CN115528786A - Intelligent power supplementing method, device and equipment for low-voltage storage battery of vehicle - Google Patents
Intelligent power supplementing method, device and equipment for low-voltage storage battery of vehicle Download PDFInfo
- Publication number
- CN115528786A CN115528786A CN202211352449.5A CN202211352449A CN115528786A CN 115528786 A CN115528786 A CN 115528786A CN 202211352449 A CN202211352449 A CN 202211352449A CN 115528786 A CN115528786 A CN 115528786A
- Authority
- CN
- China
- Prior art keywords
- voltage
- low
- power
- storage battery
- supplementing
- 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
Links
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 207
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000013589 supplement Substances 0.000 claims abstract description 136
- 238000012423 maintenance Methods 0.000 claims abstract description 29
- 238000012790 confirmation Methods 0.000 claims abstract description 23
- 230000005611 electricity Effects 0.000 claims description 167
- 230000006870 function Effects 0.000 claims description 109
- 230000008901 benefit Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses an intelligent power supplementing method, device and equipment for a low-voltage storage battery of a vehicle, wherein after the power supplementing function of the low-voltage storage battery of the vehicle is activated through a switch, whether the power supplementing function needs to be started or not is determined according to the voltage of the low-voltage storage battery; after the power supplementing function is determined to need to be started, sending a confirmation message of starting the power supplementing function to a preset terminal so as to confirm whether the power supplementing function is started or not; after the preset terminal confirms the starting power supplement function, controlling a high-voltage power battery of the vehicle to supplement power for a low-voltage storage battery; and after the low-voltage storage battery is charged, determining the charging time for the next charging of the low-voltage storage battery according to the voltage and the electric quantity of the low-voltage storage battery. The final control of the user on the power supply function of the low-voltage storage battery is realized, the remote control is realized through the terminal, the problem that maintenance personnel get an electric shock when the power supply function of the low-voltage storage battery is started in vehicle maintenance can be avoided, and the problem that energy is wasted when the power supply function of the low-voltage storage battery is not started timely is solved.
Description
Technical Field
The application relates to the technical field of charging control of new energy hybrid vehicles, in particular to an intelligent power supplementing method, device and equipment for a low-voltage storage battery of a vehicle.
Background
The low-voltage storage battery is mainly used for supplying power to a vehicle starter, an ignition system, electric equipment such as lamps and wipers in the vehicle under the conditions that the vehicle engine is started or runs at a low speed and a vehicle generator does not generate electricity.
In the related art, when the voltage of a low-voltage storage battery is low, a high-voltage power battery and a direct-current converter of a vehicle are directly started to supplement power for the low-voltage storage battery, and the high-voltage power battery is disconnected until the power is supplemented to a specific voltage or a specific time to stop power supplement. However, the power supplement function of the low-voltage storage battery in the related art only uses the voltage of the low-voltage storage battery as the basis for starting the power supplement function, when the vehicle is in a maintenance state, the power supplement function of the low-voltage storage battery can be automatically triggered to be started, the vehicle can enter a high-voltage working state, vehicle maintenance personnel cannot know the change of the current state of the vehicle in time, the live operation of the maintenance personnel can be caused, and a high-voltage electric shock accident can occur.
In addition, the existing low-voltage storage battery electricity supplementing method cannot perform good electric energy management, when a high-voltage power battery of a vehicle is fed, if the electric quantity of the low-voltage storage battery is in an electricity supplementing state, the internal electric quantity of the low-voltage storage battery is enough to support the vehicle to be parked for several hours, the low-voltage storage battery can still be normally started and used, according to the existing low-voltage storage battery electricity supplementing strategy, the high-voltage power battery still serves as the low-voltage storage battery to supplement electricity, and if a driver can use the vehicle within 2 hours, the electricity supplementing will cause energy waste.
Therefore, how to enable a user to flexibly control the on and off of the power supplementing function of the low-voltage storage battery according to the use requirement is a technical problem to be solved.
Disclosure of Invention
The application mainly aims to provide an intelligent power supplementing method, device and equipment for a low-voltage storage battery of a vehicle, and aims to solve the technical problem that a user cannot control the on and off of the power supplementing function of the low-voltage storage battery in the related technology.
In a first aspect, the present application provides a method for intelligently supplementing a low-voltage battery of a vehicle, the method comprising the steps of:
after the power supply function of a low-voltage storage battery of the vehicle is activated through a switch, determining whether the power supply function needs to be started or not according to the voltage of the low-voltage storage battery;
after the power supplementing function is determined to be started, sending a confirmation message of starting the power supplementing function to a preset terminal to confirm whether the power supplementing function is started or not;
after the preset terminal confirms the starting power supplement function, controlling a high-voltage power battery of the vehicle to supplement power for the low-voltage storage battery;
and after the low-voltage storage battery is charged, determining the charging time for charging the low-voltage storage battery next time according to the voltage and the electric quantity of the low-voltage storage battery.
In some embodiments, the activating, by the switch, the power replenishing function of the low-voltage battery of the vehicle specifically includes the following steps:
through opening low voltage battery's benefit electric function switch closes the maintenance state switch of vehicle to control the driver's cabin of vehicle is locked and whole car is electrified, activates the benefit electric function of the low voltage battery of vehicle.
In some embodiments, sending a confirmation message of starting the power supplement function to the preset terminal to confirm whether the power supplement function is started includes the following steps:
sending confirmation information of whether the vehicle is in a maintenance state and confirmation information of whether the power supply function is started immediately to the preset terminal;
and if the information that the preset terminal returns that the vehicle is not in the maintenance state and the power supplement function is started immediately is received, determining that the preset terminal confirms the starting power supplement function, and otherwise, determining that the preset terminal does not confirm the starting power supplement function.
In some embodiments, after controlling the high-voltage power battery of the vehicle to replenish the low-voltage battery, the method further comprises the following steps:
when the low-voltage storage battery is determined to finish power supplement, an electric supplement finishing signal sent by the preset terminal is received, the vehicle has a power supplement fault, or an unlocking signal of a cab of the vehicle is received, the high-voltage power battery is controlled to stop supplying power for the low-voltage storage battery;
and when the time for the high-voltage power battery to supplement the electricity for the low-voltage storage battery reaches the preset electricity supplementing time, determining that the low-voltage storage battery completes electricity supplementing.
In some embodiments, after the low-voltage battery completes the power supply, determining a power supply duration for the next power supply to the low-voltage battery according to the voltage and the electric quantity of the low-voltage battery, specifically including the following steps:
recording the electricity supplementing time of the low-voltage storage battery at this time and the voltage and the electric quantity when the electricity supplementing is completed;
recording the voltage and the electric quantity of the low-voltage storage battery after the low-voltage storage battery completes electricity supplement at this time and the vehicle is placed for a preset standing time;
determining the ideal electricity supplementing duration of the low-voltage storage battery for the electricity supplementing according to the electricity supplementing duration of the low-voltage storage battery for the electricity supplementing, the voltage when the electricity supplementing is completed, the electric quantity when the electricity supplementing is completed, the voltage after standing and the electric quantity after standing;
and taking the average value of the ideal electricity supplementing time length of the low-voltage storage battery for this time of electricity supplementing and the recorded ideal electricity supplementing time length of the low-voltage storage battery for the latest set times as the preset electricity supplementing time length of the low-voltage storage battery for the next time of electricity supplementing.
In some embodiments, the determining the ideal power supplement duration of the current power supplement of the low-voltage storage battery according to the power supplement duration, the voltage when the power supplement is completed, the electric quantity when the power supplement is completed, the voltage after the standing and the electric quantity after the standing of the low-voltage storage battery specifically includes the following steps:
determining whether the voltage after standing is equal to the voltage when power supplement is completed or not, and whether the electric quantity after standing is equal to the electric quantity when power supplement is completed or not;
if so, taking the electricity supplementing time length of the current electricity supplementing of the low-voltage storage battery as the ideal electricity supplementing time length of the current electricity supplementing;
if the voltage after standing is smaller than the voltage when electricity supplementing is finished and the electric quantity after standing is smaller than the electric quantity when electricity supplementing is finished, adding a first preset time length to the electricity supplementing time length of the low-voltage storage battery for supplementing electricity at this time to obtain an ideal electricity supplementing time length of the low-voltage storage battery for supplementing electricity at this time;
if the voltage after standing is larger than the voltage when electricity supplement is completed, and the electric quantity after standing is larger than the electric quantity when electricity supplement is completed, subtracting a second preset time length from the electricity supplement time length of the low-voltage storage battery for electricity supplement at this time to obtain the ideal electricity supplement time length of the low-voltage storage battery for electricity supplement at this time.
In some embodiments, controlling a high-voltage power battery of the vehicle to supplement power for the low-voltage storage battery specifically includes the following steps:
determining the SOC value of the residual electric quantity of the high-voltage power battery;
if the SOC value of the high-voltage power battery is larger than a preset SOC threshold value, controlling the high-voltage power battery to supplement power for the low-voltage storage battery;
and if the SOC value of the high-voltage power battery is smaller than or equal to the SOC threshold value, the low-voltage storage battery is not supplied with power, and a signal of insufficient electric quantity of the high-voltage power battery is sent to the preset terminal.
In some embodiments, the determining whether power supply needs to be started according to the voltage of the low-voltage battery specifically includes the following steps:
determining whether the voltage of the low-voltage battery is less than a preset voltage;
if so, determining that the power supplement function needs to be started, otherwise, determining that the power supplement function does not need to be started.
In a second aspect, the present application also provides an intelligent power supply device for a low-voltage battery of a vehicle, the device including:
the device comprises a first determination module, a second determination module and a control module, wherein the first determination module is used for determining whether a power supplement function needs to be started or not according to the voltage of a low-voltage storage battery after the power supplement function of the low-voltage storage battery of the vehicle is activated through a switch;
the information receiving and sending module is used for sending confirmation information of starting the power supplementing function to a preset terminal after the power supplementing function is determined to be needed to be started so as to confirm whether the power supplementing function is started or not;
the power supplementing control module is used for controlling a high-voltage power battery of the vehicle to supplement power for the low-voltage storage battery after the preset terminal confirms that the power supplementing function is started;
and the second determining module is used for determining the electricity supplementing time length when the electricity is supplemented to the low-voltage storage battery next time according to the voltage and the electric quantity of the low-voltage storage battery after the electricity supplementing of the low-voltage storage battery is completed.
In a third aspect, the present application also provides a computer device comprising a processor, a memory, and a computer program stored on the memory and executable by the processor, wherein the computer program, when executed by the processor, implements the steps of the intelligent power replenishing method for a low-voltage battery of a vehicle as described above.
The application provides an intelligent power supplementing method, device and equipment for a low-voltage storage battery of a vehicle, wherein after the power supplementing function of the low-voltage storage battery of the vehicle is activated through a switch, whether the power supplementing function needs to be started or not is determined according to the voltage of the low-voltage storage battery; after the power supplementing function is determined to need to be started, sending a confirmation message of starting the power supplementing function to a preset terminal so as to confirm whether the power supplementing function is started or not; after the preset terminal confirms the starting power supplementing function, controlling a high-voltage power battery of the vehicle to supplement power for a low-voltage storage battery; and after the low-voltage storage battery is charged, determining the charging time for the next charging of the low-voltage storage battery according to the voltage and the electric quantity of the low-voltage storage battery. The final control of the user on the power supply function of the low-voltage storage battery is realized, the remote control is realized through the terminal, the problem that maintenance personnel get an electric shock when the power supply function of the low-voltage storage battery is started in vehicle maintenance can be avoided, and the problem that energy is wasted when the power supply function of the low-voltage storage battery is not started timely is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of an intelligent power supplementing method for a low-voltage battery of a vehicle according to an embodiment of the present disclosure;
FIG. 2 is a detailed flow chart of an intelligent power supplementing method for a low-voltage storage battery of a vehicle;
FIG. 3 is a schematic flow chart of a high-voltage power battery for supplying power to a low-voltage storage battery;
FIG. 4 is a schematic flow chart of the electricity supplementing duration self-learning of the low-voltage storage battery;
fig. 5 is a schematic block diagram of an intelligent power supply device for a low-voltage battery of a vehicle according to an embodiment of the present application;
fig. 6 is a block diagram schematically illustrating a structure of a computer device according to an embodiment of the present invention.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The flowcharts shown in the figures are illustrative only and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution order may be changed according to the actual situation.
The embodiment of the application provides an intelligent power supplementing method, device and equipment for a low-voltage storage battery of a vehicle. The intelligent power supplementing method for the low-voltage storage battery of the vehicle can be applied to computer equipment, and the computer equipment can be electronic equipment such as a vehicle control unit and a vehicle-mounted computer.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating an intelligent power supplement method for a low-voltage battery of a vehicle according to an embodiment of the present disclosure.
As shown in fig. 1, the method includes steps S1 to S4.
Step S1, after the power supply function of a low-voltage storage battery of the vehicle is activated through a switch, whether the power supply function needs to be started or not is determined according to the voltage of the low-voltage storage battery.
Specifically, as shown in fig. 2, the power supply function switch of the low-voltage storage battery is turned on, the maintenance state switch of the vehicle is turned off, the cab of the vehicle is locked and the whole vehicle is powered off, and the power supply function of the low-voltage storage battery of the vehicle is activated.
Exemplarily, a vehicle maintenance state switch is arranged on the vehicle, the maintenance state switch is connected with the vehicle controller, and when the vehicle is maintained, the vehicle maintenance state switch is turned on, so that the information that the vehicle is in the maintenance state can be sent to the vehicle controller. And when the vehicle maintenance state switch is closed, the vehicle is not in a maintenance state currently. And a power supply and power supply functional switch of a low-voltage storage battery is arranged on the whole vehicle MP 5. The setting opens the benefit function switch of low voltage battery, closes the maintenance state of vehicle to when the driver's cabin of vehicle is locked and whole car is electrified, activate the benefit function of low voltage battery, can guarantee when maintaining the vehicle, the benefit function of low voltage battery forbids, thereby avoid the maintainer live-wire operation high-voltage electric shock accident to appear.
Further, the determining whether to start power supplement according to the voltage of the low-voltage storage battery specifically includes: determining whether the voltage of the low-voltage battery is less than a preset voltage; if so, determining that the power supplement function needs to be started, otherwise, determining that the power supplement function does not need to be started.
Exemplarily, after the power supplement function of the low-voltage storage battery is activated, the voltage of the low-voltage storage battery can be detected through the whole vehicle data detection device T-BOX, and when the voltage of the low-voltage storage battery is smaller than the preset voltage, the low-voltage storage battery needs to be supplemented, so that the normal operation of the low-voltage storage battery is ensured.
And S2, after the power supplementing function is determined to need to be started, sending confirmation information of starting the power supplementing function to a preset terminal so as to confirm whether the power supplementing function is started or not.
Specifically, confirmation information of whether the vehicle is in a maintenance state and confirmation information of whether the power supplement function is started immediately are sent to the preset terminal; and if receiving the information that the preset terminal returns that the vehicle is not in a maintenance state and the power supplementing function is started immediately, determining that the preset terminal confirms the starting power supplementing function, otherwise, determining that the preset terminal does not confirm the starting power supplementing function.
Exemplarily, the preset terminal may be a terminal device such as a mobile phone. The whole vehicle can be in communication connection with the mobile phone terminal through the T-BOX. When the confirmation information that whether the vehicle is in a maintenance state and the confirmation information that whether the power supplementing function is started immediately are sent to the mobile phone terminal through the T-BOX, a confirmation button and a cancel button are displayed on the mobile phone terminal, and after a user clicks the confirmation button twice, the mobile phone terminal returns the information that the power supplementing function is started to the T-BOX. And if the user clicks a cancel button, the mobile phone terminal returns a signal that the power supply starting function is not confirmed to the whole vehicle.
And S3, after the preset terminal confirms the starting power supplementing function, controlling a high-voltage power battery of the vehicle to supplement power for the low-voltage storage battery.
Specifically, determining a residual capacity SOC value of the high-voltage power battery; if the SOC value of the high-voltage power battery is larger than a preset SOC threshold value, controlling the high-voltage power battery to supplement power for the low-voltage storage battery; and if the SOC value of the high-voltage power battery is smaller than or equal to the SOC threshold value, the low-voltage storage battery is not supplied with power, and a signal of low electric quantity of the high-voltage power battery is sent to the preset terminal. And the SOC threshold is 30%, so that the low-voltage storage battery is charged under the condition that the electric quantity of the high-voltage power battery is sufficient.
Exemplarily, as shown in fig. 3, after it is determined that the electric quantity of the high-voltage power battery is sufficient, the T-BOX sends a low-voltage battery power supply function starting signal, activates a vehicle control unit assembly VECU, and enables the all-in-one controller DCDC, the battery management system and the temperature control unit to activate, and perform insulation detection. If the insulation detection is not qualified, sending a high-voltage power-on failure signal to a mobile phone terminal of a user, and stopping a power supply process; if the insulation detection is qualified, the BMS is controlled to pull in and supplement the main contactor, and then whether the main contactor is successfully pulled in is judged. If the pull-in fails, a high-voltage power-on failure signal is sent; if the attraction is successful, the all-in-one auxiliary drive controller pre-charges the low-voltage storage battery and judges whether the pre-charging is successful or not. If the pre-charging fails, sending a high-voltage power-on failure signal; and if the pre-charging is successful, sending a high-voltage electrifying success signal and controlling the direct current converter DCDC to start charging. And determining whether the current temperature t of the high-voltage power battery is lower than a preset temperature threshold value t0 or not in the charging process, and if so, controlling the BMS to pull in the heating contactor to heat the high-voltage power battery.
In some embodiments, after the high-voltage power battery successfully supplements the low-voltage storage battery, when the low-voltage storage battery completes the power supplement, receives a power supplement finishing signal sent by the preset terminal, and when a vehicle has a power supplement fault or receives an unlocking signal of a cab of the vehicle, in any of 4 cases, the high-voltage power battery is controlled to stop supplementing the low-voltage storage battery.
It is worth to be noted that when the electricity supplementing time for the low-voltage storage battery by the high-voltage power battery reaches the preset time, the low-voltage storage battery is determined to complete electricity supplementing. And the low-voltage storage battery can be prevented from being overcharged by finishing the electricity supplementing when the electricity supplementing time of the low-voltage storage battery reaches the preset time.
In some embodiments, the vehicle electrical service faults include primarily high voltage faults and low voltage faults. Wherein the high voltage fault comprises: the voltage of the single battery of the high-voltage power battery is abnormal, the single battery is under-voltage, the temperature of the single battery is abnormal, and the faults of insulation or over-temperature of DCDC and the like. Wherein the low voltage fault includes: faults of low-voltage storage batteries, low-voltage signal faults of controllers, low-voltage faults of controllers such as T-BOX and the like, abnormal starting of temperature control units and the like. When the vehicle has a power supply fault, the low-voltage storage battery is stopped to be supplied with power, so that the damage to the high-voltage power battery, the low-voltage storage battery, the DCDC and other equipment caused by continuous power supply in a fault state is avoided.
In addition, in the embodiment, the mobile phone terminal sends the completion power supplement signal, so that the control on the power supplement function of the low-voltage storage battery is further ensured.
And S4, after the low-voltage storage battery is charged, determining the charging time for charging the low-voltage storage battery next time according to the voltage and the electric quantity of the low-voltage storage battery.
Specifically, as shown in fig. 4, the power supply duration of the current power supply of the low-voltage storage battery and the voltage and the electric quantity when the power supply is completed are recorded; recording the voltage and the electric quantity of the low-voltage storage battery after the low-voltage storage battery completes electricity supplement at this time and the vehicle is placed for a preset standing time; determining the ideal electricity supplementing duration of the low-voltage storage battery for the electricity supplementing according to the electricity supplementing duration, the voltage when the electricity supplementing is completed, the electric quantity when the electricity supplementing is completed, the voltage after standing and the electric quantity after standing of the low-voltage storage battery; and taking the average value of the ideal electricity supplementing time length of the low-voltage storage battery for this time of electricity supplementing and the recorded ideal electricity supplementing time length of the low-voltage storage battery for the latest set times as the preset electricity supplementing time length of the low-voltage storage battery for the next time of electricity supplementing.
It should be noted that determining the ideal electricity supplementing time of the low-voltage storage battery according to the electricity supplementing time, the voltage when electricity supplementing is completed, the electric quantity when electricity supplementing is completed, the voltage after standing and the electric quantity after standing of the low-voltage storage battery at this time specifically includes: determining whether the voltage after standing is equal to the voltage when power supplement is completed or not, and whether the electric quantity after standing is equal to the electric quantity when power supplement is completed or not; if so, taking the electricity supplementing duration of the current electricity supplementing of the low-voltage storage battery as the ideal electricity supplementing duration of the current electricity supplementing; if the voltage after standing is smaller than the voltage when electricity supplement is completed and the electric quantity after standing is smaller than the electric quantity when electricity supplement is completed, adding the electricity supplement time length of the low-voltage storage battery for electricity supplement at this time to a first preset time length to obtain the ideal electricity supplement time length of the low-voltage storage battery for electricity supplement at this time; if the voltage after standing is larger than the voltage when electricity supplement is completed, and the electric quantity after standing is larger than the electric quantity when electricity supplement is completed, subtracting a second preset time length from the electricity supplement time length of the low-voltage storage battery for electricity supplement at this time to obtain the ideal electricity supplement time length of the low-voltage storage battery for electricity supplement at this time.
It should be noted that, in the case where the low-voltage battery stops supplying power due to a failure or terminal information, it is not necessary to record the voltage and the amount of power of the low-voltage battery.
It should be understood that the low-voltage battery is affected by the ambient temperature, and when the vehicle is just completed with power supply, the voltage of the low-voltage battery may have problems such as false high and false low, so that misjudgment is easily caused, and the battery cannot be charged to an ideal state after charging is completed according to the preset power supply duration. Therefore, the storage battery is frequently supplemented or overcharged, and the low-voltage storage battery is damaged. Therefore, after the vehicle is stationary for a period of time, the real values of the voltage and the electric quantity of the low-voltage storage battery are obtained, and then whether the problem of virtual high and virtual low exists in electricity supplement is judged according to the comparison between the real values and the values when charging is completed, so that the voltage and the electric quantity of the low-voltage storage battery are close to the real values when electricity supplement is completed by increasing the electricity supplement time or reducing the electricity supplement time. Therefore, the obtained ideal electricity supplementing duration of the electricity supplementing at this time enables the voltage and the electric quantity after the electricity supplementing at this time to be closer to the time of the true value.
Exemplarily, after the low-voltage storage battery finishes power supplement, the voltage U1 when the low-voltage storage battery finishes power supplement and the electric quantity E1 when the low-voltage storage battery finishes power supplement are immediately obtained and recorded through a sensor and a battery management system, and the power supplement time T of the power supplement is recorded. And after the vehicle is kept still for 2 hours, the voltage U1 and the electric quantity E2 of the low-voltage storage battery after the vehicle is kept still are obtained again. Next, a determination is made as to whether U2 is equal to U1 and E2 is equal to E1. And if U2= U1, taking the electricity supplementing time T of the current electricity supplementing of the low-voltage storage battery as the ideal electricity supplementing time of the current electricity supplementing. And if U2 is less than U1 and E2 is less than E1, adding the electricity supplementing time of the current electricity supplementing of the low-voltage storage battery to a first preset time 10min to obtain the ideal electricity supplementing time of the current electricity supplementing of the low-voltage storage battery, namely T +10min. If U2 is greater than U1 and E2 is greater than E1, subtracting the second preset time from the electricity supplementing time of the low-voltage storage battery for electricity supplementing at this time by 5min to obtain the ideal electricity supplementing time of the low-voltage storage battery for electricity supplementing at this time, namely T-5min. And if the recorded voltage and electric quantity data of the low-voltage storage battery is less than 10 times, taking the average value of the ideal power supplementing time of the current power supplementing and the ideal power supplementing time recorded before as the preset power supplementing time of the next power supplementing time of the storage battery. And if the recorded voltage and electric quantity data of the low-voltage storage battery are more than 10 times, taking the average value of the ideal power supplementing time of the current power supplementing and the recorded power supplementing time of the last 10 times as the preset power supplementing time of the next power supplementing of the storage battery. The self-learning function of low-voltage storage battery electricity supplementing is realized, the electricity supplementing time is adjusted according to storage batteries with different capacities and the service performance capacities of the storage batteries, and the electricity supplementing result of the low-voltage storage battery is continuously corrected and perfected through self-learning.
According to the embodiment of the application, after the power supply function of the low-voltage storage battery of the vehicle is activated through the switch, whether the power supply function needs to be started or not is determined according to the voltage of the low-voltage storage battery; after the power supplementing function is determined to need to be started, sending a confirmation message of starting the power supplementing function to a preset terminal so as to confirm whether the power supplementing function is started or not; after the preset terminal confirms the starting power supplement function, controlling a high-voltage power battery of the vehicle to supplement power for a low-voltage storage battery; and after the low-voltage storage battery is charged, determining the charging time for charging the low-voltage storage battery next time according to the voltage and the electric quantity of the low-voltage storage battery. The final control of starting the power supply function of the low-voltage storage battery by a user is realized, and the remote control is realized through the terminal. And whether the power supplement function of the low-voltage storage battery is started or not is controlled through a switch and terminal information double-insurance strategy, so that the safety and timeliness of power supplement of the storage battery are ensured. The problem that maintenance personnel get an electric shock due to the fact that the low-voltage storage battery power supply function is started in vehicle maintenance can be avoided, and the problem that energy is wasted due to the fact that the low-voltage storage battery power supply function is not started timely is solved. The self-learning function of low-voltage storage battery electricity supplementing is realized, the electricity supplementing time is adjusted according to the storage batteries with different capacities and the service performance capacities of the storage batteries, and the electricity supplementing result of the low-voltage storage battery is continuously corrected and perfected through self-learning.
Referring to fig. 5, fig. 5 is a schematic block diagram of an intelligent power supply device for a low-voltage battery of a vehicle according to an embodiment of the present disclosure.
As shown in fig. 5, the apparatus includes:
the device comprises a first determination module, a second determination module and a control module, wherein the first determination module is used for determining whether a power supplement function needs to be started or not according to the voltage of a low-voltage storage battery after the power supplement function of the low-voltage storage battery of the vehicle is activated through a switch;
the information receiving and sending module is used for sending confirmation information of starting the power supplementing function to a preset terminal after the power supplementing function is determined to be needed to be started so as to confirm whether the power supplementing function is started or not;
the power supply control module is used for controlling a high-voltage power battery of the vehicle to supply power to the low-voltage storage battery after the preset terminal confirms the starting power supply function;
and the second determining module is used for determining the electricity supplementing time length of the next electricity supplementing time of the low-voltage storage battery according to the voltage and the electric quantity of the low-voltage storage battery after the electricity supplementing of the low-voltage storage battery is completed.
Wherein the first determining module is further configured to:
through opening the benefit electric function switch of low pressure battery closes the maintenance state switch of vehicle to control the driver's cabin of vehicle is locked and whole car is electrified, activates the benefit electric function of the low pressure battery of vehicle.
Wherein the information transceiver module is further configured to:
sending confirmation information of whether the vehicle is in a maintenance state and confirmation information of whether the power supply function is started immediately to the preset terminal;
and if receiving the information that the preset terminal returns that the vehicle is not in a maintenance state and the power supplementing function is started immediately, determining that the preset terminal confirms the starting power supplementing function, otherwise, determining that the preset terminal does not confirm the starting power supplementing function.
Wherein the compensation control module is further configured to:
when the low-voltage storage battery is determined to finish power supplement, an electric supplement finishing signal sent by the preset terminal is received, the vehicle has a power supplement fault, or an unlocking signal of a cab of the vehicle is received, the high-voltage power battery is controlled to stop supplying power for the low-voltage storage battery;
and when the time for the high-voltage power battery to supplement the electricity for the low-voltage storage battery reaches the preset electricity supplementing time, determining that the low-voltage storage battery completes electricity supplementing.
Wherein the second determining module is further configured to:
recording the electricity supplementing time of the low-voltage storage battery at this time and the voltage and the electric quantity when the electricity supplementing is completed;
recording the voltage and the electric quantity of the low-voltage storage battery after the low-voltage storage battery completes power supply at this time and after the vehicle is kept still for a preset standing time;
determining the ideal electricity supplementing duration of the low-voltage storage battery for the electricity supplementing according to the electricity supplementing duration of the low-voltage storage battery for the electricity supplementing, the voltage when the electricity supplementing is completed, the electric quantity when the electricity supplementing is completed, the voltage after standing and the electric quantity after standing;
and taking the average value of the ideal electricity supplementing time length of the low-voltage storage battery for this time of electricity supplementing and the recorded ideal electricity supplementing time length of the low-voltage storage battery for the latest set times as the preset electricity supplementing time length of the low-voltage storage battery for the next time of electricity supplementing.
Wherein the second determination module is further to:
determining whether the voltage after standing is equal to the voltage when power supplement is completed or not, and whether the electric quantity after standing is equal to the electric quantity when power supplement is completed or not;
if so, taking the electricity supplementing time length of the current electricity supplementing of the low-voltage storage battery as the ideal electricity supplementing time length of the current electricity supplementing;
if the voltage after standing is smaller than the voltage when electricity supplement is completed and the electric quantity after standing is smaller than the electric quantity when electricity supplement is completed, adding the electricity supplement time length of the low-voltage storage battery for electricity supplement at this time to a first preset time length to obtain the ideal electricity supplement time length of the low-voltage storage battery for electricity supplement at this time;
if the voltage after standing is larger than the voltage when electricity supplement is completed, and the electric quantity after standing is larger than the electric quantity when electricity supplement is completed, subtracting a second preset time length from the electricity supplement time length of the low-voltage storage battery for electricity supplement at this time to obtain the ideal electricity supplement time length of the low-voltage storage battery for electricity supplement at this time.
Wherein the compensation control module is further configured to:
determining the SOC value of the residual electric quantity of the high-voltage power battery;
if the SOC value of the high-voltage power battery is larger than a preset SOC threshold value, controlling the high-voltage power battery to supplement power for the low-voltage storage battery;
and if the SOC value of the high-voltage power battery is smaller than or equal to the SOC threshold value, the low-voltage storage battery is not supplied with power, and a signal of insufficient electric quantity of the high-voltage power battery is sent to the preset terminal.
Wherein the first determining module is further configured to:
determining whether the voltage of the low-voltage battery is less than a preset voltage;
if so, determining that the power supplement function needs to be started, otherwise, determining that the power supplement function does not need to be started.
It should be noted that, as will be clear to those skilled in the art, for convenience and brevity of description, the specific working processes of the apparatus and the modules and units described above may refer to the corresponding processes in the foregoing embodiments, and are not described herein again.
The apparatus provided by the above embodiments may be implemented in the form of a computer program, which can be run on a computer device as shown in fig. 6.
Referring to fig. 6, fig. 6 is a schematic block diagram illustrating a structure of a computer device according to an embodiment of the present disclosure. The computer device may be a vehicle control unit.
As shown in fig. 6, the computer device includes a processor, a memory, and a network interface connected by a system bus, wherein the memory may include a nonvolatile storage medium and an internal memory.
The non-volatile storage medium may store an operating system and a computer program. The computer program includes program instructions that, when executed, cause a processor to perform any one of the methods for intelligently recharging a low-voltage battery of a vehicle.
The processor is used for providing calculation and control capability and supporting the operation of the whole computer equipment.
The internal memory provides an environment for the execution of a computer program on a non-volatile storage medium, which, when executed by the processor, causes the processor to perform any one of the methods for intelligently recharging a low-voltage battery of a vehicle.
The network interface is used for network communication, such as sending assigned tasks and the like. Those skilled in the art will appreciate that the architecture shown in fig. 6 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
It should be understood that the Processor may be a Central Processing Unit (CPU), and the Processor may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
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 a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An intelligent power supplementing method for a low-voltage storage battery of a vehicle is characterized by comprising the following steps:
after the power supply function of a low-voltage storage battery of the vehicle is activated through a switch, determining whether the power supply function needs to be started or not according to the voltage of the low-voltage storage battery;
after the power supplementing function is determined to need to be started, sending a confirmation message of starting the power supplementing function to a preset terminal so as to confirm whether the power supplementing function is started or not;
after the preset terminal confirms the starting power supplement function, controlling a high-voltage power battery of the vehicle to supplement power for the low-voltage storage battery;
and after the low-voltage storage battery is charged, determining the charging time for charging the low-voltage storage battery next time according to the voltage and the electric quantity of the low-voltage storage battery.
2. An intelligent power supply method for a low-voltage battery of a vehicle according to claim 1, wherein the power supply function of the low-voltage battery of the vehicle is activated by a switch, and the method comprises the following steps:
through opening the benefit electric function switch of low pressure battery closes the maintenance state switch of vehicle to control the driver's cabin of vehicle is locked and whole car is electrified, activates the benefit electric function of the low pressure battery of vehicle.
3. The intelligent power supplementing method for the low-voltage storage battery of the vehicle as claimed in claim 1, wherein the method for sending the start confirmation information of the power supplementing function to the preset terminal to confirm whether the power supplementing function is started comprises the following steps:
sending confirmation information of whether the vehicle is in a maintenance state and confirmation information of whether the power supplementing function is started immediately to the preset terminal;
and if the information that the preset terminal returns that the vehicle is not in the maintenance state and the power supplement function is started immediately is received, determining that the preset terminal confirms the starting power supplement function, and otherwise, determining that the preset terminal does not confirm the starting power supplement function.
4. The intelligent power supplementing method for the low-voltage storage battery of the vehicle according to claim 1, characterized by further comprising the following steps after controlling the high-voltage power battery of the vehicle to supplement power for the low-voltage storage battery:
when the low-voltage storage battery finishes power supplement, receives a power supplement finishing signal sent by the preset terminal, the vehicle has a power supplement fault or receives an unlocking signal of a cab of the vehicle, the high-voltage power battery is controlled to stop supplementing power for the low-voltage storage battery;
and when the time for the high-voltage power battery to supplement the electricity for the low-voltage storage battery reaches the preset electricity supplementing time, determining that the low-voltage storage battery completes electricity supplementing.
5. The intelligent power supplementing method for the low-voltage storage battery of the vehicle according to claim 4, wherein after the power supplementing of the low-voltage storage battery is completed, the power supplementing time length for the next power supplementing of the low-voltage storage battery is determined according to the voltage and the electric quantity of the low-voltage storage battery, and the method specifically comprises the following steps:
recording the electricity supplementing time of the low-voltage storage battery at this time and the voltage and the electric quantity when the electricity supplementing is completed;
recording the voltage and the electric quantity of the low-voltage storage battery after the low-voltage storage battery completes power supply at this time and after the vehicle is kept still for a preset standing time;
determining the ideal electricity supplementing duration of the low-voltage storage battery for the electricity supplementing according to the electricity supplementing duration, the voltage when the electricity supplementing is completed, the electric quantity when the electricity supplementing is completed, the voltage after standing and the electric quantity after standing of the low-voltage storage battery;
and taking the average value of the ideal power supplementing time length of the current power supplementing of the low-voltage storage battery and the recorded ideal power supplementing time length of the latest set times of the low-voltage storage battery as the preset power supplementing time length when the low-voltage storage battery is powered on next time.
6. The intelligent power supplementing method for the low-voltage storage battery of the vehicle according to claim 5, wherein the ideal power supplementing duration of the current power supplementing of the low-voltage storage battery is determined according to the power supplementing duration, the voltage when the power supplementing is completed, the electric quantity when the power supplementing is completed, the voltage after standing and the electric quantity after standing of the low-voltage storage battery, and the method specifically comprises the following steps:
determining whether the voltage after standing is equal to the voltage when power supplement is completed or not, and whether the electric quantity after standing is equal to the electric quantity when power supplement is completed or not;
if so, taking the electricity supplementing time length of the current electricity supplementing of the low-voltage storage battery as the ideal electricity supplementing time length of the current electricity supplementing;
if the voltage after standing is smaller than the voltage when electricity supplement is completed and the electric quantity after standing is smaller than the electric quantity when electricity supplement is completed, adding the electricity supplement time length of the low-voltage storage battery for electricity supplement at this time to a first preset time length to obtain the ideal electricity supplement time length of the low-voltage storage battery for electricity supplement at this time;
and if the voltage after standing is greater than the voltage when electricity supplement is completed, and the electric quantity after standing is greater than the electric quantity when electricity supplement is completed, subtracting a second preset time length from the electricity supplement time length of the low-voltage storage battery for the current electricity supplement to obtain the ideal electricity supplement time length of the low-voltage storage battery for the current electricity supplement.
7. An intelligent power supplementing method for a low-voltage battery of a vehicle according to claim 1, wherein a high-voltage power battery of the vehicle is controlled to supplement power for the low-voltage battery, and the intelligent power supplementing method specifically comprises the following steps:
determining the SOC value of the residual electric quantity of the high-voltage power battery;
if the SOC value of the high-voltage power battery is larger than a preset SOC threshold value, controlling the high-voltage power battery to supplement power for the low-voltage storage battery;
and if the SOC value of the high-voltage power battery is smaller than or equal to the SOC threshold value, the low-voltage storage battery is not supplied with power, and a signal of low electric quantity of the high-voltage power battery is sent to the preset terminal.
8. An intelligent power supplementing method for a low-voltage battery of a vehicle according to claim 1, wherein said determining whether power supplementing needs to be started or not based on the voltage of said low-voltage battery comprises the following steps:
determining whether the voltage of the low-voltage battery is less than a preset voltage;
if so, determining that the power supplement function needs to be started, otherwise, determining that the power supplement function does not need to be started.
9. An intelligent power supplement device for a low-voltage battery of a vehicle, comprising:
the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining whether a power supplementing function needs to be started according to the voltage of a low-voltage storage battery of a vehicle after the power supplementing function of the low-voltage storage battery is activated through a switch;
the information receiving and sending module is used for sending confirmation information of starting the power supplementing function to a preset terminal after the power supplementing function is determined to be needed to be started so as to confirm whether the power supplementing function is started or not;
the power supply control module is used for controlling a high-voltage power battery of the vehicle to supply power to the low-voltage storage battery after the preset terminal confirms the starting power supply function;
and the second determining module is used for determining the electricity supplementing time length of the next electricity supplementing time of the low-voltage storage battery according to the voltage and the electric quantity of the low-voltage storage battery after the electricity supplementing of the low-voltage storage battery is completed.
10. A computer arrangement comprising a processor, a memory, and a computer program stored on the memory and executable by the processor, wherein the computer program, when executed by the processor, performs the steps of any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352449.5A CN115528786A (en) | 2022-10-31 | 2022-10-31 | Intelligent power supplementing method, device and equipment for low-voltage storage battery of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352449.5A CN115528786A (en) | 2022-10-31 | 2022-10-31 | Intelligent power supplementing method, device and equipment for low-voltage storage battery of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115528786A true CN115528786A (en) | 2022-12-27 |
Family
ID=84703397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211352449.5A Pending CN115528786A (en) | 2022-10-31 | 2022-10-31 | Intelligent power supplementing method, device and equipment for low-voltage storage battery of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115528786A (en) |
-
2022
- 2022-10-31 CN CN202211352449.5A patent/CN115528786A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130249468A1 (en) | Battery management system for restricted idle vehicles | |
| US10191459B2 (en) | Control device of electrical apparatus and energy management system | |
| CA2639377A1 (en) | Vehicle starting assist system | |
| CN103935258A (en) | Power supply system of vehicle and vehicle including same | |
| US9789771B2 (en) | Single battery architecture for electrification vehicle | |
| CN113147503B (en) | Power management method for electric vehicle | |
| CN112477605B (en) | Vehicle power-on and power-off control method and control system | |
| CN104884296A (en) | Power supply system for vehicle, vehicle equipped with same, and method for controlling power supply system for vehicle | |
| CN111433076B (en) | Electrical device for an electrically drivable motor vehicle and method for controlling the same | |
| CN112622870A (en) | Engine starting method, vehicle electrical system and storage medium | |
| CN111071042A (en) | Control system and vehicle | |
| CN111114532A (en) | Control method of fuel cell vehicle and vehicle control unit | |
| CN111409503A (en) | Power system of miniature electric automobile and control method thereof | |
| CN114619917A (en) | Charging control method and device and vehicle | |
| JP2017061217A (en) | Charging equipment | |
| US20190054871A1 (en) | Stop control circuit | |
| CN115528786A (en) | Intelligent power supplementing method, device and equipment for low-voltage storage battery of vehicle | |
| CN116094109A (en) | Power supply circuit and operation machine | |
| CN112721734B (en) | Control method and device for charging vehicle | |
| CN112895980B (en) | New energy automobile low-temperature charging method and device | |
| JP7373114B2 (en) | Vehicle power control device | |
| CN114789674A (en) | Charging control method for whole electric vehicle controller and whole electric vehicle controller | |
| JP2021078282A (en) | Electric vehicle charging system, charging cable, and electric vehicle power source system | |
| CN113043972B (en) | DC-DC converter, vehicle, and control method for hybrid system | |
| CN113752969B (en) | Vehicle power supply system and vehicle comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |