公开(公告)号：US07694555B2

公开(公告)日：2010-04-13

申请号：US12036675

申请日：2008-02-25

申请人： Mark N. Howell ,  John P. Whaite, Jr. ,  Phanu Amatyakul ,  Yuen-Kwok Chin ,  Mutasim A. Salman ,  Chih-Hung Yen ,  Mark T. Riefe

发明人： Mark N. Howell ,  John P. Whaite, Jr. ,  Phanu Amatyakul ,  Yuen-Kwok Chin ,  Mutasim A. Salman ,  Chih-Hung Yen ,  Mark T. Riefe

IPC分类号： G01M17/00

CPC分类号： B60T17/221 ,  F16D2066/006

摘要： A method for providing an estimate of brake pad thickness. The method employs fusion of sensors, if used, and driver brake modeling to predict the vehicle brake pad life. An algorithm is employed that uses various inputs, such as brake pad friction material properties, brake pad cooling rate, brake temperature, vehicle mass, road grade, weight distribution, brake pressure, brake energy, braking power, etc. to provide the estimation. The method calculates brake work using total work minus losses, such as aerodynamic drag resistance, engine braking and/or braking power as braking torque times velocity divided by rolling resistance to determine the brake rotor and lining temperature. The method then uses the brake temperature to determine the brake pad wear, where the wear is accumulated for each braking event. A brake pad sensor can be included to provide one or more indications of brake pad thickness from which the estimation can be revised.

摘要翻译： 一种用于提供制动衬块厚度的估计的方法。 该方法采用传感器的融合（如果使用），以及驾驶员制动器建模来预测车辆刹车片的寿命。 采用了诸如刹车片摩擦材料特性，刹车片冷却速度，制动温度，车辆质量，道路等级，重量分配，制动压力，制动能量，制动功率等各种输入的算法来提供估计。 该方法通过制动转矩乘以速度除以滚动阻力来确定制动转子和衬里温度，使用总工作减去损耗（如气动阻力，发动机制动和/或制动功率）来计算制动作业。 然后，该方法使用制动器温度来确定制动片磨损，其中每次制动事件都会累积磨损。 可以包括制动衬块传感器以提供制动衬块厚度的一个或多个指示，从中可以修改估计值。