Robert Boschgmbh

Roman Winkler

Bastien Cagnac

Philippe Richard

Chris Anderson

Raynald Sprocq

Francois Gaffe

Jean-Marc Ritt

Komi Sokou

An electric brake booster includes an electric motor activating a booster piston acting on the master-cylinder during brake pedal activation. The booster piston is driven in the direction of the action of same on the master-cylinder by an electric motor linked to a mechanical transmission that includes a screw held by the motor shaft. The screw meshes with two symmetrical worm gears that are integral with respective transmission shafts housed in a bearing of the body of the brake booster. The two shafts each carry a spur gear that meshes with a rack of the booster piston. The shafts are free in translation relative to the screw and to the body of the electric brake booster but are integral with each other in the translational movement of same. The shafts are integrally connected in translation by a coupling member formed by a crosspiece carrying two rotation bearings.

Electric brake booster with transmission clearance compensation

Braking system with master cylinder (), decoupled from the brake pedal and hydraulic brake booster (), comprising A controlled hydraulic link () connects the boost chamber () and the actuator chamber () and a further controlled hydraulic link () connects the actuator chamber () to the chamber of a brake simulator ().

Brake system with master cylinder, disengaged from the brake pedal, and hydraulic brake booster

Growing community of inventors

Asnieres sur Seine, France

Roman Winkler