Study On Driving Simulation System For Vehicle Stability Control

By the support of National Nature Science Foundation, In line with the research forstability control system of vehicle and the driving simulation system,some key problemsof stability control system were studyed as follows:①According to the modern electronic stability system development plan, this paperexpounds the stability of the control system of typical structure and principle, anddo research for the lateral movement theory of car, puts forward control wheelyawing moment achieve stability control.②Derivation stability control car model with two degrees of freedom, analyzes the yawrate and side silp angle influencing the stability of the car, side slip angle in too largeand too small to influencing the stability of the car were analyzed.③Use LabVIEW software to optimizate the ideal model of two degrees;Throughcontrast the existing research methods, determined to establish the system with yawrate and side slip angle as control variables, discrete PID as control output; Establishthe distribution strategy for brake.④Summarizes the research methods for driving simulator, puts forward a plan can beused to verify the stability control strategy; Introduced the use of LabVIEWsoftware visit DLL files method to building jont with CarSim,to combination theLabVIEW software simulation control model. Through the BETOP human learninginput equipment,PC computer,LabVIEW RT system,filish the hardware designe ofstability control driving simulation system; Through the control model, car modeland the hardware completed the construction of the stability control drivingsimulation system.⑤Through the open loop simulation test such as step input and the more periodic sineinput, and person-car-road closed-loop simulation experiment sucn as double lanechange to verify the correctness of the stability control strategy.⑥Complete the driving simulation system verification for car stability control strategy,through the Sinusoidal wear stem condition, true pilot intervention in the driving,compared the impact of the car’s stability while the pilot operation on the stabilitycontrol and not under stability control. The simulation results show that the designof driving simulation platform can be effective detection the performance of the stability control system，it is effective.