Electronic Power Steering Matching Design On A Mini-van

Compare to the conventional power steering system, Electrical power steering (EPS) takes the advantage of economic, convenient for installing and maintaining, good handle feeling in all situation.ect. There is no doubt that EPS will take the place of the conventional steering system. In our country there is a lot of cars adopt this kind of steering system. But it’s long time few people focus on the study of equipping the steering system on low-price car,such as mini-van.ect. Facing for the fierce competition marketing of China, manufactures need to improve their products to make sure that they won’t lose. Therefore, studying on how to apply this steering on the low-price car is a necessary request.In this article the writer introduces the history of the steering system, the structure of the EPS, its working principle and the development of electronic power steering system. focus on the dynamic model of electronic power steering system. figure out the working principle of the resistant steering torque. and what is discussed in this part will be a basic foundation for the further study. the matching design about the key hardware, including the ways how to chose the motor, reduction ratio and the torque sensor. Discussing the influence trend of some parameter. Using ADMAS/CAR build the mini-van model and test the accuracy of the model by some typical experiment.introduce some typical form of assistant curve, analysis the different among the different assistant curve, and chose the proper form to the matching design. compare to the fore-and-after change on steering system, make sure the matching is right.Aiming at find out the proper way of equipping the steering system on low-price cars in this article and providing the basic knowledge of practice and theory for the low-price car manufactures on equipping this steering system. The matching process is divided into two part, one part is focus on the hardware matching studying, and the other is manage to deal with the software matching. And in this way it will be very convenient for the relative engineer query.