US 2012/0074771 A1Published application

Method for Operating a Hydraulic Vehicle Braking System that has an Anti-Lock Control Unit

AssigneeRobert Bosch GmbH

InventorsHerbert Vollert, Reinhard Weiberle, Timo Jahnz, Volker Mehl, Jens Kolarsky, Stephan Hoenle, Frank Kneip

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Abstract

A method for operating a hydraulic vehicle braking system that has an anti-lock control unit is disclosed. The system includes a brake master cylinder having an electromechanical brake booster. As the pressure level of the vehicle braking system decreases during an anti-lock control, in which all vehicle wheels are controlled, the boosting force of the brake booster is reduced in an anti-lock control of this type.

Claims8

Dependent claims

A method, comprising:

operating a hydraulic vehicle brake system which has an anti-lock control device and a master brake cylinder with a controllable brake booster, at least one wheel brake, which is connected to the master brake cylinder via a brake pressure-increasing valve, and a brake pressure-decreasing valve by which a wheel brake pressure of the at least one wheel brake is configured to be decreased;
and
reducing an extraneous force of the brake booster during an anti-lock control operation.

Dependencies are inferred from the claim text.

Facts

Application: 13/201,021Filed 14 Dec 2009
Priority: DE 102009000781.411 Feb 2009
Published: 29 Mar 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

B60T 8/4872
Closed systems: pump-back systems
B60T 8/4291
Pump-back systems: having means to reduce or eliminate pedal kick-back
B60T 13/686
By electrically-controlled valves: in hydraulic systems or parts thereof
B60T 13/745
With electrical assistance or drive: acting on a hydraulic system, e.g. a master cylinder

Family

US 8,840,198 B2Related patent
US 2012/0074771 A1This patent

From the US filing history. Foreign family members aren’t listed.

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