The invention provides a tire cornering stiffness identification method, and relates to the technical field of vehicle parameter identification. Comprising the following steps: S1, establishing a lateral force tire model; s2, designing a tire lateral force estimator; s3, designing a slip angle feedback estimator based on the lateral force estimated in the step S2; and S4, designing a cornering stiffness online identification algorithm based on the lateral force estimated in the step S2 and the slip angle estimated in the step S3. According to the identification method, the real-time lateral force and the slip angle of the tire are considered, the tire cornering stiffness can be estimated in real time, the steps are simple and clear, the accuracy of a calculation result is high, and the problems that most existing tire cornering stiffness obtaining methods are tedious in steps, complex in calculation, low in accuracy and the like are solved.
本发明提供一种轮胎侧偏刚度辨识方法,涉及车辆参数辨识技术领域。包括步骤S1:建立侧向力轮胎模型;步骤S2:设计轮胎侧向力估计器;步骤S3:基于步骤S2中估计所得的侧向力,设计侧偏角反馈估计器;步骤S4:基于步骤S2中估计所得的侧向力和基于步骤S3中估计所得的侧偏角,设计侧偏刚度在线辨识算法。本辨识方法考虑了轮胎实时侧向力和侧偏角,可实时估计出轮胎侧偏刚度,步骤简洁清晰并且计算结果的准确度高,解决了目前的大多数轮胎侧偏刚度获取方法都存在着步骤繁琐、计算复杂、准确度低等局限性的问题。
Tire cornering stiffness identification method
轮胎侧偏刚度辨识方法
2024-12-27
Patent
Electronic Resource
Chinese
Tire cornering stiffness online identification method and system
European Patent Office | 2020
|European Patent Office | 2024
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