Continental Teves, Ag and Company Ohg

Holger Esslinger

Bernd Ummer

Jürgen Kröber

Thomas Kuzel

Jürgen Krüber

Disclosed is a method for increasing the braking effect in a motor vehicle having a hydraulic brake system. An energy supply unit, which is used to increase the brake pressure in at least one wheel brake, is switched on when the brake pressure adjusted by the driver in a master brake cylinder exceeds a first activation threshold value, which is determined depending on a detected vehicle deceleration, and the energy supply unit is switched off when the brake pressure reaches a predetermined bottom threshold value at a specific instant. According to the method, within an interval beginning at that specific instant, it is checked whether the brake pressure (p) rises again using a comparison between the brake pressure and a second activation threshold (p) that is reduced compared to the first activation threshold (p) and/or using a comparison between a brake pressure gradient and a predetermined threshold value, and in that the energy supply unit is switched on again when a new rise of the brake pressure (p) has been detected. Also disclosed is a device that is suitable for implementing the method.

Method for supporting a brake system in case of reduced effectiveness of the vehicle brake system

Disclosed is a method for increasing the braking effect in a motor vehicle with a hydraulic brake system. In the method, in case of a reduced effectiveness of the brake system, a brake pressure in at least one wheel brake is increased by switching on an energy supply unit. A check is made whether a brake pressure (p) in a master brake cylinder () reaches a predetermined threshold value (p), and that the energy supply unit () is disabled upon expiry of a predetermined length of time (&#x394;t), which begins the instant it is detected that the brake pressure (p) has reached the predetermined threshold value (p). Also disclosed is a device that is appropriate to implement the method.

Method for supporting a brake system in case of reduced effectiveness

Disclosed is a method for increasing a braking effect in a motor vehicle with a hydraulic brake system. An energy supply unit, which is used to increase the brake pressure in at least one wheel brake, is switched on when the brake pressure adjusted by the driver in a master brake cylinder exceeds an activation threshold, which is determined depending on a detected vehicle deceleration. A check is made whether an unbraked trailer is coupled to the vehicle, and in that the activation threshold Pis raised, if the presence of an unbraked trailer that is coupled to the vehicle is detected.

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Alzey, Germany

Holger Esslinger