基于TRIZ理论提高车辆转弯工况下的稳定性

Stability of vehicles' cornering case based on TRIZ theory

基于TRIZ理论的新型矛盾矩阵和创新原理,得出3种原理设想并应用于车辆制动系统。通过控制半主动悬架减振器的阻尼力来改变过渡轮负荷,从而控制外圈前轮的制动力,以此提高车辆回转过大时的操控稳定性。并进行了实车试验,由于采用了反转型半主动悬架控制垂向载荷,所以不需要使用车高传感器。试验结果表明,通过控制半主动悬架减振器的垂向阻尼力,车辆侧滑角得到了明显改善。

In this paper, based on the contradiction matrix and innovation principle of TRIZ theory, three strategies are proposed for the vehicle braking system. The transition wheel load is changed by controlling the damping force of the semi-active suspension shock absorber. Thereby, the outer front wheel braking force is controlled. This can improve the vehicle handling stability when the vehicle steering wheel rotation is over large. To verify the effect of the above method vehicle running test is carried out. As a reverse damping force semi-active suspension is employed to control the vertical load, so the vehicle height sensor is not needed in the test. Test result show that, by control of the vertical damping force of the semi-active suspension shock absorber, the vehicle slip angle is significantly improved.