Development of hardware-in-loop and virtual reality co-simulation platform for automotive anti-lock braking system

To improve the development efficiency of automotive anti-lock braking system (ABS), a simulation test approach is proposed, this test approach is based on hardware-in-loop simulation and virtual reality technology. Real braking system, accelerator pedal, brake pedal and steering system are used as external I/O, with NI PXI realtime emulator to run the vehicle dynamic model, the realtime simulation interface to connect external I/O and vehicle model data are established. A wheel speed acquisition system is developed to send the wheel speed to the ECU, ECU control electromagnetic valve according to the received data. At the same time, a virtual reality system based on 3D engine technology is developed. Virtual reproduction of the vehicle running is realized according to the received real-time data. Simulation tests on the platform for ABS under different conditions are done, the results show that the platform can reproduce the simulation process and shorten the ABS development cycle.