Patent ID: 9199617
Filing Date: 2015-12-01
Classification: B60T

Abstract:
1. A method for operating a hydraulic motor-vehicle brake system in a braking situation that requires the creation of a hydraulic-pressure difference at opposite left and right front and/or rear wheel brakes arranged oppositely to one another on a front and/or rear vehicle axle, wherein a first slip-regulating valve device for a decoupling of a respective wheel brake from a hydraulic-pressure generator and a second slip-regulating valve device for a reduction of hydraulic pressure at the respective wheel brake have been assigned to each of the opposite wheel brakes, comprising the following steps: building up a hydraulic pressure at the opposite wheel brakes within a braking procedure; registering a requirement to create a hydraulic-pressure difference at the opposite wheel brakes; driving one or more of the slip-regulating valve devices assigned to the opposite wheel brakes for the purpose of creating the hydraulic-pressure difference by differing hydraulic pressures being set at the opposite wheel brakes; and, as a reaction to a driver request, increasing the hydraulic pressure at one of the opposite wheel brakes, inclusive of the other one of the opposite wheel brakes at which a lower hydraulic pressure is to be set, while maintaining the hydraulic-pressure difference by transfer of hydraulic fluid from the hydraulic-pressure generator via the first slip-regulating valve device to the opposite wheel brakes.