The Research And Testing Of Hardware-in-the-loop Simulation For Vehicle Electronic Stability Control System

Electronic Stability Control System (ESC) is the representative product of vehicleactive safety, which can significantly improve the safety performance of the vehicle andreduce traffic accidents. With the in-depth study for vehicle simulation technology, thehardware-in-the-loop simulation technology has gradually been adopted during thedevelopment process of ESC product. Using it to replace the part of vehicle tests not onlycan reduce the product development costs, but also can shorten the research cycle. Thus,the research and development of ESC hardware-in-the-loop simulation test-bed is verymeaningful.This thesis analyzes the domestic and foreign development present situation of ESCand the research situation of ESC hardware-in-the-loop simulation test-bed in the domesticcolleges and universities, then the work content of this paper will be described. First,several questions of ESC were studied, such as the structure of ESC, the main function ofESC and the principle of Hydraulic Control Unit (HCU). The vehicle dynamics model issuitable for the ESC was expounded which have15degrees of freedom. Secondly, basedon Vehicle Dynamics and Multibody Dynamics, the vehicle parametric model is suitablefor ESC simulation was set up by using Carsim software. The rationality of this model wasverified by an experiment. Thirdly, ESC hardware-in-the-loop simulation test-bed wasbuilt based on Carsim and LabVIEW software. The vehicle parametric model wasembedded into the LabVIEW software and run on the bottom layer. Several experimentswere carried out on this test-bed, and the results compare with the real vehicle test resultsto verify the simulation accuracy of this test-bed. Lastly, the test method and evaluationindex of ESC in the FMVSS126regulation was researched. The Sine with Dwell Testswere performed on the test-bed to validate the performance of ESC.