CN114552706A - Intelligent charging system and method for vehicle storage battery and vehicle - Google Patents
Intelligent charging system and method for vehicle storage battery and vehicle Download PDFInfo
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- CN114552706A CN114552706A CN202210133443.2A CN202210133443A CN114552706A CN 114552706 A CN114552706 A CN 114552706A CN 202210133443 A CN202210133443 A CN 202210133443A CN 114552706 A CN114552706 A CN 114552706A
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00036—Charger exchanging data with battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an intelligent charging system and a charging method of a vehicle storage battery and a vehicle, wherein the charging system comprises the storage battery, a storage battery sensor is used for detecting the current residual electric quantity of the storage battery and sending a charging awakening request protocol, and a vehicle body domain controller is used for receiving the charging awakening request protocol and transmitting the charging awakening request protocol to a vehicle controller; the vehicle control unit sends a self-checking request protocol to the power battery system or sends a request protocol for starting an engine to the intelligent terminal of the Internet of vehicles; the intelligent terminal of the Internet of vehicles further transmits a request protocol for starting the engine to the user side; the power battery system is used for charging the storage battery after the voltage of the power battery system is reduced by the voltage converter after the self-check is passed; the engine is used for charging the storage battery through the generator when receiving the charging control signal. This scheme still can charge the battery under the lower condition of the residual capacity of power battery itself, and then makes the battery have more electric quantity all the time and guarantee that the vehicle normally uses.
Description
Technical Field
The invention relates to the technical field of storage battery charging, in particular to an intelligent charging system and method for a vehicle storage battery and a vehicle.
Background
With the development of automobile technology, more and more controllers are mounted on the whole automobile, and the traditional power system management strategy cannot meet the functional requirements of the whole automobile. If the automobile is not used for a long time, the storage battery may be lack of power due to long-time power consumption, and the automobile cannot be normally used.
The invention patent with the application number of CN201910333261.8 discloses a storage battery charging method, a control device and an electric automobile, wherein the method monitors the current state of health (SOH) and the current state of charge (SOC) of a storage battery when the electric automobile is in a static working condition; if the characteristic parameter value of the current SOH is larger than or equal to a first preset parameter value and smaller than a second preset parameter value, charging the storage battery when the current SOC is smaller than or equal to a first preset residual electric quantity value; if the characterization parameter value of the current SOH is larger than or equal to the second preset parameter value, charging the storage battery when the current SOC is smaller than or equal to a second preset residual electric quantity value; wherein the second preset residual electric quantity value is different from the first preset residual electric quantity value. By the scheme, the problems that when the health state of the storage battery is poor, the set threshold value of charging end cannot be reached for a long time and the whole vehicle consumes power for a long time are solved. However, the above solution still has the following problems: when the remaining capacity SOC of the power battery device itself that charges the storage battery is low, the storage battery cannot be charged, and this situation also causes a problem that the vehicle cannot be used normally due to a shortage of the storage battery.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problems to be solved by the invention are as follows: how to provide a under the lower circumstances of the residual capacity of power battery itself, still can charge the battery, and then make the battery have more electric quantity all the time and guarantee vehicle normal use's intelligent charging system and charging method of vehicle battery.
In order to solve the technical problems, the invention adopts the following technical scheme:
an intelligent charging system for a vehicle battery, comprising:
a storage battery;
the storage battery sensor is used for detecting the current residual electric quantity of the storage battery and sending a charging awakening request protocol to the vehicle body area controller when the current residual electric quantity of the storage battery is smaller than the set residual electric quantity;
the vehicle body area controller is in communication connection with the storage battery sensor and is used for receiving a charging awakening request protocol from the storage battery sensor and further transmitting the charging awakening request protocol to the vehicle controller;
the vehicle control unit is in communication connection with the vehicle body domain controller and is used for receiving a charging awakening request protocol from the vehicle body domain controller and sending a self-checking request protocol to the power battery system or sending a request protocol for starting an engine to the vehicle networking intelligent terminal;
the intelligent terminal of the vehicle networking is in communication connection with the vehicle control unit and is used for receiving a request protocol for starting the engine from the vehicle control unit and further transmitting the request protocol for starting the engine to a user side;
the power battery system is in communication connection with the vehicle control unit and is used for receiving a self-checking request protocol from the vehicle control unit and charging the storage battery after the self-checking is passed and the voltage is reduced by the voltage converter;
the engine is in communication connection with the vehicle control unit and used for receiving a charging control signal from the vehicle control unit when the user side agrees to a request protocol for starting the engine and charging the storage battery through the generator when receiving the charging control signal.
The working principle of the invention is as follows: when the intelligent charging system is used, the storage battery sensor detects the current residual electric quantity of the storage battery according to the preset frequency, and when the storage battery sensor detects that the current residual electric quantity of the large-plate storage battery is smaller than the set residual electric quantity, the storage battery sensor completes a charging awakening request protocol and sends the charging awakening request protocol to a vehicle body domain controller; the vehicle speed domain controller receives a charging awakening request protocol from a storage battery sensor and further transmits the charging awakening request protocol to the vehicle controller; after receiving the charging awakening request protocol, sending a self-checking request protocol to the power battery system, receiving the self-checking request protocol from the vehicle controller by the power battery system and carrying out self-checking, when the power battery system has more residual electric quantity and passes the self-checking, the power battery system charges the storage battery after reducing the voltage by the voltage converter, when the power battery system has less residual electric quantity and the self-checking fails, the vehicle control unit sends a request protocol for starting the engine to the vehicle networking intelligent terminal, the vehicle networking intelligent terminal receives the request protocol for starting the engine from the vehicle control unit and further transmits the request protocol for starting the engine to a user side, when the user side agrees to the request protocol for starting the engine, the vehicle control unit sends a charging control signal to the engine, and the engine receives the charging control signal and charges the storage battery through the generator.
In summary, when the residual electric quantity of the power battery system is large, the power battery system directly charges the storage battery after voltage reduction through the voltage converter, and when the residual electric quantity of the power battery system is small, the engine can drive the generator to operate so as to charge the storage battery, so that the storage battery can be charged even when the residual electric quantity of the power battery system is small, and the storage battery always has more electric quantity to ensure normal use of the vehicle.
When the self-check of the power battery system is failed, the vehicle control unit sends a request protocol for starting the engine to the intelligent terminal of the Internet of vehicles, the request protocol for starting the engine by the intelligent terminal of the Internet of vehicles is further sent to the user side, and when the user side agrees to the request protocol for starting the engine, the engine charges the battery through the generator.
Preferably, the method comprises the following steps:
step 1) the storage battery sensor detects the current residual capacity of the storage battery according to a preset frequency, and when the current residual capacity of the storage battery is smaller than a set residual capacity, step 2) is executed;
step 2) the storage battery sensor completes a charging awakening request protocol and sends the charging awakening request protocol to the vehicle body domain controller;
step 3) the vehicle speed domain controller receives a charging awakening request protocol from the storage battery sensor and further transmits the charging awakening request protocol to the vehicle controller;
step 4) the vehicle control unit sends a self-checking request protocol to the power battery system, the power battery system receives the self-checking request protocol from the vehicle control unit and performs self-checking, when the power battery system passes the self-checking, the step 5) is executed, and when the power battery system fails the self-checking, the step 6) is executed;
step 5) charging the storage battery after the voltage of the power battery system is reduced by the voltage converter, and executing step 8) when first preset charging time is reached;
step 6) the vehicle control unit sends a request protocol for starting the engine to the vehicle networking intelligent terminal, the vehicle networking intelligent terminal receives the request protocol for starting the engine from the vehicle control unit and further transmits the request protocol for starting the engine to the user side, when the user side agrees with the request protocol for starting the engine, step 7) is executed, and when the user side disagrees with the request protocol for starting the engine, step 8) is executed;
step 7) the vehicle control unit sends a charging control signal to the engine, the engine receives the charging control signal and charges the storage battery through the generator, and step 8) is executed when a second preset charging time is reached;
and 8) finishing charging.
Preferably, in step 1), the battery sensor detects the current remaining capacity of the battery at a frequency of once every 4 hours.
Preferably, in step 1), when the current remaining capacity of the storage battery is less than 50% of the charging threshold, step 2) is executed.
Preferably, in the step 4), the self-test method of the power battery system comprises the following steps: comparing the current residual electric quantity of the power battery in the power battery system with a preset threshold value of the residual electric quantity allowed to be charged, and when the current residual electric quantity of the power battery in the power battery system is larger than the preset threshold value of the residual electric quantity allowed to be charged, the power battery system passes the self-checking; and when the current residual capacity of the power battery in the power battery system is less than or equal to a preset threshold value of the allowable charging residual capacity, the power battery system is self-checked and failed.
Preferably, in step 4), the preset threshold value of the allowable charging remaining capacity is 20%.
Preferably, in step 5), when the power battery system reduces the voltage through the voltage converter and charges the storage battery, the vehicle controller times the charging time, and when the charging time reaches 30min, step 8) is executed.
Preferably, in step 7), the vehicle control unit counts the charging time when the generator charges the storage battery, and executes step 8) when the charging time reaches 15 min.
A vehicle adopts the intelligent charging method of the vehicle storage battery.
Compared with the prior art, the invention has the following advantages:
1. the intelligent charging method of the storage battery selects the optimal charging mode to charge the storage battery based on the current residual electric quantity state of the storage battery and in combination with the current residual electric quantity state of the power battery system.
2. According to the invention, different charging threshold values and charging time can be flexibly configured based on the SOC state of the current storage battery, and when the SOC of the storage battery is smaller than the set residual electric quantity, the storage battery sensor wakes up each control unit to charge the storage battery; after charging is completed, each control unit stops working and controls the whole vehicle to continuously enter a dormant state.
3. The invention solves the problem that the storage battery cannot be charged when the SOC of the power battery system is low, and the storage battery is charged by using the engine when the SOC of the power battery system is low, so that the storage battery has longer storage time under a static state of a vehicle.
Drawings
FIG. 1 is a system block diagram of an intelligent charging system for a vehicle battery in accordance with the present invention;
fig. 2 is a flow chart of a method for intelligent charging of a vehicle battery in accordance with the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments.
The intelligent charging method is carried out when the vehicle is in a static mode, wherein the vehicle is in the static mode, namely the vehicle is in an OFF gear or the vehicle is in a dormant state.
As shown in fig. 1, the intelligent charging system for a vehicle battery according to the present invention includes:
a storage battery;
the storage battery sensor is used for detecting the current residual electric quantity SOC of the storage battery and sending a charging awakening request protocol to the vehicle body area controller when the current residual electric quantity SOC of the storage battery is smaller than the set residual electric quantity;
the vehicle body area controller is in communication connection with the storage battery sensor and is used for receiving a charging awakening request protocol from the storage battery sensor and further transmitting the charging awakening request protocol to the vehicle controller;
the vehicle control unit is in communication connection with the vehicle body area controller and is used for receiving a charging awakening request protocol from the vehicle body area controller and sending a self-checking request protocol to the power battery system or sending a request protocol for starting an engine to the vehicle networking intelligent terminal;
the intelligent terminal of the Internet of vehicles is in communication connection with the vehicle control unit and is used for receiving a request protocol for starting the engine from the vehicle control unit and further transmitting the request protocol for starting the engine to a user side, wherein the user side can be a mobile phone APP or a computer;
the power battery system is in communication connection with the vehicle controller and is used for receiving a self-checking request protocol from the vehicle controller and charging the storage battery after the self-checking is passed and the voltage is reduced by the voltage converter, and the power battery system comprises a power battery and a battery management system;
and the engine is in communication connection with the vehicle controller and is used for receiving a charging control signal from the vehicle controller when the user side agrees to the request protocol for starting the engine and charging the storage battery through the generator when receiving the charging control signal.
The working principle of the invention is as follows: when the intelligent charging system is used, the storage battery sensor detects the current residual electric quantity SOC of the storage battery according to the preset frequency, and when the storage battery sensor detects that the current residual electric quantity SOC of the large-plate storage battery is smaller than the set residual electric quantity, the storage battery sensor completes a charging awakening request protocol and sends the charging awakening request protocol to a vehicle body domain controller; the vehicle speed domain controller receives a charging awakening request protocol from a storage battery sensor and further transmits the charging awakening request protocol to the vehicle controller; after receiving the charging awakening request protocol, sending a self-checking request protocol to the power battery system, receiving the self-checking request protocol from the vehicle control unit by the power battery system and carrying out self-checking, when the power battery system has more residual electric quantity and passes the self-checking, the power battery system charges the storage battery after reducing the voltage by the voltage converter, when the power battery system has less residual electric quantity and the self-checking fails, the vehicle control unit sends a request protocol for starting the engine to the vehicle networking intelligent terminal, the vehicle networking intelligent terminal receives the request protocol for starting the engine from the vehicle control unit and further transmits the request protocol for starting the engine to a user side, when the user side agrees to the request protocol for starting the engine, the vehicle control unit sends a charging control signal to the engine, and the engine receives the charging control signal and charges the storage battery through the generator.
In summary, when the residual electric quantity of the power battery system is large, the power battery system directly charges the storage battery after voltage reduction through the voltage converter, and when the residual electric quantity of the power battery system is small, the engine can drive the generator to operate so as to charge the storage battery, so that the storage battery can be charged even when the residual electric quantity of the power battery system is small, and the storage battery always has more electric quantity to ensure normal use of the vehicle.
When the self-check of the power battery system is failed, the vehicle controller sends a request protocol for starting the engine to the intelligent terminal of the vehicle network, the request protocol for starting the engine by the intelligent terminal of the vehicle network is further sent to a user side, and when the user side agrees to the request protocol for starting the engine, the engine charges the storage battery through the generator.
As shown in fig. 2, in the present embodiment, the intelligent charging method for a vehicle battery includes the steps of:
step 1) detecting the current residual capacity SOC of the storage battery by a storage battery sensor according to a preset frequency, and executing step 2) when the current residual capacity SOC of the storage battery is smaller than a set residual capacity, wherein the preset frequency value and the set residual capacity value in the step are allowed to be calibrated through equipment so as to adapt to more complex environments or working conditions;
step 2), the storage battery sensor completes a charging awakening request protocol and sends the charging awakening request protocol to the vehicle body domain controller;
step 3) the vehicle speed domain controller receives a charging awakening request protocol from the storage battery sensor and further transmits the charging awakening request protocol to the vehicle controller;
step 4), the vehicle control unit sends a self-checking request protocol to the power battery system, the power battery system receives the self-checking request protocol from the vehicle control unit and performs self-checking, when the power battery system passes the self-checking, the step 5) is executed, and when the power battery system fails the self-checking, the step 6) is executed;
step 5) charging the storage battery after the power battery system is subjected to voltage reduction through the voltage converter, and executing step 8 when the first preset charging time is reached;
step 6) the vehicle control unit sends a request protocol for starting the engine to the vehicle networking intelligent terminal, the vehicle networking intelligent terminal receives the request protocol for starting the engine from the vehicle control unit and further transmits the request protocol for starting the engine to the user side, the user side selects whether to start the engine to charge the storage battery, when the user side agrees with the request protocol for starting the engine, step 7) is executed, and when the user side disagrees with the request protocol for starting the engine, step 8) is executed;
step 7), the vehicle control unit sends a charging control signal to the engine, the engine receives the charging control signal and charges the storage battery through the generator, and step 8) is executed when the second preset charging time is reached;
and 8) finishing charging.
In the present embodiment, in step 1), the battery sensor detects the current remaining charge SOC of the battery at a frequency of once every 4 hours.
In this embodiment, in step 1), when the current remaining capacity SOC of the battery is less than 50% of the charging threshold, step 2) is executed, if it is detected that the current remaining capacity SOC of the battery is greater than 50%, the battery sensor continues to maintain the silent state, does not send a signal to the body area controller, and waits for the next detection operation.
In this embodiment, in step 4), the self-test method of the power battery system includes: comparing the current residual capacity SOC of the power battery in the power battery system with a preset threshold value of the residual capacity allowed to be charged, and when the current residual capacity SOC of the power battery in the power battery system is larger than the preset threshold value of the residual capacity allowed to be charged, the power battery system passes self-checking; and when the current residual capacity SOC of the power battery in the power battery system is less than or equal to a preset threshold value of the allowable charging residual capacity, the power battery system is self-checked and failed.
In this embodiment, in step 4), the preset threshold value of the allowable charging remaining capacity is 20%, and the threshold value should be allowed to be calibrated by the device to adapt to more complex environments or working conditions.
In this embodiment, in step 5), when the power battery system is stepped down by the voltage converter and then the battery is charged, the vehicle controller times the charging time, and when the charging time reaches 30min, the vehicle controller controls the power battery system and the voltage converter to stop working, and step 8) is executed.
In this embodiment, in step 7), when the generator charges the storage battery, the vehicle controller times the charging time, and when the charging time reaches 15min, the vehicle controller controls the engine and the generator to stop working, and executes step 8), and the storage battery charging process is finished, where the charging time should be allowed to be calibrated by the device to adapt to a more complex environment or working condition.
The embodiment also provides a vehicle, and the intelligent charging method of the vehicle storage battery is adopted.
Compared with the prior art, the intelligent charging method of the storage battery selects the optimal charging mode to charge the storage battery based on the current residual electric quantity SOC state of the storage battery and in combination with the current residual electric quantity SOC state of the power battery system. According to the invention, different charging threshold values and charging time can be flexibly configured based on the SOC state of the current storage battery, and when the SOC of the storage battery is smaller than the set residual electric quantity, the storage battery sensor wakes up each control unit to charge the storage battery; after charging is completed, each control unit stops working and controls the whole vehicle to continuously enter a dormant state. The invention solves the problem that the storage battery cannot be charged when the SOC of the power battery system is low, and the storage battery is charged by using the engine when the SOC of the power battery system is low, so that the storage battery has longer storage time under the static state of the vehicle.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (10)
1. An intelligent charging system for a vehicle battery, comprising:
a storage battery;
the storage battery sensor is used for detecting the current residual electric quantity of the storage battery and sending a charging awakening request protocol to the vehicle body area controller when the current residual electric quantity of the storage battery is smaller than the set residual electric quantity;
the vehicle body area controller is in communication connection with the storage battery sensor and is used for receiving a charging awakening request protocol from the storage battery sensor and further transmitting the charging awakening request protocol to the vehicle controller;
the vehicle control unit is in communication connection with the vehicle body domain controller and is used for receiving a charging awakening request protocol from the vehicle body domain controller and sending a self-checking request protocol to the power battery system or sending a request protocol for starting an engine to the vehicle networking intelligent terminal;
the intelligent terminal of the vehicle networking is in communication connection with the vehicle control unit and is used for receiving a request protocol for starting the engine from the vehicle control unit and further transmitting the request protocol for starting the engine to a user side;
the power battery system is in communication connection with the vehicle control unit and is used for receiving a self-checking request protocol from the vehicle control unit and charging the storage battery after the self-checking is passed and the voltage is reduced by the voltage converter;
the engine is in communication connection with the vehicle control unit and used for receiving a charging control signal from the vehicle control unit when the user side agrees to a request protocol for starting the engine and charging the storage battery through the generator when receiving the charging control signal.
2. An intelligent charging method for a vehicle storage battery, characterized in that the intelligent charging system for a vehicle storage battery, as claimed in claim 1, is adopted, when the self-check of the power battery system is failed, the vehicle control unit sends a request protocol for starting the engine to the intelligent terminal of the vehicle networking, the request protocol for starting the engine by the intelligent terminal of the vehicle networking is further sent to a user terminal, and when the user terminal agrees to the request protocol for starting the engine, the engine charges the storage battery through the generator.
3. The intelligent charging method for a vehicle storage battery according to claim 2, characterized by comprising the steps of:
step 1) the storage battery sensor detects the current residual capacity of the storage battery according to a preset frequency, and when the current residual capacity of the storage battery is smaller than a set residual capacity, step 2) is executed;
step 2) the storage battery sensor completes a charging awakening request protocol and sends the charging awakening request protocol to the vehicle body domain controller;
step 3) the vehicle speed domain controller receives a charging awakening request protocol from the storage battery sensor and further transmits the charging awakening request protocol to the vehicle controller;
step 4) the vehicle control unit sends a self-checking request protocol to the power battery system, the power battery system receives the self-checking request protocol from the vehicle control unit and performs self-checking, when the power battery system passes the self-checking, the step 5) is executed, and when the power battery system fails the self-checking, the step 6) is executed;
step 5) charging the storage battery after the power battery system is subjected to voltage reduction through the voltage converter, and executing step 8 when first preset charging time is reached;
step 6) the vehicle control unit sends a request protocol for starting the engine to the vehicle networking intelligent terminal, the vehicle networking intelligent terminal receives the request protocol for starting the engine from the vehicle control unit and further transmits the request protocol for starting the engine to a user side, when the user side agrees to the request protocol for starting the engine, step 7) is executed, and when the user side disagrees to the request protocol for starting the engine, step 8) is executed;
step 7) the vehicle control unit sends a charging control signal to the engine, the engine receives the charging control signal and charges the storage battery through the generator, and step 8) is executed when a second preset charging time is reached;
and 8) finishing charging.
4. The intelligent charging method for a vehicle storage battery according to claim 3, wherein in step 1), the storage battery sensor detects the current remaining capacity of the storage battery at a frequency of once every 4 hours.
5. The intelligent charging method for a vehicle storage battery according to claim 3, wherein in step 1), when the current remaining capacity of the storage battery is less than 50% of the charging threshold, step 2) is performed.
6. The intelligent charging method for a vehicle battery according to claim 3, wherein in step 4), the self-test method for the power battery system comprises: comparing the current residual electric quantity of the power battery in the power battery system with a preset threshold value of the residual electric quantity allowed to be charged, and when the current residual electric quantity of the power battery in the power battery system is larger than the preset threshold value of the residual electric quantity allowed to be charged, the power battery system passes the self-checking; and when the current residual capacity of the power battery in the power battery system is less than or equal to a preset threshold value of the allowable charging residual capacity, the power battery system is self-checked and failed.
7. The intelligent charging method for a vehicle battery according to claim 6, wherein the preset threshold value of the allowable charging remaining capacity in step 4) is 20%.
8. The intelligent charging method for the vehicle storage battery according to claim 3, wherein in the step 5), when the power battery system is used for charging the storage battery after being subjected to voltage reduction through the voltage converter, the vehicle control unit counts the charging time, and when the charging time reaches 30min, the step 8) is executed.
9. The intelligent charging method for the vehicle storage battery according to claim 3, wherein in step 7), the vehicle control unit counts the charging time when the generator charges the storage battery, and executes step 8) when the charging time reaches 15 min.
10. A vehicle characterized by employing the intelligent charging method of a vehicle storage battery according to any one of claims 3 to 9.
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| CN202210133443.2A CN114552706A (en) | 2022-02-14 | 2022-02-14 | Intelligent charging system and method for vehicle storage battery and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230530A (en) * | 2022-07-27 | 2022-10-25 | 重庆长安汽车股份有限公司 | Storage battery power supplementing method and system and automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230530A (en) * | 2022-07-27 | 2022-10-25 | 重庆长安汽车股份有限公司 | Storage battery power supplementing method and system and automobile |
| CN115230530B (en) * | 2022-07-27 | 2024-05-17 | 重庆长安汽车股份有限公司 | Storage battery power supplementing method and system and automobile |
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