CN114683961B - Control method and device of vehicle-mounted power supply system, vehicle and storage medium - Google Patents
Control method and device of vehicle-mounted power supply system, vehicle and storage medium Download PDFInfo
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- CN114683961B CN114683961B CN202011634510.6A CN202011634510A CN114683961B CN 114683961 B CN114683961 B CN 114683961B CN 202011634510 A CN202011634510 A CN 202011634510A CN 114683961 B CN114683961 B CN 114683961B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- 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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- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control method and device of a vehicle-mounted power supply system, a vehicle and a storage medium, wherein the control method of the vehicle-mounted power supply system comprises the following steps: and acquiring an SOC value or a voltage value of the vehicle-mounted battery, determining a power transmission risk level of the vehicle-mounted power supply system according to the SOC value or the voltage value, and sending the power transmission risk level to the vehicle-mounted controller so that the vehicle-mounted controller can carry out load management according to the power transmission risk level. Therefore, the power transmission risk level of the power supply system is accurately judged, and each vehicle-mounted controller is subjected to load management based on the power transmission risk level, so that the effects of avoiding vehicle-mounted battery power shortage and saving the energy of the whole vehicle can be achieved.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a method for controlling a vehicle-mounted power supply system, a device for controlling a vehicle-mounted power supply system, a vehicle, and a computer readable storage medium.
Background
Currently, electric vehicles on the market can be divided into two types according to whether an on-vehicle battery sensor IBS is configured or not, which are respectively: an electric vehicle equipped with an in-vehicle battery sensor IBS and an electric vehicle equipped with no in-vehicle battery sensor IBS. For an electric automobile provided with a vehicle-mounted battery sensor IBS, broadcasting a voltage value signal output by the vehicle-mounted battery sensor IBS to a vehicle-mounted controller on the vehicle through an engine management system EMS or an integrated automobile body control module IBC, and performing self power management and function implementation by the vehicle-mounted controller according to the voltage value; for an electric vehicle without an on-board battery sensor IBS, an on-board controller on the vehicle performs power management and function implementation according to the voltage value acquired by the on-board controller.
However, for an electric vehicle configured with the vehicle-mounted battery sensor IBS, the network voltage value output by the vehicle-mounted battery sensor IBS cannot truly represent the residual electric quantity of the vehicle-mounted battery, and according to the power management and the function implementation performed by the vehicle-mounted battery sensor IBS, the energy-saving effect cannot be achieved and the risk of power shortage of the vehicle-mounted battery is avoided; for an electric automobile without a vehicle-mounted battery sensor IBS, a vehicle-mounted controller with a long arrangement position and a vehicle-mounted battery distance is inaccurate in voltage acquisition due to a line loss problem, and when the voltage of the whole automobile is lowered, part of the vehicle-mounted controllers enter a low-voltage working mode in advance due to a voltage drop problem, so that part of functions cannot be realized. Therefore, the power management based on the above manner may not be in line with the actual situation of the power supply, resulting in energy waste and shortened battery life.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide a vehicle-mounted power management and control method, which can accurately determine the power transmission risk level of a power system, and enable each vehicle-mounted controller to perform load management based on the power transmission risk level, so as to achieve the effects of avoiding power shortage of a vehicle-mounted battery and saving energy of the whole vehicle.
A second object of the present invention is to propose a storage medium.
A third object of the present invention is to provide a control device for a vehicle-mounted power supply system.
A fourth object of the present invention is to propose a vehicle.
To achieve the above object, an embodiment of a first aspect of the present invention provides a method for controlling a vehicle-mounted power supply system, including: acquiring an SOC value or a voltage value of a vehicle-mounted battery; determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC value or the voltage value; and sending the power transmission risk level to the vehicle-mounted controller so that the vehicle-mounted controller can carry out load management according to the power transmission risk level.
According to the management and control method of the vehicle-mounted power supply system, the SOC value or the voltage value of the vehicle-mounted battery is obtained, the power transmission risk level of the current vehicle-mounted power supply system is judged according to the obtained SOC value or the obtained voltage value, the power transmission risk level is sent to the vehicle-mounted controller, and load management is carried out by the vehicle-mounted controller according to the power transmission risk level, so that the load management is carried out by each vehicle-mounted controller on the basis of the power transmission risk level through accurately judging the power transmission risk level of the power supply system, and the effects of avoiding power shortage of the vehicle-mounted battery and saving energy of the whole vehicle are achieved.
In addition, the control method of the vehicle-mounted power supply system according to the embodiment of the invention can also have the following additional technical characteristics:
according to one embodiment of the present invention, determining a power transmission risk level of an in-vehicle power supply system according to an SOC value includes: acquiring the current environmental temperature of the vehicle-mounted battery; and determining the power transmission risk level of the vehicle-mounted power supply system according to the ambient temperature and the SOC value.
According to one embodiment of the present invention, determining a power transmission risk level of an in-vehicle power supply system according to an ambient temperature and an SOC value includes: determining an SOC limit threshold and an SOC recovery threshold corresponding to each power transmission risk level according to the environmental temperature; and determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC limiting threshold value, the SOC recovery threshold value, the SOC value and the duration of the SOC value.
According to one embodiment of the present invention, determining a power transmission risk level of a vehicle-mounted power supply system according to a voltage value includes: acquiring a voltage limit threshold value and a voltage recovery threshold value corresponding to each power transmission risk level; and determining the power transmission risk level of the vehicle-mounted power supply system according to the voltage limit threshold value, the voltage recovery threshold value, the voltage value and the duration of the voltage value.
According to one embodiment of the present invention, an in-vehicle controller performs load management according to a power transmission risk level, including: if the local voltage of the vehicle-mounted controller is in the normal working voltage range, controlling the corresponding load according to the power transmission risk level so as to carry out load management; and if the local voltage of the vehicle-mounted controller is not in the normal working voltage range, controlling the corresponding load according to the local voltage so as to carry out load management.
According to one embodiment of the present invention, before determining the power transmission risk level of the in-vehicle power supply system according to the SOC value or the voltage value, the method further includes: judging whether the SOC value or the voltage value is successfully obtained; if the SOC value or the voltage value is successfully obtained, determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC value or the voltage value; and if the SOC value or the voltage value is not successfully acquired, a risk level acquisition failure signal is sent to the vehicle-mounted controller, so that the vehicle-mounted controller can control the corresponding load according to the local voltage to carry out load management.
According to one embodiment of the present invention, the in-vehicle controller includes one or more of a vehicle machine, an air conditioner controller, a seat controller, and a door controller.
To achieve the above object, a second aspect of the present invention provides a computer-readable storage medium having stored thereon a control program for a vehicle-mounted power supply system, which when executed by an actuator, performs the above-described control method for a vehicle-mounted power supply system.
According to the computer readable storage medium, the management and control program of the vehicle-mounted power supply system is executed, and the power transmission risk level of the power supply system is accurately judged, so that each vehicle-mounted controller is subjected to load management based on the power transmission risk level, and the effects of avoiding power shortage of a vehicle-mounted battery and saving energy of the whole vehicle are achieved.
To achieve the above object, an embodiment of a third aspect of the present invention provides a control device for a vehicle-mounted power supply system, including: the acquisition module is used for acquiring the SOC value of the vehicle-mounted battery and judging whether the SOC value is effective or not; the output module is used for outputting corresponding power transmission dangerous grades according to the ambient temperature and the SOC value if the SOC value is effective; the judging module is used for judging whether the local voltages of the vehicle machine, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are in a normal working voltage range or not; and the control module is used for making control strategies of the vehicle machine, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller according to the power transmission danger level if the power transmission danger level is within the normal working point voltage range.
According to the management and control device of the vehicle-mounted power supply system, the SOC value of the vehicle-mounted battery is obtained through the obtaining module, whether the SOC value is effective is judged, the output module outputs corresponding power transmission dangerous grades according to the ambient temperature and the SOC value when the SOC value is effective, whether local voltages of the vehicle, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are in a normal working voltage range is judged through the judging module, and when the power supply is in the normal working point voltage range, control strategies of the vehicle, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are formulated according to the power transmission dangerous grades through the control module, so that load management is carried out on each vehicle-mounted controller based on the power transmission dangerous grades through accurately judging the power transmission dangerous grades, and the effect of avoiding power consumption of the vehicle-mounted battery and saving energy of the whole vehicle is achieved.
To achieve the above object, a fourth aspect of the present invention provides a vehicle including a management and control device of the above-mentioned vehicle-mounted power supply system.
According to the vehicle provided by the embodiment of the invention, the management and control device of the vehicle-mounted power supply system can accurately judge the power transmission risk level of the power supply system, and each vehicle-mounted controller can carry out load management based on the power transmission risk level, so that the effects of avoiding the power shortage of the vehicle-mounted battery and saving the energy of the whole vehicle are achieved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a method of managing an in-vehicle power system according to one embodiment of the invention;
FIG. 2 is a flow chart of a method of controlling a vehicle power system according to another embodiment of the present invention;
FIG. 3 is a block diagram of a management and control apparatus of a vehicle-mounted power supply system according to an embodiment of the present invention;
FIG. 4 is a system diagram of a management and control device of a vehicle-mounted power system according to an embodiment of the present invention;
fig. 5 is a block diagram of a vehicle according to one embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes a management method, a management device, a vehicle and a storage medium of a vehicle-mounted power supply system according to an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method of an in-vehicle power supply system according to an embodiment of the present invention. As shown in fig. 1, the control method of the vehicle-mounted power supply system may include the following steps:
s101, acquiring an SOC value or a voltage value of the vehicle-mounted battery.
Specifically, for a vehicle equipped with an in-vehicle battery sensor IBS, an SOC value of the in-vehicle battery is obtained by the in-vehicle battery sensor IBS; the vehicle-mounted battery sensor IBS is mainly used for detecting signals of a charging state SOC, a functional state SOF, a health state SOH, a voltage U, a current I and the like of the vehicle-mounted battery, and sending the signals to the integrated vehicle body controller IBC through the LIN bus.
For a vehicle not provided with the vehicle-mounted battery sensor IBS, the voltage value of the vehicle-mounted battery can be directly measured through the voltage acquisition circuit, for example, a flexible circuit board FPC can be arranged in the vehicle-mounted battery, the flexible circuit board FPC can be provided with a plurality of voltage acquisition pieces, each voltage acquisition piece corresponds to a battery module of the vehicle-mounted battery, and the voltage acquisition pieces are used for acquiring voltage information of the corresponding battery module.
S102, determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC value or the voltage value.
Specifically, after acquiring the SOC value or the voltage value of the vehicle-mounted battery, the integrated body controller IBC may determine the power transmission risk level of the vehicle-mounted power supply system according to a certain rule according to the acquired SOC value or voltage value of the vehicle-mounted battery.
According to one embodiment of the present invention, determining a power transmission risk level of an in-vehicle power supply system according to an SOC value includes: acquiring the current environmental temperature of the vehicle-mounted battery; and determining the power transmission risk level of the vehicle-mounted power supply system according to the ambient temperature and the SOC value. Because the SOC value of the vehicle-mounted battery is associated with the ambient temperature, the power transmission risk level can be determined through the ambient temperature and the SOC value together, and therefore the judgment accuracy can be improved.
As shown in table 1, the rule for determining the current power transmission risk level according to the obtained SOC value of the vehicle-mounted power supply under different temperature conditions is as follows.
TABLE 1
That is, under different temperature conditions, the current power transmission risk level may be determined according to the acquired SOC limit threshold value, SOC recovery threshold value, SOC value, and duration combination of the SOC value.
According to another embodiment of the present invention, determining a power transmission risk level of an in-vehicle power supply system according to a voltage value includes: acquiring a voltage limit threshold value and a voltage recovery threshold value corresponding to each power transmission risk level; and determining the power transmission risk level of the vehicle-mounted power supply system according to the voltage limit threshold value, the voltage recovery threshold value, the voltage value and the duration of the voltage value.
Specifically, for a vehicle without the vehicle-mounted battery sensor IBS, the current power transmission risk level of the vehicle-mounted power supply system is determined by using information such as a voltage value, a voltage recovery threshold, a voltage limit threshold, and a voltage duration of the vehicle-mounted power supply acquired by the power acquisition circuit of the integrated body controller IBC.
As shown in table 2, the rule for determining the power transmission risk level of the in-vehicle power supply system from the different voltage thresholds and voltage durations is as follows.
TABLE 2
And S103, the power transmission risk level is sent to the vehicle-mounted controller so that the vehicle-mounted controller can carry out load management according to the power transmission risk level.
Specifically, the vehicle-mounted controller can combine information such as power transmission risk level and local working voltage of the vehicle-mounted controller to perform a corresponding power management strategy. Optionally, the vehicle-mounted controller includes one or more of a vehicle machine, an air conditioner controller, a seat controller, and a door controller.
According to one embodiment of the present invention, an in-vehicle controller performs load management according to a power transmission risk level, including: if the local voltage of the vehicle-mounted controller is in the normal working voltage range, controlling the corresponding load according to the power transmission risk level so as to carry out load management; and if the local voltage of the vehicle-mounted controller is not in the normal working voltage range, controlling the corresponding load according to the local voltage so as to carry out load management.
That is, when the local voltage of the in-vehicle controller is within the normal operating voltage range, the corresponding load is controlled according to the power transmission risk level, and when the local voltage of the in-vehicle controller is not within the normal operating voltage range, the corresponding load is controlled according to the local voltage.
Therefore, the power transmission risk level of the current vehicle-mounted battery is judged through the obtained current SOC value or voltage value of the vehicle-mounted power supply, the vehicle-mounted controller carries out corresponding load management according to the current power transmission risk level, and a corresponding control strategy is executed, so that the service life of the power supply can be prolonged, and meanwhile, the energy consumption of the power supply is reduced.
According to one embodiment of the present invention, before determining the power transmission risk level of the in-vehicle power supply system according to the SOC value or the voltage value, the method further includes: judging whether the SOC value or the voltage value is successfully obtained; if the SOC value or the voltage value is successfully obtained, determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC value or the voltage value; and if the SOC value or the voltage value is not successfully acquired, a risk level acquisition failure signal is sent to the vehicle-mounted controller, so that the vehicle-mounted controller can control the corresponding load according to the local voltage to carry out load management.
That is, under normal conditions, the integrated body controller IBC may determine the power transmission risk level of the whole vehicle power supply system according to the obtained SOC value of the vehicle-mounted battery or the voltage value measured by the voltage acquisition circuit, and broadcast the power transmission risk level to other vehicle-mounted controllers on the vehicle, where the other controllers manage their loads after receiving the power transmission risk level. Under abnormal conditions, if the integrated vehicle body controller IBC cannot receive the SOC signal or cannot obtain the voltage value of the vehicle-mounted battery or fails, the integrated vehicle body controller IBC will not send the power transmission risk level, and at this time, each vehicle-mounted controller performs load management according to the voltage value obtained by the self-voltage sampling circuit.
Fig. 2 is a flowchart of a control method of an in-vehicle power supply system according to another embodiment of the present invention.
As shown in fig. 2, after the vehicle is powered on, the integrated vehicle body controller IBC may receive the SOC value detected by the vehicle-mounted battery sensor IBS in real time, and if the SOC value signal is received, the integrated vehicle body controller IBC outputs a corresponding power transmission risk level according to the ambient temperature and the SOC value, and then each vehicle-mounted controller determines whether the corresponding local working voltage is normal, if so, the corresponding vehicle-mounted controller formulates a load management policy according to the power transmission risk level, and if not, the corresponding vehicle-mounted controller executes the load management policy formulated according to the local voltage. If the integrated vehicle body controller IBC does not receive the SOC value signal, the integrated vehicle body controller IBC detects the voltage value of the vehicle-mounted battery through the voltage acquisition circuit of the integrated vehicle body controller IBC, if the voltage value of the vehicle-mounted battery is detected, the corresponding power transmission dangerous level is output according to the voltage value, then each vehicle-mounted controller further judges whether the corresponding local working voltage is normal or not, if the corresponding local working voltage is normal, the corresponding controller formulates a load management strategy according to the power transmission dangerous level, and if the corresponding working voltage is abnormal, the corresponding controller determines the load management strategy according to the local voltage. If the integrated body controller IBC does not detect the voltage value of the vehicle-mounted battery, the power transmission risk level is not sent or a power transmission risk level abnormality signal is sent to each vehicle-mounted controller, and at this time, each vehicle-mounted controller determines a load management strategy according to the local voltage.
Therefore, the power transmission risk level of the power supply system is accurately judged through the integrated body controller IBC, non-safety related load management of the whole vehicle is achieved, and the effects of avoiding power shortage of the vehicle-mounted battery and saving energy of the whole vehicle are achieved.
In summary, according to the management and control method of the vehicle-mounted power supply system according to the embodiment of the invention, the SOC value or the voltage value of the vehicle-mounted battery is obtained, the power transmission risk level of the current vehicle-mounted power supply system is judged according to the obtained SOC value or voltage value, the power transmission risk level is sent to the vehicle-mounted controller, and the vehicle-mounted controller carries out load management according to the power transmission risk level, so that each vehicle-mounted controller carries out load management based on the power transmission risk level by accurately judging the power transmission risk level of the power supply system, the effects of avoiding power shortage of the vehicle-mounted battery and saving energy of the whole vehicle are achieved, and the method is suitable for vehicle types with different configurations (aiming at whether the vehicle-mounted battery sensor IBS is configured or not), and has high platformization and universalization degrees.
Furthermore, the present invention provides a method for controlling a vehicle-mounted battery based on the foregoing embodiment, and a computer readable storage medium storing a program for controlling a vehicle-mounted battery, where the program is executed by a processor to implement a specific implementation of the method for controlling a vehicle-mounted battery according to the foregoing embodiment of the present invention.
According to the computer readable storage medium, the management and control program of the vehicle-mounted power supply system is executed, and the power transmission risk level of the power supply system is accurately judged, so that each vehicle-mounted controller is subjected to load management based on the power transmission risk level, and the effects of avoiding power shortage of a vehicle-mounted battery and saving energy of the whole vehicle are achieved.
Fig. 3 is a block diagram of a management and control apparatus of a vehicle-mounted power supply system according to an embodiment of the present invention.
As shown in fig. 3, the control device 100 of the in-vehicle power supply system includes: the device comprises an acquisition module 10, an output module 20, a judging module 30 and a control module 40.
The acquiring module 10 is configured to acquire an SOC value of the vehicle-mounted battery, and determine whether the SOC value is valid; the output module 20 is configured to output a corresponding power transmission risk level according to the ambient temperature and the SOC value if the SOC value is valid; the judging module 30 is used for judging whether the local voltages of the vehicle, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are in the normal working voltage range; the control module 40 is configured to formulate control strategies for the vehicle, the air conditioning controller, the seat controller, the driver side door controller, and the passenger side door controller based on the power delivery hazard level if the vehicle is within the normal operating point voltage range.
Specifically, referring to fig. 4, the management and control device 100 of the vehicle-mounted power supply system may be integrated in an integrated vehicle body controller IBC, which is connected to a vehicle-mounted battery sensor IBS through a LIN bus, and obtains an SOC value and temperature information of the vehicle-mounted battery through the vehicle-mounted battery sensor IBS; the current voltage value of the vehicle-mounted battery is obtained through sampling by the sampling circuit; CAN communication is performed with vehicle-mounted controllers such as a vehicle machine, an air conditioner controller, a seat controller, a driver side door controller, and a passenger side door controller to transmit a power transmission risk level obtained based on an SOC value or a voltage value of a vehicle-mounted battery to each of the vehicle-mounted controllers for load management by each of the vehicle-mounted controllers.
According to the management and control device of the vehicle-mounted power supply system, the SOC value of the vehicle-mounted battery is obtained through the obtaining module, whether the SOC value is effective is judged, the output module outputs corresponding power transmission dangerous grades according to the ambient temperature and the SOC value when the SOC value is effective, whether local voltages of the vehicle, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are in a normal working voltage range is judged through the judging module, and when the power supply is in the normal working point voltage range, control strategies of the vehicle, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are formulated according to the power transmission dangerous grades through the control module, so that load management is carried out on each vehicle-mounted controller based on the power transmission dangerous grades through accurately judging the power transmission dangerous grades, and the effect of avoiding power consumption of the vehicle-mounted battery and saving energy of the whole vehicle is achieved.
Fig. 5 is a block diagram of a vehicle according to one embodiment of the invention.
As shown in fig. 5, the vehicle 1000 includes the management and control apparatus 100 of the aforementioned in-vehicle power supply system.
According to the vehicle provided by the embodiment of the invention, the management and control device of the vehicle-mounted power supply system can accurately judge the power transmission risk level of the power supply system, and each vehicle-mounted controller can carry out load management based on the power transmission risk level, so that the effects of avoiding the power shortage of the vehicle-mounted battery and saving the energy of the whole vehicle are achieved.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium may even be paper or other suitable medium upon which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
In the description of the present specification, descriptions with reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the described features may be combined in any suitable manner in one or more embodiments or examples.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. The control method of the vehicle-mounted power supply system is characterized by comprising the following steps of:
acquiring an SOC value or a voltage value of a vehicle-mounted battery;
determining a power transmission risk level of a vehicle-mounted power supply system according to the SOC value or the voltage value;
the power transmission risk level is sent to a vehicle-mounted controller, so that the vehicle-mounted controller carries out load management according to the power transmission risk level;
the determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC value comprises the following steps:
acquiring the current environmental temperature of the vehicle-mounted battery;
and determining the power transmission risk level of the vehicle-mounted power supply system according to the ambient temperature and the SOC value.
2. The method of controlling an in-vehicle power supply system according to claim 1, wherein the determining a power transmission risk level of the in-vehicle power supply system according to the ambient temperature and the SOC value includes:
determining an SOC limit threshold and an SOC recovery threshold corresponding to each power transmission risk level according to the environmental temperature;
and determining the power transmission risk level of the vehicle-mounted power supply system according to the SOC limit threshold, the SOC recovery threshold, the SOC value and the duration of the SOC value.
3. The method for controlling an in-vehicle power supply system according to claim 1, wherein determining a power transmission risk level of the in-vehicle power supply system from the voltage value includes:
acquiring a voltage limit threshold value and a voltage recovery threshold value corresponding to each power transmission risk level;
and determining the power transmission risk level of the vehicle-mounted power supply system according to the voltage limit threshold, the voltage recovery threshold, the voltage value and the duration of the voltage value.
4. The control method of an in-vehicle power supply system according to any one of claims 1 to 3, characterized in that the in-vehicle controller performs load management according to the power transmission risk level, including:
if the local voltage of the vehicle-mounted controller is in the normal working voltage range, controlling the corresponding load according to the power transmission risk level to carry out load management;
and if the local voltage of the vehicle-mounted controller is not in the normal working voltage range, controlling the corresponding load according to the local voltage so as to carry out load management.
5. The method of controlling an in-vehicle power supply system according to claim 4, characterized by further comprising, before determining a power transmission risk level of the in-vehicle power supply system from the SOC value or the voltage value:
judging whether the SOC value or the voltage value is successfully acquired;
if the SOC value or the voltage value is successfully obtained, determining a power transmission risk level of the vehicle-mounted power supply system according to the SOC value or the voltage value;
and if the SOC value or the voltage value is not successfully acquired, a risk level acquisition failure signal is sent to the vehicle-mounted controller, so that the vehicle-mounted controller can control the corresponding load according to the local voltage to carry out load management.
6. The method of claim 1, wherein the vehicle controller comprises one or more of a vehicle, an air conditioner controller, a seat controller, and a door controller.
7. A computer-readable storage medium, on which a control program of a vehicle-mounted power supply system is stored, which program, when executed by an actuator, performs the control method of a vehicle-mounted power supply system according to any one of claims 1 to 6.
8. A management and control device for a vehicle-mounted power supply system, the device comprising:
the acquisition module is used for acquiring the SOC value of the vehicle-mounted battery and judging whether the SOC value is effective or not;
the output module is used for outputting a corresponding power transmission dangerous grade according to the ambient temperature and the SOC value if the SOC value is effective;
the judging module is used for judging whether the local voltages of the vehicle machine, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller are in a normal working voltage range or not;
and the control module is used for making control strategies of the vehicle machine, the air conditioner controller, the seat controller, the driver side door controller and the passenger side door controller according to the power transmission danger level if the power transmission danger level is within the normal working point voltage range.
9. A vehicle comprising the management and control device of the in-vehicle power supply system according to claim 8.
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| JP2017005912A (en) * | 2015-06-12 | 2017-01-05 | パナソニックＩｐマネジメント株式会社 | Power management system, power management method, and program |
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| KR101628516B1 (en) * | 2014-11-05 | 2016-06-08 | 현대자동차주식회사 | Method for controlling ldc voltage of hybrid vehicle |
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| JP2017005912A (en) * | 2015-06-12 | 2017-01-05 | パナソニックＩｐマネジメント株式会社 | Power management system, power management method, and program |
| CN106042964A (en) * | 2016-06-27 | 2016-10-26 | 北京新能源汽车股份有限公司 | Electric automobile low-voltage storage battery control method and device and electric automobile |
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