Magneto-rheological brake pedal feel emulator

摘要

An emulator affixed to a brake arm connected to a brake pedal of an electric brake system is capable of emulating a hydraulic brake. The emulator includes a housing defining a fluid chamber containing a magneto-rheological (MR) fluid. A piston is slideably disposed within the piston chamber and a spring biases the piston to resist depression of the brake pedal. A magnetic source generates a magnetic field upon the MR fluid thereby increasing the sheer resistance of the MR fluid further resisting depression of the brake pedal emulating a hydraulic brake system. The amount of resistance can be varied according to the strength of the magnetic field exerted on the MR fluid.