Abstract: A method for regulating a pressure setting in a braking system (1), having a pressure application device (3) and an overflow valve (7), comprising the steps of receiving (10) a pressure demand (30) and determining (11) a pressure demand gradient (32) from the pressure demand (30), determining (12) a volume flow requirement (33) from the pressure demand gradient (32), generating a hydraulic pressure (13) by means of the pressure application device (3), determining an actual volume flow (14) of the pressure application device (3), regulating the overflow valve (7) on the basis of the pressure demand (30) and the difference between the actual volume flow (14) and the volume flow requirement (33, 34, 35), wherein a special mode is activated (36) when the pressure demand gradient (32) exceeds a gradient limit value, a minimum value (22) for the volume flow requirement (33, 34, 35) being set in the special mode on the basis of a last maximum (21) of the volume flow requirement (33, 34, 35), and the special mode bei

Abstract: In a method for optimizing the pressure setting accuracy, a hydraulic pressure is built up according to a pressure requirement of a hydraulic pump, and overflow control is performed using an analog-controlling hydraulic valve and a known control characteristic curve of the analog-controlling hydraulic valve, which overflow control counteracts a pressure build-up produced by the hydraulic pump that exceeds the pressure requirement. In addition to the known control characteristic curve of the analog-controlling hydraulic valve, at least one additional valve characteristic is taken into account for the overflow control.

Abstract: A switchover method for a solenoid valve, operated in analogized form, in an electrohydraulic brake system, in which method the solenoid valve can assume a closed position, an open position and a multiplicity of intermediate positions in accordance with electrical actuation or regulation, and wherein the actuation or regulation is performed as a function of a known current-pressure characteristic curve of the solenoid valve. Upon a switchover of the solenoid valve, a pressure-dependent and/or current-dependent magnetic hysteresis characteristic of the solenoid valve is compensated directly without prior modification of the present hysteresis characteristic. An electrohydraulic brake system and the use of the brake system is also disclosed.

Abstract: In a method for optimizing the pressure setting accuracy, a hydraulic pressure is built up according to a pressure requirement of a hydraulic pump, and overflow control is performed using an analog-controlling hydraulic valve and a known control characteristic curve of the analog-controlling hydraulic valve, which overflow control counteracts a pressure build-up produced by the hydraulic pump that exceeds the pressure requirement. In addition to the known control characteristic curve of the analog-controlling hydraulic valve, at least one additional valve characteristic is taken into account for the overflow control.

Abstract: A control valve conditioning method in an electrohydraulic pressure control unit comprising at least one electrically triggered solenoid valve that is controlled in an analog manner. The solenoid valve is operated at a specific operating current according to a functional correlation or characteristic diagram between the valve current and the differential pressure characteristic curve when the pressure is controlled, said functional correlation or characteristic diagram being stored in the pressure control unit. The method comprises the following steps: a) temporarily applying at least one anti-hysteresis pulse to the solenoid valve during which a current is set far below or far above the operating current in the valve; b) applying the anti-hysteresis pulse at the desired operating current before or during controlled operation, and c) applying the anti-hysteresis pulse wherein the duration is limited in such a way that the anti-hysteresis pulse has largely no influence on the brake pressure.

Abstract: A method for adjusting the brake play of a hydraulic brake system, for a motor vehicle having at least one brake caliper with a brake piston, a hydraulic pump connected with a brake caliper, and an electric motor driving the hydraulic pump. The following steps are performed: detecting a first rotational position of a pump part by a position sensor and generating a reduced pressure in the pressure chamber, which causes the piston to reset, by suction of a volume of the brake medium determined by a predefined target rotational angle of the pump part, via a suction-side hydraulic connection with the pressure chamber, By controlling the electric motor by means of a PWM signal the predefined target rotational angle of the pump part causes a rotation of the pump part into a second rotational position, wherein the controlled variable is determined depending on the deviation of the actual rotational angle, determined based on the second rotational position, from the target angle.

Abstract: A vacuum brake booster and a method of operation of a vacuum brake booster of a vehicle brake system is disclosed. The vacuum brake booster includes a housing subdivided into at least one vacuum chamber and at least one working chamber. The vacuum chamber is connected to a vacuum source by way of a vacuum port. A sensor unit is associated with the vacuum chamber and is configured for sensing a pressure in the vacuum chamber and supplying a sensed pressure value to an electronic control unit (ECU). The ECU includes an evaluating unit for evaluating the sensed pressure value and calculating the operating point of the vacuum brake booster solely on the basis of the sensed pressure in the vacuum chamber. Plausibilization of the sensed pressure value is performed to monitor the overall system and identify defects of the sensor unit or the vacuum brake booster.

Abstract: In a method for controlling the pressure buildup in an electronically controllable brake system, preferably for use in motor vehicles, including a master brake cylinder, in particular a tandem master brake cylinder (TMC), a vacuum brake booster (booster), at least one additional pressure source for brake force assistance, preferably a hydraulic pump which is drivable by a controlling unit and the pressure of which can be applied to wheel brakes of the vehicle, an approach of a point where the auxiliary-force to actuating-force ratio (operating point) of the vacuum brake booster (booster) falls below a predetermined ratio is detected, that a pressure gradient in the master brake cylinder (TMC pressure gradient) is detected, and that in the event of a detected approach of the operating point of the booster and when a pressure gradient limit value of the detected TMC pressure gradient is exceeded, the additional pressure source is activated for brake force assistance, for the purpose of building up additional br

Abstract: A control valve conditioning method in an electrohydraulic pressure control unit comprising at least one electrically triggered solenoid valve that is controlled in an analog manner. The solenoid valve is operated at a specific operating current according to a functional correlation or characteristic diagram between the valve current and the differential pressure characteristic curve when the pressure is controlled, said functional correlation or characteristic diagram being stored in the pressure control unit. The method comprises the following steps: a) temporarily applying at least one anti-hysteresis pulse to the solenoid valve during which a current is set far below or far above the operating current in the valve; b) applying the anti-hysteresis pulse at the desired operating current before or during controlled operation, and c) applying the anti-hysteresis pulse wherein the duration is limited in such a way that the anti-hysteresis pulse has largely no influence on the brake pressure.

Abstract: A vacuum brake booster and a method of operation of a vacuum brake booster of a vehicle brake system is disclosed. The vacuum brake booster includes a housing subdivided into at least one vacuum chamber and at least one working chamber. The vacuum chamber is connected to a vacuum source by way of a vacuum port. A sensor unit is associated with the vacuum chamber and is configured for sensing a pressure in the vacuum chamber and supplying a sensed pressure value to an electronic control unit (ECU). The ECU includes an evaluating unit for evaluating the sensed pressure value and calculating the operating point of the vacuum brake booster solely on the basis of the sensed pressure in the vacuum chamber. Plausibilisation of the sensed pressure value is performed to monitor the overall system and identify defects of the sensor unit or the vacuum brake booster.

Abstract: The invention relates to a method for controlling the driving stability of a vehicle, wherein it is determined when a stable or unstable driving behavior prevails whether a tendency to a subsequent unstable driving behavior exists as a result of a highly dynamic inward swerve. In order to provide a method for controlling driving stability, which allows a reaction to predicted unstable driving situations by means of an intervention diminishing or avoiding critical driving situations, the steering force and/or the steering angle of a steering handle is corrected in this case in such a manner that when the steering handle is operated, the driver is assisted in the direction of an understeering vehicle course.

Abstract: Disclosed is a method and brake system for modulating brake pressures in a motorcycle brake system with anti-lock function and integral braking function. Inlet and outlet valves (9, 10) are provided in each case for brake slip control in a front-wheel brake circuit (1) and a rear-wheel brake circuit (2). Active pressure buildup in a brake circuit other than the brake circuit actuated by the motorcyclist is performed by the integral braking function using a pump (15) and at least one separating and change-over valve (11, 18) in at least one of the brake circuits (1, 2). In the brake circuit (1, 2) being initiated by the integral function, brake pressure modulation is controlled or regulated using the change-over valve (18) and/or the separating valve (11) during brake slip control.

Abstract: A method for suppressing a lateral rollover tendency of an at least two-axle and at least two-track vehicle, wherein when a first threshold value of a dynamic and/or static quantity correlating with a vehicle lateral acceleration is exceeded, maximum brake pressures are introduced into the wheel brakes of the vehicle as a rollover prevention, with the threshold value representing a value at which a risk of rollover is encountered at a permissible vehicle load of any type; and a second threshold value of a quantity correlating with the vehicle lateral acceleration is provided, at which low brake pressures are introduced, which is lower than the first threshold value, and wherein the quantity correlating with the vehicle lateral acceleration represents a low rollover tendency level.

Abstract: In a method for reducing the fuel consumption of a motor vehicle, a driver's request for a uniform vehicle speed is determined and once this request for a uniform vehicle speed has been identified, the modifications to the vehicle speed, which are not initiated by the driver, are at least partly adjusted by control in order to obtain the lowest possible fuel consumption, for example of gasoline or diesel, for the driving engine of the vehicle.

Abstract: In a method for determining or calibrating the brake control characteristic of a vacuum brake booster of a vehicle brake system, the pressure in the working chamber or the pressure difference between the working chamber and the vacuum chamber of the vacuum brake booster is determined, and either the brake control characteristic is determined on the basis of the determined pressure or pressure difference of the vacuum brake booster, or the stored brake control characteristic is changed according to the determined pressure or pressure difference.

Abstract: In a method for controlling the pressure buildup in an electronically controllable brake system, preferably for use in motor vehicles, including a master brake cylinder, in particular a tandem master brake cylinder (TMC), a vacuum brake booster (booster), at least one additional pressure source for brake force assistance, preferably a hydraulic pump which is drivable by a controlling unit and the pressure of which can be applied to wheel brakes of the vehicle, an approach of a point where the auxiliary-force to actuating-force ratio (operating point) of the vacuum brake booster (booster) falls below a predetermined ratio is detected, that a pressure gradient in the master brake cylinder (TMC pressure gradient) is detected, and that in the event of a detected approach of the operating point of the booster and when a pressure gradient limit value of the detected TMC pressure gradient is exceeded, the additional pressure source is activated for brake force assistance, for the purpose of building up additional br

Abstract: A method for allocating wheels of a motor vehicle to a respective vehicle axle, each of the wheels includes an inflation tire whose tire pressure is monitored by a tire pressure monitoring device including at least one transmitting module in each wheel, and at least one receiving module arranged at or in the vehicle and one evaluation module, with each transmitting module transmitting tire pressure information and a wheel-specific identification number to the receiving module, which are sent to an evaluation process in the evaluation module, and tire pressure changes of the wheels are considered for the allocation, with the wheels having almost identical tire pressure changes being allocated to one vehicle axle by taking into account a vehicle-specific axle load.

Abstract: Disclosed is a method for improving a cruise control system in a motor vehicle having a navigation system. The cruise control system determines the possibility or necessity for the driver to take over control of the vehicle in the immediate future and the driver is alerted to the fact that a take-over is imminent or the attention of the driver is increased, when the possibility or necessity of a take-over of the vehicle control by the driver is detected. Also, the cruise control system determines if the speed of the vehicle is higher than a safe speed for the imminent driver reaction. If the speed is determined to be to high, the cruise control system gently reduces the speed of the vehicle.

Abstract: The described method and computer program product for calibrating one or more electrically actuated hydraulic valves of analog operation render it possible to facilitate the provision of precise actuation characteristic curves in a controlled motor vehicle brake system. To achieve this aim, at least one or respectively one characteristic curve is initially predetermined during the operation of a brake device, and the predetermined actuation characteristic curve is corrected using a learning method during driving of the vehicle.

Abstract: The invention relates to a method for improving the control behavior of motor vehicle control systems such as ABS, ESP, etc. comprising electrically driven hydraulic pumps, inlet and outlet valves and low-pressure accumulators, wherein the low-pressure accumulators accommodate, at least in part, pressure fluid that is discharged from wheel brakes in a control operation, wherein the hydraulic pumps are used to return the pressure fluid into a master cylinder, in particular tandem master cylinder, wherein the delivery behavior of the hydraulic pumps is controlled in dependence on pressure values, and wherein the actuation of the hydraulic pumps takes place in conformity with demand, i.e.