Development of Hardware-in-Loop Simulation Platform for Extended Range Hybrid Vehicle Control Unit

Due to the extended range hybrid vehicle powertrain system having multivariable and non-linear characters, this paper proposed a real-time simulation development platform scheme based on model design. First, a segmented energy management strategy (thermostat + power following) was proposed, which aims to improve the engine operation efficiency and reduce the losses during both charging and discharging. Second, the offline simulation model of the extended range hybrid vehicle powertrain system is established, which can realize the control function and meet the requirements of the real vehicle. Third, the hardware in the loop simulation platform of the vehicle controller is established, and the vehicle control program can run correctly in the real-time controller. The test of the offline simulation by Matlab/Simulink and the controller’s hardware in the loop (HIL) test are completed. Finally, comprehensive test results show that the real-time simulation development platform of an extended range vehicle based on model design can better meet the development and test requirements of the vehicle, and has good practicability and accuracy. The hardware-in-loop simulation platform for extended range hybrid vehicle control unit can accelerate the development and design of the extended range hybrid vehicle control system.