CN117067913A - Storage battery charging method and device, vehicle-mounted terminal and vehicle - Google Patents

Storage battery charging method and device, vehicle-mounted terminal and vehicle Download PDF

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Publication number
CN117067913A
CN117067913A CN202311034499.3A CN202311034499A CN117067913A CN 117067913 A CN117067913 A CN 117067913A CN 202311034499 A CN202311034499 A CN 202311034499A CN 117067913 A CN117067913 A CN 117067913A
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CN
China
Prior art keywords
vehicle
voltage calibration
working condition
charging
calibration table
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Pending
Application number
CN202311034499.3A
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Chinese (zh)
Inventor
杨美玲
李冰涛
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Publication date
Application filed by Great Wall Motor Co Ltd filed Critical Great Wall Motor Co Ltd
Priority to CN202311034499.3A priority Critical patent/CN117067913A/en
Publication of CN117067913A publication Critical patent/CN117067913A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
    • B60W2555/20—Ambient conditions, e.g. wind or rain
    • 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

Abstract

The application is applicable to the technical field of automobiles, and provides a storage battery charging method, a storage battery charging device, a vehicle-mounted terminal and a vehicle, wherein the method comprises the following steps: when a charging request is detected, determining the current working condition of the vehicle; acquiring environment information of an area where a vehicle is located; selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environmental information and the current working condition; the target voltage calibration table records environment information and corresponding charging parameters under the current working condition; the battery of the vehicle is charged based on the charging parameter. Compared with the prior art that the storage battery is charged by adopting fixed charging parameters, the method enables the storage battery to be charged by using different charging parameters under different environment information and working conditions, thereby avoiding the problems of large noise, frequent vibration and the like when the vehicle charges the storage battery under certain environments and working conditions, and improving the NVH performance of the vehicle.

Description

Storage battery charging method and device, vehicle-mounted terminal and vehicle
Technical Field
The application belongs to the technical field of automobiles, and particularly relates to a storage battery charging method and device, a vehicle-mounted terminal and a vehicle.
Background
At present, a hybrid electric vehicle adopts a storage battery to provide electric quantity support for a low-voltage load, an engine, a generator and a Direct Current (DC/DC) converter of the vehicle provide possibility for continuous operation of the storage battery, the engine of the vehicle operates to drive the generator to generate power, and then the DC/DC converts high voltage of the power battery into low voltage which can be used by the storage battery so as to realize charging operation of the storage battery.
Existing battery charging methods typically use a fixed calibrated voltage Meter (MAP) to determine the battery charge voltage and control the DC/DC output of the charge voltage to charge the battery. However, the optimal charging parameters required by the storage battery are usually different under different environments of the vehicle, so if the storage battery is charged by adopting the charging parameters fixed in the fixed calibration voltmeter in the prior art, the problems of high noise, frequent vibration and the like of the vehicle under certain worse environments are easily caused, and the NVH (Noise, vibration, harshness) performance of the vehicle is reduced.
Disclosure of Invention
The embodiment of the application provides a storage battery charging method and device, a vehicle-mounted terminal and a vehicle, and improves NVH performance of the vehicle.
In a first aspect, an embodiment of the present application provides a method for charging a storage battery, including:
when a charging request is detected, determining the current working condition of the vehicle;
acquiring environment information of an area where the vehicle is located;
selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environment information and the current working condition; the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition;
and charging a storage battery of the vehicle based on the charging parameter.
Optionally, the determining the current working condition of the vehicle includes:
acquiring vehicle information of the vehicle;
and determining the current working condition according to the vehicle information.
Optionally, the vehicle information includes an idle speed flag bit and a vehicle speed; the idle speed zone bit is used for representing the pointing direction of an idle speed pointer of the vehicle; the current working conditions comprise an idle working condition and a non-idle working condition; the determining the current working condition according to the vehicle information comprises the following steps:
if the idle speed flag bit is a valid bit within a set time period and the vehicle speed is 0 within the set time period, determining that the current working condition is the idle speed working condition; the idle speed flag bit is a valid bit, and the idle speed pointer points to a first area;
If the idle speed flag bit is an invalid bit within the set time period or the vehicle speed is not 0 within the set time period, determining that the current working condition is the non-idle speed working condition; the idle flag bit being an invalid bit indicates that the idle pointer points to other areas than the first area.
Optionally, the environmental information includes temperature; the charging parameter includes a charging voltage; and selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environmental information and the current working condition, wherein the target voltage calibration table comprises:
if the temperature is smaller than a first threshold value, selecting a voltage calibration table with recorded charging voltage larger than a second threshold value from the plurality of voltage calibration tables as the target voltage calibration table;
and if the temperature is greater than or equal to the first threshold value, determining the target voltage calibration table according to the current working condition.
Optionally, the current working condition includes an idle working condition and a non-idle working condition; the step of determining the target voltage calibration table according to the current working condition comprises the following steps:
if the current working condition is the idle working condition, selecting a voltage calibration table with the recorded charging voltage smaller than a third threshold value from the plurality of voltage calibration tables as the target voltage calibration table; wherein the third threshold is less than the second threshold;
And if the current working condition is the non-idle working condition, selecting a voltage calibration table with the recorded charging voltage between the second threshold value and the third threshold value from the plurality of voltage calibration tables as the target voltage calibration table.
Optionally, the current working condition includes an idle working condition; the step of determining the target voltage calibration table according to the current working condition comprises the following steps:
if the current working condition is the idle working condition, determining the number of equipment which is required to be powered by a generator of the vehicle at present;
and determining the target voltage calibration table according to the number of the devices.
Optionally, the determining the target voltage calibration table according to the number of devices includes:
if the number of the devices is greater than or equal to a fourth threshold value, selecting a voltage calibration table with recorded charging voltage smaller than a fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table; wherein the fifth threshold is less than the second threshold;
and if the number of the devices is smaller than the fourth threshold value, selecting a voltage calibration table with recorded charging voltage between the second threshold value and the fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table.
In a second aspect, an embodiment of the present application provides a battery charging apparatus, including:
the first determining unit is used for determining the current working condition of the vehicle when the charging request is detected;
the first acquisition unit is used for acquiring environment information of an area where the vehicle is located;
the first selecting unit is used for selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environmental information and the current working condition; the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition;
and the charging unit is used for charging the storage battery of the vehicle based on the charging parameters.
In a third aspect, an embodiment of the present application provides a vehicle-mounted terminal, including: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the battery charging method according to any one of the first aspects when executing the computer program.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by a processor, implements a method of charging a battery as in any one of the first aspects above.
In a fifth aspect, embodiments of the present application provide a computer program product enabling an in-vehicle terminal to carry out the battery charging method according to any one of the first aspects described above, when the computer program product is run on the in-vehicle terminal.
In a sixth aspect, an embodiment of the present application provides a vehicle including an in-vehicle terminal for performing the battery charging method according to any one of the first aspects.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
according to the storage battery charging method provided by the embodiment of the application, when a charging request is detected, the current working condition of a vehicle is determined, and the environmental information of the area where the vehicle is located is obtained; then, combining the environment information and the current working condition, selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables, wherein the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition; compared with the prior art that the storage battery is charged by adopting fixed charging parameters, the method can flexibly determine different target voltage calibration tables by combining environment information and current working conditions, so that the storage battery can be charged finally based on different charging parameters recorded by different target voltage tables, the problems of high noise, frequent vibration and the like when the vehicle charges the storage battery under certain environments and working conditions are avoided, and the NVH performance of the vehicle is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for charging a storage battery according to an embodiment of the present application;
fig. 2 is a flowchart of a method for charging a storage battery according to another embodiment of the present application;
FIG. 3 is a flowchart illustrating a method for charging a battery according to still another embodiment of the present application;
fig. 4 is a flowchart illustrating a method for charging a storage battery according to another embodiment of the present application;
fig. 5 is a schematic structural diagram of a battery charging device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a vehicle-mounted terminal according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In practical application, a hybrid electric vehicle adopts a storage battery to provide electric quantity support for a low-voltage load, an engine, a generator and a Direct Current (DC/DC) of the vehicle provide possibility for continuous operation of the storage battery, the engine of the vehicle operates to drive the generator to generate electricity, and then the DC/DC converts high voltage of the power battery into low voltage which can be used by the storage battery so as to realize charging operation of the storage battery.
Based on this, in all embodiments of the application, the vehicle is a hybrid vehicle.
Referring to fig. 1, fig. 1 is a flowchart illustrating an implementation of a method for charging a storage battery according to an embodiment of the application. In the embodiment of the application, the execution main body of the storage battery charging method is a vehicle-mounted terminal.
As shown in fig. 1, the method for charging a storage battery according to an embodiment of the present application may include S101 to S104, which are described in detail as follows:
in S101, when a charge request is detected, a current operating condition of the vehicle is determined.
In practical applications, a vehicle generally adopts its own battery to provide power support for a low-voltage load in the vehicle, and based on this, in order to ensure that the battery can continuously work, a user may send a charging request for the battery to the vehicle-mounted terminal.
In the embodiment of the present application, the detection of the charging request by the vehicle-mounted terminal may be: a preset operation for the vehicle is detected. The preset operation may be set according to actual needs, and is not limited herein. For example, the preset operation may be clicking on a preset control in the vehicle. Based on the above, when detecting that the preset control in the vehicle is clicked, the vehicle-mounted terminal indicates that the preset operation is detected, that is, the charging request is detected.
When the vehicle-mounted terminal detects the charging request, the current working condition of the vehicle can be determined. The current working condition refers to the working condition of the vehicle at the moment when the charging request is detected.
It should be noted that the working conditions of the vehicle include, but are not limited to: idle and non-idle conditions. The idle speed working condition is a working condition of the vehicle, and refers to that an engine of the vehicle is operated under a neutral condition. Non-idle conditions are also an operating condition of the vehicle, meaning that the vehicle's engine is operating in conditions other than neutral.
It will be appreciated that when the vehicle engine is running, the vehicle accelerator pedal is fully released, i.e. when the accelerator pedal is not depressed, and the engine is at idle, i.e. the vehicle is in idle.
In one embodiment of the present application, in order to improve the accuracy of determining the current working condition, the vehicle-mounted terminal may specifically determine the current working condition of the vehicle through steps S201 to S202 shown in fig. 2, which is described in detail as follows:
in S201, vehicle information of the vehicle is acquired.
In the present embodiment, the vehicle information includes, but is not limited to, an idle flag bit and a vehicle speed. The idle speed zone bit is used for representing the pointing direction of an idle speed pointer of the vehicle.
Based on this, in one implementation manner of this embodiment, the vehicle-mounted terminal may acquire the engine tachometer in real time through the instrument panel connected to the vehicle-mounted terminal in a wireless communication manner, and determine the direction of the idle pointer according to the engine tachometer, so as to determine the idle flag bit.
In another implementation manner of the embodiment, the vehicle-mounted terminal can acquire the speed of the vehicle in real time through a speed sensor connected with the vehicle-mounted terminal in a wireless communication manner.
In S202, the current operating condition is determined according to the vehicle information.
In one embodiment of the present application, in conjunction with S201, when the vehicle information includes an idle flag bit and a vehicle speed, the vehicle terminal may specifically determine the current working condition of the vehicle by the following steps, which are described in detail as follows:
if the idle speed flag bit is a valid bit within a set time period and the vehicle speed is 0 within the set time period, determining that the current working condition is the idle speed working condition; the idle speed flag bit is a valid bit, and the idle speed pointer points to a first area;
if the idle speed flag bit is an invalid bit within the set time period or the vehicle speed is not 0 within the set time period, determining that the current working condition is the non-idle speed working condition; the idle flag bit being an invalid bit indicates that the idle pointer points to other areas than the first area.
In this embodiment, when the vehicle-mounted terminal detects that the idle speed flag bit is the valid bit within the set duration and the vehicle speed is 0 within the set duration, it indicates that the engine of the vehicle is idling and the accelerator pedal of the vehicle is not stepped on, so the vehicle-mounted terminal can determine that the current working condition of the vehicle is the idle speed working condition. The set duration may be determined according to actual needs, which is not limited herein.
It should be noted that the idle speed flag bit is a valid bit, which indicates that the idle speed pointer of the vehicle points to the first area, that is, the pointer in the engine tachometer in the instrument panel points to the first scale range. The first scale range may be determined according to actual needs, and is not limited herein, based on which the first area may be determined according to the first scale range.
In this embodiment, when the vehicle-mounted terminal detects that the idle speed flag bit is an invalid bit within the set duration, or the vehicle speed is not 0 within the set duration, it indicates that the engine of the vehicle is running normally and is not idling, or the accelerator pedal of the vehicle is in a stepping state, so that the vehicle-mounted terminal can determine that the current working condition of the vehicle is a non-idle working condition.
It should be noted that the idle flag bit being the invalid bit indicates that the idle pointer of the vehicle points to the other area than the first area, that is, the pointer in the engine tachometer in the instrument panel points to the second scale range. The second scale range may be determined according to actual needs, and is not limited herein, and other areas may be determined according to the second scale range based on this.
In another embodiment of the present application, in combination with S201, the vehicle information may further include a state of charge and a temperature of the battery, based on which the vehicle terminal may further determine a current operating condition of the vehicle according to the idle flag bit, the vehicle speed, the state of charge of the battery, and the temperature of the battery.
In S102, environmental information of an area where the vehicle is located is acquired.
In practical applications, since the temperature affects whether the engine of the vehicle can be successfully started or not, and the starting of the engine is related to the charging of the storage battery, in order to ensure the starting performance of the engine, in the embodiment of the application, the environmental information may be the temperature.
Based on the above, in one implementation manner of the embodiment of the present application, the vehicle-mounted terminal may acquire the temperature of the area where the vehicle is located in real time through a temperature sensor connected to the vehicle-mounted terminal in wireless communication.
In S103, according to the environmental information and the current working condition, selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables; and the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition.
In the embodiment of the application, the vehicle-mounted terminal prestores a plurality of voltage calibration tables, and different voltage calibration tables are used for recording different environment information and corresponding charging parameters under different vehicle working conditions. The charging parameters include, but are not limited to, a charging voltage of the battery, a state of charge of the battery, and a temperature of the battery.
It should be noted that the pre-stored plurality of voltage calibration tables include, but are not limited to: the first voltage calibration meter, the second voltage calibration meter and the third voltage calibration meter. The charging voltage in the first voltage calibration table is larger than a second threshold value, the charging voltage in the second voltage calibration table is smaller than a third threshold value, and the charging voltage in the third voltage calibration table is between the third threshold value and the second threshold value. Wherein the third threshold is smaller than the second threshold, and the second threshold and the third threshold may be determined according to actual needs, which is not limited herein. For example, the second threshold may be determined according to a charging voltage of the storage battery at normal temperature.
In the embodiment of the application, when the environmental information is the temperature, different temperatures of the area where the vehicle is located can correspond to different target voltage calibration table determination modes. The target voltage calibration meter refers to a voltage calibration meter which needs to be adopted when the storage battery is charged.
Target voltage calibration table determination means include, but are not limited to: and determining a target voltage calibration table according to the current working condition of the vehicle, and directly determining that the charging voltage is greater than a second threshold value, namely the first voltage calibration table is the target voltage calibration table.
When the charging parameter is the charging voltage, the engine is started under the low-temperature environment and requires larger torque, and the engine is started and is related to the charging of the storage battery, so that the vehicle is in the low-temperature environment when the temperature of the area where the vehicle is positioned is smaller than a first threshold value, and the vehicle-mounted terminal can directly determine the first voltage calibration table as the target voltage calibration table, and the vehicle is not in the low-temperature environment when the temperature of the area where the vehicle is positioned is greater than or equal to the first threshold value, so that the vehicle-mounted terminal can determine the target voltage calibration table according to the current working condition of the vehicle. Based on the above, the vehicle-mounted terminal can store the corresponding relation between the different temperatures and the different target voltage calibration table determination modes in an associated manner. The first threshold may be determined according to actual needs, and is not limited herein.
Based on this, in one embodiment of the present application, in order to improve the accuracy of determining the target voltage calibration table, the vehicle terminal may specifically determine the target voltage calibration table through steps S301 to S302 as shown in fig. 3, which is described in detail as follows:
in S301, if the temperature is less than the first threshold, a voltage calibration table with a recorded charging voltage greater than a second threshold is selected from the plurality of voltage calibration tables as the target voltage calibration table.
In this embodiment, when the vehicle terminal detects that the temperature of the area where the vehicle is located is less than the first threshold, it indicates that the vehicle is in a low-temperature environment, so, in order to ensure the starting performance of the engine so that the storage battery is charged successfully, the vehicle terminal may determine, as the target voltage calibration table, a voltage calibration table in which charging voltages recorded in the plurality of voltage calibration tables are greater than the second threshold, that is, the first voltage calibration table.
In S302, if the temperature is greater than or equal to the first threshold, the target voltage calibration table is determined according to the current working condition.
In this embodiment, when the vehicle-mounted terminal detects that the temperature of the area where the vehicle is located is greater than or equal to the first threshold, it indicates that the vehicle is not in a low-temperature environment, and therefore, the vehicle-mounted terminal can determine the target voltage calibration table according to the current working condition of the vehicle.
In this embodiment, in combination with S101 to S103, when the current working condition of the vehicle is an idle working condition, because the battery is charged with a larger voltage under the idle working condition, the vehicle is easy to generate problems such as large noise and frequent vibration, that is, the NVH performance of the vehicle is reduced, so when the vehicle is in the idle working condition, the vehicle-mounted terminal can determine the target voltage calibration table by using the voltage calibration table, that is, the second voltage calibration table, with the charging voltages recorded in the voltage calibration tables being smaller than the third threshold. When the current working condition of the vehicle is a non-idle working condition, the storage battery is charged by using larger voltage, and the problems of large noise, frequent vibration and the like of the vehicle are not caused, namely the NVH performance of the vehicle is not reduced, so that when the vehicle is in the non-idle working condition, the vehicle-mounted terminal can determine the target voltage calibration table by using the voltage calibration table, namely the third voltage calibration table, of which the charging voltages recorded in the voltage calibration tables are between the second threshold value and the third threshold value. Based on the above, the vehicle-mounted terminal can store the corresponding relations between the different working conditions and the different target voltage calibration tables in an associated mode.
Based on this, in one embodiment of the present application, the vehicle terminal may specifically implement step S302 by the following steps, which are described in detail below:
If the current working condition is the idle working condition, selecting a voltage calibration table with the recorded charging voltage smaller than a third threshold value from the plurality of voltage calibration tables as the target voltage calibration table; wherein the third threshold is less than the second threshold;
and if the current working condition is the non-idle working condition, selecting a voltage calibration table with the recorded charging voltage between the second threshold value and the third threshold value from the plurality of voltage calibration tables as the target voltage calibration table.
In this embodiment, when the vehicle terminal detects that the current working condition of the vehicle is an idle working condition, it indicates that the engine is idling, so, in order to avoid the problems of high noise and frequent vibration of the vehicle, that is, to improve the NVH performance of the vehicle, and further to improve the user experience, the vehicle terminal may select, from a plurality of voltage calibration tables, a voltage calibration table, that is, a second voltage calibration table, in which the recorded charging voltage is less than a third threshold, as the target voltage calibration table.
When the vehicle-mounted terminal detects that the current working condition of the vehicle is a non-idle working condition, in order to avoid damage to the storage battery caused by too low charging voltage of the storage battery and prolong the service life of the storage battery, the vehicle-mounted terminal can select a voltage calibration table, namely a third voltage calibration table, with the recorded charging voltage between a second threshold value and a third threshold value from a plurality of voltage calibration tables as a target voltage calibration table.
In S104, a battery of the vehicle is charged based on the charging parameter.
In the embodiment of the application, taking the charging parameter as the charging voltage as an example, the vehicle-mounted terminal can control the direct-current converter in the vehicle to output the charging voltage in the target voltage calibration table to charge the storage battery of the vehicle after determining the target voltage calibration table.
The above can show that, in the method for charging the storage battery provided by the embodiment of the application, when the charging request is detected, the current working condition of the vehicle is determined, and the environmental information of the area where the vehicle is located is obtained; then, combining the environment information and the current working condition, selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables, wherein the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition; compared with the prior art that the storage battery is charged by adopting fixed charging parameters, the method can flexibly determine different target voltage calibration tables by combining environment information and current working conditions, so that the storage battery can be charged finally based on different charging parameters recorded by different target voltage tables, the problems of high noise, frequent vibration and the like generated when the vehicle charges the storage battery under certain environments and working conditions are avoided, and the NVH performance of the vehicle is improved.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a battery charging method according to another embodiment of the application. In contrast to the embodiment corresponding to fig. 3, in this embodiment, when the current working condition of the vehicle is the idle working condition, step S302 may specifically include S401 to S402, which are described in detail below:
in S401, if the current working condition is the idle working condition, the number of devices that the vehicle currently needs a generator to supply power to is determined.
In S402, the target voltage calibration table is determined according to the number of devices.
In this embodiment, when the vehicle terminal detects that the current working condition of the vehicle is an idle working condition, since the generator is required to supply power for charging the storage battery, in order to avoid the problem of low NVH performance of the vehicle caused by too high power generation load, the vehicle terminal may determine the number of devices that the generator is required to supply power for the vehicle at present, and determine the target voltage calibration table according to the number of devices.
It should be noted that different numbers of devices may correspond to different target voltage calibration tables. When the number of the devices is greater than or equal to the fourth threshold, it indicates that the power generation load is too high, so the vehicle-mounted terminal may use, as the target voltage calibration table, a voltage calibration table in which the recorded charging voltage is less than the fifth threshold (i.e., the "third threshold" described above) selected from the plurality of voltage calibration tables, that is, the second voltage calibration table is the target voltage calibration table. When the number of the devices is smaller than the fourth threshold, the power generation load is lower, so that the vehicle-mounted terminal can take a voltage calibration table, which is selected from the plurality of voltage calibration tables and is recorded as the charging voltage, between the second threshold and the fifth threshold (namely, between the second threshold and the third threshold as described above) as a target voltage calibration table, namely, the third voltage calibration table is a target voltage calibration table. Based on the above, the vehicle-mounted terminal can store the corresponding relations between different equipment numbers and different target voltage calibration tables in an associated mode. The fourth threshold may be determined according to actual needs, and is not limited herein.
Therefore, in this embodiment, the in-vehicle terminal may compare the number of devices described above with the fourth threshold.
Based on this, in one embodiment of the present application, the vehicle terminal may specifically implement step S402 by the following steps, which are described in detail below:
if the number of the devices is greater than or equal to a fourth threshold value, selecting a voltage calibration table with recorded charging voltage smaller than a fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table; wherein the fifth threshold is less than the second threshold;
and if the number of the devices is smaller than the fourth threshold value, selecting a voltage calibration table with recorded charging voltage between the second threshold value and the fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table.
In this embodiment, when the number of the devices is greater than or equal to the fourth threshold, it indicates that the power generation load is too high, so the vehicle terminal may use, as the target voltage calibration table, a voltage calibration table in which the recorded charging voltage is less than the fifth threshold (i.e., the "third threshold") selected from the plurality of voltage calibration tables, that is, the second voltage calibration table is the target voltage calibration table.
When the vehicle-mounted terminal detects that the number of the devices is smaller than the fourth threshold value, the vehicle-mounted terminal indicates that the power generation load is lower, so that the vehicle-mounted terminal can take a voltage calibration table, which is selected from a plurality of voltage calibration tables and is recorded between the second threshold value and the fifth threshold value (namely, between the second threshold value and the third threshold value), as a target voltage calibration table, namely, the third voltage calibration table is the target voltage calibration table.
As can be seen from the above, in the method for charging the storage battery provided in the embodiment, when the current working condition is detected to be the idle working condition, the number of devices that the generator is currently required to supply power to the vehicle can be determined, so that the target voltage calibration table is determined according to the number of devices. In order to avoid low NVH performance of the vehicle caused by overhigh power generation load in the idle working condition, namely, the NVH performance of the vehicle in the idle working condition is further improved.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
Corresponding to a battery charging method described in the above embodiments, fig. 5 shows a schematic structural diagram of a battery charging device according to an embodiment of the present application, and for convenience of explanation, only the portions related to the embodiment of the present application are shown. Referring to fig. 5, the battery charging apparatus 500 includes: a first determination unit 51, a first acquisition unit 52, a first selection unit 53, and a charging unit 54. Wherein:
The first determining unit 51 is configured to determine a current operating condition of the vehicle when the charging request is detected.
The first acquisition unit 52 is configured to acquire environmental information of an area where the vehicle is located.
The first selecting unit 53 is configured to select a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environmental information and the current working condition; and the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition.
The charging unit 54 is configured to charge a storage battery of the vehicle based on the charging parameter.
In one embodiment of the present application, the first determining unit 51 specifically includes: a second acquisition unit and a second determination unit. Wherein:
the second acquisition unit is used for acquiring vehicle information of the vehicle.
And the second determining unit is used for determining the current working condition according to the vehicle information.
In one embodiment of the present application, the vehicle information includes an idle flag bit and a vehicle speed; the idle speed zone bit is used for representing the pointing direction of an idle speed pointer of the vehicle; the current working conditions comprise an idle working condition and a non-idle working condition; the second determining unit specifically includes: a third determination unit and a fourth determination unit. Wherein:
The third determining unit is used for determining that the current working condition is the idle working condition if the idle marker bit is a valid bit within a set duration and the vehicle speed is 0 within the set duration; the idle speed flag bit is a valid bit, and the idle speed pointer points to a first area.
The fourth determining unit is used for determining that the current working condition is the non-idle working condition if the idle speed flag bit is an invalid bit within the set time period or the vehicle speed is not 0 within the set time period; the idle flag bit being an invalid bit indicates that the idle pointer points to other areas than the first area.
In one embodiment of the application, the environmental information includes temperature; the charging parameter includes a charging voltage; the first selecting unit 53 specifically includes: a second selection unit and a fifth determination unit. Wherein:
and the second selecting unit is used for selecting a voltage calibration table with the recorded charging voltage larger than a second threshold value from the plurality of voltage calibration tables as the target voltage calibration table if the temperature is smaller than the first threshold value.
And the fifth determining unit is used for determining the target voltage calibration table according to the current working condition if the temperature is greater than or equal to the first threshold value.
In one embodiment of the present application, the current operating conditions include idle operating conditions and non-idle operating conditions; the fifth determination unit specifically includes: a third selection unit and a fourth selection unit. Wherein:
the third selecting unit is used for selecting a voltage calibration table with the recorded charging voltage smaller than a third threshold value from the voltage calibration tables as the target voltage calibration table if the current working condition is the idle working condition; wherein the third threshold is less than the second threshold.
And the fourth selecting unit is used for selecting a voltage calibration table with the recorded charging voltage between the second threshold value and the third threshold value from the plurality of voltage calibration tables as the target voltage calibration table if the current working condition is the non-idle working condition.
In one embodiment of the application, the current operating condition includes an idle operating condition; the fifth determining unit specifically includes: a sixth determination unit and a seventh determination unit. Wherein:
and the sixth determining unit is used for determining the number of equipment which is required to be powered by the generator currently for the vehicle if the current working condition is the idle working condition.
And the seventh determining unit is used for determining the target voltage calibration table according to the equipment number.
In one embodiment of the present application, the seventh determining unit specifically includes: a fifth selection unit and a sixth selection unit. Wherein:
the fifth selecting unit is used for selecting a voltage calibration table with the recorded charging voltage smaller than a fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table if the number of the devices is larger than or equal to a fourth threshold value; wherein the fifth threshold is less than the second threshold.
And the sixth selecting unit is used for selecting a voltage calibration table with recorded charging voltage between the second threshold value and the fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table if the number of the devices is smaller than the fourth threshold value.
It should be noted that, because the content of information interaction and execution process between the above devices/units is based on the same concept as the method embodiment of the present application, specific functions and technical effects thereof may be referred to in the method embodiment section, and will not be described herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
Fig. 6 is a schematic structural diagram of a vehicle-mounted terminal according to an embodiment of the present application. As shown in fig. 6, the in-vehicle terminal 6 of this embodiment includes: at least one processor 60 (only one shown in fig. 6), a memory 61, and a computer program 62 stored in the memory 61 and executable on the at least one processor 60, the processor 60 implementing the steps in any of the various battery charging method embodiments described above when executing the computer program 62.
The in-vehicle terminal may include, but is not limited to, a processor 60, a memory 61. It will be appreciated by those skilled in the art that fig. 6 is merely an example of the in-vehicle terminal 6 and is not intended to limit the in-vehicle terminal 6, and may include more or less components than illustrated, or may combine certain components, or different components, such as may also include input-output devices, network access devices, etc.
The processor 60 may be a central processing unit (Central Processing Unit, CPU), the processor 60 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 61 may in some embodiments be an internal storage unit of the in-vehicle terminal 6, such as a memory of the in-vehicle terminal 6. The memory 61 may also be an external storage device of the in-vehicle terminal 6 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the in-vehicle terminal 6. Further, the memory 61 may also include both an internal storage unit and an external storage device of the in-vehicle terminal 6. The memory 61 is used for storing an operating system, application programs, boot loader (BootLoader), data, other programs, etc., such as program codes of the computer program. The memory 61 may also be used for temporarily storing data that has been output or is to be output.
Embodiments of the present application also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements steps for implementing the various method embodiments described above.
The embodiment of the application also provides a vehicle, which comprises a vehicle-mounted terminal, wherein the vehicle-mounted terminal is used for executing the steps of the method embodiments.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above-described embodiments, and may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of the method embodiments described above when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include at least: any entity or device capable of carrying the computer program code to the in-vehicle terminal, a recording medium, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a U-disk, removable hard disk, magnetic or optical disk, etc. In some jurisdictions, computer readable media may not be electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (10)

1. A method of charging a battery, comprising:
when a charging request is detected, determining the current working condition of the vehicle;
acquiring environment information of an area where the vehicle is located;
selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environment information and the current working condition; the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition;
And charging a storage battery of the vehicle based on the charging parameter.
2. The battery charging method of claim 1, wherein said determining the current operating condition of the vehicle comprises:
acquiring vehicle information of the vehicle;
and determining the current working condition according to the vehicle information.
3. The battery charging method according to claim 2, wherein the vehicle information includes an idle flag bit and a vehicle speed; the idle speed zone bit is used for representing the pointing direction of an idle speed pointer of the vehicle; the current working conditions comprise an idle working condition and a non-idle working condition; the determining the current working condition according to the vehicle information comprises the following steps:
if the idle speed flag bit is a valid bit within a set time period and the vehicle speed is 0 within the set time period, determining that the current working condition is the idle speed working condition; the idle speed flag bit is a valid bit, and the idle speed pointer points to a first area;
if the idle speed flag bit is an invalid bit within the set time period or the vehicle speed is not 0 within the set time period, determining that the current working condition is the non-idle speed working condition; the idle flag bit being an invalid bit indicates that the idle pointer points to other areas than the first area.
4. A battery charging method according to any one of claims 1 to 3, wherein the environmental information includes temperature; the charging parameter includes a charging voltage; and selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environmental information and the current working condition, wherein the target voltage calibration table comprises:
if the temperature is smaller than a first threshold value, selecting a voltage calibration table with recorded charging voltage larger than a second threshold value from the plurality of voltage calibration tables as the target voltage calibration table;
and if the temperature is greater than or equal to the first threshold value, determining the target voltage calibration table according to the current working condition.
5. The battery charging method of claim 4, wherein the current operating conditions include an idle operating condition and a non-idle operating condition; the step of determining the target voltage calibration table according to the current working condition comprises the following steps:
if the current working condition is the idle working condition, selecting a voltage calibration table with the recorded charging voltage smaller than a third threshold value from the plurality of voltage calibration tables as the target voltage calibration table; wherein the third threshold is less than the second threshold;
and if the current working condition is the non-idle working condition, selecting a voltage calibration table with the recorded charging voltage between the second threshold value and the third threshold value from the plurality of voltage calibration tables as the target voltage calibration table.
6. The battery charging method of claim 4, wherein the current operating condition comprises an idle operating condition; the step of determining the target voltage calibration table according to the current working condition comprises the following steps:
if the current working condition is the idle working condition, determining the number of equipment which is required to be powered by a generator of the vehicle at present;
and determining the target voltage calibration table according to the number of the devices.
7. The battery charging method according to claim 6, wherein said determining said target voltage calibration table according to said number of devices comprises:
if the number of the devices is greater than or equal to a fourth threshold value, selecting a voltage calibration table with recorded charging voltage smaller than a fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table; wherein the fifth threshold is less than the second threshold;
and if the number of the devices is smaller than the fourth threshold value, selecting a voltage calibration table with recorded charging voltage between the second threshold value and the fifth threshold value from the plurality of voltage calibration tables as the target voltage calibration table.
8. A battery charging apparatus, comprising:
The first determining unit is used for determining the current working condition of the vehicle when the charging request is detected;
the first acquisition unit is used for acquiring environment information of an area where the vehicle is located;
the first selecting unit is used for selecting a target voltage calibration table from a plurality of pre-stored voltage calibration tables according to the environmental information and the current working condition; the target voltage calibration table records the environment information and the corresponding charging parameters under the current working condition;
and the charging unit is used for charging the storage battery of the vehicle based on the charging parameters.
9. A vehicle-mounted terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the battery charging method according to any one of claims 1 to 7 when executing the computer program.
10. A vehicle comprising the in-vehicle terminal according to claim 9.
CN202311034499.3A 2023-08-16 2023-08-16 Storage battery charging method and device, vehicle-mounted terminal and vehicle Pending CN117067913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311034499.3A CN117067913A (en) 2023-08-16 2023-08-16 Storage battery charging method and device, vehicle-mounted terminal and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311034499.3A CN117067913A (en) 2023-08-16 2023-08-16 Storage battery charging method and device, vehicle-mounted terminal and vehicle

Publications (1)

Publication Number Publication Date
CN117067913A true CN117067913A (en) 2023-11-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN117067913A (en)

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