CN117022051A - Battery state management system, vehicle, and battery state display method - Google Patents

Battery state management system, vehicle, and battery state display method Download PDF

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Publication number
CN117022051A
CN117022051A CN202311071813.5A CN202311071813A CN117022051A CN 117022051 A CN117022051 A CN 117022051A CN 202311071813 A CN202311071813 A CN 202311071813A CN 117022051 A CN117022051 A CN 117022051A
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China
Prior art keywords
battery
module
vehicle
management system
signal
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CN202311071813.5A
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Chinese (zh)
Inventor
罗达逸
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Eve Energy Co Ltd
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Eve Energy Co Ltd
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Priority to CN202311071813.5A priority Critical patent/CN117022051A/en
Publication of CN117022051A publication Critical patent/CN117022051A/en
Pending legal-status Critical Current

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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
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application provides a battery state management system, a vehicle and a battery state display method, wherein a vehicle-mounted automatic diagnosis module in the battery state management system is respectively connected with a CAN signal conversion Bluetooth module and an electronic control module, the vehicle-mounted automatic diagnosis module is used for acquiring battery related data of a power battery from the electronic control module, the battery related data is sent to a target terminal connected with the CAN signal conversion Bluetooth module through the CAN signal conversion Bluetooth module, and a program is preset on the target terminal to display the battery state. According to the embodiment of the application, the CAN signal conversion Bluetooth module is newly added, so that the vehicle-mounted automatic diagnosis module CAN acquire the battery related data of the power battery from the electronic control module and send the battery related data to the target terminal connected with the CAN signal conversion Bluetooth module, and the battery state is displayed on the preset program of the target terminal, so that a user CAN conveniently inquire the state information and the health degree of the vehicle battery.

Description

Battery state management system, vehicle, and battery state display method
Technical Field
The application relates to the technical field of batteries, in particular to a battery state management system, a vehicle and a battery state display method.
Background
Currently, in a pure electric vehicle, a whole vehicle enterprise usually only displays the State of Charge (SOC) of the battery, where the SOC is used to represent the current level of the battery or the percentage of the remaining available electric energy, and does not display other information of the battery. The vehicle owner/maintenance personnel cannot acquire the state information of the vehicle battery in a standard manner, such as the state information of the vehicle battery and the health degree information of the battery cannot be checked through an app provided by the vehicle enterprise.
In addition, because the products of the charging piles are different, when the charging abnormality occurs, the vehicle owner cannot identify the reason of the charging failure; and the vehicle owner cannot acquire the attenuation degree of the battery, so that the endurance mileage of the vehicle under full charge cannot be estimated.
Therefore, how to facilitate the user to query the state information and the health degree of the vehicle battery is a technical problem to be solved in the current battery technical field.
Disclosure of Invention
The embodiment of the application provides a battery state management system, a vehicle and a battery state display method, and aims to solve the technical problem of how to conveniently inquire state information and health degree of a vehicle battery by a user.
In a first aspect, an embodiment of the present application provides a battery status management system, including an electronic control module, a vehicle-mounted automatic diagnosis module, and a CAN signal conversion bluetooth module, where the vehicle-mounted automatic diagnosis module is respectively connected to the CAN signal conversion bluetooth module and the electronic control module, and the vehicle-mounted automatic diagnosis module is configured to obtain battery related data of a power battery from the electronic control module, and send the battery related data to a target terminal connected to the CAN signal conversion bluetooth module through the CAN signal conversion bluetooth module, so as to perform battery status display on a preset program on the target terminal.
In an embodiment, the CAN signal-to-bluetooth module includes a first charging port and a second charging port, the first charging port is connected with a first power supply pin of the on-board automatic diagnosis module, and the second charging port is connected with a second power supply pin of the on-board automatic diagnosis module.
In an embodiment, the first power PIN is selected from PIN5 of the on-board automatic diagnostic module, and the second power PIN is selected from PIN16 of the on-board automatic diagnostic module.
In an embodiment, the CAN signal-to-bluetooth module includes a first signal input port and a second signal input port, where the first signal input port is connected to a fast-charging CANH interface of the on-board automatic diagnostic module, and the second signal input port is connected to a fast-charging CANL interface of the on-board automatic diagnostic module.
In an embodiment, the fast charge CANH interface and the fast charge CANL interface are selected from any two reserved pins of a plurality of reserved pins in the on-board automatic diagnostic module.
In an embodiment, the battery state management system further includes a charging protection module, where the fault protection module is respectively connected to the electronic control module and the on-board automatic diagnosis module, and is configured to detect a charging abnormal state of the power battery, and stop the charging state of the power battery according to the charging abnormal state.
In an embodiment, the battery state management system further includes a dual-mode high-definition positioning module, the dual-mode high-definition positioning module is connected with the vehicle-mounted automatic diagnosis module, and the dual-mode high-definition positioning module is used for acquiring a running track and sending the running track to the vehicle-mounted automatic diagnosis module.
In one embodiment, the battery related data includes battery data and battery charging data.
In a second aspect, an embodiment of the present application provides a battery status display method, including: collecting battery related data of the power battery through the electronic control module; and sending the battery related data to a target terminal connected with the CAN signal to Bluetooth module through the CAN signal to Bluetooth module so as to display the battery state on a preset program on the target terminal.
In a third aspect, an embodiment of the present application provides a vehicle, including a power battery and the battery state management system according to the first aspect, the power battery being connected to the electronic control module.
The embodiment of the application has the beneficial effects that:
the battery state management system provided by the embodiment of the application specifically comprises an electronic control module, a vehicle-mounted automatic diagnosis module and a CAN signal conversion Bluetooth module, wherein the vehicle-mounted automatic diagnosis module is respectively connected with the CAN signal conversion Bluetooth module and the electronic control module, and is used for acquiring battery related data of a power battery from the electronic control module, and transmitting the battery related data to a target terminal connected with the CAN signal conversion Bluetooth module through the CAN signal conversion Bluetooth module so as to display the battery state on a preset program on the target terminal. Under the condition that the original APP cannot inquire the state information and the health degree of the vehicle battery on the target terminal of the user, the vehicle-mounted automatic diagnosis module CAN acquire the battery related data of the power battery from the electronic control module and send the battery related data to the target terminal connected with the CAN signal-to-Bluetooth module through the newly-added CAN signal-to-Bluetooth module so as to display the battery state on a preset program on the target terminal, thereby being convenient for the user to inquire the state information and the health degree of the vehicle battery.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of one embodiment of a battery state management system provided by an embodiment of the present application;
FIG. 2 is a schematic diagram of pin position arrangement of an interface of an on-board automatic diagnostic module according to an embodiment of the present application;
fig. 3 is a flowchart of an embodiment of a battery status display method according to an embodiment of the present application.
Reference numerals:
100-battery state management system; 200-an electronic control module; 300-a vehicle-mounted automatic diagnosis module; 400-CAN signal changes bluetooth module.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
Because of the current pure electric vehicles in the related art, the whole vehicle enterprise generally only displays the SOC of the battery, and does not display other information of the battery. The vehicle owner/maintenance personnel cannot acquire the state information of the vehicle battery in a standard manner, such as the state information of the vehicle battery and the health degree information of the battery cannot be checked through an app provided by the vehicle enterprise. In addition, because the products of the charging piles are different, when the charging abnormality occurs, the vehicle owner cannot identify the reason of the charging failure; and the vehicle owner cannot acquire the attenuation degree of the battery, so that the endurance mileage of the vehicle under full charge cannot be estimated. Therefore, the embodiment of the application provides a battery state management system, a vehicle and a battery state display method, under the condition that the original APP on a target terminal of a user cannot inquire the state information and the health degree of a vehicle battery, a vehicle-mounted automatic diagnosis module CAN acquire battery related data of a power battery from an electronic control module and send the battery related data to the target terminal connected with the CAN signal-to-Bluetooth module through a newly-added CAN signal-to-Bluetooth module so as to display the battery state on a preset program on the target terminal, thereby being convenient for the user to inquire the state information and the health degree of the vehicle battery.
It should be noted that, hereinafter, the terms "battery module," "battery element," "cell," and "battery pack" are used interchangeably and may refer to any of a variety of different rechargeable battery chemistries and configurations, including, but not limited to, lithium ion (e.g., lithium ion phosphate, lithium cobalt oxide, lithium iron phosphate, other lithium metal oxides, etc.), lithium ion polymer, nickel metal hydride, nickel cadmium, nickel hydrogen, nickel zinc, silver zinc, or other battery types/configurations. The term "electric vehicle" is used herein to refer to an all-electric vehicle, also known as an EV, a plug-in hybrid vehicle, also known as a PHEV, or a hybrid vehicle (HEV), wherein the hybrid vehicle employs multiple propulsion sources, one of which is an electric drive system. It should be understood that the same reference numerals are used throughout the several drawings to designate the same components or components of equivalent function, and various modifications to the preferred embodiments, general principles and features described herein will be apparent to those skilled in the art. Furthermore, the drawings are intended to be illustrative of the scope of the application and are not to be taken as being drawn to scale.
Embodiments of the present application are generally applicable to systems employing electric motors, and more particularly, but not exclusively, to electric vehicles employing multi-phase electric motors (e.g., induction motors). Electric vehicles use one or more stored energy sources, such as a battery pack, to provide electrical energy to the vehicle. The energy is at least partially used to propel the vehicle. The stored energy may also be used to provide energy needed by other vehicle systems, such as vehicle lighting, vehicle zonable heating, ventilation, and air conditioning (HVAC) systems, auxiliary control systems (e.g., sensors, displays, navigation systems, etc.), vehicle entertainment systems (e.g., radio, DVD, MP3, etc.), and the like. Conventional electric vehicles include passenger vehicles and vehicles designed to transport cargo, examples of which include passenger cars, trucks, electric bicycles, and recreational boats. Electric vehicles also include specialized work vehicles and carts, some of which may incorporate aerial work platforms such as forklifts, scissor lifts, lifting and/or crank arms, access cleaning systems, conveyor belts, and platform carriers.
Referring to fig. 1 to fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a battery status management system provided by an embodiment of the present application, and fig. 2 is a schematic structural diagram of pin position arrangement of an interface of a vehicle-mounted automatic diagnosis module provided by an embodiment of the present application, where the battery status management system 100 includes an electronic control module 200, a vehicle-mounted automatic diagnosis module 300, and a CAN signal conversion bluetooth module 400, the vehicle-mounted automatic diagnosis module 300 is respectively connected to the CAN signal conversion bluetooth module 400 and the electronic control module 200, and the vehicle-mounted automatic diagnosis module 300 is configured to obtain battery related data of a power battery from the electronic control module 200, and send the battery related data to a target terminal connected to the CAN signal conversion bluetooth module 400 through the CAN signal conversion bluetooth module 400, so as to display a battery status on a preset program on the target terminal.
Among them, the electronic control module 200 (Electronic Control Unit, ECU) is an electronic module for controlling and managing the respective systems in the vehicle. Different ECUs are responsible for different functions, such as an Engine Control Unit (ECU), a transmission control unit, an ABS control unit, etc. The ECU performs calculation and decision according to the input data of the sensor and a preset algorithm, and controls the functions of the vehicle through the actuator. The battery management system (Battery Management System, BMS) is also an ECU for managing the battery system. The ECU in the present application is preferably a BMS. In particular, the BMS serves to monitor, control and protect the performance and safety of the battery pack. It is commonly used in battery applications such as electric vehicles, hybrid vehicles, energy storage systems, and the like. The main functions of the BMS include: 1. and (3) battery monitoring: monitoring parameters such as voltage, current, temperature, capacity and the like of the battery pack so as to know the state of the battery pack in real time; 2. cell equalization: the voltage of each single cell is ensured to be kept in a reasonable range by controlling the charge and discharge of each single cell in the battery pack, so that the overall performance and the service life of the battery pack are improved; 3. and (3) charge and discharge control: controlling the charging and discharging processes of the battery pack to optimize the performance, safety and life of the battery; 4. temperature management: monitoring the temperature of the battery pack and taking measures to control the temperature to prevent damage to the battery by overheating or overcooling; 5. fault diagnosis and protection: detecting and reporting faults of the battery pack, and taking corresponding measures such as power-off protection, overcurrent protection, overvoltage protection, overdischarge protection and the like to ensure safe and stable operation of the battery pack; the BMS is designed and implemented by means of technologies such as sensors, control algorithms, communication interfaces, safety protection measures, etc., to ensure the reliability, performance, and safety of the battery pack.
Specifically, the above-mentioned battery related data includes battery data and battery charging data, wherein the battery data includes battery rated capacity, rated voltage, battery type, battery highest and lowest voltage, battery highest and lowest temperature, SOC, all cell voltages and temperatures, battery manufacturer, and production date; the battery charge data includes: the charging time period is longer than the charging time period, the remaining charging time period, the charging electric quantity, the current charging voltage, current power, the charging times of the battery and the charging fault reason when the charging fault occurs.
The On-board automatic diagnostic module 300 (On-Board Diagnostics, OBD) is a standardized interface for vehicle fault diagnosis and monitoring. The OBD interface is connected to the ECU of the vehicle and can read and interpret the fault codes, sensor data and other relevant information of the various systems of the vehicle. Such an interface allows the diagnostic tool or device to communicate with the ECU of the vehicle for troubleshooting, diagnosis, and repair.
In an embodiment of the application, the OBD interface uses a standard 16-pin connector located on the vehicle chassis, near the driver's seat or inside the vehicle. Through this interface, operations such as diagnosing, reading and clearing fault codes, monitoring and recording sensor data of the vehicle, setting and adjusting vehicle parameters, etc. can be performed.
It should be noted that the version of the OBD interface and the functions supported will vary from vehicle type to vehicle type, train to train and year to year, and the corresponding OBD interface and diagnostic tool may be selected according to the specific situation of the vehicle.
The CAN signal to bluetooth module 400 is a device for converting a data signal on a CAN bus into a bluetooth signal to implement wireless transmission and remote monitoring. The CAN bus is a communication protocol used in vehicles, industry and other applications for transmitting data and commands between controllers. The data on the CAN bus CAN be connected to a bluetooth device, such as a smart phone, tablet computer or computer, through the CAN signal to bluetooth module 400. Thus, a user CAN read and monitor CAN data on the vehicle or equipment through Bluetooth connection, and functions such as remote diagnosis, real-time monitoring and fault detection are realized. The CAN signal to bluetooth module 400 typically has a CAN interface for connecting to the CAN bus of a vehicle or device. It also has a bluetooth module for wireless communication with bluetooth devices. The module typically has a built-in processor and software that CAN parse and convert the data on the CAN bus into a data format conforming to the bluetooth communication protocol, thereby enabling a wireless connection with the bluetooth device.
It should be noted that, the reason for using the fast-charging CAN channel is that the fast-charging communication protocol is national standard, which is the only standard communication protocol of the new energy vehicle. So that it can be suitable for all vehicles with national standard quick charge. The national standard protocol is GBT-27930.
The target terminal is a terminal device used by a user, such as a smart phone, a tablet computer or a computer, and the preset program on the target terminal CAN be a target APP updated by an enterprise on the basis of an original APP, or a target APP reinstalled by the user and adapted to the battery state management system 100, and in summary, the target APP has a function of performing data interaction with the CAN signal conversion bluetooth module 400 compared with the original APP.
In the battery state management system 100 provided by the embodiment of the application, under the condition that the original APP on the target terminal of the user cannot inquire the state information and the health degree of the vehicle battery, the vehicle-mounted automatic diagnosis module 300 CAN acquire the battery related data of the power battery from the electronic control module 200 and send the battery related data to the target terminal connected with the CAN signal-to-bluetooth module 400 through the newly added CAN signal-to-bluetooth module 400 so as to display the battery state on a preset program on the target terminal, thereby being convenient for the user to inquire the state information and the health degree of the vehicle battery.
In some embodiments of the present application, when the original APP does not support the capability of data interaction with the CAN signal to bluetooth module 400, the CAN signal to bluetooth module 400 includes a first charging port and a second charging port, where the first charging port is connected to a first power supply pin of the on-board automatic diagnostic module 300, and the second charging port is connected to a second power supply pin of the on-board automatic diagnostic module 300.
As shown in table 1 below, table 1 is one embodiment of the corresponding names of the pins in the on-board automatic diagnostic module 300.
Table 1:
No. Pin Name No. Pin Name
1 LS CAN_H 9 LS CAN_L
2 Reserved 10 Reserved
3 Ms_CAN_H(125Kbps) 11 Ms_CAN_L(125Kbps)
4 chassis ground 12 Reserved
5 Signal ground 13 Reserved
6 HS CAN_H(500Kbps) 14 HS CAN_L(500Kbps)
7 K Line of KWP2K 15 L Line of lSO9141-2
8 Reserved 16 vehicle Battery Positive(KL30)
in a specific embodiment, the first power supply PIN is selected from PIN5 (Signal group) of the vehicle-mounted automatic diagnostic module 300, and the second power supply PIN is selected from PIN16 (vehicle Battery Positive (KL 30)) of the vehicle-mounted automatic diagnostic module 300, and it should be noted that the numbers of the PINs can be adjusted according to actual requirements, based on the functions required for connection.
In an embodiment of the present application, the CAN signal-to-bluetooth module 400 includes a first signal input port and a second signal input port, where the first signal input port is connected to the fast-charging CANH interface of the on-board automatic diagnostic module 300, and the second signal input port is connected to the fast-charging CANL interface of the on-board automatic diagnostic module 300.
The fast charge CANH interface and the fast charge CANL interface are interfaces of CAN bus signals for fast charging. The CAN bus is a serial bus protocol commonly used in vehicle communication and control systems for communication between various electronic units within a vehicle.
Specifically, the fast charging CANH interface and the fast charging CANL interface have the following functions respectively:
1. fast charging CANH interface: the fast charge CANH interface is a high level signal line of the CAN bus. In a rapid charging system of an electric vehicle or a hybrid vehicle, it is used to transmit rapid charging related signals and data. Information related to the quick charge, such as a quick charge request, charge power control, etc., can be transmitted and received through the CANH interface.
2. Fast-charging CANL interface: the fast charge CANL interface is a low level signal line of the CAN bus. The differential signal transmission system of the CAN bus is formed by matching the CAN interface with the CANH interface. The fast-charging CANL interface transmits the complement of the CAN bus signal, as opposed to the CANH interface signal. Through the CANL interface, data transmission and communication of the CAN bus CAN be realized.
In a word, the fast charging CANH and CANL interface realizes data transmission and communication in the fast charging system through a differential signal transmission mode of the CAN bus. Thus, the quick charging request, control and monitoring operations can be performed, and the more efficient and safer charging process can be realized.
In a specific embodiment, the fast charge CANH interface and the fast charge CANL interface are selected from any two reserved pins of the plurality of reserved pins in the on-board automatic diagnostic module 300. Such as PIN2 and PIN10 in table 1. In addition to this, PIN8, PIN12, PIN13 may be selected.
In order to avoid a safety accident caused by abnormal charging of the battery, in some embodiments of the present application, the battery state management system 100 further includes a charging protection module (not shown) connected to the electronic control module 200 and the on-board automatic diagnosis module 300, respectively, for detecting an abnormal charging state of the power battery and stopping the charging state of the power battery according to the abnormal charging state.
When the user needs to improve the original vehicle positioning function in a complex traffic environment, in some embodiments of the present application, the battery state management system 100 further includes a dual-mode high-definition positioning module (not shown), where the dual-mode high-definition positioning module is connected to the on-vehicle automatic diagnosis module 300, and the dual-mode high-definition positioning module is configured to collect a driving track and send the driving track to the on-vehicle automatic diagnosis module 300.
In some embodiments of the present application, by fully charging the battery, the user can obtain the SOH of the battery through the charge amount, and the specific soh=charge amount/factory amount.
In another embodiment of the present application, there is also provided a battery status display method, as shown in fig. 3, including the following steps:
201. and acquiring battery related data of the power battery through the electronic control module.
202. And sending the battery related data to a target terminal connected with the CAN signal-to-Bluetooth module through the CAN signal-to-Bluetooth module so as to display the battery state on the target terminal.
Specifically, battery state display is performed on a preset program on the target terminal.
According to the battery state display method provided by the embodiment of the application, under the condition that the original APP on the target terminal of the user cannot inquire the state information and the health degree of the vehicle battery, the vehicle-mounted automatic diagnosis module 300 CAN acquire the battery related data of the power battery from the electronic control module 200 through the newly-added CAN signal to Bluetooth module 400 and send the battery related data to the target terminal connected with the CAN signal to Bluetooth module 400 so as to display the battery state on a preset program on the target terminal, thereby being convenient for the user to inquire the state information and the health degree of the vehicle battery.
Embodiments of the present application also provide a vehicle comprising a power battery and a battery state management system 100 as described above, the power battery being connected to the electronic control module 200.
The foregoing has outlined rather broadly the more detailed description of embodiments of the application, wherein the principles and embodiments of the application are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.

Claims (10)

1. The battery state management system is characterized by comprising an electronic control module, a vehicle-mounted automatic diagnosis module and a CAN signal conversion Bluetooth module, wherein the vehicle-mounted automatic diagnosis module is respectively connected with the CAN signal conversion Bluetooth module and the electronic control module, and the vehicle-mounted automatic diagnosis module is used for acquiring battery related data of a power battery from the electronic control module and sending the battery related data to a target terminal connected with the CAN signal conversion Bluetooth module through the CAN signal conversion Bluetooth module.
2. The battery state management system of claim 1, wherein the CAN signal to bluetooth module comprises a first charging port and a second charging port, the first charging port being connected to a first power pin of the on-board automatic diagnostic module, the second charging port being connected to a second power pin of the on-board automatic diagnostic module.
3. The battery state management system of claim 2, wherein the first power PIN is selected from PIN5 of the on-board automatic diagnostic module and the second power PIN is selected from PIN16 of the on-board automatic diagnostic module.
4. The battery state management system of claim 1, wherein the CAN signal to bluetooth module comprises a first signal input port and a second signal input port, the first signal input port being connected to a fast charge CANH interface of the on-board automatic diagnostic module, the second signal input port being connected to a fast charge CANL interface of the on-board automatic diagnostic module.
5. The battery state management system of claim 4, wherein the fast charge CANH interface and the fast charge CANL interface are selected from any two of a plurality of reserved pins in the on-board automatic diagnostic module.
6. The battery state management system of any one of claims 1-5, further comprising a charge protection module, the fault protection module being respectively coupled to the electronic control module and the on-board automatic diagnostic module for detecting a state of charge anomaly of the power battery and stopping the state of charge of the power battery based on the state of charge anomaly.
7. The battery state management system of any of claims 1-5, further comprising a dual-mode high-definition positioning module coupled to the on-board automatic diagnostic module, the dual-mode high-definition positioning module configured to collect a travel track and send the travel track to the on-board automatic diagnostic module.
8. The battery state management system of any of claims 1-5, wherein the battery related data includes battery data and battery charging data.
9. A battery status display method, applied to the battery status management system according to any one of claims 1 to 8, comprising:
collecting battery related data of the power battery through the electronic control module;
and sending the battery related data to a target terminal connected with the CAN signal to Bluetooth module through the CAN signal to Bluetooth module so as to display the battery state on a preset program on the target terminal.
10. A vehicle comprising a power battery and a battery state management system according to any one of claims 1-8, the power battery being connected to the electronic control module.
CN202311071813.5A 2023-08-23 2023-08-23 Battery state management system, vehicle, and battery state display method Pending CN117022051A (en)

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