CN115107571A - Battery management system, replacement system, and battery replacement determination system for vehicle-mounted battery - Google Patents

Battery management system, replacement system, and battery replacement determination system for vehicle-mounted battery Download PDF

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Publication number
CN115107571A
CN115107571A CN202210744751.9A CN202210744751A CN115107571A CN 115107571 A CN115107571 A CN 115107571A CN 202210744751 A CN202210744751 A CN 202210744751A CN 115107571 A CN115107571 A CN 115107571A
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Prior art keywords
battery
vehicle
replacement
parameter
management information
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CN202210744751.9A
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Chinese (zh)
Inventor
田中邦穂
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Iat Co ltd
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Iat Co ltd
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Priority to CN202210744751.9A priority Critical patent/CN115107571A/en
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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
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • 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
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/44—Control modes by parameter estimation

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

The invention provides a battery management system, a replacement system and a battery replacement determination system for a vehicle-mounted battery. The battery management system of the vehicle-mounted battery comprises: the battery information acquisition module is used for acquiring battery management information of the vehicle-mounted battery, and the battery management information is used for determining whether the vehicle-mounted battery needs to be replaced; and the vehicle-mounted communication module is used for sending the battery management information to a replacement system of the vehicle-mounted battery. The battery management system, the replacement system and the battery replacement determination system for the vehicle-mounted battery can more accurately determine whether the vehicle-mounted battery needs to be replaced.

Description

Battery management system, replacement system, and battery replacement determination system for vehicle-mounted battery
Technical Field
The present invention relates to the field of battery management technologies, and in particular, to a battery management system, a replacement system, and a battery replacement determination system for a vehicle-mounted battery.
Background
With the popularization of electric vehicles, the use of vehicle-mounted batteries is also becoming more common. The longer the in-vehicle battery is used, the more likely it is that the in-vehicle battery is abnormal, and at this time, the in-vehicle battery needs to be replaced. However, the related art cannot accurately determine whether the vehicle-mounted battery needs to be replaced at present.
Therefore, how to more accurately determine whether the vehicle-mounted battery needs to be replaced is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention provides a battery management system, a replacement system and a battery replacement determination system for a vehicle-mounted battery, which can more accurately determine whether the vehicle-mounted battery needs to be replaced.
In a first aspect, the present invention provides a battery management system for a vehicle-mounted battery, including:
the battery information acquisition module is used for acquiring battery management information of the vehicle-mounted battery, and the battery management information is used for determining whether the vehicle-mounted battery needs to be replaced;
and the vehicle-mounted communication module is used for sending battery management information to a replacement system of the vehicle-mounted battery.
Optionally, the battery management information includes a battery service life parameter and a battery service history parameter of the vehicle-mounted battery; wherein the battery service life parameter characterizes a remaining life of the on-board battery.
Optionally, the battery management information is a product of a battery service life parameter and a battery use history parameter.
Optionally, the battery replacement state type corresponding to the battery service life parameter is determined according to the parameter size of the battery service life parameter.
Optionally, the battery replacement state types include a first battery replacement state type, a second battery replacement state type, and a third battery replacement state type;
the first battery replacement state type is used for representing vehicle-mounted battery replacement; wherein the vehicle-mounted battery has no abnormality;
the second battery replacement state type is used for representing that the vehicle-mounted battery needs to be maintained and replaced regularly;
and the third battery replacement state type is used for representing that the vehicle-mounted battery needs to be reused as a fixed battery under the light load condition of constant current and constant voltage.
Optionally, the battery usage history parameter is a product of a battery charging and discharging capacity parameter, a battery health state parameter, a battery power consumption parameter, and an overcharge and discharge parameter.
Optionally, the vehicle-mounted communication module is configured to send the battery management information to a replacement system of the vehicle-mounted battery in a wired manner and/or a wireless manner.
In a second aspect, the present invention provides a replacement system for a vehicle-mounted battery, including:
the system-replacing end communication module is used for receiving battery management information of the vehicle-mounted battery, which is sent by the battery management system of the vehicle-mounted battery in the first aspect;
and the battery replacement judging module is used for determining whether the vehicle-mounted battery needs to be replaced or not based on the battery management information.
Optionally, the system-side communication module is replaced and configured to receive the battery management information in a wired manner and/or a wireless manner.
In a third aspect, the present invention provides a battery replacement determination system including:
a battery management system of the in-vehicle battery as shown in the first aspect;
the replacement system for the vehicle-mounted battery as shown in the second aspect.
The battery management system of the vehicle-mounted battery provided by the invention firstly acquires the battery management information of the vehicle-mounted battery by using the battery information acquisition module, and then sends the battery management information to the replacement system of the vehicle-mounted battery by using the vehicle-mounted communication module. Since the battery management information can represent the battery state of the vehicle-mounted battery, it can be determined more accurately whether the vehicle-mounted battery needs to be replaced based on the battery management information.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery management system of a vehicle-mounted battery provided in an embodiment of the invention;
fig. 2 is a schematic diagram of battery management information transmission provided by the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a replacement system for a vehicle-mounted battery according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a battery replacement determination system according to an embodiment of the present invention.
Detailed Description
In order to make the above and other features and advantages of the present invention more apparent, the present invention is further described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are for purposes of illustration only and are not intended to be limiting, as those of ordinary skill in the art will recognize. To those of ordinary skill in the art, the specific meaning of terms in the present invention can be understood as appropriate, unless otherwise specifically limited. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
With the popularization of electric vehicles, the use of vehicle-mounted batteries is becoming more and more common. The longer the in-vehicle battery is used, the more likely it is that the in-vehicle battery is abnormal, and at this time, the in-vehicle battery needs to be replaced. However, the related art cannot accurately determine whether the vehicle-mounted battery needs to be replaced at present.
In order to solve the technical problems in the related art, the invention provides a battery management system, a replacement system and a battery replacement determination system for a vehicle-mounted battery, which can more accurately determine whether the vehicle-mounted battery needs to be replaced. First, a battery management system for an in-vehicle battery will be described.
Fig. 1 is a schematic structural diagram of a battery management system of a vehicle-mounted battery according to an embodiment of the present invention, and as shown in fig. 1, the battery management system of the vehicle-mounted battery includes:
the battery information acquisition module is used for acquiring battery management information of the vehicle-mounted battery, and the battery management information is used for determining whether the vehicle-mounted battery needs to be replaced;
and the vehicle-mounted communication module is used for sending battery management information to a replacement system of the vehicle-mounted battery.
Wherein the battery management information of the vehicle-mounted battery can represent the battery state of the vehicle-mounted battery.
The battery management system of the vehicle-mounted battery firstly acquires the battery management information of the vehicle-mounted battery by using the battery information acquisition module, and then sends the battery management information to the replacement system of the vehicle-mounted battery by using the vehicle-mounted communication module. Since the battery management information can represent the battery state of the vehicle-mounted battery, it can be determined more accurately whether the vehicle-mounted battery needs to be replaced based on the battery management information.
In order to more accurately characterize the battery state of the vehicle-mounted battery, in one embodiment, the battery management information includes battery service life parameters and battery use history parameters of the vehicle-mounted battery; wherein the battery service life parameter characterizes a remaining life of the on-board battery.
In this embodiment, since the battery service life parameter represents the remaining service life of the vehicle-mounted battery, and the battery service history parameter represents the historical service condition of the vehicle-mounted battery, the battery state of the vehicle-mounted battery can be more accurately represented based on the battery management information in this embodiment, and it can be further more accurately determined whether the vehicle-mounted battery needs to be replaced.
Further, in one embodiment, the battery management information is a product of a battery life parameter and a battery usage history parameter.
In order to determine the battery replacement state type more accurately, in one embodiment, the battery replacement state type corresponding to the battery service life parameter is determined according to the parameter size of the battery service life parameter.
The parameter size of the service life parameter of the battery corresponds to the residual life of the vehicle-mounted battery. Specifically, when the parameter size of the service life parameter of the battery is 100%, the remaining life of the vehicle-mounted battery is 10 years; when the parameter of the service life parameter of the battery is 90%, the residual life of the vehicle-mounted battery is 7 years; when the parameter of the service life parameter of the battery is 80%, the residual life of the vehicle-mounted battery is 5 years; when the parameter size of the battery service life parameter is 70% or less, the remaining life of the vehicle-mounted battery is 0 year.
According to the mapping relation between the parameter size of the service life parameter of the battery and the residual life of the vehicle-mounted battery, the corresponding battery replacement state type can be determined.
In one embodiment, the battery replacement state types include a first battery replacement state type, a second battery replacement state type, and a third battery replacement state type;
the first battery replacement state type is used for representing vehicle-mounted battery replacement; wherein the vehicle-mounted battery has no abnormality;
the second battery replacement state type is used for representing that the vehicle-mounted battery needs periodic maintenance and replacement;
and the third battery replacement state type is used for representing that the vehicle-mounted battery needs to be reused as a fixed battery under the light load condition of constant current and constant voltage.
In particular, see table 1 below:
TABLE 1
Figure BDA0003716580360000051
Since the historical battery usage parameters represent the historical usage Of the vehicle-mounted battery, in order to more accurately represent the historical usage Of the vehicle-mounted battery, in one embodiment, the historical battery usage parameters are the product Of a battery charge-discharge capacity (Through-put (ah)) parameter, a battery State Of Health (SOH) parameter, a battery Power consumption (P/L) parameter, and an overcharge-discharge parameter. Wherein the parameter size range of the battery use history parameter is 100% to 8.75%.
Specifically, in combination with the above parameter magnitudes of the battery life parameters, the following table 2 can be derived:
TABLE 2
Figure BDA0003716580360000061
In order to improve the stability of information transmission under different scenarios, as shown in fig. 2, in one embodiment, the vehicle-mounted communication module is configured to send the battery management information to the replacement system of the vehicle-mounted battery in a wired manner and/or a wireless manner.
The wireless mode may be an Over-the-Air (OTA) mode, or may be a bluetooth transmission mode, a wifi transmission mode, or a zigbee transmission mode.
In the embodiment, the vehicle-mounted communication module transmits the battery management information in a wired mode and/or a wireless mode, and can deal with different scenes, so that the stability of information transmission in different scenes can be improved.
Fig. 3 is a schematic structural diagram of a system for replacing a vehicle-mounted battery according to an embodiment of the present invention, and as shown in fig. 3, the system for replacing a vehicle-mounted battery includes:
the system replacing end communication module is used for receiving battery management information of the vehicle-mounted battery sent by a battery management system of the vehicle-mounted battery;
and the battery replacement judging module is used for determining whether the vehicle-mounted battery needs to be replaced or not based on the battery management information.
The vehicle-mounted battery replacement system firstly utilizes a replacement system end communication module to receive the battery management information of the vehicle-mounted battery sent by a battery management system of the vehicle-mounted battery, and then utilizes a battery replacement judgment module to determine whether the vehicle-mounted battery needs to be replaced or not based on the battery management information. Since the battery management information can represent the battery state of the vehicle-mounted battery, it can be determined more accurately whether the vehicle-mounted battery needs to be replaced based on the battery management information.
In order to improve the stability of information transmission under different scenes, in one embodiment, the system-side communication module is replaced and used for receiving the battery management information in a wired mode and/or a wireless mode.
The wireless mode may be an Over-the-Air (OTA) mode, a bluetooth transmission mode, a wifi transmission mode, or a zigbee transmission mode.
Fig. 4 is a schematic structural diagram of a battery replacement determination system according to an embodiment of the present invention, and as shown in fig. 4, the present invention further provides a battery replacement determination system, including:
the battery management system of the in-vehicle battery shown in any of the above embodiments;
the replacement system of the vehicle-mounted battery shown in any of the above embodiments.
In the battery replacement determination system, the battery management system transmits battery management information of the vehicle-mounted battery to the replacement system, and the replacement system then determines whether the vehicle-mounted battery needs to be replaced based on the battery management information. Since the battery management information can represent the battery state of the vehicle-mounted battery, it can be determined more accurately whether the vehicle-mounted battery needs to be replaced based on the battery management information.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A battery management system for an on-vehicle battery, comprising:
the battery information acquisition module is used for acquiring battery management information of the vehicle-mounted battery, and the battery management information is used for determining whether the vehicle-mounted battery needs to be replaced;
and the vehicle-mounted communication module is used for sending the battery management information to a replacement system of the vehicle-mounted battery.
2. The battery management system of the in-vehicle battery according to claim 1, wherein the battery management information includes a battery service life parameter and a battery use history parameter of the in-vehicle battery; wherein the battery service life parameter characterizes a remaining life of the on-board battery.
3. The battery management system of the in-vehicle battery according to claim 2, wherein the battery management information is a product of the battery service life parameter and the battery use history parameter.
4. The battery management system of the on-vehicle battery according to claim 2, wherein a battery replacement state type corresponding to the battery service life parameter is determined according to a parameter size of the battery service life parameter.
5. The battery management system for the in-vehicle battery according to claim 4, wherein the battery replacement state type includes a first battery replacement state type, a second battery replacement state type, and a third battery replacement state type;
the first battery replacement state type is used for representing the replacement of the vehicle-mounted battery; wherein the vehicle-mounted battery is free from abnormality;
the second battery replacement state type is used for representing that the vehicle-mounted battery needs to be periodically maintained and replaced;
and the third battery replacement state type is used for representing that the vehicle-mounted battery needs to be reused as a fixed battery under the light load condition of constant current and constant voltage.
6. The battery management system of the in-vehicle battery according to claim 2, wherein the battery usage history parameter is a product of a capacity parameter of battery charge and discharge, a battery state of health parameter, a battery power consumption parameter, and an overcharge and discharge parameter.
7. The battery management system of the in-vehicle battery according to claim 1, wherein the in-vehicle communication module is configured to send the battery management information to a replacement system of the in-vehicle battery in a wired manner and/or a wireless manner.
8. A replacement system for an in-vehicle battery, comprising:
the replacement system end communication module is used for receiving battery management information of the vehicle-mounted battery sent by the battery management system of the vehicle-mounted battery according to any one of claims 1 to 7;
and the battery replacement judging module is used for determining whether the vehicle-mounted battery needs to be replaced or not based on the battery management information.
9. The replacement system for the vehicle-mounted battery according to claim 8, wherein the replacement system side communication module is configured to receive the battery management information in a wired manner and/or a wireless manner.
10. A battery replacement determination system, comprising:
the battery management system of the in-vehicle battery according to any one of claims 1 to 7;
the replacement system of the vehicle-mounted battery according to any one of claims 8 to 9.
CN202210744751.9A 2022-06-27 2022-06-27 Battery management system, replacement system, and battery replacement determination system for vehicle-mounted battery Pending CN115107571A (en)

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CN202210744751.9A CN115107571A (en) 2022-06-27 2022-06-27 Battery management system, replacement system, and battery replacement determination system for vehicle-mounted battery

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Application Number Priority Date Filing Date Title
CN202210744751.9A CN115107571A (en) 2022-06-27 2022-06-27 Battery management system, replacement system, and battery replacement determination system for vehicle-mounted battery

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