CN218886002U - Battery management system testing device and testing system - Google Patents
Battery management system testing device and testing system Download PDFInfo
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- CN218886002U CN218886002U CN202223091880.7U CN202223091880U CN218886002U CN 218886002 U CN218886002 U CN 218886002U CN 202223091880 U CN202223091880 U CN 202223091880U CN 218886002 U CN218886002 U CN 218886002U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a battery management system testing arrangement and test system, battery management system testing arrangement includes: the battery management system comprises a battery simulation board card used for being connected to a battery monitoring end of the battery management system, an input board card used for being connected to a signal output end of the battery management system, an output board card used for being connected to a signal input end of the battery management system, a first output power source used for being connected to a main control power end of the battery management system, a second output power source used for being connected to a total battery voltage acquisition end of the battery management system, a resistor board card used for being connected to the main control power end of the battery management system and the total battery voltage acquisition end of the battery management system respectively, and an upper computer, wherein the battery simulation board card, the input board card, the output board card, the first output power source, the second output power source and the resistor board card are in communication connection with the upper computer respectively. The utility model discloses avoid causing battery management system's trouble.
Description
Technical Field
The utility model relates to a relevant technical field of vehicle, especially a battery management system testing arrangement and test system.
Background
A Battery Management System (BMS) is used to intelligently manage and monitor the Battery of a vehicle, prevent the Battery from being overcharged and overdischarged, and prolong the service life of the Battery.
Due to the importance of battery management systems in vehicles, the prior art provides test devices or test systems for battery management systems. The testing device of the battery management system provides a low-voltage power supply for a main control power supply end of the battery management system, and simultaneously provides a high-voltage power supply for a battery main power supply acquisition end of the battery management system in order to simulate a battery pack.
However, a short circuit may occur between the high voltage power supply and the low voltage power supply, and when the short circuit occurs, the high voltage output by the high voltage power supply may cause a failure or even damage to the main control device of the battery management system.
Therefore, the testing device of the battery management system in the prior art does not perform high-voltage protection between the high-voltage power supply and the low-voltage power supply, and has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a testing device and a testing system for a battery management system, which are used for solving the technical problems that the testing device for the battery management system in the prior art does not perform high-voltage protection between the second output power supply and the first output power supply and has potential safety hazards.
The utility model provides a battery management system testing arrangement, include: the battery simulation integrated circuit board is used for being connected to a battery monitoring end of a battery management system, the input integrated circuit board is used for being connected to a signal output end of the battery management system, the output integrated circuit board is used for being connected to a signal input end of the battery management system, the first output power source is used for being connected to a main control power end of the battery management system, the second output power source is used for being connected to a total battery voltage acquisition end of the battery management system, the resistor integrated circuit board is used for being connected to the main control power end of the battery management system and the total battery voltage acquisition end of the battery management system respectively, and the upper computer, the battery simulation integrated circuit board is connected with the input integrated circuit board, the output integrated circuit board is connected with the first output power source, the second output power source and the resistor integrated circuit board are respectively connected with the upper computer in a communication mode.
Further, the input board card comprises an analog input board card used for receiving analog signals from the battery management system, and the analog input board card is in communication connection with the upper computer.
Further, the input board card comprises a digital input board card used for receiving digital signals from the battery management system, and the digital input board card is in communication connection with the upper computer.
Furthermore, the output board card comprises an analog output board card used for outputting analog signals to the battery management system, and the analog output board card is in communication connection with the upper computer.
Further, the output board card comprises a digital output board card used for outputting digital signals to the battery management system, and the digital output board card is in communication connection with the upper computer.
Further, still including the temperature signal simulation integrated circuit board that is used for being connected to battery management system's temperature acquisition end, temperature signal simulation integrated circuit board with host computer communication connection.
Further, still include: the battery pack current simulation board is used for being connected to a battery current acquisition end of the battery management system and is in communication connection with the upper computer.
Further, still include: the relay board cards are used for being connected to a plurality of acquisition ends of the battery management system respectively and are in communication connection with the upper computer.
Still further, still include the bus communication device that is used for being connected to the bus communication end of battery management system, and battery simulation integrated circuit board, input integrated circuit board, output integrated circuit board respectively through bus communication device with host computer communication connection.
The utility model provides a battery management system's test system, including battery management system and as before battery management system testing arrangement, battery simulation integrated circuit board with battery management system's battery monitoring end is connected, the input integrated circuit board with battery management system's signal output part connects, the output integrated circuit board with battery management system's signal input part connects, first output power source is connected with battery management system's main control power end, the second output power source is connected with battery management system's battery total voltage acquisition end, the resistance integrated circuit board is connected with battery management system's main control power end and battery management system's battery total voltage acquisition end respectively.
The utility model discloses a battery simulation integrated circuit board that sets up respectively with battery management system and upper computer connection, the input integrated circuit board, the output integrated circuit board, first output power, second output power, thereby test battery management system by the host computer control, and connect the resistance integrated circuit board between battery management system's main control power end and battery management system's battery total voltage acquisition end, thereby pass through the resistance integrated circuit board, realize the insulation between battery management system's main control power end and battery management system's battery total voltage acquisition end, avoid causing battery management system's trouble.
Drawings
Fig. 1 is a schematic diagram of a device for testing a battery management system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a battery simulation board according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a testing apparatus for a battery management system according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a battery pack current simulation board according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a relay board in another embodiment of the present invention;
fig. 6 is a system diagram of a testing system of a battery management system according to an embodiment of the present invention;
fig. 7 is a system diagram of a testing system of a battery management system according to another embodiment of the present invention.
Description of the marks
1-battery simulation board card; 101-a battery channel; 2, inputting a board card; 21-simulating an input board card; 22-digital input board card; 3, outputting a board card; 31-analog output board card; 32-digital output board card; 4-a first output power supply; 5-a second output power supply; 6, a resistor board card; 7-an upper computer; 8-a battery management system; 81-collection end; 9-temperature signal simulation board card; 10-battery pack current simulation board card; 1001-resistance; 1002-a high-precision programmable power supply; 11-a relay board card; 1101-relay channel; 12-bus communication means.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
A Battery Management System (BMS) is used to intelligently manage and monitor the Battery of a vehicle, prevent the Battery from being overcharged and overdischarged, and prolong the service life of the Battery.
Due to the importance of battery management systems in vehicles, the prior art provides test devices or test systems for battery management systems. The testing device of the battery management system provides a low-voltage power supply for a main control power supply end of the battery management system, and simultaneously provides a high-voltage power supply for a battery main power supply acquisition end of the battery management system in order to simulate a battery pack.
However, a short circuit may occur between the high voltage power supply and the low voltage power supply, and when the short circuit occurs, the high voltage output by the high voltage power supply may cause a failure or even damage to the main control device of the battery management system.
Therefore, the testing device of the battery management system in the prior art does not perform high-voltage protection between the high-voltage power supply and the low-voltage power supply, and has potential safety hazards.
In order to solve the technical problem, the utility model provides a battery management system testing arrangement and test system.
Fig. 1 shows a schematic diagram of a device for testing a battery management system of the present invention, which includes: the battery simulation integrated circuit board comprises a battery simulation integrated circuit board 1 used for being connected to a battery monitoring end of a battery management system 8, an input integrated circuit board 2 used for being connected to a signal output end of the battery management system 8, an output integrated circuit board 3 used for being connected to a signal input end of the battery management system 8, a first output power source 4 used for being connected to a main control power end of the battery management system 8, a second output power source 5 used for being connected to a total battery voltage acquisition end of the battery management system 8, a resistor integrated circuit board 6 used for being connected to a main control power end of the battery management system 8 and a total battery voltage acquisition end of the battery management system 8 respectively, and an upper computer 7, the battery simulation integrated circuit board 1, the input integrated circuit board 2, the output integrated circuit board 3, the first output power source 4, the second output power source 5 and the resistor integrated circuit board 6 are in communication connection with the upper computer 7 respectively.
The utility model discloses a battery simulation integrated circuit board that sets up respectively with battery management system and upper computer connection, the input integrated circuit board, the output integrated circuit board, first output power, second output power, thereby test battery management system by the host computer control, and connect the resistance integrated circuit board between battery management system's main control power end and battery management system's battery total voltage acquisition end, thereby pass through the resistance integrated circuit board, realize the insulation between battery management system's main control power end and battery management system's battery total voltage acquisition end, avoid causing battery management system's trouble.
Specifically, in use, as shown in fig. 6, the battery management system test device is connected to the battery management system 8.
Wherein:
the battery simulation board card 1 is a battery simulator and is used for simulating single batteries in a battery pack. The voltage of the unit cell is supplied to the battery management system 8. The upper computer 7 sets the output voltage and the enable output state of the simulated single battery, and feeds back the output voltage, the enable output state and the power consumption current of the simulated single battery to the upper computer 7.
The battery simulation board card 1 can adopt the existing battery simulation board card.
As shown in fig. 2, in one embodiment, the battery simulation board 1 includes one or more battery channels 101 connected in series or in parallel, each battery channel 101 simulates a single battery, the upper computer 7 sets the voltage and the enable output state of the battery channel, and feeds back the voltage, the enable output state and the power consumption current of the battery channel to the upper computer 7.
Specifically, each battery channel 101 may adopt an existing adjustable power supply circuit, for example, the battery channel 101 may include an adjustable power supply chip in communication connection with the upper computer 7, and the upper computer 7 controls an output voltage and an enable output state of the adjustable power supply chip.
The input board card 2 is used for being connected to a signal output end of the battery management system 8 so as to receive an output signal of the battery management system 8 and send the received output signal of the battery management system 8 to the upper computer 7.
The output board card 3 is used for being connected to the signal input end of the battery management system 8, the upper computer 7 sends signals to the output board card 3, and the output board card 3 sends the signals to the battery management system 8.
The first output power source 4 is used for connecting to a main control power source end of the battery management system 8 so as to provide power supply for a main control device of the battery management system 8.
In one embodiment, the first output power source 4 is a first programmable power source, and the first output power source 4 outputs a low voltage to the main control power source terminal of the battery management system 8.
The second output power supply 5 is used for being connected to a total battery voltage collecting end of the battery management system 8, outputting voltage to the total battery voltage collecting end of the battery management system 8, and simulating the total voltage of the battery pack.
In one embodiment, the second output power source 5 is a second programmable power source, and the second output power source 5 outputs a high voltage to the total battery voltage collecting terminal of the battery management system 8.
The resistor board card 6 comprises a high-voltage resistor, the high-voltage resistor is respectively connected to a main control power supply end of the battery management system 8 and a total battery voltage acquisition end of the battery management system 8, and insulation between the main control power supply end of the battery management system 8 and the total battery voltage acquisition end of the battery management system 8 is guaranteed.
In one embodiment, the upper computer 7 controls the resistance value and the enabled output state of the resistor board card 6, and the resistor board card 6 feeds back the resistance value and the enabled output state.
In one embodiment, the resistor board 6 is a program-controlled resistor board, the upper computer 7 sends a message to the program-controlled resistor board, and the program-controlled resistor board controls the resistance value and the enable output state according to the received message and feeds back the resistance value and the enable output state to the upper computer 7.
In one embodiment, the resistor board card 6 includes an adjustable resistor, and the upper computer 7 obtains the resistance value and the enable output state of the adjustable resistor.
When the battery management system testing device is used, the battery management system testing device is connected with the battery management system, the battery management system testing device is controlled through the upper computer 7, and relevant information of the battery management system is fed back to the upper computer 7 through the battery management system testing device.
The utility model discloses a battery simulation integrated circuit board that sets up respectively with battery management system and upper computer connection, the input integrated circuit board, the output integrated circuit board, first output power, second output power, thereby test battery management system by the host computer control, and connect the resistance integrated circuit board between battery management system's main control power end and battery management system's battery total voltage acquisition end, thereby pass through the resistance integrated circuit board, realize the insulation between battery management system's main control power end and battery management system's battery total voltage acquisition end, avoid causing battery management system's trouble.
Fig. 3 is a schematic diagram of a device for testing a battery management system according to the present invention, which includes: the battery simulation board card comprises a battery simulation board card 1 for being connected to a battery monitoring end of a battery management system 8, an input board card 2 for being connected to a signal output end of the battery management system 8, an output board card 3 for being connected to a signal input end of the battery management system 8, a first output power source 4 for being connected to a main control power source end of the battery management system 8, a second output power source 5 for being connected to a battery total voltage acquisition end of the battery management system 8, a resistor board card 6 for being respectively connected to a main control power source end of the battery management system 8 and a battery total voltage acquisition end of the battery management system 8, a temperature signal simulation board card 9 for being connected to a temperature acquisition end of the battery management system 8, a battery pack current simulation board card 10 for being connected to a battery current acquisition end of the battery management system 8, relay board cards 11 for being respectively connected to a plurality of acquisition ends of the battery management system 8, a bus communication device 12 for being connected to a bus communication end of the battery management system 8, and an upper computer 7, wherein the battery simulation board card 1, the input board card 2, the output board card 3, the first output power source 4, the second output power source 5, the resistor board card 6, the battery pack current simulation board card 9, the battery pack current simulation board card 10 and the relay board card 7 are respectively connected to the upper computer communication device 12;
the input board card 2 comprises an analog input board card 21 used for receiving analog signals from the battery management system 8 and a digital input board card 22 used for receiving digital signals from the battery management system 8, the analog input board card 21 is in communication connection with the upper computer 7, and the digital input board card 22 is in communication connection with the upper computer 7;
output integrated circuit board 3 is including being used for to battery management system 8 output analog signal's analog output integrated circuit board 31, be used for to battery management system 8 output digital signal's digital output integrated circuit board 32, analog output integrated circuit board 31 with host computer 7 communication connection, digital output integrated circuit board 32 with host computer 7 communication connection.
The embodiment solves the problems of poor portability, difficulty in multi-platform multiplexing, high assembly integration and difficulty in independent use of a test system in the prior art by providing a plurality of test board cards.
Specifically, the bus communication device 12 is preferably a communication device provided with bus software. For example, a communication device of a Controller Area Network Open Environment (CANoe) is installed.
The bus communication device 12 preferably communicates with the battery simulation board 1, the input board 2, the output board 3, the first output power source 4, the second output power source 5, the resistance board 6, the temperature signal simulation board 9, the battery pack current simulation board 10, the relay board 11, and the battery management system 8 through a Controller Area Network (CAN) bus. The Bus communication device 12 preferably communicates with the upper computer 7 via a Universal Serial Bus (USB).
The battery simulation integrated circuit board 1 the input integrated circuit board 2 the output integrated circuit board 3 the first output power source 4 the second output power source 5 and the resistance integrated circuit board 6 the temperature signal simulation integrated circuit board 9 the battery package electric current simulation integrated circuit board 10 the relay integrated circuit board 11 passes through hard line output and gathers through the hard line with battery management system 8.
As an example, the bus communication device 12 is in communication connection with the battery management system 8 through a vehicle controller area network, a fast charging controller area network, and a debugging controller area network, and is in communication connection with the battery simulation board 1, the input board 2, the output board 3, the first output power source 4, the second output power source 5, the resistor board 6, the temperature signal simulation board 9, the battery pack current simulation board 10, and the relay board 11 through a test controller area network.
Various test boards in this embodiment are test boards supporting communication program control of the controller area network. Various test board cards of this embodiment can all adopt current test board card to realize. Test plate cards include, but are not limited to: the battery simulation integrated circuit board 1, the input integrated circuit board 2, the output integrated circuit board 3, the first output power source 4, the second output power source 5, the resistance integrated circuit board 6, the temperature signal simulation integrated circuit board 9, the battery package current simulation integrated circuit board 10, the relay integrated circuit board 11.
(1) The battery simulation board card 1, namely the battery simulator: the upper computer 7 sets the voltage and the enabling output state of the battery channel of the battery simulation board 1 through the controller area network communication, and the battery simulation board 1 feeds the voltage, the enabling output state and the power consumption current of the battery channel back to the upper computer 7.
(2) The temperature signal simulation board card 9: the temperature signal simulation board card 9 is a program control resistor board card and comprises a program control resistor channel. The upper computer 7 sets the resistance and the enabling output state of the resistance channel through the controller area network communication, and the temperature signal simulation board card 9 feeds back the resistance and the enabling output state of the resistance channel to the upper computer 7. The temperature signal simulation board card 9 is connected to a temperature acquisition end of the battery management system 8. The temperature acquisition end of the temperature acquisition circuit of the battery management system 8 is connected with the thermistor of the battery pack, and the voltage of the thermistor of the battery pack is acquired by dividing the resistance value of the thermistor of the temperature acquisition end, so that the measurement temperature of the battery pack is determined. The temperature signal simulation board card 9 of this embodiment outputs different resistance values to the thermistor of simulation battery package is the resistance value under different temperatures, realizes the test of battery management system to the temperature detection function of battery package.
(3) The analog input board card 21: and feeding back the input voltage of the battery management system 8 analog input channel to the upper computer 7 through controller area network communication.
As an example, the analog input board 21 collects a voltage value output by the battery management system 8, and the voltage value may be a power supply voltage of other sensors of the battery management system 8.
In this embodiment, the analog input board card is arranged to acquire the analog signal of the battery management system.
(4) The analog output board card 31: the upper computer 7 sets the output voltage of the output channel of the analog output board card 31 through controller area network communication, and the analog output board card 31 feeds back the output voltage of the analog output channel to the upper computer 7.
As an example, the analog output board 31 outputs a variable voltage to the battery management system 8 according to the control of the host computer 7. The battery management system 8 can calculate the current value converted by the hall sensor from the voltage.
This embodiment is through setting up the analog output integrated circuit board to controllable analog signal is exported to the battery management system.
(5) Digital input board 22: the input level input by the battery management system 8 through a digital input channel is fed back to the upper computer 7 through the controller domain network communication, and the rising edge or the falling edge can automatically feed back.
In this embodiment, the digital input board card is arranged to acquire the digital signal of the battery management system.
(6) Digital output board 32: the upper computer 7 sets the output level of the digital output channel of the digital output board card 32 through the controller domain network channel, and the digital output board card 32 feeds back the output level of the digital output channel to the upper computer 7.
As an example, the digital signal is a high-low level or Pulse width modulation (PMW) signal.
This embodiment is through setting up digital output integrated circuit board to battery management system output controllable digital signal.
(7) First output power source 4: the first output power supply 4 is preferably a first programmable power supply that outputs a low voltage. The upper computer 7 sets the output voltage, the output current and the enabled output state of the first output power supply 4 through the controller domain network communication, and the first output power supply 4 feeds back the output voltage, the output current and the enabled output state of the first output power supply 4 to the upper computer.
The embodiment sets the first output power supply to supply power to the main control device of the battery management system.
(8) Second output power supply 5: the second output power supply is preferably a second programmable power supply outputting a high voltage. The upper computer 7 sets the output voltage and the enabled output state of the second output power supply 5 through the controller domain network channel, and the second output power supply 5 feeds back the output voltage and the enabled output state of the second output power supply 5 to the upper computer 7;
(9) The resistance board card 6: the resistor card 6 is preferably a programmable high voltage resistor card. The upper computer 7 sets the resistance and the enabling output state of the high-voltage resistance channel of the resistance board card 6 through controller area network communication, and the resistance board card 6 feeds back the resistance and the enabling output state of the high-voltage resistance channel to the upper computer 7.
(10) The battery pack current simulation board card 10: the battery pack current simulation board 10 is preferably a shunt board to simulate the output current of the battery pack. As shown in fig. 4, the battery pack current simulation board 10, i.e., the shunt board, includes a resistor 1001 with a small resistance value and a high-precision programmable power supply 1002, and the battery management system 8 obtains a corresponding current according to a voltage value at two ends of the resistor 1001. The upper computer 7 sets the maximum output voltage of the shunt channel and the current value corresponding to the maximum output voltage through the controller area network communication, wherein the setting of the current value can be realized by outputting a voltage value matched with the maximum output voltage.
The present embodiment simulates the board card by providing the battery pack current to simulate the total current of the battery pack to the battery management system.
(11) The relay board card 11: the relay board card 11 includes a plurality of relay channels 1101, and the relay board card 11 is connected to a plurality of acquisition terminals 81 of the battery management system 8, respectively. The upper computer 7 sets the on-off state of the relay channel 1101 through the controller area network communication, and the relay board card 11 feeds back the on-off state of the relay channel 1101. Each relay channel 1101 of the relay board card 11 is provided with a relay controlled by the upper computer 7. As shown in fig. 5, the relay channel 1101 is connected to the acquisition ends of different acquisition channels of the battery management system 8, so as to control the on/off of the different acquisition channels of the battery management system.
This embodiment satisfies the test demand through providing the break-make of relay integrated circuit board in order to control the different collection passageways of battery management system.
As shown in fig. 6 be the utility model relates to a system schematic of battery management system's test system, including battery management system 8 and as before battery management system testing arrangement, battery simulation integrated circuit board 1 with battery management system 8's battery monitoring end is connected, input integrated circuit board 2 with battery management system 8's signal output part connects, output integrated circuit board 3 with battery management system 8's signal input part connects, first output power supply 4 is connected with battery management system 8's master control power end, second output power supply 5 is connected with battery management system 8's battery total voltage acquisition end, resistance integrated circuit board 6 power end is connected with battery management system 8's master control power end and battery management system 8's battery total voltage acquisition end respectively.
The utility model discloses a set up respectively with battery management system and upper computer connection's battery simulation integrated circuit board, the input integrated circuit board, the output integrated circuit board, first output, second output, thereby test battery management system by the host computer control, and connect the resistance integrated circuit board between battery management system's main control power end and battery management system's battery total voltage acquisition end, thereby pass through the resistance integrated circuit board, realize the insulation between battery management system's main control power end and battery management system's the battery total voltage acquisition end, avoid causing battery management system's trouble.
As shown in fig. 7 be the utility model relates to a battery management system's test system's system schematic diagram, including battery management system 8 and as before battery management system testing arrangement, battery simulation integrated circuit board 1 with battery management system 8's battery monitoring end is connected, input integrated circuit board 2 with battery management system 8's signal output part connects, output integrated circuit board 3 with battery management system 8's signal input part connects, first output power source 4 is connected with battery management system 8's master control power end, second output power source 5 is connected with battery management system 8's battery total voltage acquisition end, resistance integrated circuit board 6 is connected with battery management system 8's master control power end and battery management system 8's battery total voltage acquisition end respectively, and temperature signal simulation integrated circuit board 9 is connected with battery management system 8's temperature acquisition end, battery package electric current simulation integrated circuit board 10 is connected with battery management system 8's battery electric current acquisition end, relay 11 is connected with a plurality of acquisition ends of battery management system 8 respectively, bus communication device 12 is connected with battery management system 8's bus communication end.
Specifically, the bus communication device 12 may communicate with each test board and the battery management system 8 using a controller area network bus.
During testing, each independent channel of the test board card is programmed through a specific message, taking the battery simulation board card 1 as an example, the output to be controlled or the data to be fed back (such as SetOutputVoltage or GetOutputVoltage) is selected through the signal RegAddr, the data is selectively written or read through the signal Option, then the output value to be set is written, and the data does not need to be set if the data is read.
And for the output required to be set by each channel of the test board card, establishing a corresponding system variable, and monitoring the change of the system variable through a CAPL script to send a corresponding control message.
And for the acquisition channel of the test board card, a timer is used for sending a message for reading data every 10ms to acquire the acquired data.
The test board cards of all controller area network communication program control are integrated into a test cabinet, controller area network communication lines of all the test board cards are connected to a test controller area network communication loop, and the upper computer 7 is connected to the test controller area network through the bus communication device 12. The test engineer can use the upper computer 7 to perform program control on the output channels of various test board cards through the bus communication device 12, and can also read and analyze input signals of various test board cards.
Controller area network communication is the most common communication mode for automotive engineering, and is supported by almost all test equipment and tools of a battery management system. In the embodiment, various test board cards supporting the communication program control of the controller area network are used as the basis of the test system, so that the test system can be compatible with different test platforms and can also be independently used in a decentralized manner.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A battery management system testing apparatus, comprising: the battery simulation integrated circuit board is used for being connected to a battery monitoring end of a battery management system, the input integrated circuit board is used for being connected to a signal output end of the battery management system, the output integrated circuit board is used for being connected to a signal input end of the battery management system, the first output power source is used for being connected to a main control power end of the battery management system, the second output power source is used for being connected to a total battery voltage acquisition end of the battery management system, the resistor integrated circuit board is used for being connected to the main control power end of the battery management system and the total battery voltage acquisition end of the battery management system respectively, and the upper computer, the battery simulation integrated circuit board is connected with the input integrated circuit board, the output integrated circuit board is connected with the first output power source, the second output power source and the resistor integrated circuit board are respectively connected with the upper computer in a communication mode.
2. The battery management system testing device of claim 1, wherein the input board comprises an analog input board for receiving analog signals from the battery management system, the analog input board being communicatively connected to the upper computer.
3. The battery management system testing device of claim 1, wherein the input board comprises a digital input board for receiving digital signals from the battery management system, the digital input board being communicatively connected to the upper computer.
4. The battery management system testing device of claim 1, wherein the output board comprises an analog output board for outputting analog signals to the battery management system, and the analog output board is in communication connection with the upper computer.
5. The battery management system testing device of claim 1, wherein the output board comprises a digital output board for outputting digital signals to the battery management system, and the digital output board is in communication connection with the upper computer.
6. The battery management system testing device of claim 1, further comprising a temperature signal simulation board card for connecting to a temperature acquisition end of the battery management system, wherein the temperature signal simulation board card is in communication connection with the upper computer.
7. The battery management system testing device of claim 1, further comprising: the battery pack current simulation board is used for being connected to a battery current acquisition end of the battery management system and is in communication connection with the upper computer.
8. The battery management system testing device of claim 1, further comprising: the relay board cards are used for being connected to a plurality of acquisition ends of the battery management system respectively and are in communication connection with the upper computer.
9. The battery management system testing device of any one of claims 1 to 8, further comprising a bus communication device for connecting to a bus communication terminal of a battery management system, wherein the battery simulation board, the input board and the output board are respectively in communication connection with the upper computer through the bus communication device.
10. The test system of the battery management system is characterized by comprising the battery management system and the battery management system test device as claimed in any one of claims 1 to 9, wherein the battery simulation board card is connected with a battery monitoring end of the battery management system, the input board card is connected with a signal output end of the battery management system, the output board card is connected with a signal input end of the battery management system, the first output power supply is connected with a main control power supply end of the battery management system, the second output power supply is connected with a total battery voltage acquisition end of the battery management system, and the resistor board card is respectively connected with the main control power supply end of the battery management system and the total battery voltage acquisition end of the battery management system.
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| CN202223091880.7U CN218886002U (en) | 2022-11-16 | 2022-11-16 | Battery management system testing device and testing system |
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