Automotive Anti-lock Brake System Dynamics Simulation Study

The anti-lock brake system (ABS) as an auxiliary brake system can avoid the tire locking and ensure the lateral stability and turning steering at the time of braking when the vehicle urgent braking. Besides it can make the vehicle achieve the minimum brake distance on most of the road. Now the ABS is used more and more widely and many manufacturers are developing the new ABS. During developing the new product test is the most important phase. The test of the ABS is laborious and expensive and needs more time and the special field. So it is limited by the test's condition. This thesis take the vehicle equipped ABS as research object and simulates the ABS based on the computer technique. It realizes the stimulant test of the vehicle equipped the ABS.The thesis builds moving model of the vehicle, brake system model, the tire model and the logic control model of ABS aimed at the medium-sized vehicle. Based above it uses the Visual Basic6.0 on the Windows plat develop the double parameters ABS dynamic simulation and emulator. By contrasting the stimulant result to the test result it is testified to substitute the test phase partly during the product development and to be of valuable and practical.