轮胎侧偏刚度在线估算方法

对轮胎侧偏刚度进行估算能满足研发汽车稳定性控制系统的需要,文章探讨了3种在线估算轮胎侧偏刚度的方法,并进行了比较分析。结果表明,直接法和GPS/INS综合测量法原理清晰且求解高效,但这2种方法仅仅适用于轮胎线性范围内;加速度变化率法适应性好,但需要冲动传感器或通过信号高性能滤波,故成本较高。

On-line Estimating Method of Tire Cornering Stiffness

In order to estimate the tire cornering stiffness to meet the needs of vehicle stability control system,three kinds of on-line estimating methods of tire cornering stiffness are discussed,and comparative analysis is carried out.It is shown that the direct method and the GPS/INS integrated measurement are clear and effective,but these methods can only use within the linear range of the tires.The acceleration rate changing method has good adaptability,but impulse sensor or high quality signal filter is required,therefore its cost is rather high.