CN108808815B - Charging control method and device for vehicle and vehicle - Google Patents

Charging control method and device for vehicle and vehicle Download PDF

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Publication number
CN108808815B
CN108808815B CN201810558181.8A CN201810558181A CN108808815B CN 108808815 B CN108808815 B CN 108808815B CN 201810558181 A CN201810558181 A CN 201810558181A CN 108808815 B CN108808815 B CN 108808815B
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vehicle
range extender
power
maximum allowable
target area
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CN108808815A (en
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马东辉
马守明
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Beijing CHJ Automobile Technology Co Ltd
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Beijing CHJ Automobile Technology Co Ltd
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    • 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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
    • 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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1446—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle in response to parameters of a vehicle
    • 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
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02T10/62—Hybrid vehicles
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • 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)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The embodiment of the disclosure provides a charging control method and device for a vehicle and the vehicle, wherein the method comprises the following steps: when the vehicle is in a parking state and the electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value, acquiring position information of the vehicle; determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle; and starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not more than the maximum allowable power. Therefore, the vehicle can be charged in the parking state, the starting of the range extender in the driving process is reduced, the use experience of the vehicle is improved, meanwhile, the maximum allowable power of the range extender at the current position is calculated according to the position information, and the influence on the surrounding environment can be reduced.

Description

Charging control method and device for vehicle and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle charging control method and device and a vehicle.
Background
The extended range electric vehicle is an electric vehicle which can drive a generator to operate through a fuel engine so as to charge a storage battery of the vehicle by utilizing the generator. After the electric quantity of the conventional range-extended electric vehicle is reduced to a certain value, if the electric vehicle is not charged, the engine is frequently started to drive the generator to charge in the driving process, so that the NVH (Noise, Vibration and Harshness) and the power of the vehicle are influenced, certain interference can be brought to the driving of the vehicle, and the range extender is started to charge the vehicle in a parking state, so that the influence can be brought to the surrounding environment.
Disclosure of Invention
In a first aspect, an embodiment of the present disclosure provides a charging control method for a vehicle, applied to an extended range electric vehicle, including:
when the vehicle is in a parking state and the electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value, acquiring position information of the vehicle;
determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle;
and starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not more than the maximum allowable power.
In some embodiments, the determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle comprises:
acquiring the distance between the vehicle and a target area;
determining a maximum allowable noise value of the range extender according to the distance between the vehicle and the target area;
and determining the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender.
In some embodiments, the step of obtaining the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area comprises:
inquiring the current time, and acquiring the maximum allowable noise value of the target area according to the inquired time and the attribute of the target area;
and calculating the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area, the maximum allowable noise value of the target area and the attenuation relation of the noise value with the distance.
In some embodiments, after the obtaining of the position information of the vehicle when the vehicle is in the parking state and the electric quantity of the battery of the vehicle is less than the first preset electric quantity value, the method further includes:
and when the position information of the vehicle fails to be acquired, or the distance between the vehicle and the target area is smaller than a preset distance value, ending the charging control process.
In some embodiments, the step of calculating the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender comprises:
calculating a first charging power of the vehicle, wherein the first charging power is the sum of the maximum continuous charging power of the storage battery, the working power of a vehicle thermal management system and the working power of low-voltage accessories of the vehicle;
calculating second charging power of the vehicle, wherein the second charging power is the working power of the range extender when the working noise of the range extender is the maximum allowable noise value of the range extender;
and taking the smaller of the first charging power and the second charging power as the maximum allowable power of the range extender.
In some embodiments, after the step of activating the range extender to charge the battery of the vehicle, the method further comprises:
when the electric quantity of the storage battery reaches a second preset electric quantity value, the range extender is closed; or
When the vehicle exits the parking state, closing the range extender; or
And when the charging gun is detected to be connected, the range extender is closed.
In a second aspect, an embodiment of the present disclosure provides a charging control device for a vehicle, applied to an extended range electric vehicle, including:
the position acquisition module is used for acquiring the position information of the vehicle when the vehicle is in a parking state and the electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value;
the power determining module is used for determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle;
the starting module is used for starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not larger than the maximum allowable power.
In some embodiments, the power determination module comprises:
the distance acquisition submodule is used for acquiring the distance between the vehicle and the target area;
the noise acquisition submodule is used for determining the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area;
and the power calculation submodule is used for determining the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender.
In some embodiments, the noise acquisition sub-module comprises:
the noise acquisition unit is used for inquiring the current time and acquiring the maximum allowable noise value of the target area according to the inquired time and the attribute of the target area;
and the noise calculation unit is used for calculating the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area, the maximum allowable noise value of the target area and the attenuation relation of the noise value along with the distance.
In some embodiments, the apparatus further comprises:
and the prompting module is used for ending the charging control process when the position information of the vehicle fails to be acquired or the distance between the vehicle and the target area is smaller than a preset distance value.
In some embodiments, the power calculation sub-module comprises:
the first power calculation unit is used for calculating first charging power of the vehicle, and the first charging power is the sum of the maximum continuous charging power of the storage battery, the working power of a vehicle thermal management system and the working power of low-voltage accessories of the vehicle;
the second power calculation unit is used for calculating second charging power of the vehicle, and the second charging power is the working power of the range extender when the working noise of the range extender is the maximum allowable noise value of the range extender;
and the power confirmation unit is used for taking the smaller one of the first charging power and the second charging power as the maximum allowable power of the range extender.
In some embodiments, a shutdown module is further included;
the range extender is used for closing the range extender when the electric quantity of the storage battery reaches a second preset electric quantity value; or
The range extender is turned off when the vehicle exits the parking state; or
And the range extender is closed when the charging gun is detected to be accessed.
In a third aspect, embodiments of the present disclosure provide a vehicle comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of a charge control method of the vehicle.
In a fourth aspect, embodiments of the present disclosure provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the charge control method of the vehicle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a charge control method of a vehicle according to an embodiment of the present disclosure;
fig. 2 is a flowchart of another charge control method of a vehicle according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of a charging control apparatus of a vehicle according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart of a charging control method for a vehicle, which is applied to an extended range electric vehicle, according to an embodiment of the present disclosure, and as shown in fig. 1, the method includes the following steps:
step 101: when the vehicle is in a parking state and the electric quantity of the storage battery of the vehicle is smaller than a first preset electric quantity value, the position information of the vehicle is acquired.
In the embodiment of the present disclosure, the parking state refers to a state where the vehicle is in a parking position or a state where the hand brake is pulled down, and may also refer to a state where the vehicle is in a parking position and the hand brake is pulled down, and may also refer to a state where the vehicle key is turned to OFF, and the like.
In the embodiment of the present disclosure, the charging control process may be started manually by a user or may be set to be started automatically.
In one embodiment, the charging control process is automatically started by the vehicle, for example, a control switch may be integrated on a parking position or a hand brake, when it is detected that the vehicle is switched to a parking state, the electric quantity of the storage battery is detected, and when the electric quantity of the storage battery is smaller than a first preset electric quantity value, the position information of the vehicle is further acquired and the subsequent steps are executed. Obviously, a charging control switch can be also arranged, the charging control switch is manually controlled to be turned on or off by a user, when the charging control switch is in an on state, the current state of the vehicle is automatically detected through a vehicle-mounted computer or a whole vehicle control system, and when the condition that the vehicle is in a parking state and the electric quantity is smaller than a first preset electric quantity value is met, the position information of the vehicle is obtained.
In another embodiment, the charging control process is controlled manually, for example, a control switch may be provided, the control switch is manually activated after the user parks the vehicle at a specified position and switches to the parking state, and when the electric quantity of the storage battery of the vehicle is smaller than the first preset electric quantity value, the position information of the vehicle is obtained and the subsequent steps are executed.
The electric quantity of the storage battery determines the driving range of the vehicle to a great extent, and when the electric quantity of the storage battery is reduced, the driving range of the vehicle is correspondingly reduced. During the running of the vehicle, if the electric quantity of the storage battery is not enough for the running of the vehicle, the range extender may need to be frequently started to charge the storage battery during the running of the vehicle. In order to minimize the above situation, it is conceivable to charge the battery when the vehicle is in a parking state and the electric quantity of the battery is smaller than a first preset electric quantity value. In order to ensure that the vehicle has a relatively sufficient amount of electricity in the next driving phase, the value of the first preset electric quantity value may be flexibly set according to the driving task of the vehicle, for example, the first preset electric quantity value may be 70%, 50%, 60%, 40%, and so on of the rated electric quantity of the storage battery, and the specific value of the first preset electric quantity value is not further limited in this embodiment.
Through setting up this first preset electric quantity value, can avoid the vehicle to frequently start the range extender because the electric quantity is not enough at the in-process of traveling to can reduce noise, vibration etc. because the engine of vehicle starts the production, thereby improve the comfortable degree of vehicle driving in-process, can improve and use experience.
In the embodiment of the present disclosure, the purpose of acquiring the position information of the vehicle is to determine information related to a position, such as a surrounding environment, by a vehicle position, since the surrounding environment may be affected to some extent when the vehicle is started, and interference with the surrounding environment can be reduced by acquiring the position information of the vehicle. In specific implementation, the current position of the vehicle can be acquired through the positioning system, and the surrounding environment of the vehicle, such as environment data such as the distance between the vehicle and a residential area, is further judged by combining a database such as an electronic map.
The current position information may be obtained by an existing positioning system, such as a GPS (Global positioning system), a beidou positioning system, or manually input by a user, for example, the relevant position information, such as a surrounding residential area, a school, an underground parking lot, or the like, may be manually selected or input by the user on a human-computer interface, and the distance between the buildings of the vehicle may be estimated and input by the user, or the distance between the vehicle and the buildings may be measured by providing a distance measuring device on the vehicle.
If the starting condition of the range extender is not met, a prompt message can be sent to the user, the prompt message is used for prompting the user that the vehicle is not switched to the parking gear, the vehicle residual capacity is larger than the first preset electric quantity value and other unsatisfied conditions, the execution of subsequent steps can be stopped, and the subsequent charging process can be adjusted or manually and forcibly started by the user.
Step 102: and determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle.
Because the range extender generates noise and exhaust gas in the working process, considering the interference of the noise to the surrounding environment and the possible harmful gas in the exhausted gas, in order to avoid the interference of the engine noise to the surrounding environment and the possible harm caused by the harmful gas exhausted by the engine, the maximum allowable power of the range extender corresponding to different areas can be preset.
The maximum charging power of the range extender is determined by the performance of the range extender, but the power of the range extender allowed to work in different areas is limited, and in the embodiment of the disclosure, the maximum allowed power of the corresponding range extender at the current vehicle position is determined according to the current vehicle position.
It will be appreciated that the allowable operating conditions of the vehicle may be different at different locations, for example if the vehicle is in an open stereo garage in the open air, and there is no need to take into account air emissions and noise issues, the range extender may be allowed to operate at maximum power; for another example, if the vehicle is close to a residential area, in order to avoid the noise caused by the running of the vehicle from affecting the normal life of the residential area, the working power of the range extender needs to be limited, so as to reduce the noise that may be generated.
Step 103: and starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not more than the maximum allowable power.
And when the maximum allowable power of the range extender at the current vehicle position is determined, starting the range extender to charge the storage battery at the working power which is not more than the maximum allowable power.
It should be understood that the charging speed for charging the storage battery with the maximum allowable power is the fastest, but in practical situations, there may be some deviation in the control of the operating power of the range extender, it may not be ensured that the operating power reaches the maximum allowable power accurately, in order to avoid possible interference, and in order to improve safety, the operating power of the range extender may be reduced appropriately, for example, the range extender is charged with 0.8 times of the maximum allowable power, and the like. The actual working power can be determined according to actual conditions, and is not further limited herein.
Like this, this disclosed embodiment can realize charging for the vehicle under the parking state, has reduced the start-up of the journey ware that increases in-process to can reduce because the engine start-up of vehicle produces noise, vibration etc. thereby improve the comfortable degree in the vehicle driving process, can improve and use experience. Meanwhile, the maximum allowable power of the range extender at the current position is determined according to the position information, so that the influence on the surrounding environment can be reduced.
Referring to fig. 2, fig. 2 is a flowchart of another charging control method for a vehicle, which is applied to an extended range electric vehicle, according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step 201: and when the vehicle is in a parking state and the electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value, acquiring the position information of the vehicle.
In the embodiment of the disclosure, first, when the condition that the vehicle is in the parking state and the electric quantity of the storage battery is smaller than a first preset electric quantity value is met, the position information of the vehicle is acquired.
Step 202: and acquiring the distance between the vehicle and the target area.
Further, according to the acquired position information of the vehicle, the distance between the vehicle and the target area may be acquired, and in the embodiment of the present disclosure, the target area mainly refers to a surrounding building that may be interfered by noise, such as various buildings of a residential area, a study, a hospital, and the like. The distance may be determined on the electronic map from the current position of the vehicle and the position of the target area on the electronic map; the deviation which may exist in the electronic map and the positioning system is considered, and the deviation can be determined by a distance measuring device or manually input.
Optionally, after step 201, the method may further include the steps of:
and when the position information of the vehicle fails to be acquired, or the distance between the vehicle and the target area is smaller than a preset distance value, ending the charging control process.
This step may be specifically executed after step 201, and if the position information of the vehicle is not successfully acquired, the charging control process is ended; the above steps may also be performed after step 202, and if it is detected that the distance between the vehicle and the target area is less than the preset distance value, the charging control process is also ended.
For example, if the vehicle is parked in an underground parking lot or in an indoor garage, exhaust gas generated due to the operation of the engine may be discharged in a timely manner, which may cause a danger; for another example, if the vehicle is too close to a residential area or a school teaching building, the emitted noise may affect normal life or learning, and therefore, it should be ensured that the vehicle is parked at a safe location without affecting the surrounding environment.
In the embodiment of the present disclosure, if the position information is not successfully acquired or is successfully acquired, but the distance between the current position of the vehicle and the target area is too small to avoid the influence on the surrounding environment by means of controlling the power of the range extender, and the like, the charging control process is ended.
After the charging control process is ended, it is preferable to further send a prompt signal to the user to prompt the reason for the contact with the charging control process, so that the user can easily eliminate the adverse effect. Further, after the charging control process is finished, whether the position of the vehicle can be successfully acquired or not can be detected at regular time through the vehicle-mounted computer or the vehicle controller, and if the position of the vehicle can be successfully acquired, the process of the charging control method can be restarted to start the range extender to charge the vehicle.
Step 203: and determining the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area.
Based on the distance between the vehicle and the target area, a maximum allowable noise value for the range extender may further be determined. It will be appreciated that the allowable noise levels will vary for different target areas, for example, the allowable noise volume values will be relatively low for schools and residential areas, and relatively high for factory buildings.
The volume of the noise also attenuates with increasing distance, so that the maximum allowable noise value of the range extender operation changes with the distance from the target area.
Further, optionally, the determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle includes:
in some embodiments, the step of obtaining the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area comprises:
inquiring the current time, and acquiring the maximum allowable noise value of the target area according to the inquired time and the attribute of the target area;
and calculating the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area, the maximum allowable noise value of the target area and the attenuation relation of the noise value with the distance.
In this embodiment, the maximum allowable noise values for different target areas are determined according to time, and then the maximum allowable noise value of the range extender is calculated further by combining the distance between the vehicle and the target area, the maximum allowable noise value of the target area, and the attenuation relationship of the noise value with the distance.
The time query can be realized by querying the time in the vehicle-mounted computer or by querying the internet time through networking, obviously, the time can also be manually input by a user to manually select a time period, and the embodiment is not further limited.
The maximum allowable noise values for different time periods are different for different regions, for example, for schools, the allowable noise during the day of the non-holiday period is small, for example, 40 db, while the allowable noise during the school time and the whole day of the holiday period is relatively large, for example, 60 db; for a residential area, the allowable maximum noise in the daytime is relatively large, for example 55 db from 6 hours to 22 hours, and the allowable maximum noise in the nighttime is relatively small, for example 45 db from 22 hours to the next day 6; obviously, the specific value can be selected according to actual situations, and is not further limited in this embodiment.
The noise versus sound source attenuation can be calculated according to the following empirical formula:
AdiV＝10lg[1/(4πr^2)]；
where AdiV is the attenuation of sound with increasing distance in decibels, and r is the distance from the sound source in meters.
In one embodiment, for example, if the maximum allowable noise of the target area is A1 and the distance between the vehicle and the target area is r, the maximum allowable noise of the range extender is 10lg [1/(4 π r ^2) ] + A1.
Further, the attenuation of sound with environment is different in different environments, for example, if there is an influence of a shielding object or a reflecting object around, the attenuation of noise is also influenced to a certain extent, so the above empirical formula can only roughly estimate the attenuation of noise, and therefore, in order to ensure that the estimation of the noise value is relatively correct, a safety factor, for example, 0.8AdiV is used as the attenuation value of sound with increasing distance. Obviously, the specific value of the safety factor is also selectable and variable, and generally speaking, the safety factor should be less than 1 and is not further limited herein.
The noise versus sound source attenuation relationship can also be determined by consulting a pre-prepared table of noise versus sound source attenuation. Specifically, when the vehicle is in a static state, the range extender generates power at an idle speed, so that noise decibel values corresponding to different working powers of the range extender are measured, and the calibrated values are led into a vehicle-mounted computer or a vehicle controller for query and use.
Step 204: and determining the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender.
When the maximum allowable noise value of the range extender is determined, the maximum allowable power of the range extender can be further determined, the process can be realized by calculation, the working noise of the range extender under different working powers can also be measured, a corresponding relation table of the corresponding power and the noise is made, and the maximum allowable power of the range extender is determined by inquiring the corresponding relation table when in use.
In some embodiments, the step of calculating the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender comprises:
calculating a first charging power of the vehicle, wherein the first charging power is the sum of the maximum continuous charging power of the storage battery, the working power of a vehicle thermal management system and the working power of low-voltage accessories of the vehicle;
calculating second charging power of the vehicle, wherein the second charging power is the working power of the range extender when the working noise of the range extender is the maximum allowable noise value of the range extender;
and taking the smaller of the first charging power and the second charging power as the maximum allowable power of the range extender.
Further, in order to ensure safety, a maximum charging power of the vehicle is also introduced. For the storage battery, the remaining capacity may impose a certain limit on the charging current, generally, the smaller the remaining capacity of the storage battery is, the larger the allowable charging current is, obviously, other types of rechargeable batteries may exist, and will not be further described herein.
When the Battery Management System is used specifically, a Battery Management System (BMS) acquires the residual electric quantity of the storage Battery, and determines the maximum continuous charging current of the storage Battery according to the residual electric quantity. Since the total voltage of the battery is fixed, the maximum continuous charging power of the battery can be determined by multiplying the total voltage by the maximum continuous charging current. Generally, an electric vehicle needs to include at least a vehicle thermal management system and low-voltage accessories, and therefore, in the embodiment of the present disclosure, the sum of the maximum continuous charging power of the storage battery, the operating power of the vehicle thermal management system, and the operating power of the low-voltage accessories of the vehicle is used as the first charging power of the vehicle. Obviously, if other systems or modules which operate in the parking state and consume electric energy are also included in the electric vehicle, the operating power of the electric vehicle can be added into the first charging power.
And when the determined working noise of the range extender is the maximum allowable noise value of the range extender, the working power of the range extender is the second charging power of the vehicle.
And taking the smaller one of the first charging power and the second charging power as the maximum allowable power of the range extender. The noise of the range extender can be ensured not to interfere the surrounding environment, the charging current can be ensured not to be overlarge, and the risk possibly brought by overlarge charging current can be reduced.
And step 205, starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not greater than the maximum allowable power.
After the maximum allowable power of the range extender is determined, the range extender is started with the working power which is not more than the maximum allowable power, so that the noise requirement of the surrounding environment is met, the interference to the surrounding environment is avoided, and the influence on the normal use of the vehicle is avoided.
It should be understood that the larger the working power of the range extender, the faster the charging speed thereof, so the actual working power of the range extender should be equal to or as close as possible to the maximum allowable power of the range extender, thereby increasing the charging speed on the premise of ensuring that the ambient environment is not disturbed.
In some embodiments, after the step of activating the range extender to charge the battery of the vehicle, the method may further comprise:
when the electric quantity of the storage battery reaches a second preset electric quantity value, the range extender is closed; or
When the vehicle exits the parking state, closing the range extender; or
And when the charging gun is detected to be connected, the range extender is closed.
In the embodiment of the present disclosure, the second preset electric quantity value may be set according to a situation, for example, may be set to 90% or 100%, and the specific value is not further limited in this embodiment. Obviously, the electric quantity of the storage battery reaches the second electric quantity value after being charged from the first preset electric quantity value, so the second electric quantity value is necessarily larger than the first preset electric quantity value. When the electric quantity of the storage battery meets the requirement, the range extender can be closed.
When the vehicle exits the parking state, for example, the driver inserts the key and rotates to the position of ACC or ON, indicating that the user needs to use the vehicle, it is obvious that there may be some difference in the specific operation manner for different vehicles, for example, for a vehicle started by one key, the start key may be pressed, etc. At this time, the range extender is turned off. If the range extender is needed to be further used in the driving process, the range extender can be selected and controlled according to the requirements of the user, and the embodiment is not further limited.
When the charging gun is detected to be connected, obviously, the storage battery can be supplemented with electric quantity through an external power supply, and at the moment, in order to save fuel, the range extender is not needed to be used for charging the storage battery.
Obviously, each optional step is not necessary, and the method can also be applied to the embodiment of the charging control method for the vehicle shown in fig. 1, and can also realize charging of the vehicle in the parking state, reduce the starting of the range extender in the driving process, improve the use experience of the vehicle, and simultaneously, reduce the influence on the surrounding environment by calculating the maximum allowable power of the range extender at the current position according to the position information.
Referring to fig. 3, fig. 3 is a structural diagram of a charging control device 300 for a vehicle according to an embodiment of the present invention, the charging control device 300 is disposed in an extended range electric vehicle, and as shown in fig. 3, the charging control device 300 for a vehicle includes:
the position obtaining module 301 is configured to obtain position information of the vehicle when the vehicle is in a parking state and an electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value;
a power determining module 302, configured to determine, according to the position information of the vehicle, a maximum allowable power of the range extender at a current vehicle position;
a starting module 303, configured to start the range extender to charge a battery of the vehicle, where an operating power of the range extender is not greater than the maximum allowable power.
In some embodiments, the power determination module 302 comprises:
the distance acquisition submodule is used for acquiring the distance between the vehicle and the target area;
the noise acquisition submodule is used for determining the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area;
and the power calculation submodule is used for determining the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender.
In some embodiments, the noise acquisition sub-module comprises:
the noise acquisition unit is used for inquiring the current time and acquiring the maximum allowable noise value of the target area according to the inquired time and the attribute of the target area;
and the noise calculation unit is used for calculating the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area, the maximum allowable noise value of the target area and the attenuation relation of the noise value along with the distance.
In some embodiments, the apparatus further comprises:
and the prompting module is used for ending the charging control process when the position information of the vehicle fails to be acquired or the distance between the vehicle and the target area is smaller than a preset distance value.
In some embodiments, the power calculation sub-module comprises:
the first power calculation unit is used for calculating first charging power of the vehicle, and the first charging power is the sum of the maximum continuous charging power of the storage battery, the working power of a vehicle thermal management system and the working power of low-voltage accessories of the vehicle;
the second power calculation unit is used for calculating second charging power of the vehicle, and the second charging power is the working power of the range extender when the working noise of the range extender is the maximum allowable noise value of the range extender;
and the power confirmation unit is used for taking the smaller one of the first charging power and the second charging power as the maximum allowable power of the range extender.
In some embodiments, a shutdown module is further included;
the range extender is used for closing the range extender when the electric quantity of the storage battery reaches a second preset electric quantity value; or
The range extender is turned off when the vehicle exits the parking state; or
And the range extender is closed when the charging gun is detected to be accessed.
The mobile terminal provided by the embodiment of the invention can realize each process realized by the mobile terminal in the method embodiments shown in fig. 1 to fig. 2, can realize charging of the vehicle in a parking state, reduces the starting of the range extender in the driving process, improves the use experience of the vehicle, and simultaneously can reduce the influence on the surrounding environment by calculating the maximum allowable power of the range extender at the current position according to the position information.
Preferably, an embodiment of the present invention further provides a mobile terminal, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the above-mentioned vehicle charging control method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the embodiment of the charging control method for a vehicle, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A charging control method of a vehicle is applied to an extended range electric vehicle, and is characterized by comprising the following steps:
when the vehicle is in a parking state and the electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value, acquiring position information of the vehicle;
determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle;
starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not greater than the maximum allowable power, and determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle comprises the following steps:
acquiring the distance between the vehicle and a target area;
determining a maximum allowable noise value of the range extender according to the distance between the vehicle and the target area;
and determining the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender.
2. The method of claim 1, wherein the step of obtaining a maximum allowable noise value for the range extender based on the distance between the vehicle and the target area comprises:
inquiring the current time, and acquiring the maximum allowable noise value of the target area according to the inquired time and the attribute of the target area;
and calculating the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area, the maximum allowable noise value of the target area and the attenuation relation of the noise value with the distance.
3. The method of claim 1, wherein after acquiring the position information of the vehicle when the vehicle is in the parking state and the charge amount of the battery of the vehicle is less than a first preset charge amount value, the method further comprises:
and when the position information of the vehicle fails to be acquired, or the distance between the vehicle and the target area is smaller than a preset distance value, ending the charging control process.
4. The method of claim 1 or 2, wherein the step of calculating the maximum allowed power of the range extender from the maximum allowed noise value of the range extender comprises:
calculating a first charging power of the vehicle, wherein the first charging power is the sum of the maximum continuous charging power of the storage battery, the working power of a vehicle thermal management system and the working power of low-voltage accessories of the vehicle;
calculating second charging power of the vehicle, wherein the second charging power is the working power of the range extender when the working noise of the range extender is the maximum allowable noise value of the range extender;
and taking the smaller of the first charging power and the second charging power as the maximum allowable power of the range extender.
5. The method of any of claims 1-3, wherein after the step of activating the range extender to charge a battery of the vehicle, the method further comprises:
when the electric quantity of the storage battery reaches a second preset electric quantity value, the range extender is closed; or
When the vehicle exits the parking state, closing the range extender; or
And when the charging gun is detected to be connected, the range extender is closed.
6. A charging control device of a vehicle is applied to an extended range electric vehicle, and is characterized by comprising:
the position acquisition module is used for acquiring the position information of the vehicle when the vehicle is in a parking state and the electric quantity of a storage battery of the vehicle is smaller than a first preset electric quantity value;
the power determining module is used for determining the maximum allowable power of the range extender at the current vehicle position according to the position information of the vehicle;
the starting module is used for starting the range extender to charge a storage battery of the vehicle, wherein the working power of the range extender is not more than the maximum allowable power; wherein the power determination module comprises:
the distance acquisition submodule is used for acquiring the distance between the vehicle and the target area;
the noise acquisition submodule is used for determining the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area;
and the power calculation submodule is used for determining the maximum allowable power of the range extender according to the maximum allowable noise value of the range extender.
7. The apparatus of claim 6, wherein the noise acquisition sub-module comprises:
the noise acquisition unit is used for inquiring the current time and acquiring the maximum allowable noise value of the target area according to the inquired time and the attribute of the target area;
and the noise calculation unit is used for calculating the maximum allowable noise value of the range extender according to the distance between the vehicle and the target area, the maximum allowable noise value of the target area and the attenuation relation of the noise value along with the distance.
8. The apparatus of claim 6, wherein the apparatus further comprises:
and the prompting module is used for ending the charging control process when the position information of the vehicle fails to be acquired or the distance between the vehicle and the target area is smaller than a preset distance value.
9. The apparatus of claim 6 or 7, wherein the power calculation sub-module comprises:
the first power calculation unit is used for calculating first charging power of the vehicle, and the first charging power is the sum of the maximum continuous charging power of the storage battery, the working power of a vehicle thermal management system and the working power of low-voltage accessories of the vehicle;
the second power calculation unit is used for calculating second charging power of the vehicle, and the second charging power is the working power of the range extender when the working noise of the range extender is the maximum allowable noise value of the range extender;
and the power confirmation unit is used for taking the smaller one of the first charging power and the second charging power as the maximum allowable power of the range extender.
10. The apparatus of any one of claims 6 to 8, further comprising a shutdown module;
the range extender is used for closing the range extender when the electric quantity of the storage battery reaches a second preset electric quantity value; or
The range extender is turned off when the vehicle exits the parking state; or
And the range extender is closed when the charging gun is detected to be accessed.
11. A vehicle, characterized by comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the charge control method of the vehicle according to any one of claims 1 to 5.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the charge control method of the vehicle according to any one of claims 1 to 5.
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