METHOD OF ESTIMATING BRAKE PAD WEAR AND VEHICLE HAVING A CONTROLLER THAT IMPLEMENTS THE METHOD
    2.
    发明申请
    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

    公开(公告)号:US20160138665A1

    公开(公告)日:2016-05-19

    申请号:US14540048

    申请日:2014-11-13

    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.

    摘要翻译: 估计刹车片磨损的方法包括根据能量分配模型确定要由制动系统消散的所需制动能量作为总动能的一部分。 所需的制动能量根据车辆动力学模型分配到车辆制动机构。 每个制动转子的转子温度可以根据利用所需制动能量和所需制动能量分布的转子温度模型来确定,并且根据利用转子的制动片磨损模型确定每个制动衬块的制动衬块磨损 温度和分布所需的制动能量。 在第一操作条件下实施第一制动片磨损模型,在第二操作条件下实施第二制动垫磨损模型。 刹车片磨损由刹车片磨损指示器输出装置指示。 车辆具有实施该方法的控制器。

    BRAKE ROTOR PROGNOSIS
    4.
    发明申请

    公开(公告)号:US20190017561A1

    公开(公告)日:2019-01-17

    申请号:US15651475

    申请日:2017-07-17

    IPC分类号: F16D66/02 B60T17/22

    摘要: Technical solutions are described to for determining thickness of a vehicle brake rotor. An example method includes providing vehicle parameters that identify operating conditions of a vehicle, and using the vehicle parameters to determine work done by a brake of the vehicle as brake-work. Further, the method includes using the brake work to determine brake rotor temperature, and using the brake rotor temperature to determine brake rotor wear. The method further includes accumulating the brake rotor wear to provide an estimation of the thickness of the vehicle brake rotor.

    Brake temperature monitoring system

    公开(公告)号:US10562509B2

    公开(公告)日:2020-02-18

    申请号:US15643047

    申请日:2017-07-06

    摘要: A brake temperature monitoring system configured to monitor at least one of a rotor and hydraulic fluid of a brake mechanism for a vehicle. The system including a controller including a processor and an electronic storage medium, a vehicle velocity sensor, an ambient temperature sensor, and a pre-programmed module. The vehicle velocity sensor is configured to output a velocity signal to the processor. The ambient temperature sensor is configured to output an ambient temperature signal to the processor. The model is pre-programmed into the electronic storage medium, and is adapted to estimate the temperature of at least one of the rotor and the hydraulic fluid. The estimation is based on an ambient air temperature, and a pre-established relationship between a conductive heat transfer factor and a convective heat transfer factor. The convective heat transfer factor is a function of vehicle velocity.

    BRAKE PAD WEAR ESTIMATION
    10.
    发明申请

    公开(公告)号:US20190107163A1

    公开(公告)日:2019-04-11

    申请号:US15728850

    申请日:2017-10-10

    IPC分类号: F16D66/02 G01L5/22 G07C5/08

    摘要: Technical solutions are described for determining thickness of a vehicle brake pad. An example method for estimating brake pad wear on a vehicle includes computing a corner torque for a brake based on corner brake pressure applied to the brake. The method also includes computing a corner power for the brake based on the corner torque. The method also includes computing a rotor temperature of a rotor of the brake based on the corner power. The method also includes determining a brake pad wear rate per unit of power based on the rotor temperature and the corner power. The method also includes computing a brake pad wear based on the brake pad wear rate and the corner power.