Robert Boschgmbh

Remy Garnier

Herbert Vollert

Reinhard Weiberle

Jens Kolarsky

Timo Jahnz

Stephan Hoenle

Dirk Mahnkopf

Volker Mehl

Frank Kneip

Philippe Richard

Bastien Cagnac

Harald Guggenmos

Ben Ferguson

Ignaz Hatt

A screw drive for an electromechanical brake booster of a braking system of a motor vehicle includes: a threaded nut; and a threaded spindle engaged with the threaded nut. The threaded nut includes an outer section which is connectable to a drive unit for driving the threaded nut, and an inner section having a thread for accommodating the threaded spindle. The inner section and the outer section of the threaded nut are connected by a damping unit for damping the torsion of the threaded nut.

Method for damping the torsion of a screw drive for an electromechanical brake booster, screw drive for an electromechanical brake booster, and electromechanical brake booster

The system includes a high-pressure accumulator connected to the primary chamber of the master cylinder and to the inlet of the ESP module by a solenoid valve. The connection between the primary chamber and the brake fluid reservoir is equipped with a solenoid valve. A control circuit controls the solenoid valve of the reservoir and the solenoid valve of the accumulator, depending on the braking method selected or imposed. The dynamic braking phase is broken down into two tasks, one with energy recovery that involves isolating the master cylinder from the wheel brakes until deceleration to a threshold speed, followed by another step until full stop that involves connecting the primary chamber alone to the high-pressure accumulator and to the ESP module to provide the latter with pressurized brake fluid from the accumulator and supply the wheel brakes for mechanical braking.

Electro-hydraulic dynamic braking system and control method

An electromechanical brake booster is disclosed. The brake booster is constructed with two worm gears which run in opposite directions and whose axial forces compensate one another. The worm gears drive toothed rack gears which convert a rotational driving movement into a translatory output movement for activating a master brake cylinder. As a result of the provision of two gear paths, the loading of each gear path is halved and an application of force to a booster body, which forms a gear output, is symmetrical.

Electromechanical brake booster

A method for actuating a hydraulic vehicle brake system, includes a master brake cylinder with a preferably electromechanical brake booster and a wheel slip control device. The master brake cylinder is actuated simultaneously with the brake booster, and hydraulic pumps of the wheel slip control device are driven by an electric motor. Pressure builds more quickly in the wheel brakes of the vehicle brake system for safety and assistance functions that require high pressure build-up dynamic. The method also increases the wheel brake pressure using the pressure that can be generated by actuating the master brake cylinder with the brake booster.

Method for actuating a hydraulic vehicle brake system

A control device () for a brake-power-assisted brake system of a vehicle having a first input device () for a supplied first information item () relating to a supplied assistance force (Fu) of a brake booster () of the brake-power-assisted brake system, a second input device () for a supplied second information item () relating to a total force (Fg) comprising the assistance force (Fu) and a driver braking force (FI) supplied by activation of an activation element () of the brake-power-assisted brake system, an evaluation device () which is configured to define a third information item relating to a proportional relationship between the total force (Fg) and the assistance force (Fu) taking into account the first information item () and the second information item (), and an output device () which is configured to supply at least one control signal () to at least one component () of the brake-power-assisted brake system taking into account the defined third information item relating to the proportional relationship between the total force (Fg) and the assistance force (Fu).

Control devices for a booster brake system of a vehicle and method for operating a booster brake system of a vehicle

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Remseck, Germany

Remy Garnier