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トップ > News Release >What is the difference between positive (active) brakes and the negative brakes?
What is the difference between positive (active) brakes and the negative brakes?
2014.02.24
Positive brakes are actuated by an external force. Negative brakes are actuated by the force of a spring and are released by an external force.
Example: Automobile brakes are positive brakes, actuated by applying foot pressure to a hydraulic piston which presses the brakes. Springs release the brake force.
Negative brakes work in reverse like elevator safety brakes are always closed and the braking force is applied by a spring. Hydraulic or electromagnetic pistons are used to to release the spring force thus releasing the brake.
