Abstract: In order to impart a pleasant brake pedal feeling to the operator in the transition from a ‘conventional mode’ to a ‘brake-by-wire’ mode, it is disclosed that the travel (s) covered upon application of the brake pedal is determined and subsequently reduced by the operator, and in that upon reduction of the actuating travel (s) by a predetermined value (?s) or in the event of a detected vehicle movement or a positive result of a monitoring function of the connecting and disconnecting device running in the background, the connecting and disconnecting device is activated and the brake booster is actuated by the electronic control unit.

Abstract: A method for monitoring the signal value of a vacuum sensor of a vacuum system in a vehicle, wherein a vacuum generator and a brake booster are provided in the vacuum system, an upper error threshold (?p_vac_errorthreshold) is calculated as a function of the operating states of the vacuum generator and of the brake booster, and wherein an error is identified when the signal value of the vacuum sensor exceeds the current value of the error threshold.

Abstract: An electronically controllable brake system includes an electronic controller installed within the motor vehicle for actuating electrohydraulic components of the brake system and for operating the electrohydraulic components during the process of filled with hydraulic fluid and for removing air from hydraulic components of the brake system. A filling sequence is performed according to a predetermined filling profile that utilizes on-board sensors that detect brake system pressure and identify a defined pressure in conformity with a desired filling profile.

Abstract: A method for the operation of a brake system having two brake circuits, with a recuperative brake, in particular an electrical generator, a master brake cylinder and a brake pedal simultaneously achieve optimized use of the regenerative braking and a constant braking experience for the driver with the highest safety requirements. When there is a braking demand by the driver with an associated desired braking torque and a first condition is met, at least one outlet valve is opened and brake fluid is conducted with an associated volume of brake fluid into at least one reservoir and the at least one outlet valve is then closed if a second condition is met. The first condition is met if a braking variable corresponding to the braking demand is not less than a specified minimum value. The second condition is met if the volume of brake fluid has flowed into the reservoirs.

Abstract: Disclosed is a device for influencing the driving dynamics of a vehicle with an electronic brake system. The device includes a brake actuator for adjusting a brake torque at least one wheel brake of the vehicle. The brake torque can be determined in a torque distributing device according to a yaw torque requirement. A first control unit can be activated in the presence of a critical driving condition as is used to determine a first yaw torque requirement due to driving dynamics control. A management device (12) has a second control unit, which can be activated in the presence of a subcritical driving condition, and a second yaw torque requirement (R:D_GM) can be determined by the second control unit due to driving dynamics control, and the second yaw torque requirement (R:D_GM) can be sent to the torque distributing device (20), and an activated state of the first control unit a signal (I:EBS_Status; R: D_GM; R:[S1, S2, . . .

Abstract: Disclosed is a brake system of the ‘brake-by-wire’ type for actuating a motor vehicle brake system having a brake booster which is operable in response to the driver's input by a brake pedal and to an electronic regulating and control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode.

Abstract: Disclosed is a device for influencing the driving dynamics of a vehicle with an electronic brake system. The device includes a brake actuator for adjusting a brake torque at least one wheel brake of the vehicle. The brake torque can be determined in a torque distributing device according to a yaw torque requirement. A first control unit can be activated in the presence of a critical driving condition as is used to determine a first yaw torque requirement due to driving dynamics control. A management device (12) has a second control unit, which can be activated in the presence of a subcritical driving condition, and a second yaw torque requirement (R:D_GM) can be determined by the second control unit due to driving dynamics control, and the second yaw torque requirement (R:D_GM) can be sent to the torque distributing device (20), and an activated state of the first control unit a signal (I:EBS_Status; R: D_GM; R:[S1, S2, . . .

Abstract: In order to impart a pleasant brake pedal feeling to the operator in the transition from a ‘conventional mode’ to a ‘brake-by-wire’ mode, it is disclosed that the travel (s) covered upon application of the brake pedal is determined and subsequently reduced by the operator, and in that upon reduction of the actuating travel (s) by a predetermined value (?s) or in the event of a detected vehicle movement or a positive result of a monitoring function of the connecting and disconnecting device running in the background, the connecting and disconnecting device is activated and the brake booster is actuated by the electronic control unit.

Abstract: Disclosed is a brake system for a motor vehicle having actuating unit (1) consisting of a brake booster (2) operable by a brake pedal (5) and actuatable independently of the driver's. A master brake cylinder (3) connected downstream of the brake booster (3), to which master brake cylinder wheel brakes (13, 14, 15, 16) of a motor vehicle are connected, an element (21) to detect a deceleration request of the driver, a hydraulic control unit (HCU) (17) for performing driving-dynamics related control operations (ABS, ESP, TCS . . . ), which is connected between the master brake cylinder (3) and the wheel brakes (13, 14, 15, 16) and includes at least one hydraulic pump (24a, b), a first electronic control unit (7) which is associated with the actuating unit (1) and serves to actuate the brake booster (2), a second electronic control unit (12) which is associated with the hydraulic control unit (HCU) (17) and serves to drive the components thereof.

Abstract: Disclosed is a brake system of the ‘brake-by-wire’ type for actuating a motor vehicle brake system having a brake booster which is operable in response to the driver's input by a brake pedal and to an electronic regulating and control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode.

Abstract: A method to prevent injury to a person carrying maintenance work on a brake system is disclosed. During standstill without pedal appication, a brake system having a high-pressure accumulator with an active pressure build-up my clamp on a worker. In order to prevent this danger, the electronic control associated with charging operation of the high-pressure accumulator is deactivated and the separating valve associated with a vehicle axel is closed. Inlet valves associated with the vehicle axle are opened to displace pressure fluid into the wheel brakes while determining values representing the hydraulic pressure introduced into the wheel brakes. The values are evaluated to judge the condition of the wheel brakes.

Abstract: Method for monitoring an electrohydraulic braking system. The volume uptake is determined by the elasticity within the wheel brake that is subjected to certain fluctuations, on the one hand, and to a much greater degree by the clearance that is present, on the other hand. To make a reliable statement relating to the air charge, an estimation of the current clearance is first made, taking three ranges into consideration. If there is a normal clearance, a top evaluation threshold is taken as a basis, which assumes the clearance lies at the upper end of the normal range. When said evaluation threshold is exceeded, an alarm is triggered. If the clearance is assumed to lie at the bottom limit of the normal range, a bottom evaluation threshold applies, however, an alarm is only triggered in this case this situation has occurred several times in succession.

Abstract: The invention discloses methods and control systems for controlling an electronically controllable brake actuating system for automotive vehicles, with a depressurized pressure medium supply reservoir, with at least one pressure source which can be controlled by an electronic control unit. The pressure source is used to apply pressure to the wheel brakes of the vehicle, with pressure sensors and pressure control valves being associated with the wheel brakes. The pressure control valves are controllable in an analog manner by means of an electric variable in dependence on the differential pressure applied to them.

Abstract: Method for Monitoring an Electrohydraulic Braking System Indications of the enrichment of brake fluid with air are obtained from the comparison of the volume uptake of the wheel brakes at a specific wheel brake pressure with an evaluation threshold in a p/v diagram. The volume uptake is determined by the elasticity within the wheel brake that is subjected to certain fluctuations, on the one hand, and to a much greater degree by the clearance that is present, on the other hand.

Abstract: The invention discloses methods and control systems for controlling an electronically controllable brake actuating system for automotive vehicles, with a depressurized pressure medium supply reservoir (4), with at least one pressure source (20) which can be controlled by an electronic control unit (32), said pressure source being used to apply pressure to the wheel brakes (7,8,9,10) of the vehicle, with pressure sensors and pressure control valves (inlet valve 17,18; outlet valve 27,28) being associated with said wheel brakes, said pressure control valves being controllable in an analog manner by means of an electric variable in dependence on the differential pressure applied to them and connecting the wheel brakes (7-10) to the pressure source (20) in a pressure increase phase, being closed or becoming closed in a pressure maintenance phase and connecting the wheel brakes (7-10) to the pressure medium supply reservoir (4) in a pressure reduction phase.

Abstract: The present invention relates to a method of operating a motor vehicle control system with a device adapted to be arranged in a motor vehicle and comprising a nominal value generator, an electric or electronic controller, and a controlled system to which a control element is allocated, especially for the actuation of a controlled brake system, an electric or electromechanical steering system, or similar driver assist systems.

Abstract: The present invention relates to a method and a control system for actuating an electronically controllable brake actuation system for motor vehicles, including a non-pressurized pressure fluid supply reservoir (4), at least one pressure source (20) that can be actuated by an electronic control unit (32) and whose pressure can be applied to wheel brakes (7, 8, 9, 10) of the vehicle, with pressure control valves (inlet valve 17, 18; outlet valve 27, 28) that can be actuated in an analog manner by means of an electric quantity being associated with said wheel brakes and connecting the wheel brakes (7 to 10) optionally with the pressure source (20) or the pressure fluid supply reservoir (4).

Abstract: A method for controlling processes in a motor vehicle is intended, for example, for open-loop/closed-loop control of combustion processes, transmission switching processes or braking processes. An engine characteristics map is formed by operating quantities of the respective process and is represented by a number of support points. In the corresponding control unit, for each support point a piece of information about the value of the map at the position of the support point is provided. In the open-loop/closed-loop control of the process, for a determined working point of the process at least one map value that is decisive for this working point is determined from the map and taking account of this, at least one control quantity for the emission of a control signal is formed. The map is automatically adapted to a changed process behavior. For the adaptation, a correction value is determined for a certain operating phase of the map.