Electromechanical brake force booster
AssigneeRobert Bosch GmbH
InventorsHerbert Vollert, Reinhard Weiberle
Life of this patent
Estimating the term…
Abstract
The invention relates to an electromechanical brake force booster for a hydraulic vehicle brake system. The invention proposes that the brake force booster be formed with two restoring springs, one of which acts on an electromechanical actuator and the other of which restoring springs acts on a pedal rod. In the event of failure of the electromechanical actuator, only the other spring, which preferably has a relatively low spring force, must be compressed using muscle force. The force loss in the event of actuation exclusively by muscle force is reduced.
Claims16
1-9. (canceled)
An electromechanical brake booster, comprising:
- a muscular force transmitting element by means of which it is possible to use muscular force to actuate a brake master cylinder;
- an electromechanical actuator by means of which it is also possible to actuate the brake master cylinder;
- a return spring that moves the brake booster back to a starting position after an actuation;
- at least two return springs, one of which returns the muscular force transmitting element and an other of which returns the actuator;
- and
- a telescoping booster element for transmitting an actuator force of the electromechanical actuator to a piston of the brake master cylinder.
Dependencies are inferred from the claim text.