CN213457287U - Battery management system test system - Google Patents
Battery management system test system Download PDFInfo
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- CN213457287U CN213457287U CN202022640808.XU CN202022640808U CN213457287U CN 213457287 U CN213457287 U CN 213457287U CN 202022640808 U CN202022640808 U CN 202022640808U CN 213457287 U CN213457287 U CN 213457287U
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 41
- 239000007924 injection Substances 0.000 claims abstract description 41
- 230000003750 conditioning effect Effects 0.000 claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000004044 response Effects 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
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Abstract
The utility model discloses a battery management system test system, which belongs to the technical field of battery management, and comprises a simulation detection unit, a fault injection unit and a signal conditioning unit which are respectively connected with a battery management system, wherein the simulation detection unit, the fault injection unit and the signal conditioning unit are powered by a power supply unit; the simulation detection unit internally comprises a controller, a battery simulator board card and a data acquisition card, wherein the battery simulator board card is used for simulating a battery output signal, and the data acquisition card is used for acquiring a real-time signal of the battery management system; the fault injection unit is used for controlling the fault of the battery management system, and the data acquisition card is used for acquiring a response signal of the battery management system. Whether the battery management system can normally manage the power supply can be detected by outputting a simulated battery signal through the battery simulator board card, and the response when the battery management system is in fault can be detected through the fault injection unit, so that the detection is more comprehensive.
Description
Technical Field
The utility model relates to a battery management technical field, in particular to battery management system test system.
Background
With the increasing environmental awareness, electric vehicles are more and more favored by people, and a Battery Electric Vehicle (BEV) is a vehicle-mounted electric vehicle (electric vehicle) which is driven by a motor to run with low energy consumption and little environmental pollution, so that the electric vehicle will become a main travel tool in the future. A battery is a main power source of an electric vehicle, and a Battery Management System (BMS) is a system for managing the battery, and generally has a function of measuring a voltage of the battery to prevent or avoid abnormal conditions such as over-discharge, over-charge, and over-temperature of the battery, so that accuracy and stability of the function of the battery management system are important, and various performance tests of the battery management system are required.
The traditional battery management system test generally adopts a simulation model to simulate the output signal of the battery of the electric automobile and collect the processing signal of the battery management system, so that whether each function of the battery management system is normal or not is tested, but the test is single, when the battery management system is actually used, a control fault and a sensor fault also occur, and the performance of the battery management system cannot be comprehensively mastered through a single test mode.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery management system test system just in order to solve the problem that above-mentioned battery management system's test is single can't detect out battery management system's performance comprehensively, has test convenient and fast, but the response condition of simulated fault signal detection battery management system makes the test truer and more reliable, satisfies the advantage of in-service use demand.
The utility model discloses a following technical scheme realizes above-mentioned mesh, a battery management system test system, including emulation detecting element, trouble injection unit and the signal conditioning unit who is connected with battery management system respectively, emulation detecting element, trouble injection unit and signal conditioning unit are supplied power by the power supply unit;
the simulation detection unit internally comprises a controller, a battery simulator board card and a data acquisition card, wherein the battery simulator board card is used for simulating a battery output signal, and the data acquisition card is used for acquiring a real-time signal of the battery management system;
the fault injection unit is used for controlling the fault of the battery management system, and the data acquisition card is used for acquiring a response signal of the battery management system.
Preferably, the fault injection unit comprises an actuator fault injection unit and a sensor fault injection unit, the actuator fault injection unit is connected with a control module of the battery management system, and the sensor fault injection unit is connected with a signal acquisition module of the battery management system.
Preferably, the actuator fault injection and the sensor fault injection both control the short circuit and the open circuit of the chip pin of the battery management system through an electronic switch.
Preferably, a CAN board card is installed in the simulation detection unit and is connected with the fault injection unit, the signal conditioning unit and the battery management system through a CAN bus.
Preferably, the signal conditioning unit is configured to condition an analog battery signal output by the battery simulator board card into a signal that can be recognized by the battery management system, and the signal conditioning unit includes PWM signal conditioning, analog signal conditioning, and digital signal conditioning.
Preferably, the power supply unit provides 220V/24V/12V power.
Compared with the prior art, the beneficial effects of the utility model are that:
1. whether the battery management system can normally manage the power supply can be detected by outputting a simulated battery signal through the battery simulator board card, and the response of the battery management system during the fault can be detected through the fault injection unit, so that the test of the battery management system is more comprehensive and reliable.
2. The fault injection unit simulates short-circuit and open-circuit faults of an actuator and a sensor of the battery management system through the electronic switch, so that the battery management system is more suitable for actual use scenes, hardware simulation is not prone to error, and simulation accuracy is high.
Drawings
Fig. 1 is a schematic diagram of a frame of a battery management system testing system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a battery management system testing system includes a simulation detection unit, a fault injection unit and a signal conditioning unit, which are respectively connected to a battery management system, wherein the simulation detection unit, the fault injection unit and the signal conditioning unit are powered by a power supply unit, an output signal of a battery is simulated by the simulation detection unit, conditioned by the signal conditioning unit and then output to the battery management system for identification, the battery management system performs management processing according to an input signal, and a signal processed each time is collected by the simulation detection unit, so as to identify whether the battery management system can normally process a battery signal; the simulation detection unit comprises a controller, a battery simulator board card and a data acquisition card, wherein the battery simulator board card is used for simulating a battery output signal, the data acquisition card is used for acquiring a real-time signal of the battery management system, the simulation detection unit comprises a simulation circuit consisting of the controller and a battery simulation board card, and the controller is responsible for controlling the battery simulation board card to simulate the output signal of the battery and processing a response signal of the battery management system acquired by the data acquisition card to judge whether the battery management system is normal or not; the fault injection unit is used for controlling the fault of the battery management system, the data acquisition card is used for acquiring a response signal of the battery management system, the fault injection unit can simulate the fault of the battery management system, the battery management system has the effect of processing the fault when the fault occurs, and the simulation detection unit judges whether the battery management system has the capacity of processing the fault according to the response condition when the fault is processed.
The fault injection unit comprises an actuator fault injection unit and a sensor fault injection unit, the actuator fault injection unit is connected with a control module of the battery management system, the sensor fault injection unit is connected with a signal acquisition module of the battery management system, the actuator fault injection unit and the sensor fault injection unit are respectively in short circuit and open circuit through chip pins of the battery management system controlled by an electronic switch, and the pins of the actuator or the sensor can be controlled by the electronic switch to be in short circuit or open circuit, so that the fault in normal use of the battery management system can be simulated, the capacity of the battery management system for coping with the fault can be tested through the fault, the performance of the battery management system can be comprehensively tested, and the actual use condition can be.
The inside installation CAN integrated circuit board of emulation detecting element through CAN bus connection fault injection unit, signal conditioning unit and battery management system, fault injection unit, signal conditioning unit and battery management system carry out the communication through the CAN bus and connect, and the CAN integrated circuit board makes emulation detecting element CAN possess the ability of connecting the CAN bus, signal conditioning unit is used for conditioning the analog battery signal of battery simulator integrated circuit board output for the signal that CAN supply battery management system discernment, and signal conditioning unit includes that PWM signal conditioning, analog signal conditioning and digital signal condition, power supply unit provides 220V 24V 12V's electric energy.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A battery management system test system is characterized by comprising a simulation detection unit, a fault injection unit and a signal conditioning unit which are respectively connected with a battery management system, wherein the simulation detection unit, the fault injection unit and the signal conditioning unit are powered by a power supply unit;
the simulation detection unit internally comprises a controller, a battery simulator board card and a data acquisition card, wherein the battery simulator board card is used for simulating a battery output signal, and the data acquisition card is used for acquiring a real-time signal of the battery management system;
the fault injection unit is used for controlling the fault of the battery management system, and the data acquisition card is used for acquiring a response signal of the battery management system.
2. The battery management system test system of claim 1, wherein the fault injection unit comprises an actuator fault injection and a sensor fault injection, the actuator fault injection is connected with a control module of the battery management system, and the sensor fault injection is connected with a signal acquisition module of the battery management system.
3. The battery management system test system of claim 2, wherein the actuator fault injection and the sensor fault injection are controlled by an electronic switch to short and open the pins of the battery management system chip.
4. The battery management system test system of claim 1, wherein a CAN board is installed inside the simulation detection unit, and the fault injection unit, the signal conditioning unit and the battery management system are connected through a CAN bus.
5. The battery management system test system of claim 1, wherein the signal conditioning unit is configured to condition an analog battery signal output by the battery simulator board card into a signal recognizable by the battery management system, and the signal conditioning unit includes PWM signal conditioning, analog signal conditioning, and digital signal conditioning.
6. The battery management system test system of claim 1, wherein the power supply unit provides 220V/24V/12V power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022640808.XU CN213457287U (en) | 2020-11-16 | 2020-11-16 | Battery management system test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022640808.XU CN213457287U (en) | 2020-11-16 | 2020-11-16 | Battery management system test system |
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| CN213457287U true CN213457287U (en) | 2021-06-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265335A (en) * | 2021-09-18 | 2022-04-01 | 科大国创新能科技有限公司 | Fault injection simulation method for battery cell management chip |
| CN115903740A (en) * | 2022-11-17 | 2023-04-04 | 中国第一汽车股份有限公司 | BMS fault elimination system, battery assembly, electric vehicle and elimination method |
-
2020
- 2020-11-16 CN CN202022640808.XU patent/CN213457287U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265335A (en) * | 2021-09-18 | 2022-04-01 | 科大国创新能科技有限公司 | Fault injection simulation method for battery cell management chip |
| CN114265335B (en) * | 2021-09-18 | 2023-10-13 | 科大国创新能科技有限公司 | Fault injection simulation method for battery cell management chip |
| CN115903740A (en) * | 2022-11-17 | 2023-04-04 | 中国第一汽车股份有限公司 | BMS fault elimination system, battery assembly, electric vehicle and elimination method |
| CN115903740B (en) * | 2022-11-17 | 2024-09-06 | 中国第一汽车股份有限公司 | BMS fault removal system, battery assembly, electric vehicle and removal method |
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