A new energy vehicle vehicle control strategy and network test platform

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Such as figure 1 As shown, the new energy vehicle control strategy and network test platform according to the embodiment of the present invention includes: a digital and analog input module 1, a test host 2 and a CAN bus analyzer 3; the digital and analog The input module 1 unidirectionally transmits the vehicle demand signal to the tested vehicle controller 4 through hard wires; the test host 2 exchanges information with the tested vehicle controller 4 and the CAN bus analyzer 3 through hard wires; The CAN bus analyzer 3, the tested vehicle controller 4, the instrument 5, the motor controller 6, the battery management system 7 and the charger 8 exchange data through the CAN network; the CAN bus analyzer 3 will receive the The CAN signals of the test vehicle controller 4, the instrument 5, the motor controller 6, the battery management system 7 and the charger 8 are converted into hard-wired signals and transmitted to the test host 2 through the hard-wired.

[0021] The digital and analog input modules simulate the state of the vehicle key, gear position, and throttle plate, and transmit relevant information to the vehicle controller under test.

[0022] The test host is equipped with a host computer test acquisition and display system. The host computer test acquisition and display system has the following interfaces to choose from: CAN bus parameter setting, vehicle network data monitoring, motor controller analog output, battery management system analog output, charger analog output And so on, and graphical display. The test host is used to collect measured node information, set bus parameters, node CAN information simulation output, vehicle network data monitoring display and vehicle control frame simulation output. The bus parameter setting includes the network channel and baud rate setting. After the bus parameter setting is completed, press the bus control button, there will be an indicator light to feedback whether the bus connection is correct; after the bus parameter setting is completed, select the "vehicle network data monitoring" interface, The message information on the bus will appear in the data monitoring frame, including trigger time, message identifier, data length and data. At the same time, you can observe whether the vehicle control strategy design is reasonable. You can observe the battery voltage and SOC displayed on the interface. , Battery temperature, battery controller temperature, motor temperature and battery status are normal. The vehicle control frame simulation output can adjust the vehicle controller control frame information according to the control strategy, observe the feedback and processing mechanism of the test node, and display the corresponding information on the instrument.

[0023] The CAN bus analyzer performs data analysis on the tested vehicle controller, instrument, motor controller, battery management system, charger, bus information, and test host simulation vehicle controller frame, and puts relevant information in the instrument, test The host computer is displayed in the test, acquisition and display system.

[0024] The present invention has been used in new energy vehicle vehicle control strategy and component performance. The vehicle control strategy to be tested is brushed to the vehicle controller and the components are connected according to the test harness, and the test bench power is turned on to simulate the vehicle Driving status, verify the vehicle control strategy and the network and feedback of parts. According to the requirements of the vehicle control strategy, each component sends relevant information to the CAN bus, which is clearly displayed through the upper computer test, acquisition and display system. At the same time, the testing process does not require programming and modeling outside of the control strategy, which reduces work intensity and improves work efficiency.

[0025] The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the present invention. Within the scope of protection.