Patent ID: 6315372
Filing Date: 2001-11-13
Classification: B60T

Abstract:
A brake pressure control device of a brake system of a road vehicle with an automatic control of at least one of a main clutch and a transmission maintaining a driving condition during traffic-caused stoppage phases by controlling brake pressure into at least one wheel brake of the road vehicle, comprising apparatus configured to process sensor output signals of a sensor arrangement according to predetermined actuation criteria after a stoppage of the road vehicle achieved by controlling a brake pressure into the wheel brake utilized for stoppage braking to achieve a secure stoppage of the road vehicle and to permit an arbitrary continuation of the stoppage braking by maintaining the brake pressure held independently of an intervention by the driver such that, when a driving operation is resumed detection of by at least an output signal of an accelerator pedal position generator, automatic release of the wheel brake previously utilized for the stoppage braking is provided by switching off the brake pressure, wherein the arbitrary continuation of the stoppage braking activated only if a driver starts an activating activity that is recognized as a respective driver's wish and is detected by the sensor arrangement, and, after a stoppage of the road vehicle achieved by the stoppage braking, a time period of predetermined duration is automatically triggered during which a change between two conditions of the control device is achieved by driver intervention, whereby in the one condition of the control device, only a brake pressure dependent on the intervention by the driver is adjustable, and in the other condition of the control device necessarily maintains a braking pressure which is independent of the driver intervention, the time period being triggered by an operating activity recognized as the driver's wish and the change, which is achievable by the driver during the time period, replaces the condition for maintaining the brake pressure independent of the intervention by the driver by the condition for adjustment of a brake pressure dependent on the intervention by the driver, and, at the end of the time period, the control device is brought into a condition thereof for the adjustment of a brake pressure dependent on the driver intervention.