CN213302852U - Test system of controller - Google Patents
Test system of controller Download PDFInfo
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- CN213302852U CN213302852U CN202022558756.1U CN202022558756U CN213302852U CN 213302852 U CN213302852 U CN 213302852U CN 202022558756 U CN202022558756 U CN 202022558756U CN 213302852 U CN213302852 U CN 213302852U
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Abstract
The utility model provides a test system of controller, including operating mode simulator, controller and test rack. The operating mode simulator simulation is used for rightly the controller carries out the test command that tests, and will test command send to the controller, the controller carry out with the operation that test command corresponds and receive at least one by the operational data of controlgear feedback, and will operational data send to operating mode simulator, the operating mode simulator shows operational data with the comparison result of the target operational data that operational data corresponds has realized the test to the controller, promptly the utility model discloses can realize the test to the controller through the test system of controller, need not use real equipment on the vehicle to carry out the test of controller, and then do not have the influence to the security of the equipment on the vehicle, guaranteed the security and the reliability of the equipment on the vehicle.
Description
Technical Field
The utility model relates to a controller test technical field, more specifically say, relate to a test system of controller.
Background
The management controller can acquire the current state of the system and perform corresponding control operation on the controlled equipment, for example, the thermal management controller can collect the running state information of the fuel cell system and control the thermal management equipment to work so as to perform heat dissipation or heating treatment on the fuel cell system. The heat dissipation controller of the electric drive cooling system collects working condition information of the electric drive cooling system, then carries out logic calculation according to a control strategy, and outputs a working instruction for controlling cooling equipment so as to achieve a cooling effect.
Before the controller is used, the controller needs to be tested, in the prior art, after the controller is installed on a vehicle, the controller is tested, at the moment, real equipment on the vehicle is directly used for testing the controller, and under the condition that the controller has a control fault, the accuracy of an output control strategy of the controlled equipment is low, so that the normal operation of a real system on the vehicle and the controlled equipment is influenced.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem who influences the system easily and by the normal operating of controlgear when testing after the controller installation, the utility model provides a test system of controller.
In order to achieve the above object, the utility model provides a following technical scheme:
a test system of a controller comprises the controller and a test bench; a plurality of controlled devices are arranged on the test bench; the controlled devices are connected according to a preset connection relation; the test system also comprises a working condition simulator, and the working condition simulator and the controlled equipment are respectively connected with the controller;
the working condition simulator is used for: simulating a test instruction for testing the controller, sending the test instruction to the controller, receiving the running data of at least one controlled device returned by the controller, and displaying a comparison result of the running data and target running data corresponding to the running data;
the controller is configured to: and executing the operation corresponding to the test instruction, receiving at least one piece of operation data fed back by the controlled equipment, and sending the operation data to the working condition simulator.
Optionally, the input terminal of the controller is further connected to an output terminal of a dc power supply for supplying power to the test bench.
Optionally, the controller comprises a thermal management controller; the controlled device comprises a thermal management device;
the thermal management device comprises: the system comprises a radiator, a water pump, a heater, a thermostat and an expansion water tank;
the first output end of the thermostat is connected with the input end of the radiator, the second output end of the thermostat is connected with the input end of the heater, the output ends of the radiator and the heater are connected with the first input end of the water pump, and the output end of the water pump is connected with the input end of the thermostat; the output end of the expansion water tank is connected with the second input end of the water pump; and the gas output end of the radiator is connected with the gas input end of the expansion water tank.
Optionally, the controller comprises a heat dissipation controller; the controlled device includes a cooling device;
the cooling equipment comprises a water pump, a radiator and a collision water tank; the output end of the water pump is connected with the input end of the radiator; the output end of the radiator is connected with the input end of the water pump; and two ends of the expansion water tank are respectively connected with two ends of the water pump.
Optionally, the operating condition simulator and the controller communicate through a CAN message.
Optionally, the condition simulator includes a display device, and the display device is configured to receive test data input by a user.
Optionally, the controller communicates with a plurality of the controlled devices in the test bench through CAN messages or PWM messages.
Optionally, a cooling liquid is arranged in the expansion tank.
Optionally, a heat dissipation fan is disposed on the heat sink.
Optionally, the condition simulator comprises a processor.
According to the above technical scheme, the utility model provides a test system of controller, including operating mode simulator, controller and test bench. The operating mode simulator simulation is used for rightly the controller carries out the test command that tests, and will test command send to the controller, the controller carry out with the operation that test command corresponds and receive at least one by the operational data of controlgear feedback, and will operational data send to operating mode simulator, the operating mode simulator shows operational data with the comparison result of the target operational data that operational data corresponds has realized the test to the controller, promptly the utility model discloses can realize the test to the controller through the test system of controller, need not use real equipment on the vehicle to carry out the test of controller, and then do not have the influence to the security of the equipment on the vehicle, guaranteed the security and the reliability of the equipment on the vehicle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a test system of a controller according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a test system of a thermal management controller according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a test bench according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a test system of a heat dissipation controller according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another test bench according to an embodiment of 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.
Before the controller is used, the controller needs to be tested, in the prior art, after the controller is installed on a vehicle, the controller is tested, at the moment, real equipment on the vehicle is directly used for testing the controller, and under the condition that the controller has a control fault, the accuracy of an output control strategy of the controlled equipment is low, so that the normal operation of a real system on the vehicle and the controlled equipment is influenced. In addition, the thermal management controller is developed to be directly installed on the whole vehicle for testing, the process is complex, time-consuming and difficult, and therefore a set of test bench needs to be designed to simulate real working conditions.
In order to solve the above technical problems, the inventors have found through research that if a test system of a set of controllers can be designed, the controller can be directly arranged in the test system of the controller, and then the test of the thermal management controller can be realized.
Specifically, in this embodiment, a test system for a thermal management controller of a fuel cell system is provided, which includes a working condition simulator, a controller, and a test bench. The operating mode simulator simulation is used for rightly the controller carries out the test command that tests, and will test command send to the controller, the controller carry out with the operation that test command corresponds and receive at least one by the operational data of controlgear feedback, and will operational data send to operating mode simulator, the operating mode simulator shows operational data with the comparison result of the target operational data that operational data corresponds has realized the test to the controller, promptly the utility model discloses can realize the test to the controller through the test system of controller, need not use real equipment on the vehicle to carry out the test of controller, and then do not have the influence to the security of the equipment on the vehicle, guaranteed the security and the reliability of the equipment on the vehicle.
On the basis of the above embodiments, the embodiment of the present invention provides a test system of a controller, referring to fig. 1, including a controller 2 and a test bench 3; a plurality of controlled devices 1-n are arranged on the test bench 3; a plurality of controlled devices 1-n are connected according to a preset connection relation; the test system also comprises a working condition simulator 1, wherein the working condition simulator 1 and the controlled equipment 1-n are respectively connected with the controller 2;
the working condition simulator 1 is used for: simulating a test instruction for testing the controller 2, sending the test instruction to the controller 2, receiving the running data of at least one controlled device returned by the controller 2, and displaying a comparison result of the running data and target running data corresponding to the running data;
the controller 2 is configured to: and executing the operation corresponding to the test instruction, receiving at least one piece of operation data fed back by the controlled equipment, and sending the operation data to the working condition simulator 1.
In practical application, the utility model has two kinds of use scenes, one is that the controller comprises a thermal management controller; the controlled device includes a thermal management device. The other is that the controller comprises a heat dissipation controller; the controlled device includes a cooling device. Now, the description is given one by one.
1. The controller comprises a thermal management controller; the controlled device includes a thermal management device.
Referring to FIG. 2, a test system may include a thermal management controller 12 and a test bench 13. The thermal management controller 12 in this embodiment is a fuel cell vehicle-type thermal management controller 12, and specifically, the thermal management controller 12 is a control device that collects a working state of a fuel cell system and controls a thermal management device to perform a heat dissipation or heating function according to a control strategy. The fuel cell system in the present embodiment is a power generation device that directly converts chemical energy of a fuel and an oxidant into electrical energy through an electrochemical reaction.
The test bench 13 is a virtual test environment, generally an environment simulating the test of a product with the help of software and hardware tools, and is used to verify the correctness of the tested product.
The test bench 13 is provided with a plurality of heat management devices, and specifically, the heat management devices include a radiator (a radiator fan is installed in the radiator), a water pump (for circulating cooling liquid), a PTC (heater), a thermostat and other devices for heating or cooling.
In practical applications, the thermal management apparatus includes: the radiator (on which a cooling fan is arranged), a water pump, a heater, a thermostat (PTC) and an expansion tank (CT).
The water pump is used for circulating cooling liquid, the expansion water tank is filled with the cooling liquid, and when the cooling liquid is insufficient, the cooling liquid needs to be supplemented into the expansion water tank. A thermostat is a thermostat, usually containing a temperature sensing element that opens and closes the flow of air, gas or liquid by expansion or contraction.
Referring to fig. 3, the plurality of thermal management devices are connected according to a preset connection relationship, specifically, a first output end of the thermostat is connected to an input end of the radiator, a second output end of the thermostat is connected to an input end of the heater, an output end of the radiator and an output end of the heater are connected to a first input end of the water pump, and an output end of the water pump is connected to an input end of the thermostat; the output end of the expansion water tank is connected with the second input end of the water pump; and the gas output end of the radiator is connected with the gas input end of the expansion water tank.
It should be noted that the thermal management controller 12 communicates with the plurality of thermal management devices in the test bench 13 through CAN messages or PWM messages. Specifically, referring to fig. 2, thermal management controller 12 is in message communication with the fan via PWM1 and thermal management controller 12 is in message communication with the heater via CAN.
In practical application, in order to implement a test of thermal management control, the test system further includes a working condition simulator 11, and the working condition simulator 11 and the thermal management device are respectively connected to the thermal management controller 12. The condition simulator 11 in the present embodiment may be a processor provided with a display device or a display unit.
The thermal management controller 12 is connected with the operating condition simulator 11 through a CAN line. The working condition simulator 11 is configured to simulate a test instruction for testing the thermal management controller 12, and more specifically, referring to fig. 2, the working condition simulator 11 is provided with a display device, the display device is provided with a plurality of numerical value input units, such as units of vehicle speed, conductivity, coolant liquid level, pressure signal, inlet water temperature, outlet water temperature, and the like, a user CAN realize the test of the thermal management controller 12 by inputting data in the numerical value input units, in practical application, the user CAN input values of vehicle speed, conductivity, coolant liquid level, pressure signal, inlet water temperature, and outlet water temperature to simulate the current working condition of a fuel cell system on a vehicle, that is, the current environment of the fuel cell system, the display device receives the test data input by the user and sends the test data to the thermal management controller 12 in the form of a CAN message, that is, in this embodiment, the operating condition simulator 11 is used to directly simulate operating conditions such as vehicle speed, ambient temperature, water heating signal, pressure signal, inlet water temperature, outlet water temperature, and the like, and send the operating conditions to the thermal management controller 12 in the form of a CAN message, and the thermal management controller 12 performs logic calculation according to a control strategy, and then outputs PWM or CAN control on the thermal management device. If the operating condition simulator 11 inputs a temperature lower than the allowable temperature range of the stack, the thermal management controller 12 needs to be able to control the ball valve of the thermostat to turn so that the coolant can flow to the PTC heater until the temperature reaches the required range. When the operating condition simulator 11 inputs a temperature higher than the allowable temperature range of the stack, the thermal management controller 12 needs to be able to control the ball valve of the thermostat to turn, so that the cooling liquid can flow to the radiator, and the temperature of the cooling liquid is reduced until the temperature reaches the required range.
After the thermal management controller 12 controls the thermal management device, the thermal management device feeds back the operating rotational speed (e.g., the rotational speed of the fan, the rotational speed of the electric pump) to the thermal management controller 12, and displays the operating speed in the form of a graph in the operating condition output of the operating condition simulator 11. The CAN message in this embodiment may be referred to as a test instruction for testing the thermal management controller 12. After receiving the operation data of the thermal management device such as the rotation speed of the fan, the rotation speed of the electric pump, and the like, the working condition simulator 11 displays the comparison result between the operation data and the target operation data corresponding to the operation data. Referring to fig. 2, the working condition output display shows a broken line comparison graph of the working condition of the expected heat management equipment and the working condition of the actual heat management equipment according to the control strategy, and the correctness of the control strategy is intuitively shown. If the broken lines of the expected result and the actual result are coincident, the control strategy is completely correct and effective, and if the two broken lines have deviation, developers are required to research the reason of the deviation, and timely make adjustments to the control strategy or the thermal management controller 12.
From the above, it can be seen that: the working condition simulator 11 is configured to simulate a test instruction for testing the thermal management controller 12, send the test instruction to the thermal management controller 12, receive operation data of at least one piece of thermal management equipment returned by the thermal management controller 12, and display a comparison result between the operation data and target operation data corresponding to the operation data;
the thermal management controller 12 is configured to execute an operation corresponding to the test instruction, receive operation data fed back by at least one piece of thermal management equipment, and send the operation data to the operating condition simulator 11.
In another embodiment of the utility model, in order to detect thermal management controller 12 and can not normally detect thermal management equipment trouble, the utility model discloses in, set up thermal management controller 12's input still with do test rack 13 power supply's DC power supply's output is connected, comes analog device trouble through DC power supply like this, and then avoids letting thermal management controller 12 detect the destruction of the mode of trouble to equipment through direct damage equipment.
Specifically, the high level of the dc power supply is used to simulate the device failure, and the low level simulates the device being normal, and then the level signal is sent to the controller to verify the failure handling capability of the thermal management controller 12.
It should be noted that, the thermal management controller 12 is provided with a plurality of interfaces for connecting different devices, such as a fan interface, a water pump interface, and the like, and in order to verify which device is, a high-low level signal is input through the dc power supply at the corresponding interface to simulate a fault and a normal state of the device, so that the thermal management controller 12 performs detection.
If the direct-current power supply is used for simulating fan faults, water pump faults and liquid level faults and sending the faults to the thermal management controller 12, the thermal management controller 12 feeds fault results back to the working condition simulator 11 to be displayed, and after the fault occurs, a user determines the fault detection capability of the thermal management controller 12 in a mode that whether the fault can be detected by the thermal management controller 12 or not.
In addition, the conductivity calculation capability of the thermal management controller 12 can also be detected, specifically, the value of the conductivity of the cooling liquid is simulated by using the direct-current power supply and is sent to the thermal management controller 12, the thermal management controller 12 calculates the simulated voltage value into a conductivity value and feeds the conductivity value back to the working condition simulator 11 to be displayed, and a user determines whether the detection of the thermal management controller 12 is normal or not through the conductivity value displayed by the working condition simulator 11 and an ideal conductivity value corresponding to the voltage value.
In addition, the thermal management controller 12 can also receive a water level monitoring result fed back by the expansion tank and feed back the water level monitoring result to the working condition simulator 11, so that the working condition simulator 11 displays the water level monitoring result to analyze the accuracy of the water level monitoring result transmitted by the thermal management controller 12. More specifically, a water level monitoring device is arranged in the expansion water tank, the water level monitoring device can detect the height of the cooling liquid colliding with the water tank, when the height of the cooling liquid is smaller than a preset height, namely when the surplus of the cooling liquid is small, a water level monitoring result can be sent to the thermal management controller 12, the thermal management controller 12 forwards the water level monitoring result to the working condition simulator 11, the working condition simulator 11 displays the water level monitoring result, after a user sees the water level monitoring result, the user actually observes whether the actual liquid level of the cooling liquid in the expansion water tank is too low or not, if the actual liquid level is too low, the thermal management controller 12 is normal, and if the actual liquid level is not too low, the thermal management controller 12 or.
In this embodiment, the working condition simulator 11 simulates working condition signals such as the temperature of the cooling liquid entering and exiting the electric pile and sends the working condition signals to the thermal management controller 12, the thermal management controller 12 performs logic calculation according to a control strategy, and then sends a control instruction to the thermal management device in the test bench 13 in the form of a CAN message or PWM. The working condition simulator 11 collects the real working condition of the heat management device at the same time, compares the real working condition with the working condition expected and judged according to the control strategy, and displays the working condition in a chart form, namely, working condition output. The test bench 13 can simulate fan faults, water pump faults, cooling liquid level faults and cooling liquid conductivity at the same time, and sends the faults to the thermal management controller 12, and the thermal management controller 12 feeds back the faults to the working condition simulator 11 to display the faults.
In the present embodiment, a test system for a thermal management controller 12 of a fuel cell system is provided, and includes a working condition simulator 11, a thermal management controller 12, and a test bench 13. The condition simulator 11 simulates test instructions for testing the thermal management controller 12, and sends the test instruction to the thermal management controller 12, the thermal management controller 12 executes the operation corresponding to the test instruction and receives the operation data fed back by at least one thermal management device, and sends the operating data to the operating condition simulator 11, the operating condition simulator 11 displays the comparison result of the operating data and the target operating data corresponding to the operating data, the test of the thermal management controller 12 is realized, that is, the present invention can test the thermal management controller 12 through the test system of the thermal management controller 12 of the fuel cell system without using real equipment on the vehicle to test the thermal management controller 12, and the safety of the equipment on the vehicle is not affected, and the safety and the reliability of the equipment on the vehicle are ensured.
In addition, the working condition simulator 11 can directly simulate the signals of the whole vehicle, can completely replace partial equipment, and is simple and convenient to operate. In addition, the test bench 13 can completely verify the complete functions of the thermal management controller 12 by only simple equipment, thereby saving resources and development cost.
2. The controller comprises a heat dissipation controller; the controlled device includes a cooling device.
Referring to fig. 4, the test system may include a heat dissipation controller 22 and a test bench 13. The heat dissipation controller 22 in this embodiment is a heat dissipation controller of an electrically driven cooling system, and specifically, the heat dissipation controller 22 collects working condition information of the electrically driven cooling system, performs logical calculation according to a control strategy, and outputs a working instruction for controlling a cooling device, so as to achieve a cooling effect. The electric drive system in the embodiment is a power system which takes a vehicle-mounted power supply as power and provides vehicle running by a motor. An electrically driven cooling system is a device for cooling an electrically driven system.
The test bench 13 is a virtual test environment, generally an environment simulating the test of a product with the help of software and hardware tools, and is used to verify the correctness of the tested product.
The test bench 13 is provided with a plurality of cooling devices, and specifically, the cooling devices include a radiator (a radiator fan is installed in the radiator), a water pump (for circulating cooling liquid), an expansion tank and the like for cooling.
In practical applications, the cooling apparatus comprises: radiator (above install radiator fan), water pump, and expansion tank (CT).
The test bench comprises a direct current power supply for supplying power to the equipment circuit and the heat dissipation controller; a radiator in which a fan is installed; a water pump for circulating the cooling liquid. The expansion water tank is filled with cooling liquid, the heat dissipation controller needs to monitor the liquid level of the expansion water tank, and when the liquid level is too low, an alarm needs to be sent out to prompt that the cooling liquid is supplemented.
Referring to fig. 5, the plurality of cooling devices are connected according to a preset connection relationship, and specifically, an output end of the water pump is connected with an input end of the radiator; the output end of the radiator is connected with the input end of the water pump; and two ends of the expansion water tank are respectively connected with two ends of the water pump.
It should be noted that the heat dissipation controller 22 communicates with the plurality of cooling devices in the test rack 13 through CAN messages or PWM messages. Specifically, referring to fig. 4, the thermal controller 22 is in message communication with the fan and the water pump via PWM 1.
In practical application, in order to realize the test of cooling control, the test system further comprises a working condition simulator 21, and the working condition simulator 21 and the cooling device are respectively connected with the heat dissipation controller 22. The condition simulator 21 in the present embodiment may be a processor provided with a display device or a display unit.
The heat dissipation controller 22 is connected to the operating condition simulator 21 by a CAN line. The working condition simulator 21 is configured to simulate a test instruction for testing the heat dissipation controller 22, and more specifically, referring to fig. 1, the working condition simulator 21 is provided with a display device, the display device is provided with a plurality of numerical input units, such as units of a motor temperature, a motor controller temperature, a device fault, a liquid level state, and the like, a user CAN implement the test of the heat dissipation controller 22 by inputting data in the numerical input units, in practical applications, the user CAN input values of the motor temperature and the motor controller temperature to simulate a current working condition of an electric drive system on a vehicle, that is, an environment where the current electric drive system is located, the display device receives test data input by the user, such as the temperature of the motor or the motor controller input in the working condition simulator is used as an input condition of a control strategy of the heat dissipation controller, and sends the test data to the heat dissipation controller 22 in a CAN message form, that is, in this embodiment, the working condition simulator 21 is used to directly simulate the working conditions such as the motor temperature and the motor controller temperature, and send the working conditions to the heat dissipation controller 22 in the form of a CAN message, and the heat dissipation controller 22 performs logic calculation according to a control strategy, and then outputs PWM or CAN control on the cooling device.
After the heat dissipation controller 22 controls the cooling device, the cooling device feeds back the operating rotational speed (e.g., the rotational speed of the fan, the rotational speed of the electric pump) to the heat dissipation controller 22, and displays the operating speed in the form of a graph in the operating condition output of the operating condition simulator 21. The CAN message in this embodiment may be referred to as a test instruction for testing the heat dissipation controller 22. After receiving the operation data of the cooling device such as the rotating speed of the fan, the rotating speed of the electric pump, and the like, the working condition simulator 21 displays the comparison result of the operation data and the target operation data corresponding to the operation data. Referring to fig. 1, the operating condition output display shows a broken line comparison graph of the expected operating condition of the cooling device and the actual operating condition of the cooling device according to the control strategy, and the correctness of the control strategy is intuitively demonstrated. If the fold lines of the expected result and the actual result are overlapped, the control strategy is completely correct and effective, and if the two fold lines have deviation, a developer is required to research the reason of the deviation and timely make an adjustment to the control strategy or the heat dissipation controller 22.
From the above, it can be seen that: the working condition simulator 21 is configured to simulate a test instruction for testing the heat dissipation controller 22, send the test instruction to the heat dissipation controller 22, receive operation data of at least one cooling device returned by the heat dissipation controller 22, and display a comparison result between the operation data and target operation data corresponding to the operation data;
the heat dissipation controller 22 is configured to execute an operation corresponding to the test instruction, receive operation data fed back by at least one cooling device, and send the operation data to the operating condition simulator 21.
In another embodiment of the utility model, can normally detect the cooling arrangement trouble in order to detect heat dissipation controller 22, the utility model discloses in, set up heat dissipation controller 22's input still with do the DC power supply's of test bench 13 power supply output is connected, comes analog device trouble through DC power supply like this, and then avoids letting heat dissipation controller 22 detect the destruction of the mode of trouble to equipment through direct damage equipment.
Specifically, the high level of the dc power supply is used to simulate the device failure, and the low level simulates the device being normal, and then the level signal is sent to the controller to verify the failure handling capability of the thermal dissipation controller 22. And after detecting the fault, the heat dissipation controller 22 outputs the fault to the working condition simulator 21, and displays an equipment fault interface.
It should be noted that the heat dissipation controller 22 is provided with a plurality of interfaces for connecting different devices, such as a fan interface, a water pump interface, and the like, and in order to verify which device is connected, a high-low level signal is input to the corresponding interface through the dc power supply to simulate a fault and a normal state of the device, so that the heat dissipation controller 22 performs detection.
If a direct-current power supply is used for simulating a fan fault, a water pump fault and a liquid level fault and sending the fault to the heat dissipation controller 22, the heat dissipation controller 22 feeds a fault result back to the working condition simulator 21 to be displayed, and a user determines the fault detection capability of the heat dissipation controller 22 by judging whether the fault occurs or not the heat dissipation controller 22 can detect the fault.
In addition, the heat dissipation controller 22 can also receive a water level monitoring result fed back by the expansion tank, and feed back the water level monitoring result to the working condition simulator 21, so that the working condition simulator 21 displays the water level monitoring result to analyze the accuracy of the water level monitoring result transmitted by the heat dissipation controller 22. More specifically, be provided with water level monitoring device in the expansion tank, this water level monitoring device can detect the height of the coolant liquid in the collision water tank, when its height is less than preset height, when the surplus of coolant liquid is less promptly, can send water level monitoring result to heat dissipation controller 22, heat dissipation controller 22 forwards to operating mode simulator 21, operating mode simulator 21 shows water level monitoring result, after the user sees water level monitoring result, whether the actual liquid level of the coolant liquid in the expansion tank goes to observe actually is crossed lowly, if cross lowly, it explains that heat dissipation controller 22 is normal, if cross lowly, it explains that heat dissipation controller 22 or water level monitoring device are abnormal.
In this embodiment, the working condition simulator 21 simulates working condition signals such as motor temperature, motor controller temperature, and the like and sends the working condition signals to the heat dissipation controller 22, and the heat dissipation controller 22 performs logic calculation according to a control strategy and then sends a control instruction to the cooling device in the test bench 13 in the form of a CAN message or PWM. The working condition simulator 21 collects the real working condition of the cooling device at the same time, compares the real working condition with the working condition expected and judged according to the control strategy, and displays the working condition in a chart form, namely, working condition output. The test bench 13 can simulate a fan fault, a water pump fault and a coolant level fault at the same time, and sends the faults to the heat dissipation controller 22, and the heat dissipation controller 22 feeds back the faults to the working condition simulator 21 for displaying.
In the present embodiment, a test system for a heat dissipation controller 22 of a fuel cell system is provided, which includes a working condition simulator 21, the heat dissipation controller 22, and a test bench 13. The condition simulator 21 simulates test instructions for testing the heat dissipation controller 22, and sends the test instruction to the heat dissipation controller 22, the heat dissipation controller 22 performs an operation corresponding to the test instruction and receives operation data fed back by at least one of the cooling devices, and sends the operation data to the working condition simulator 21, the working condition simulator 21 displays the comparison result of the operation data and the target operation data corresponding to the operation data, the test of the heat dissipation controller 22 is realized, that is, the present invention can test the heat dissipation controller 22 through the test system of the heat dissipation controller 22 of the fuel cell system without using real equipment on the vehicle to test the heat dissipation controller 22, and the safety of the equipment on the vehicle is not affected, and the safety and the reliability of the equipment on the vehicle are ensured.
In addition, the working condition simulator 21 can directly simulate the signals of the whole vehicle, can completely replace partial equipment, and is simple and convenient to operate. In addition, the test bench 13 can completely verify the complete function of the heat dissipation controller 22 by only simple equipment, thereby saving resources and research and development costs.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The test system of the controller is characterized by comprising the controller and a test bench; a plurality of controlled devices are arranged on the test bench; the controlled devices are connected according to a preset connection relation; the test system also comprises a working condition simulator, and the working condition simulator and the controlled equipment are respectively connected with the controller;
the working condition simulator is used for: simulating a test instruction for testing the controller, sending the test instruction to the controller, receiving the running data of at least one controlled device returned by the controller, and displaying a comparison result of the running data and target running data corresponding to the running data;
the controller is configured to: and executing the operation corresponding to the test instruction, receiving at least one piece of operation data fed back by the controlled equipment, and sending the operation data to the working condition simulator.
2. The test system of claim 1, wherein the input of the controller is further connected to an output of a dc power supply that powers the test rig.
3. The test system of claim 1, wherein the controller comprises a thermal management controller; the controlled device comprises a thermal management device;
the thermal management device comprises: the system comprises a radiator, a water pump, a heater, a thermostat and an expansion water tank;
the first output end of the thermostat is connected with the input end of the radiator, the second output end of the thermostat is connected with the input end of the heater, the output ends of the radiator and the heater are connected with the first input end of the water pump, and the output end of the water pump is connected with the input end of the thermostat; the output end of the expansion water tank is connected with the second input end of the water pump; and the gas output end of the radiator is connected with the gas input end of the expansion water tank.
4. The test system of claim 1, wherein the controller comprises a heat dissipation controller; the controlled device includes a cooling device;
the cooling equipment comprises a water pump, a radiator and an expansion water tank; the output end of the water pump is connected with the input end of the radiator; the output end of the radiator is connected with the input end of the water pump; and two ends of the expansion water tank are respectively connected with two ends of the water pump.
5. The test system of claim 1, wherein the condition simulator and the controller communicate via CAN messages.
6. The test system of claim 1, wherein the condition simulator comprises a display device for receiving user-entered test data.
7. The test system of claim 1, wherein the controller communicates with the plurality of controlled devices in the test rack via CAN messages or PWM messages.
8. The test system according to claim 3 or 4, wherein a cooling fluid is provided in the expansion tank.
9. The test system according to claim 3 or 4, wherein a heat sink fan is provided on the heat sink.
10. The test system of claim 1, wherein the condition simulator comprises a processor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113740748A (en) * | 2021-09-03 | 2021-12-03 | 深圳市新威尔电子有限公司 | Battery detection method for sending message based on CAN bus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740748A (en) * | 2021-09-03 | 2021-12-03 | 深圳市新威尔电子有限公司 | Battery detection method for sending message based on CAN bus |
| CN113740748B (en) * | 2021-09-03 | 2024-04-26 | 深圳市新威尔电子有限公司 | Battery detection method based on CAN bus sending message |
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