Electric Park Brake

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Electric Park Brakes are used on passenger vehicles to hold the vehicle stationary on grades and flat roads. This was accomplished traditionally using a manual Parking brake. With Electric Park Brakes, the driver activates the holding mechanism with a button and the brake pads are then electrically applied onto the rear brakes.[1] This is accomplished by an Electronic Control Unit and an actuator mechanism. There are two mechanisms that are currently in production: 1. Cable Puller systems and 2. Caliper integrated systems.[2]

Functionality[edit]

Apart from performing the basic vehicle holding function required off of park brakes, the EPB systems provide other functions like automatic release of the Park brakes when driver presses the accelerator and re-clamping using additional force on detection of vehicle motion.[2] Further, the hill-hold function, which applies brakes to prevent roll-back when pulling away on a gradient, can also be implemented using the EPB.[3]

Implementation[edit]

The implementation of the control logic for the actuators is carried out by either using a stand alone ECU[4] or by integrating it in the ECU for Electronic Stability Control[5]

Standards[edit]

The design of the Electric Park Brakes should be compliant with

References[edit]