current value through the direct current discharge port, then the power supply signal is subjected to inversion conversion, and the inverted power supply signal is used for supplying power to the industrial load, so that the power supply for the industrial load by directly using the pure electric automobile is realized.

Description

Vehicle power supply method and system and automobile
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle power supply method and system and an automobile.
Background
Along with continuous breakthrough and innovation of new energy automobile technology and catering to the demands of consumers, more and more advanced technologies are designed from practicality, so that the travel demands of consumers are improved to a certain extent, and meanwhile, the production demands of the consumers are also improved.
The power battery in the new energy automobile can output low-power voltage to supply power for the load inside or outside the automobile, so that the use requirement of partial load is met. But for industrial grade loads, the load requires a high power voltage to power, such as high power equipment for drones, industrial drills, etc. In this case, the power battery in the new energy automobile cannot supply the industrial load with the required energy.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a vehicle power supply method, a vehicle power supply system and an automobile, and aims to solve the technical problem that a power battery in the prior art cannot provide required energy for industrial loads.
In order to achieve the above object, the present invention provides a vehicle power supply method including:
when a start discharging instruction is received, controlling the power battery to output a power supply signal with a current value larger than a preset current value through the direct current discharging port;
and performing inversion conversion on the power supply signal, and supplying power to an industrial load by using the inverted power supply signal.
Optionally, when receiving the start-up and discharge instruction, the control power battery outputs a power supply signal with a current value greater than a preset current value through the direct current discharge port, including:
detecting the current vehicle state when receiving a start discharge instruction;
when the current vehicle state is in a dischargeable state, the power battery is controlled to output a power supply signal with a current value larger than a preset current value through a direct-current discharge port.
Optionally, the detecting the current vehicle state when receiving the start discharge instruction includes:
detecting current gear information of a vehicle, current connection information of a direct current discharge gun, current state information of a power supply controller and initial state information of a voltage converter when a start discharge instruction is received;
and when the current gear information, the current connection information, the current state information and the initial state information all meet the preset whole vehicle discharging condition, determining that the current vehicle state is in a dischargeable state.
Optionally, when the current vehicle state is in a dischargeable state, controlling the power battery to output a power supply signal with a current value greater than a preset current value through a dc discharge port includes:
detecting battery state information of the power battery and working state information of a voltage converter when the current vehicle state is in a dischargeable state;
and when the battery state information and the discharging state information both meet the preset battery discharging condition, controlling the power battery to output a power supply signal with a current value larger than a preset current value through a direct current discharging port.
Optionally, the inverter converting the power supply signal, and using the inverted power supply signal to supply power to an industrial load, and then further includes:
detecting a discharge parameter of the power battery;
determining real-time discharge power and residual discharge duration according to the discharge parameters;
and displaying the discharge parameters, the real-time discharge power and the residual discharge duration.
Optionally, the power supply signal is subjected to inversion conversion, and the inverted power supply signal is used for supplying power to the industrial load, and then the method further comprises the following steps:
detecting whether a vehicle is in a vehicle locking discharging mode or not when the vehicle is powered down;
and when the vehicle is in a vehicle locking discharging mode, maintaining to output the inverted power supply signal to supply power to an industrial load, and otherwise stopping outputting the inverted power supply signal.
Optionally, when receiving the start-up discharge instruction, controlling the power battery to output a power supply signal with a current value larger than a preset current value through the direct current discharge port, and further including;
detecting power-on state information of a vehicle;
when the power-on state information is in a high-voltage power-on state or a running state, detecting whether a man-machine interaction unit or a remote information processor of the vehicle outputs a start discharge instruction or not;
and detecting whether the remote information processor outputs a start discharging instruction when the power-on state information is in the dormant power-off state.
In addition, to achieve the above object, the present invention also provides a vehicle power supply system including: the system comprises a power supply controller, a voltage converter, a vehicle controller, a man-machine interaction unit and a remote information processor;
the power supply controller is connected with the power battery, a direct current discharge port of the power battery is connected with the voltage converter through a direct current discharge gun, the voltage converter is further connected with an industrial load, and the vehicle controller is in signal transmission with the man-machine interaction unit and the remote information processor through a CAN communication mode.
In addition, to achieve the above object, the present invention also provides an automobile comprising: the vehicle power supply system is characterized in that the vehicle power supply system comprises a power supply system.
The invention provides a vehicle power supply method, a system and an automobile, wherein when a start-up discharging instruction is received, a power battery is controlled to output a power supply signal with a current value larger than a preset current value through a direct-current discharging port; and performing inversion conversion on the power supply signal, and supplying power to an industrial load by using the inverted power supply signal. According to the invention, the power battery is controlled to output the power supply signal with the current value larger than the preset current value through the direct current discharge port, then the power supply signal is subjected to inversion conversion, and the inverted power supply signal is used for supplying power to the industrial load, so that the power supply for the industrial load by directly using the pure electric automobile is realized.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of a vehicle power supply method according to the present invention;
FIG. 2 is a flow chart of a second embodiment of a vehicle power supply method according to the present invention;
FIG. 3 is a flow chart of a third embodiment of a method for powering a vehicle according to the present invention;
FIG. 4 is a flow chart of a fourth embodiment of a method for powering a vehicle according to the present invention;
FIG. 5 is a software architecture diagram of a vehicle power supply system of the present invention;
fig. 6 is a schematic view of the structure of the power supply of the vehicle of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a flowchart of a first embodiment of a vehicle power supply method according to the present invention. A first embodiment of the vehicle power supply method of the invention is presented based on fig. 1.
In this embodiment, the vehicle power supply method includes the steps of:
step S10: when a start discharging instruction is received, the power battery is controlled to output a power supply signal with a current value larger than a preset current value through the direct current discharging port.
It is understood that the execution subject in the present embodiment may be a vehicle power supply system including a power supply controller, a voltage converter, a vehicle controller, a man-machine interaction unit, a telematics unit, and the like. In this embodiment and the following embodiments, the entire vehicle power supply system is described as an execution subject.
It should be understood that when the electric vehicle is not running, the power battery 10 in the vehicle may output voltage to supply power to the loads inside and outside the vehicle. The pure electric vehicle can be a passenger vehicle, a commercial vehicle and the like. Such as an electric pick-up truck, which can load the load during use and also provide the load with the required energy when the load is in use. Typically, the power battery may output a low-power supply signal through an ac port, i.e., a slow charge port, to supply power to a common low-power load, where the power of the power supply signal is typically less than two kw. However, pure electric vehicles cannot currently provide the required energy for industrial loads. The power supply signal required by the industrial load is typically tens of kilowatts or tens of kilowatts. The industrial load may be an industrial electric drill, an unmanned aerial vehicle, or the like. The power battery in the prior art only meets the use of low-power load through the output energy of the alternating current port, and cannot meet the use scene of high-power load.
The start-up discharge command is a command for controlling the power battery to discharge. When the current whole vehicle state and the state of the power battery of the vehicle power supply system meet the discharge requirement, the power battery can be directly controlled to discharge according to the start discharge instruction. The direct current discharge port can be a fast charge port of the power battery, and a high-power supply signal can be directly output through the fast charge port.
In specific implementation, the vehicle power supply system can detect whether a start-up discharge instruction input exists in real time, and when the start-up discharge instruction input is detected, the power battery is controlled to output a power supply signal with a current value reaching a preset current value through the direct-current discharge port.
Step S20: and performing inversion conversion on the power supply signal, and supplying power to an industrial load by using the inverted power supply signal.
It should be noted that, the industrial load usually needs an ac voltage to supply power, but the voltage stored in the power battery is a dc voltage and cannot directly supply power to the industrial load, and at this time, the dc voltage needs to be converted into a corresponding ac voltage, and then the ac voltage is used to supply power to the industrial load. In addition, considering that the voltage value of the output voltage of the power battery may not match the voltage value required by the industrial load, for example, the voltage required by the industrial electric drill is 220V, and the voltage output by the power battery may be 380V, the voltage value of the output power supply signal of the power battery may be adjusted to meet the electricity demand of the industrial load when the voltage of the power supply signal needs to be adjusted.
In the implementation process, the voltage converter or the related inversion structure arranged in the vehicle power supply system can be used for performing inversion processing on the power supply signal, so that an alternating current power supply signal is obtained, and then the alternating current power supply signal is used for supplying power to the industrial load.
In addition, in the embodiment, the power supply signal output by the power battery through the voltage converter is an alternating current signal, and the power supply signal can be used for charging the power batteries of other vehicles, so that the charging and discharging requirements of V2V are met.
The invention provides a vehicle power supply method, which comprises the steps of controlling a power battery to output a power supply signal with a current value larger than a preset current value through a direct-current discharge port when a start-up discharge instruction is received; and performing inversion conversion on the power supply signal, and supplying power to an industrial load by using the inverted power supply signal. According to the invention, the power battery is controlled to output the power supply signal with the current value larger than the preset current value through the direct current discharge port, then the power supply signal is subjected to inversion conversion, and the inverted power supply signal is used for supplying power to the industrial load, so that the power supply for the industrial load by directly using the pure electric automobile is realized.
Further, in this embodiment, the vehicle power supply system may further control the power battery to output a power supply signal with a smaller current value through the ac port (low voltage port) according to the load type, and output the power supply signal to the corresponding low voltage load by using the ac discharge gun or the discharge panel of the vehicle, so as to supply power to the low voltage load. The vehicle power supply system is compatible with low-power supply and high-power supply, and outputs power supply signals with different powers through different ports.
Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of a vehicle power supply method according to the present invention. Based on the first embodiment of the vehicle power supply method described above, a second embodiment of the vehicle power supply method of the invention is proposed.
In this embodiment, the step S10 includes:
step S101: and detecting the current vehicle state when receiving the start discharge instruction.
It should be understood that the current vehicle state refers to the state in which the vehicle is at the current moment. The current vehicle state may be divided into a dischargeable state and a non-dischargeable state. The non-dischargeable state may be at least one of a state in which the vehicle is running, a state in which the discharge gun is not connected, a voltage converter abnormality, and the like.
In a specific detection process, step S101 may include:
step S1011: when a start discharge instruction is received, current gear information of the vehicle, current connection information of the direct current discharge gun, current state information of the power supply controller and initial state information of the voltage converter are detected.
It should be understood that the direct current discharge gun is a discharge gun for outputting a direct current power supply signal. One end of the direct current discharging gun is connected with the power battery, the other end of the direct current discharging gun is connected with the input end of the voltage converter, and a direct current power supply signal output by the power battery can be output to the voltage converter through the direct current discharging gun. When the direct current discharge gun is in the inserted state, the direct current discharge gun can be considered to be connected with the power battery and the voltage converter. The current gear signal refers to gear information of the vehicle at the current moment, and the gear information can be a parking gear, a forward gear, a reverse gear or the like of the current vehicle. When the vehicle is in a parking gear, the position of the vehicle is fixed and cannot move; when the vehicle is in a forward gear or a reverse gear, the position of the vehicle is not fixed, and the power battery is used for supplying power to industrial loads at the moment, so that power supply abnormality is easy to occur. The power supply controller is a device for controlling the operating state of the power battery. For example, the processes such as start and stop of charge and discharge of the power battery may be controlled. The power supply controller is in a dormant state or a closed state, and a power battery in the vehicle cannot be normally charged and normally outputs voltage.
It will be appreciated that the voltage converter may be located within the vehicle or may be located outside the vehicle in connection with a power cell within the vehicle. Before the power battery outputs a power supply signal, the voltage converter needs to be started, the voltage converter can be connected with a low-voltage power supply in the vehicle, and when a start-up discharging instruction is detected, the voltage converter can be powered by the low-voltage power supply. The voltage converter cannot process the power supply signal when the voltage converter is not normally started or is abnormal in operation, and therefore, it is also necessary to detect initial state information of the voltage converter before outputting the power supply signal. The initial state information refers to an operation state of the voltage converter when the power battery needs to output a power supply signal.
In addition, the voltage converter can be provided with a plurality of output ports, one port can output 380V alternating voltage, the other port can output 200V alternating voltage, and more output ports can be arranged according to the actual power requirements and the current magnitude.
Step S1012: and when the current gear information, the current connection information, the current state information and the initial state information all meet the preset whole vehicle discharging condition, determining that the current vehicle state is in a dischargeable state.
It is easy to understand that the preset vehicle discharge condition is a preset condition for determining whether the vehicle can normally discharge. The preset discharging condition comprises that the current gear information is in a parking gear, the current connection information is that the direct current discharging gun is in a connection state, and the voltage converter and the power supply controller are in normal working states. When the factors influencing the output of the power battery in the whole vehicle aspect are involved, corresponding conditions can be set to determine the state of the vehicle.
In the implementation, when the current gear information of the whole vehicle, the current connection information of the direct current discharge gun, the current state information of the power supply controller and the initial state information of the voltage converter all meet the discharge conditions, the current vehicle state can be determined to be a dischargeable state, and when any one of the conditions is not met, the current vehicle state is a non-dischargeable state.
Step S102: when the current vehicle state is in a dischargeable state, the power battery is controlled to output a power supply signal with a current value larger than a preset current value through a direct-current discharge port.
It can be understood that when the current vehicle state is in a dischargeable state, the factors of the whole vehicle do not influence the discharging process of the power battery, and at the moment, the vehicle power supply system can control the power battery to output a power supply signal.
In addition, in the discharging process of the power battery, not only the state of the vehicle but also the discharging state of the battery need to be considered. When the power battery does not meet the discharge conditions corresponding to the battery, the power supply signal output cannot be performed. Such as insufficient remaining power of the power battery, abnormal output of the power battery, abnormal operation of the voltage converter, and the like.
Therefore, the step S102 may further specifically include:
step S1021: and detecting battery state information of the power battery and working state information of a voltage converter when the current vehicle state is in a dischargeable state.
The battery state information of the power battery comprises a discharging state of the power battery and a battery state of the power battery. The discharging state is a state of whether the electric parameters such as voltage, current or power output by the battery are normal or not; the battery state refers to a state of whether the battery can normally output energy, for example, a remaining amount of the battery is insufficient. The operating state information of the voltage converter refers to information about whether the voltage converter can normally perform voltage conversion. When the voltage converter cannot normally perform voltage conversion or the power supply signal converted by the voltage converter cannot meet the power consumption requirement of the industrial load, the voltage converter can be determined to be in an abnormal working state. In this embodiment, the voltage converter may employ a PSP380 device that may output 220V or 380V ac voltage.
In specific implementation, when the current vehicle state meets the preset whole vehicle discharging condition, a vehicle controller in the vehicle power supply system can output a discharging permission instruction to the power supply controller, and when the discharging permission instruction is received by the power supply controller, the power supply controller can detect whether the power battery can normally output voltage or not and then detect the electric parameter output by the power battery, so that the battery state information of the power battery is detected; and detecting the power supply signal output by the voltage converter, thereby determining the working state of the voltage converter.
Step S1022: and when the battery state information and the discharging state information both meet the preset battery discharging condition, controlling the power battery to output a power supply signal with a current value larger than a preset current value through a direct current discharging port.
It is understood that the preset battery discharging condition is a condition that is preset to determine whether the power battery can normally output the power supply signal required for the industrial load. In this embodiment, the preset battery discharging conditions include, but are not limited to, battery state information of the power battery and operating state information of the voltage converter.
In a specific implementation, whether the power battery can meet the preset battery discharging condition of the power battery or not can be determined according to the detected battery state information and the detected working state information of the voltage converter, and when the battery state information and the working state information of the voltage converter meet the preset battery discharging condition of the power battery, the power battery can be confirmed to be discharged, so that the power battery is controlled to output a power supply signal with a current value larger than a preset current value through the direct current discharging port.
In this embodiment, whether the power battery can be normally discharged is determined through the state information of the whole vehicle and the state information of the power battery, so that the discharge state of the power battery is controlled more accurately.
Referring to fig. 3, fig. 3 is a flowchart illustrating a third embodiment of a vehicle power supply method according to the present invention. A third embodiment of the vehicle power supply method of the invention is proposed based on the first embodiment or the second embodiment of the vehicle power supply method described above.
In this embodiment, the step S20 further includes:
step S30: and detecting the discharge parameter of the power battery.
It should be understood that the discharging parameter refers to a voltage value, a current value, and the like of the power battery outputting the power supply signal in the normal discharging process. In a specific detection process, a detection instrument can be used to be connected to the output end of the power battery, so that the discharge parameters of the power battery are collected in real time.
Step S40: and determining the real-time discharge power and the residual discharge duration according to the discharge parameters.
It can be understood that the real-time discharging power refers to the power output by the power battery in a real-time state, and whether the power supply signal output by the power battery meets the use requirement of the industrial load can be determined according to the real-time discharging power. When the real-time discharge power is lower or higher, the discharge power of the battery can be adjusted to meet the electricity consumption requirement of the industrial load. The residual discharge time is the time for maintaining the current discharge state, and the power battery can normally supply energy for the industrial load. The discharging residual time can be determined according to the initial electric quantity, the discharging power, the discharging time and other parameters of the power battery, and can also be determined according to the residual electric quantity and the current discharging power of the power battery.
In specific implementation, the real-time discharge power of the power battery can be directly calculated according to the discharge parameters, then the current battery residual quantity is detected, and the residual discharge duration of the power battery is determined according to the current battery residual quantity and the real-time discharge power.
Step S50: and displaying the discharge parameters, the real-time discharge power and the residual discharge duration.
It is understood that in the case that the discharge parameter of the power battery is detected and the real-time discharge power and the remaining discharge time period are determined, the parameters of the discharge parameter, the remaining discharge time period, the real-time discharge power, and the like may be displayed. Of course, during display, the information such as the remaining capacity of the power battery, the set discharge cut-off remaining capacity, fault abnormality prompt, and endurance mileage can be displayed.
In the display process, the information may be sent to a display screen controlled in the vehicle for display, or may be sent to a terminal connected to a vehicle network for display, which is not limited herein.
In addition, in the present embodiment, after the step S20 or the step S50, the method further includes:
step S60: and when the vehicle is powered down, detecting whether the vehicle is in a locking discharging mode.
It should be understood that a vehicle powered down refers to the vehicle being in a stopped state, such as a vehicle flameout. When the normal vehicle is powered down, the corresponding power battery can stop outputting the power supply signal. In this embodiment, the power battery may be further controlled to output a power supply signal to supply power to the industrial load by setting the vehicle locking discharging mode when the vehicle is powered down.
The vehicle locking discharging mode refers to a working mode that the power battery approves to continue outputting a power supply signal after the vehicle is powered down. Under the condition that a vehicle locking discharging mode is set, the power battery output is not influenced when the vehicle is powered down; and under the condition that the vehicle locking discharging mode is not set, the power battery stops outputting the power supply signal when the vehicle is powered down.
In a specific implementation, the working mode setting during the power-down of the vehicle can be performed through a man-machine interaction unit in the vehicle, for example, a driver can directly perform setting on the central control through a key or touch mode. Under the condition that the vehicle is powered down normally, the vehicle power supply system can detect whether the vehicle is in a vehicle locking discharging mode.
Step S70: and when the vehicle is in a vehicle locking discharging mode, maintaining to output the inverted power supply signal to supply power to an industrial load, and otherwise stopping outputting the inverted power supply signal.
It should be understood that when the vehicle is in the locked discharging mode, the output of the power battery is not affected, and at this time, the vehicle power supply system continues to output the inverted power supply signal to supply power to the industrial load; and when the vehicle is not in the vehicle locking discharging mode, the power battery stops outputting the power supply signal. For example, when a vehicle-locking discharging mode has been set in the vehicle, even if the vehicle is powered down, a vehicle controller in the vehicle power supply system can continuously output a discharge permission instruction to the power supply controller; when the vehicle is not provided with the vehicle locking discharging mode, the vehicle controller stops outputting the discharging permission instruction to the power supply controller when the vehicle is powered down, and the power supply controller controls the power battery to stop outputting.
Referring to fig. 4, fig. 4 is a flowchart illustrating a fourth embodiment of a vehicle power supply method according to the present invention. A fourth embodiment of the vehicle power supply method of the invention is presented based on any one of the first to third embodiments of the vehicle power supply method described above.
In this embodiment, before the step S10, the method further includes:
step S101: and detecting power-on state information of the vehicle.
It should be understood that the start-up discharge instruction is externally input by the driver, and thus the vehicle power supply system needs to detect the start-up discharge instruction. The input mode of the start discharge instruction specifically comprises the input of a man-machine interaction unit in the vehicle and the input of external terminal equipment connected through a remote information processor. The input mode of the start discharge command is also different when the vehicle is in different states. When the vehicle is in a non-awakened state, the man-machine interaction unit in the vehicle does not start to work, so that the man-machine interaction unit cannot input a start discharging instruction, and at the moment, whether the terminal equipment connected with the remote information processor inputs the start discharging instruction is detected. When the vehicle is in a high-voltage power-on state or a running state, the man-machine interaction unit is in a working state, and at the moment, the terminal equipment connected with the remote information processor and the man-machine interaction unit are required to be detected simultaneously.
It should be noted that, the power-on state information of the vehicle mainly includes: an OFF gear which indicates that the whole vehicle is in a state of not waking up, namely a dormant power-down state; the ON gear represents a high-voltage power-ON gear, and the ON gear is a high-voltage power-ON condition, and the whole vehicle is probably not in a high-voltage state at the moment; and a Ready gear represents that the whole vehicle is in a running state. The high-voltage power-on state is a power-on state in a normal starting state of the vehicle. The vehicle can enter a running state at any time. The dormant power-down state is a state in which the controller in the vehicle does not normally supply power and the vehicle cannot be used normally.
In the specific detection, the power-on gear of the vehicle can be detected so as to detect the power-on state information of the vehicle. For example, when the power-on gear of the vehicle is the OFF gear, the vehicle can be considered to be in a dormant power-down state; when the power-ON gear of the vehicle is in the ON gear, the vehicle can be identified to be in a high-voltage power-ON state under the fault condition that the upper high voltage is not influenced; when the power-on gear of the vehicle is in the Ready gear, the vehicle can be considered to be in a running state.
Step S102: and when the power-on state information is in a high-voltage power-on state or a driving state, detecting whether a man-machine interaction unit or a remote information processor of the vehicle outputs a start discharge instruction.
Step S103: and detecting whether the remote information processor outputs a start discharging instruction when the power-on state information is in the dormant power-off state.
It will be appreciated that upon determining the power-on status information of the vehicle, the vehicle power supply system may detect the telematics unit alone or in combination with the telematics unit based on the power-on status information to determine whether a start-up discharge command input is present.
In the implementation, when a vehicle is in a dormant power-down state, a driver can remotely input a start-up discharge instruction through an APP on a terminal device, a vehicle controller in a vehicle discharge system can detect the current state of the whole vehicle when detecting the start-up discharge instruction, and when the current state meets the preset discharge regulation of the whole vehicle, the driver outputs a discharge permission instruction to a power supply controller; the power supply controller can detect the states of the power battery and the voltage converter when receiving the discharge permission instruction, and control the power battery to output a power supply signal and feed back discharge information to display when the battery state information of the power battery and the working state information of the voltage converter meet preset battery discharge conditions.
When the vehicle is in a high-voltage power-on state, a driver can remotely input a start-up discharge instruction through an APP on the terminal equipment or directly input the start-up discharge instruction through the man-machine interaction unit, a vehicle controller in a vehicle discharge system can detect the current state of the whole vehicle when detecting the start-up discharge instruction, and output a discharge permission instruction to a power supply controller when the current state meets the preset discharge regulation of the whole vehicle; the power supply controller can detect the states of the power battery and the voltage converter when receiving the discharge permission instruction, and control the power battery to output a power supply signal and feed back discharge information to display when the battery state information of the power battery and the working state information of the voltage converter meet preset battery discharge conditions.
Considering that the vehicle is in a drivable state, the vehicle can move in the discharging process of the power battery, and certain potential safety hazards exist. For example, when a driver in a vehicle touches a gear by mistake during the discharging process of a power battery, the vehicle can move, and safety problems are easy to occur. Therefore, when the vehicle is in a drivable state, a driver can also input a start-up discharge instruction remotely through the APP on the terminal equipment or directly input the start-up discharge instruction through the man-machine interaction unit, at the moment, the vehicle discharge system can detect the discharge state of the discharge gun, when a gun inserting signal is detected, the power-on state of the vehicle is converted into a high-voltage power-on state from the drivable state, then a detection step related to the power battery discharge is executed, and at the moment, the power battery is in the high-voltage power-on state in the discharging process of the power battery, and potential safety hazards cannot exist.
Referring to fig. 5, fig. 5 is a software architecture diagram of the vehicle power supply system of the present invention. An embodiment of the vehicle power supply system of the invention is presented based on fig. 5.
In this embodiment, the vehicle power supply system includes: a power supply controller 10, a voltage converter 20, a vehicle controller 30, a man-machine interaction unit 40, and a telematics unit 50;
the power supply controller 10 is respectively connected with the power battery and the vehicle controller 30, a direct current discharge port of the power battery is connected with the voltage converter 20 through a direct current discharge gun, the voltage converter 20 is also connected with an industrial load, and the vehicle controller 30 is respectively connected with the man-machine interaction unit 50 and the remote information processor 60 through a gateway.
It is readily understood that a power battery is typically a battery that provides electrical energy to the vehicle's motor. In a specific implementation, the power supply controller 10 may detect whether a discharge permission command is received, and when the discharge permission command is received, control the power battery to output a power supply signal to the voltage converter 20 through the dc discharge port; the voltage converter 20 may perform inversion conversion on the power supply signal, and output the power supply signal obtained after the conversion to the first load.
Wherein the allowable discharge instruction indicates that the vehicle satisfies a discharge condition, the power supply controller 10 may control the power battery to discharge. The power supply signal is a signal output by the power battery through the direct current discharge port and the direct current discharge gun. The power supply signal can meet the power consumption requirement of industrial loads.
In specific implementation, a driver can select different modes to input a start discharge instruction according to the power-on state of the vehicle, for example, start/end discharge instruction is input remotely through APP on terminal equipment or the start discharge instruction is input directly through a man-machine interaction unit, when the start discharge instruction is detected, a vehicle controller in a vehicle discharge system can detect the current state of the whole vehicle first, and when the current state meets the preset discharge regulation of the whole vehicle, an allowable discharge instruction is output to a power supply controller; the power supply controller can detect the states of the power battery and the voltage converter when receiving the discharge permission instruction, and control the power battery to output a power supply signal and feed back discharge information to display when the battery state information of the power battery and the working state information of the voltage converter meet preset battery discharge conditions.
The present embodiment provides a vehicle power supply system including: a power supply controller 10, a voltage converter 20, a vehicle controller 30, a man-machine interaction unit 40, and a telematics unit 50; the power supply controller 10 is respectively connected with the power battery and the vehicle controller 30, a direct current discharge port of the power battery is connected with the voltage converter 20 through a direct current discharge gun, the voltage converter 20 is also connected with an industrial load, and the vehicle controller 30 is respectively connected with the man-machine interaction unit 50 and the remote information processor 60. In the embodiment, the power battery is controlled to output a power supply signal with a current value larger than a preset current value through the direct current discharge port, then the power supply signal is subjected to inversion conversion, and the inverted power supply signal is used for supplying power to an industrial load, so that the pure electric vehicle is directly used for supplying power to the industrial load.
Further, in the present embodiment, the vehicle power supply system further includes: a vehicle body controller, an alternating current discharge controller, a gear detector and the like. The vehicle controller is in signal transmission with the man-machine interaction unit and the remote information processor in a CAN communication mode.
Referring to fig. 6, fig. 6 is a schematic view of the structure of the power supply of the vehicle of the present invention. Based on fig. 6, a motor vehicle is proposed, which comprises the described vehicle power supply system. The specific structure of the vehicle power supply system may refer to the embodiment of the vehicle power supply system, which is not described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. read-only memory/random-access memory, magnetic disk, optical disk), comprising several events for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. A vehicle power supply method, characterized by comprising:
when a start discharging instruction is received, controlling the power battery to output a power supply signal with a current value larger than a preset current value through the direct current discharging port;
and performing inversion conversion on the power supply signal, and supplying power to an industrial load by using the inverted power supply signal.
2. The vehicle power supply method according to claim 1, wherein the controlling the power battery to output the power supply signal having the current value larger than the preset current value through the dc discharge port when the start-up discharge instruction is received, comprises:
detecting the current vehicle state when receiving a start discharge instruction;
when the current vehicle state is in a dischargeable state, the power battery is controlled to output a power supply signal with a current value larger than a preset current value through a direct-current discharge port.
3. The vehicle power supply method according to claim 2, wherein detecting the current vehicle state upon receiving the start-up discharge instruction includes:
detecting current gear information of a vehicle, current connection information of a direct current discharge gun, current state information of a power supply controller and initial state information of a voltage converter when a start discharge instruction is received;
and when the current gear information, the current connection information, the current state information and the initial state information all meet the preset whole vehicle discharging condition, determining that the current vehicle state is in a dischargeable state.
4. The vehicle power supply method according to claim 3, wherein controlling the power battery to output a power supply signal having a current value greater than a preset current value through a dc discharge port when the current vehicle state is in a dischargeable state, comprises:
detecting battery state information of the power battery and working state information of a voltage converter when the current vehicle state is in a dischargeable state;
and when the battery state information and the discharging state information both meet the preset battery discharging condition, controlling the power battery to output a power supply signal with a current value larger than a preset current value through a direct current discharging port.
5. The vehicle power supply method according to claim 1, wherein the inverter converting the power supply signal and supplying power to an industrial load using the inverted power supply signal, further comprising:
detecting a discharge parameter of the power battery;
determining real-time discharge power and residual discharge duration according to the discharge parameters;
and displaying the discharge parameters, the real-time discharge power and the residual discharge duration.
6. The vehicle power supply method according to claim 1, wherein the power supply signal is subjected to inversion conversion, and industrial loads are supplied with power by using the inverted power supply signal, and further comprising:
detecting whether a vehicle is in a vehicle locking discharging mode or not when the vehicle is powered down;
and when the vehicle is in a vehicle locking discharging mode, maintaining to output the inverted power supply signal to supply power to an industrial load, and otherwise stopping outputting the inverted power supply signal.
7. The power supply method of claim 1, wherein when receiving the start-up discharge command, the control power battery outputs a power supply signal having a current value greater than a preset current value through the dc discharge port, and further comprising:
detecting power-on state information of a vehicle;
when the power-on state information is in a high-voltage power-on state or a running state, detecting whether a man-machine interaction unit or a remote information processor of the vehicle outputs a start discharge instruction or not;
and detecting whether the remote information processor outputs a start discharging instruction when the power-on state information is in the dormant power-off state.
8. The method for supplying power to a vehicle according to claim 7, wherein when the power-on state information is a high-voltage power-on state or a drivable state, detecting whether a human-computer interaction unit or a telematics unit of the vehicle outputs a start-up discharge instruction, further comprises:
detecting a gun inserting signal of the discharge gun when the power-on state information is in a driving state;
and when the gun inserting signal is detected, the power-on state information of the vehicle is adjusted to be in a high-voltage power-on state.
9. A vehicle power supply system, characterized in that the vehicle power supply system comprises: the system comprises a power supply controller, a voltage converter, a vehicle controller, a man-machine interaction unit and a remote information processor;
the power supply controller is connected with the power battery, a direct current discharge port of the power battery is connected with the voltage converter through a direct current discharge gun, the voltage converter is further connected with an industrial load, and the vehicle controller is in signal transmission with the man-machine interaction unit and the remote information processor through a CAN communication mode.
10. An automobile comprising the vehicle power supply system of claim 9.
CN202310756619.4A 2023-06-25 2023-06-25 Vehicle power supply method and system and automobile Pending CN116799906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310756619.4A CN116799906A (en) 2023-06-25 2023-06-25 Vehicle power supply method and system and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310756619.4A CN116799906A (en) 2023-06-25 2023-06-25 Vehicle power supply method and system and automobile

Publications (1)

Publication Number Publication Date
CN116799906A true CN116799906A (en) 2023-09-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310756619.4A Pending CN116799906A (en) 2023-06-25 2023-06-25 Vehicle power supply method and system and automobile

Country Status (1)

Country Link
CN (1) CN116799906A (en)

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