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It is not recommended to use the parking brake when the vehicle is in-motion, unless there is a problem with the main brakes, as this can lock the back wheels and cause a skid. [16] This is known as a handbrake turn, which is often performed in street racing and rallying to initiate rear wheel drift.
The driver starts by using steering input to transfer weight to the outside tires; the handbrake is then used to lock the rear wheels, thus upsetting the adhesion between the tires and the road surface. With practice, the car can be placed accurately by releasing the handbrake and accelerating the vehicle. [1]
Electric park brake in the center console in a Volkswagen Golf Variant. An electronic parking brake (EPB), also known as an electric parking brake or electric park brake, is an electronically controlled parking brake, whereby the driver activates the holding mechanism with a button and the brake pads are electrically applied to the rear wheels. [1]
A line lock is a device that allows the front brakes to lock independently of the rear brakes via a switch. [1] [2] [3] The device is an electric solenoid that controls a valve which allows the brakes to be controlled individually. This allows the front brakes to be locked and the rear brakes to be open, and allows the driver to spin the rear ...
Many road vehicles with regenerative braking do not have drive motors on all wheels (as in a two-wheel drive car); regenerative braking is normally only applicable to wheels with motors. For safety, the ability to brake all wheels is required.
Driver's brake handle in a class 317 electric multiple unit. On trains, the expression emergency brake has several meanings: . The maximum brake force available to the engine driver from the conventional braking system, usually operated by taking the brake handle to its furthest position, through a gate mechanism, or by pushing a separate plunger in the cab.
The handbrake or parking brake only operates the brakes on (typically) the rear wheels. The reason a handbrake turn works is because locking up the rear brakes causes a vehicle to oversteer, or swing its rear out, whereas with the normal brake pedal, the front brakes do most of the work.
A transmission brake or driveline parking brake is an inboard vehicle brake that is applied to the drivetrain rather than to the wheels. Historically, some early cars used transmission brakes as the normal driving brake and often had wheel brakes on only one axle, if that. [citation needed] In current vehicles, these brakes are now rare.