Brake system for a motor vehicle and method for controlling the same
AssigneeRobert Bosch GmbH
InventorsHerbert Vollert, Reinhard Weiberle
Life of this patent
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Abstract
The invention relates to a hybrid brake system having a hydraulic service brake system and an electromechanical service brake system. According to the invention, a brake booster is designed as a pedal simulator, which can be used to boost power and to generate a pedal power which is counter to the direction of actuation. When the hydraulic service brake system fails, the electromechanical service brake system is used for braking and the brake booster generates a pedal power which allows or facilitates dosage of the brake actuation.
Claims9
1-6. (canceled)
A motor vehicle brake system, which includes a hydraulic service brake system and an additional service brake system, the hydraulic service brake system having a muscular force-actuatable master cylinder with a brake booster and one or more hydraulic wheel brakes that are connected to the master cylinder, the brake booster being embodied in as a pedal simulator which is able to produce a pedal force that counteracts an actuation force.
A method for controlling a motor vehicle brake system, which includes a hydraulic service brake system and an additional service brake system, the hydraulic service brake system having a muscular force-actuatable master cylinder with a brake booster and one or more hydraulic wheel brakes that are connected to the master cylinder, comprising the steps of:
- measure a brake actuation via an actuation sensor system;
- producing a pedal force that counteracts an actuation force via a brake booster that is embodied in the form of a pedal simulator;
- and
- if a usual actuating force is not achieved during an actuation travel, producing a pedal force that counteracts an actuation force via the brake booster.
Dependencies are inferred from the claim text.