NI-PXI-platform-based hardware-in-the-loop test device for complete vehicle controller of pure electric vehicle

A vehicle controller and new energy vehicle technology, applied in the general control system, control/regulation system, test/monitoring control system, etc., can solve the problems of high cost and difficult popularization, and achieve the effect of cost reduction

Active Publication Date: 2019-02-22
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardware-in-the-loop test system developed on the widely used DSPACE platform is difficult to popularize due to its high cost

Method used

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  • NI-PXI-platform-based hardware-in-the-loop test device for complete vehicle controller of pure electric vehicle
  • NI-PXI-platform-based hardware-in-the-loop test device for complete vehicle controller of pure electric vehicle
  • NI-PXI-platform-based hardware-in-the-loop test device for complete vehicle controller of pure electric vehicle

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Experimental program
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Embodiment Construction

[0042] The new energy vehicle controller hardware-in-the-loop test system in this embodiment mainly includes two parts, namely, the establishment of the test model and the construction of the test system.

[0043] The vehicle model required for the test is built using Simulink, and the vehicle model mainly includes a battery model, a motor model, a final reducer model and a wheel model.

[0044] The vehicle model is used to realize the longitudinal dynamic equation of the vehicle, obtain the actual speed of the vehicle, and limit the speed of the vehicle. The maximum speed of the D gear is 120Km / h, and the maximum speed of the R gear is 30Km / s.

[0045] The dynamic equation of the vehicle model is:

[0046]

[0047] in,

[0048]

[0049]

[0050]

[0051]

[0052]

[0053] F in the formula t is the traction force, F w is the air resistance, F f is the rolling resistance, F i is the ramp resistance, F j is acceleration resistance, a is acceleration, V t i...

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Abstract

The invention provides an NI-PXI-platform-based hardware-in-the-loop test device for a complete vehicle controller of a pure electric vehicle. The hardware-in-the-loop test device comprises a pure electric vehicle complete vehicle controller VCU, an NI real-time processor, an NI board card, a fault injection system, and a PC machine. To be specific, the NI real-time processor is used for operatinga simulation model to simulate the running state of a controlled object; the NI board card is used for simulating the input and output; connection with a tested VCU is realized through an I / O interface; with Veristand software, the model interface is associated with the board card resources to form one set of real-time simulation systems; and a VCU system control strategy is detected on the PC machine. According to the invention, the control strategy of the complete vehicle controller is verified and tested; and the development cycle of the complete vehicle controller is shortened. The hardware-in-the-loop test device has advantages of high flexibility and strong expandability. The user is able to carry out function expansion based on the equipment according to actual usage demands; and testing of other transformation controllers is realized after simple configuration of the hardware and the model.

Description

technical field [0001] The invention belongs to the field of hardware-in-the-loop testing systems, in particular to a hardware-in-the-loop testing system for a vehicle controller of a new energy vehicle. Background technique [0002] In recent years, major companies have vigorously developed pure electric vehicles, and the vehicle controller VCU, as one of the three core components of pure electric vehicles, is the core of the vehicle control system. VCU technology is particularly important in the development of electric vehicles. HIL simulation technology is a powerful test method, which is an indispensable verification method for the current V-shaped development process, and is used for more effective testing of embedded control systems. During the VCU development process, HIL testing can effectively shorten the development cycle and reduce the risk of actual vehicle testing and calibration. The hardware-in-the-loop test system developed on the widely used DSPACE platform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 朱仲文周炼王旭何超李丞董勇涛魏庆刘志宏
Owner CHINA AUTOMOTIVE TECH & RES CENT
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