发明申请
US20160138665A1 METHOD OF ESTIMATING BRAKE PAD WEAR AND VEHICLE HAVING A CONTROLLER THAT IMPLEMENTS THE METHOD
有权
估计制动踏板磨损的方法和具有实施方法的控制器的车辆
- 专利标题: METHOD OF ESTIMATING BRAKE PAD WEAR AND VEHICLE HAVING A CONTROLLER THAT IMPLEMENTS THE METHOD
- 专利标题(中): 估计制动踏板磨损的方法和具有实施方法的控制器的车辆
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申请号: US14540048申请日: 2014-11-13
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公开(公告)号: US20160138665A1公开(公告)日: 2016-05-19
- 发明人: David B. Antanaitis , Mark T. Riefe
- 申请人: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- 主分类号: F16D66/02
- IPC分类号: F16D66/02
摘要:
A method of estimating brake pad wear includes determining required braking energy to be dissipated by a braking system as a fraction of total kinetic energy according to an energy partitioning model. The required braking energy is distributed to vehicle braking mechanisms according to a vehicle dynamics model. Rotor temperature of each brake rotor may be determined according to a rotor temperature model that utilizes the required braking energy and the distribution of the required braking energy, and determining brake pad wear of each brake pad according to a brake pad wear model that utilizes the rotor temperature and the distributed required braking energy. A first brake pad wear model is implemented under first operating conditions, and a second brake pad wear model under second operating conditions. The brake pad wear is indicated via a brake pad wear indicator output device. A vehicle has a controller that implements the method.
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