Method and system for determining a cornering angle of a tyre during the running of a vehicle

车辆行驶时测定轮胎拐弯角的方法与系统

Abstract

公开了当车辆在滚动路面上运行时测定装配于此车辆上的轮胎(11)的拐弯角(2)的方法与系统。上述轮胎包括一赤道面。此方法包括下述步骤:估算在所述轮胎与所述滚动表面接触区的长度(PLi/e),此长度是在隔开该赤道面一定距离处测量的;估算加于所述轮胎正的载荷(Fz);估算所述轮胎所发生的外倾角(r);根据上述外倾角(r)、轮胎载荷(Fz)与接触区长度(PLi/e)推导出该拐弯曲(α)的值。
Disclosed is a method and a system for determining a cornering angle (alpha) of a tyre fitted on a vehicle during a running of said vehicle on a rolling surface, the tyre comprising an equatorial plane, the method comprising the steps of: estimating a length (Pli/e) of a contact region between said tyre and said rolling surface, said length being measured at a distance from the equatorial plane; estimating a load (Fz) exerted on said tyre; estimating a camber angle (gamma) to which said tyre is subjected; and deriving such cornering angle (alpha) from said camber angle (gamma), tyre load (Fz)and contact region length (PLi/e).

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