CN111175667A - Battery test system - Google Patents
Battery test system Download PDFInfo
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- CN111175667A CN111175667A CN201911425880.6A CN201911425880A CN111175667A CN 111175667 A CN111175667 A CN 111175667A CN 201911425880 A CN201911425880 A CN 201911425880A CN 111175667 A CN111175667 A CN 111175667A
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- battery
- automobile chassis
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- data acquisition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The embodiment of the invention discloses a battery test system, which comprises: the data acquisition module is electrically connected with a battery of the automobile chassis and used for acquiring the state information of each single battery cell in a battery system of the automobile chassis and the current information of the battery system; the state information comprises voltage information and temperature information; the communication conversion module is in communication connection with the data acquisition module and is used for transmitting the state information and the current information acquired by the data acquisition module; and the main control module is in communication connection with the communication conversion module and is used for receiving the state information of each single battery cell in the battery system of the automobile chassis, transmitted by the communication conversion module, analyzing the information and judging the service condition of the battery system of the automobile chassis according to a preset judgment strategy. Through the system, the battery of the automobile chassis can be directly connected, the analysis of the capacity, the pressure difference, the operation consistency of the battery core and the like is completed, the modular design and the integration level of the system are high, the cost is saved, the space is saved, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery testing system.
Background
In recent years, with the rapid development of new energy automobiles, the gradient utilization of power batteries is a hot topic, because the batteries of electric vehicles are retired from the vehicles after being used for a certain period or times as time goes by. However, the situation of use of the automobile users causes a lot of uncertainty of the replaced battery, the battery inside some chassis may be damaged by only a few cells, so that the whole chassis cannot be used, and the difference between one or two cells and other cells is large, so that the electric quantity of the whole chassis is not enough to support the corresponding mileage. Therefore, it is particularly important to fully analyze the retired power battery.
In the use process of the existing electric automobile, a Battery Management System (BMS) of the existing electric automobile is designed by a Battery manufacturer, and a technical barrier exists. It is basically difficult to detect information about the battery in the chassis by other means than the battery manufacturer's authorization. The existing battery detection cabinet needs a large space and complex wiring for testing, or a battery of the chassis needs to be disassembled into battery cells or a battery module consisting of a plurality of battery cells for testing, so that the whole chassis test is difficult.
Therefore, how to design a test system capable of rapidly detecting the chassis battery information becomes a technical problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a battery test system which can be used for rapidly detecting a battery of an automobile chassis, is high in integration level, and can save cost, space and operation.
A battery test system, comprising:
the data acquisition module is electrically connected with a battery of the automobile chassis and used for acquiring state information of each single battery cell in a battery system of the automobile chassis and current information of the battery system; the state information comprises voltage information and temperature information;
the communication conversion module is in communication connection with the data acquisition module and is used for transmitting the state information and the current information of the battery system acquired by the data acquisition module;
the main control module is in communication connection with the communication conversion module and is used for receiving the state information of each single battery cell in the battery system of the automobile chassis and the current information of the battery system, which are transmitted by the communication conversion module, analyzing the state information and the current information of the battery system and judging the service condition of the battery system of the automobile chassis according to a preset judgment strategy.
Optionally, in one embodiment, the vehicle-mounted power supply further includes a power conversion module, the power conversion module is in communication connection with the communication conversion module, the power conversion module is electrically connected with a battery of the vehicle chassis and a power grid, and the power conversion module is configured to perform mutual conversion between an ac power output by the power grid and a dc power output by the battery;
the power supply conversion module is also used for receiving a control instruction sent by the main control module through the communication module and changing the conversion power and the power supply conversion direction according to the control instruction.
Optionally, in one embodiment, the vehicle further includes a battery control module, the battery control module is electrically connected to the battery of the vehicle chassis, the power conversion module and the data acquisition module, and the battery control module is configured to control connection and disconnection between the battery of the vehicle chassis and the power conversion module, and is configured to disconnect the battery from the outside when the battery is in an abnormal state.
Optionally, in one embodiment, the power conversion module includes an ac-dc converter, and the ac-dc converter is configured to rectify an ac power output by the power grid into a dc power to charge a battery of the automobile chassis, and fully charge the battery to SOC 100%; and the system is also used for inverting a direct current power supply output by the battery of the automobile chassis into an alternating current power supply to discharge the power grid until the SOC is 0%.
Optionally, in one embodiment, the data acquisition module includes a data acquisition unit master control and a data acquisition unit slave control, and the data acquisition unit slave control is electrically connected to the battery of the automobile chassis and is configured to acquire state information of each single battery cell in the battery of the automobile chassis and current information of the battery system;
the data collector master control is electrically connected with the data collector slave control and the battery control module, is used for sending the state information collected by the data collector slave control to the master control module, and is also used for controlling the battery control module to cut off the connection between the battery of the automobile chassis and the power supply conversion module when the battery is collected to be in an abnormal condition.
Optionally, in one embodiment, after disconnecting the data acquisition connector and the main power line of the primary battery module, the data acquisition unit is connected to each single battery cell in the battery of the automobile chassis through a sampling line, and calculates state information of each single battery cell corresponding to the sampling line and current information of the battery system according to the data acquired by the sampling line.
Optionally, in one embodiment, the main control module is further configured to calculate, according to the state information of each single battery cell in the automobile chassis and the current information of the battery system, a capacity, a charge-discharge temperature, a charge-discharge efficiency, and an internal resistance of each single battery cell of the automobile chassis;
calculating the battery health degree of each single battery cell according to the state information, the current information of the battery system, the capacity of the battery system of the automobile chassis, the charge-discharge temperature, the charge-discharge efficiency and the internal resistance of each single battery cell;
and judging the service condition of the battery of the automobile chassis according to the battery health degree of each single battery cell.
Optionally, in one embodiment, the determining, by the main control module, the service condition of the battery of the automobile chassis according to the battery health degree of each battery cell includes:
when the battery health degree of each single battery cell is greater than or equal to a first threshold value, judging that the battery of the automobile chassis is in a normal use state;
when the battery health degree of the single battery core is smaller than a second threshold value, judging that the corresponding single battery core is in a state to be repaired;
and when the health degree of the batteries with the number of the monomer battery cores larger than the preset number is smaller than a first threshold value, judging that the batteries of the automobile chassis are in a state to be replaced.
Optionally, in one embodiment, the vehicle further includes a display module, where the display module is electrically connected to the main control module, and is configured to display state information of each single battery cell in the vehicle chassis, current information of the battery system, and a use condition of a battery of the vehicle chassis.
Optionally, in one embodiment, the communication conversion module includes a communication converter, and is used to connect with the main control module through a network cable, connect with the data acquisition module through a CAN bus or a 485 bus, and connect with the power conversion module through a 485 bus.
The embodiment of the invention has the following beneficial effects:
the battery testing system is electrically connected with a battery of an automobile chassis through a data acquisition module and is used for acquiring the state information of each single battery cell in the battery of the automobile chassis; the state information acquired by the data acquisition module is transmitted through a communication conversion module; the state information of each single battery cell in the automobile chassis and the current information of the battery system, which are transmitted by the communication conversion module, are received through the main control module, the state information and the current information of the battery system are analyzed, and the service condition of the battery of the automobile chassis is judged according to a preset judgment strategy. Through the system, the battery of the automobile chassis can be directly connected, the analysis of the capacity, the pressure difference, the operation consistency of the battery core and the like is completed, the modular design and the integration level of the system are high, the cost is saved, the space is saved, and the operation is convenient.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a block diagram of a battery test system according to one embodiment;
FIG. 2 is a block diagram showing the construction of a battery test system according to another embodiment;
fig. 3 is a block diagram showing the structure of a battery test system according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The following provides a battery test system, which can be used for testing a battery of an automobile chassis, wherein the automobile can be specifically an electric automobile or a hybrid electric automobile; the battery can be a storage battery or a fuel cell, wherein the storage battery is suitable for pure electric vehicles and comprises a lead-acid storage battery, a nickel-hydrogen battery, a sodium-sulfur battery, a secondary lithium battery, an air battery and the like; fuel cells are used exclusively in fuel cell electric vehicles, including alkaline fuel cells, phosphoric acid fuel cells, molten carbonate fuel cells, solid oxide fuel cells, proton exchange membrane fuel cells, direct methanol fuel cells, and the like. The battery can be used as a power source of a vehicle driving system. The battery test system that this embodiment provided can detect vehicle chassis's battery fast, and the integrated level of system is high, can practice thrift the cost, save space, the operation of being convenient for. As shown in fig. 1, which is a block diagram of a battery testing system in an embodiment, the system includes a data acquisition module 110, a communication conversion module 120, and a main control module 130, wherein the data acquisition module 110 is electrically connected to a battery of an automobile chassis, the communication conversion module 120 is communicatively connected to the data acquisition module 110, and the main control module 130 is communicatively connected to the communication conversion module 120.
The data acquisition module 110 is configured to acquire state information of each single battery cell in a battery system of the automobile chassis and current information of the battery system; the status information includes voltage information and temperature information. Specifically, the data acquisition module 110 may establish a connection with each single battery cell in the battery of the automobile chassis, for example, the connection is made to each single battery cell through a sampling line; therefore, the state information of each single battery cell is collected, such as collecting the voltage, temperature and other data of each single battery cell. Further, the data acquisition module 110 transmits the acquired data to the main control module 130 through the communication conversion module 120, so that the main control module 130 can analyze the acquired data.
The communication conversion module 120 is communicatively connected to the data acquisition module 110, and is configured to transmit the state information of the chassis battery of the vehicle and the current information of the battery system, which are acquired by the data acquisition module 120. Specifically, the communication conversion module 120 is used for cooperating with data transmission between the data acquisition module 110 and the main control module 130, and may send the state information of the vehicle chassis battery acquired by the data acquisition module 120 to the main control module 130 so as to facilitate the main control module 130 to analyze the acquired data, or may transmit the control instruction sent by the main control module 130 to the data acquisition module 110 to control the operation of the data acquisition module 110. For example, the communication conversion module 120 may be a communication interface converter, such as a communication converter, a serial port converter, etc., capable of implementing data conversion between different communication interfaces.
The main control module 130 is configured to receive the state information of each single battery cell in the battery system of the automobile chassis and the current information of the battery system, which are transmitted by the communication conversion module 120, analyze the state information and the current information of the battery system, and determine the service condition of the battery of the automobile chassis according to a preset determination policy. Specifically, the main control module 130 may receive data such as voltage and temperature Of each battery cell in the vehicle chassis, calculate a State Of Health (SOH) Of each battery cell according to the collected data, and determine a service condition Of the battery Of the vehicle chassis according to the State Of Health Of each battery cell, so as to realize a rapid test Of the battery Of the vehicle chassis.
The battery testing system can be directly connected with the battery of the automobile chassis to complete analysis on the capacity, the pressure difference, the operation consistency of the battery core and the like, and is high in modular design and integration level, cost-saving, space-saving and convenient to operate.
In one embodiment, as shown in fig. 2, which is a block diagram of a battery testing system in another embodiment, the battery testing system further includes a power conversion module 230, the power conversion module 230 is communicatively connected to the communication conversion module 220, the power conversion module 230 is electrically connected to a battery of a chassis of the vehicle and a power grid, and the power conversion module 230 is configured to convert an ac power output by the power grid into a dc power output by the battery. The power conversion module 230 is further configured to receive a control instruction sent by the main control module 240 through the communication module 220, and change the conversion power and the power conversion direction according to the control instruction. The power conversion module 230 may perform conversion between an ac power and a dc power, for example, rectify the ac power into the dc power, or invert the dc power into the ac power. The power grid can be understood as an integral of substations and power transmission and distribution lines of various voltages in a power system, for example, 380V alternating current commercial power provided by national power grids through industrial parks.
In one embodiment, the power conversion module comprises an ac/dc converter, and the ac/dc converter can be used to rectify an ac power output by a power grid into a dc power to charge a battery of the automobile chassis to a full SOC of 100%; the system can also be used for inverting a direct current power supply output by a battery of the automobile chassis into an alternating current power supply to discharge the power grid to the SOC 0%. Specifically, the AC power supply is rectified to a DC power supply of 0.5C or more during charging, and the output DC power supply is inverted to an AC power supply of 0.75C during discharging, and the AC/DC converter can perform AC/DC (AC/DC) conversion by a method such as thermoelectric conversion, electromotive system, electrostatic system, or electronic system.
Charging the battery system by using a power grid at a temperature of more than 0.5 ℃, discharging at 0.75 ℃ after the battery system is fully charged to SOC 100%, and stopping discharging until SOC 0%; a complete charge-discharge cycle is carried out. As a complete cycle is made, the data are all from the acquired real data and are not estimated, and the data accuracy is very high.
In one embodiment, as shown in fig. 3, the structural block diagram of the battery testing system in another embodiment is shown, the battery testing system further includes a battery control module 320, the battery control module 320 is electrically connected to a battery of the vehicle chassis, a power conversion module 340 and a data acquisition module 310, and the battery control module 320 is configured to control connection and disconnection between the battery of the vehicle chassis and the power conversion module 340, and is configured to disconnect the battery from the outside when an abnormal state occurs in the battery. Specifically, the battery control module 320 includes a battery control component, and the connection between the battery and the outside can be controlled by controlling the connection/disconnection of the battery control component, so as to protect the battery. For example, the battery control module 320 may be a battery connector, or may be another component having a switch function, which is not limited in this embodiment.
In one embodiment, continuing with FIG. 3, data collection module 310 includes a data collector master 314 and a data collector slave 312. The slave controller 312 of the data acquisition unit is electrically connected to the battery of the automobile chassis and is configured to acquire state information of each cell in the battery of the automobile chassis and current information of the battery system. The data collector master control 314 is electrically connected with the data collector slave control 312 and the battery control module 320, and is configured to send the state information collected by the data collector slave control 312 to the master control module 350, and further configured to control the battery control module 320 to cut off the connection between the battery of the automobile chassis and the power conversion module 340 when the abnormal condition of the battery is collected.
Specifically, the data collector master control 312 receives data collected by the data collector slave control 312 and sends the data to the master control module 350, and the data collector master control 312 is further configured to control the battery control unit 320 according to the collected abnormal data, so that the connection between the battery of the automobile chassis and the power conversion module 340 is cut off, and the battery of the automobile chassis is protected. The slave controller 312 of the data acquisition unit may acquire voltage information and temperature information of all the individual electric cores in the automobile chassis.
In one embodiment, the communication conversion module comprises a communication converter, which is connected with the main control module through a network cable, connected with the data acquisition module through a CAN bus or a 485 bus, and connected with the power conversion module through a 485 bus.
In one embodiment, the data acquisition unit is connected to each single battery cell in the battery of the automobile chassis through a sampling line after disconnecting the data acquisition connector and the main power line of the primary battery module, and calculates state information of each single battery cell corresponding to the sampling line and current information of the battery system according to the data acquired by the sampling line. For example, a battery in an automobile chassis includes 95 individual battery cells connected in series, the data collector slave 312 is connected to each individual battery cell through a sampling line, and calculates data such as voltage and temperature of each individual battery cell corresponding to each sampling line according to data of the sampling line, for example, if the voltage of a first battery cell is U1, the negative electrode of the battery cell is connected to a sampling line B0, and the positive electrode is connected to a sampling line B1, then the voltage difference between the sampling line B0 and the sampling line B1 is U1. The slave control of the data acquisition unit can also acquire the temperature of each single battery cell corresponding to each sampling line through the temperature sampling line.
Connecting a signal acquisition connector of the battery system package to a signal acquisition connector of the system, and carrying out information acquisition by crossing a BMS (battery management system) of an original factory; the system is used for carrying out data acquisition by utilizing the own data acquisition control, the original control box of the battery system of the electric automobile is separated, the CAN protocol of the original factory is not required to be analyzed, and the system is used for carrying out data acquisition by utilizing the own data acquisition control.
In one embodiment, the main control module is further used for analyzing the collected data of the battery of the automobile chassis. The main control module calculates the capacity, the charge-discharge temperature, the charge-discharge efficiency and the internal resistance of each single battery cell of the battery system of the automobile chassis according to the state information of each single battery cell in the battery system of the automobile chassis and the current information of the battery system;
calculating the battery health degree of each single battery cell according to the state information, the current information of the battery system, the capacity of the battery system of the automobile chassis, the charge-discharge temperature, the charge-discharge efficiency and the internal resistance of each single battery cell;
and judging the service condition of the battery of the automobile chassis according to the battery health degree of each single battery cell.
The battery health degree can be used for representing the battery capacity, health degree and performance state of the battery, namely the percentage of the full charge capacity of the battery relative to the rated capacity, and the battery which is newly delivered from a factory is 100% and is completely discarded is 0% under the common condition. The service condition of the battery of the automobile chassis is judged according to the battery health degree of each single battery cell, the test result of the battery can be directly and automatically analyzed, the visual analysis result of the service condition of the battery is obtained, operation and analysis are not needed by professionals, the cost is saved, the operation is convenient, and the management of maintenance personnel on the battery is convenient.
In one embodiment, the main control module may automatically analyze and determine whether the battery of the battery chassis is good or bad and determine the consistency of all the battery cells in the battery chassis according to the tested voltage information and temperature information of the single battery cells and the current information of the battery system. Further, the main control module judges the service condition of the battery of the automobile chassis according to the battery health degree of each single battery cell, and the service condition comprises the following steps: when the battery health degree of each single battery cell is greater than or equal to a first threshold value, judging that the battery of the automobile chassis is in a normal use state; when the battery health degree of the single battery core is smaller than a second threshold value, judging that the corresponding single battery core is in a state to be repaired; and when the health degree of the batteries with the number of the monomer battery cores larger than the preset number is smaller than a first threshold value, judging that the batteries of the automobile chassis are in a state to be replaced.
Specifically, for example, the operating curve of the new electric core can be compared with the operating curves of all the electric cores of the test chassis to judge the quality of the battery electric core, and the battery health degree of each electric core can be estimated by comparing the operating voltage data of the new electric core. The new battery cell refers to a battery cell which is just delivered from a factory, a voltage operation curve of the new battery cell can be obtained, and the voltage operation curve is drawn according to the collected voltage data of the single battery cells. Further, when the SOH of the battery is higher than 85%, the battery can be recycled; when the individual electric core does not meet the requirement, the corresponding electric core can be determined and repaired or replaced; when the SOH of most of the battery cores is less than 85%, echelon utilization can be considered, batteries with the SOH within 70% -85% can be used in the field of energy storage, and batteries with the SOH within 50% -70% can be used in the field of standby power. When the difference between the SOH of a certain cell and the SOH of other cells is large, even if the SOH does not reach the critical value, it indicates that the cell is attenuated too fast, and corresponding processing is required. Through the judgment strategy, the quality of the battery chassis can be judged, and the consistency condition of all the battery cores in the battery chassis can be judged.
In an embodiment, please continue to refer to fig. 3, the battery testing system further includes a display module 360, wherein the display module 360 is electrically connected to the main control module 350, and is configured to display status information of each battery cell in the vehicle chassis and a usage condition of the battery of the vehicle chassis.
The battery testing system is electrically connected with a battery of an automobile chassis through a data acquisition module and is used for acquiring the state information of each single battery cell in the battery of the automobile chassis; the state information acquired by the data acquisition module and the current information of the battery system are transmitted through a communication conversion module; the state information of each single battery cell in the automobile chassis and the current information of the battery system, which are transmitted by the communication conversion module, are received through the main control module, the state information and the current information of the battery system are analyzed, and the service condition of the battery of the automobile chassis is judged according to a preset judgment strategy. Through the system, the battery of the automobile chassis can be directly connected, the analysis of the capacity, the pressure difference, the operation consistency of the battery core and the like is completed, the modular design and the integration level of the system are high, the cost is saved, the space is saved, and the operation is convenient.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A battery test system, comprising:
the data acquisition module is electrically connected with a battery of the automobile chassis and used for acquiring state information of a monomer battery core in a battery system of the automobile chassis and current information of the battery system; the state information comprises voltage information and temperature information;
the communication conversion module is in communication connection with the data acquisition module and is used for transmitting the state information acquired by the data acquisition module and the current information of the battery system;
the main control module is in communication connection with the communication conversion module and is used for receiving the state information of each single battery cell in the battery system of the automobile chassis and the current information of the battery system, which are transmitted by the communication conversion module, analyzing the state information and the current information of the battery system and judging the service condition of the battery system of the automobile chassis according to a preset judgment strategy.
2. The system of claim 1, further comprising a power conversion module, wherein the power conversion module is communicatively connected with the communication conversion module, the power conversion module is electrically connected with a battery of the automobile chassis and a power grid, and the power conversion module is configured to convert an alternating current power output by the power grid into a direct current power output by the battery;
the power supply conversion module is also used for receiving a control instruction sent by the main control module through the communication module and changing the conversion power and the power supply conversion direction according to the control instruction.
3. The system according to claim 2, further comprising a battery control module, wherein the battery control module is electrically connected with the battery of the automobile chassis, the power conversion module and the data acquisition module, and is used for controlling the connection between the battery of the automobile chassis and the power conversion module and cutting off the connection between the battery and the outside when the battery is in an abnormal state.
4. The system according to claim 2 or 3, wherein the power conversion module comprises an AC/DC converter for rectifying AC power output by the power grid into DC power to charge a battery of the automobile chassis to a full SOC of 100%; and the system is also used for inverting a direct current power supply output by the battery of the automobile chassis into an alternating current power supply to discharge the power grid to the SOC 0%.
5. The system of claim 3, wherein the data acquisition module comprises a data acquisition unit master control and a data acquisition unit slave control, and the data acquisition unit slave control is electrically connected with the battery of the automobile chassis and is used for acquiring the state information of each single battery cell in the battery of the automobile chassis;
the data collector master control is electrically connected with the data collector slave control and the battery control module, is used for sending the state information collected by the data collector slave control to the master control module, and is also used for controlling the battery control module to cut off the connection between the battery of the automobile chassis and the power supply conversion module when the battery is collected to be in an abnormal condition.
6. The system of claim 5, wherein the data acquisition unit is connected to each single battery cell in the battery of the automobile chassis through a sampling line after disconnecting the data acquisition connector and the main power line of the primary battery module, and calculates state information of each single battery cell corresponding to the sampling line and current information of the battery system according to the data acquired by the sampling line.
7. The system of claim 1, wherein the main control module is further configured to calculate a capacity, a charge-discharge temperature, a charge-discharge efficiency, and an internal resistance of each cell of a battery system of the automobile chassis according to the state information of each cell in the battery system of the automobile chassis and the current information of the battery system;
calculating the battery health degree of each single battery cell according to the state information, the current information of the battery system, the capacity of the battery system of the automobile chassis, the charge-discharge temperature, the charge-discharge efficiency and the internal resistance of each single battery cell;
and judging the service condition of the battery of the automobile chassis according to the battery health degree of each single battery cell.
8. The system of claim 7, wherein the main control module determines the usage of the battery of the automobile chassis according to the battery health of each cell, and the determination includes:
when the battery health degree of each single battery cell is greater than or equal to a first threshold value, judging that the battery of the automobile chassis is in a normal use state;
when the battery health degree of the single battery core is smaller than a second threshold value, judging that the corresponding single battery core is in a state to be repaired;
and when the health degree of the batteries with the number of the monomer battery cores larger than the preset number is smaller than a first threshold value, judging that the batteries of the automobile chassis are in a state to be replaced.
9. The system of claim 7 or 8, further comprising a display module electrically connected to the main control module, and configured to display status information of each battery cell in the vehicle chassis, current information of the battery system, and usage of a battery of the vehicle chassis.
10. The system of claim 2, wherein the communication conversion module comprises a communication converter, and is connected with the main control module through a network cable, the data acquisition module through a CAN bus or a 485 bus, and the power conversion module through a 485 bus.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911425880.6A CN111175667A (en) | 2019-12-31 | 2019-12-31 | Battery test system |
| AU2020202736A AU2020202736A1 (en) | 2019-12-31 | 2020-01-14 | Battery Test System |
| PCT/CN2020/071876 WO2021134829A1 (en) | 2019-12-31 | 2020-01-14 | Battery testing system |
| JP2020526284A JP2022519956A (en) | 2019-12-31 | 2020-01-14 | Battery test system |
| SG11202003647SA SG11202003647SA (en) | 2019-12-31 | 2020-01-14 | Battery Test System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911425880.6A CN111175667A (en) | 2019-12-31 | 2019-12-31 | Battery test system |
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|---|---|
| CN111175667A true CN111175667A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911425880.6A Pending CN111175667A (en) | 2019-12-31 | 2019-12-31 | Battery test system |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP2022519956A (en) |
| CN (1) | CN111175667A (en) |
| AU (1) | AU2020202736A1 (en) |
| SG (1) | SG11202003647SA (en) |
| WO (1) | WO2021134829A1 (en) |
Cited By (1)
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| CN110103730A (en) * | 2018-01-10 | 2019-08-09 | 深圳市普兰德储能技术有限公司 | A kind of electric vehicle power supply system and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115840153A (en) * | 2022-12-06 | 2023-03-24 | 北汽福田汽车股份有限公司 | Battery detection method, device storage medium and electronic equipment |
| CN115877221B (en) * | 2022-12-21 | 2023-11-10 | 广州辰创科技发展有限公司 | Power supply health state early warning platform |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2022519956A (en) | 2022-03-28 |
| AU2020202736A1 (en) | 2021-07-15 |
| SG11202003647SA (en) | 2021-08-30 |
| WO2021134829A1 (en) | 2021-07-08 |
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