Simulation of an adaptive anti-slip regulation/hill-start assist control system

Anti-slip regulation (ASR) systems can maintain the slip rate within a certain range when a vehicle accelerates on low adhesive road surfaces and thus prevent the drive wheels from rotating uncontrollably. Hill-start assist control (HAC) systems, the latest active safety device, can help avoid sliding backwards, especially when a vehicle starts on a slope. The integration of ASR and HAC systems garners merit from sides-stronger acceleration capacity, increased steerability and easier handling. We develop a virtual vehicle environment on the CarMaker and Matlab/Simulink platforms and used it to test the efficacy of an ASR/HAC system. Based on the Model Reference Adaptive PID (proportional integral derivative) Control, new ASR and HAC system algorithms also are introduced and integrated as one. The simulation results show that the vehicle acceleration and control characteristics are enhanced.