Abstract: The invention relates to a device for determining a tendency to tilt about the longitudinal axis and a tendency to turn about the vertical axis of a vehicle. The detection system is characterized by a lateral acceleration sensor producing a lateral acceleration signal, a yaw rate sensor producing a yaw rate signal, a steering angle sensor producing a steering angle signal, wheel speed sensors producing the rotation signals of the wheels, and which includes a controller which, in response to the steering angle, the steering velocity and the vehicle speed, determines a tendency to tilt about the longitudinal axis of a vehicle and which, in response to the lateral acceleration sensor, the yaw rate sensor, the steering angle sensor and the wheel speed sensors determines the tendency to turn about the vertical axis of the vehicle, and with the controller generating a triggering signal for at least one passenger protection means depending on the extent of these tendencies.

Abstract: The invention relates to a method of calibrating a sensor, in particular a yaw rate sensor, in which sensor values (Ysensor) and associated temperature values (T) are stored in the shape of reference points in a non-volatile memory of the sensor, in which case the values (Ysensor, T) are determined during a calibration mode in which the sensor is exposed to a predefined temperature profile. In order to further improve the accuracy of the calibration, the invention discloses that the values (Ysensor, T) determined in the calibration mode are used to determine coefficients (C0, . . . , Cn-1, Cn) of a polynomial of nth order, and these coefficients are stored.

Abstract: A motor vehicle energy-saving assistance system which helps to save energy and optimize emissions. An electronic device may be permanently installed in the vehicle, or a portable computer containing an energy-saving program may be used. The device or program exchanges data with several vehicle control devices. The vehicle control devices carry out specific driver-assist or vehicle functions and the further data channel provides a connection between the device or the portable computer and the vehicle control device(s). At least one unidirectional wireless, inductive or capacitive data transmission is enabled. A driver display device is controlled by the energy-saving program and the energy-saving program determines the actual condition of the vehicle and the estimated future condition in order to calculate the energy-saving measure(s). A motor vehicle equipped with an interface which provides access to the vehicle onboard bus system is also described.

Abstract: The invention relates to a method of calibrating a sensor, in particular a yaw rate sensor, in which sensor values (Ysensor) and associated temperature values (T) are stored in the shape of reference points in a non-volatile memory of the sensor, in which case the values (Ysensor, T) are determined during a calibration mode in which the sensor is exposed to a predefined temperature profile. In order to further improve the accuracy of the calibration, the invention discloses that the values (Ysensor, T) determined in the calibration mode are used to determine coefficients (C0, . . . , Cn-1, Cn) of a polynomial of nth order, and these coefficients are stored.

Abstract: In a method of controlling a hydraulic vehicle brake system with active hydraulic brake force boosting, wherein the driver can introduce brake pressure into a master brake cylinder with an actuating device, wherein the pressure introduced by the driver is boosted by an active hydraulic pressure increasing unit, a braking request or a suspected braking request of the driver is determined and, when a braking request or a suspected braking request of the driver is detected, a separating valve that is arranged in a line connecting the master brake cylinder and the hydraulic pressure increasing unit is opened or remains open and the pressure increasing unit is actuated for pressure generation purposes.

Abstract: Disclosed is a pressure control device for varying the brake pressure in at least one wheel brake (3) of a vehicle, which includes at least one inlet valve and one outlet valve (1, 2) for the variation of the brake pressure, comprising a brake pressure channel (4) which connects a pressure fluid source (8) to the wheel brake (3) and in which the inlet valve (1) is mounted, as well as a return channel (5) which connects to the brake pressure channel (4) between the inlet valve (1) and the wheel brake (3) and in which the outlet valve is mounted (2), with the return channel (5) being connected either to a low-pressure accumulator (6) or an unpressurized supply tank.

Abstract: A method of monitoring tire pressure in a motor vehicle employs an indirectly measuring tire pressure monitoring system (DDS) and a directly measuring tire pressure monitoring system (TPMS) with two pressure sensors for determining tire pressure and/or tire pressure loss. Depending on the arrangement (axlewise, sidewise or diagonal) of the pressure sensors at the vehicle wheels, a reference value (DIAG, SIDE, AXLE) of the indirectly measuring tire pressure monitoring system (DDS) is used as the main reference value for detecting tire inflation pressure loss.

Abstract: The invention relates to a device for determining a tendency to tilt about the longitudinal axis and a tendency to turn about the vertical axis of a vehicle. The detection system is characterized by a lateral acceleration sensor producing a lateral acceleration signal, a yaw rate sensor producing a yaw rate signal, a steering angle sensor producing a steering angle signal, wheel speed sensors producing the rotation signals of the wheels, and which includes a controller which, in response to the steering angle, the steering velocity and the vehicle speed, determines a tendency to tilt about the longitudinal axis of a vehicle and which, in response to the lateral acceleration sensor, the yaw rate sensor, the steering angle sensor and the wheel speed sensors determines the tendency to turn about the vertical axis of the vehicle, and with the controller generating a triggering signal for at least one passenger protection means depending on the extent of these tendencies.

Abstract: The present invention relates to a system for transmitting tire condition variables from a transmission device mounted on a motor vehicle to an electronic evaluating or control unit arranged in the area of the vehicle body, which is detachably fastened to a motor vehicle wheel described hereinbelow for providing an electromechanical compound arrangement. Further, a transmission device is disclosed wherein tire condition variables can be detected, and wherein a coupling device is integrated into the wheel hub (3) and composed of a rotor and a non-rotating stator for producing a field coupling, and its one or more field coupling elements are arranged opposite one another, separated by a narrow air slot (24), and energy and/or signals are coupled by means of electric fields and/or magnetic fields and/or electromagnetic fields.

Abstract: The invention discloses a method for compensating temperature in a system for tire pressure monitoring which is especially implemented by detecting a tire pressure and/or by detecting a tire pressure loss. The method is especially characterized in that the temperature is compensated by determining the gas temperature in the tire by way of at least two items of temperature information and by taking the determined temperature as a basis for said tire inflation monitoring. One significant advantage of this method involves that externally active temperature changes, such as a heat-emitting brake disc causing the wheel rim of the tire and, hence, also a temperature sensor arranged thereat to be heated more intensely than the gas in the tire, do not lead to an indication error with respect to the tire pressure (or a spurious alarm).

Abstract: In a method for improving the control response of an anti-lock control system (ABS) during braking operations at a high coefficient of friction, the brake pressure control thresholds, in particular the intervention or application thresholds of the anti-lock control system (ABS) are adapted dynamically to the adherence abilities of the respective vehicle wheel or the tire.

Abstract: In a method of controlling a hydraulic vehicle brake system with active hydraulic brake force boosting, wherein the driver can introduce brake pressure into a master brake cylinder by means of an actuating device, preferably a brake pedal, wherein the pressure introduced by the driver is boosted by means of an active hydraulic pressure increasing unit, in particular a hydraulic pump, a braking request or a suspected braking request of the driver is determined and, when a braking request or a suspected braking request of the driver is detected, a separating valve that is arranged in a line connecting the master brake cylinder and the hydraulic pressure increasing unit is opened or remains open and the pressure increasing unit is actuated for pressure generation purposes.

Abstract: The invention discloses a method for compensating temperature in a system for tire pressure monitoring which is especially implemented by detecting a tire pressure and/or by detecting a tire pressure loss. The method is especially characterized in that the temperature is compensated by determining the gas temperature in the tire by way of at least two items of temperature information and by taking the determined temperature as a basis for said tire inflation monitoring. One significant advantage of this method involves that externally active temperature changes, such as a heat-emitting brake disc causing the wheel rim of the tire and, hence, also a temperature sensor arranged thereat to be heated more intensely than the gas in the tire, do not lead to an indication error with respect to the tire pressure (or a spurious alarm).

Abstract: A method for determining parameters for the viscosity or temperature of a brake fluid of a vehicle by way of a predetermined pressure build-up within time limits in at least one defined section of a brake circuit and for detecting a pressure in the said section and/or a time which is required for the build-up of the said pressure.

Abstract: The pressure in a motor vehicle tire can be determined by means of a ‘wheel-independent’ device (1) that is in a largely rigid manner connected mechanically to an element (2) of the vehicle body (3, 14) oscillating with the motor vehicle wheel (4). In order to determine the—preferably absolute—tire pressure by combining the evaluation of rotational speed data and axle frequency analysis, said device (1) includes a signal pre-processing element (6) provided with electronic components for processing the sensor signals, said element being connected to a magnetic sensor element (7) and an acceleration sensor element (8) or to a combined magnetic/acceleration sensor element (5) by means of an electrically conductive element connection (9), wherein the magnetic sensor element (7) or the magnetic/acceleration sensor element (5) is operatively connected to a magnetic encoder (16) arranged on the wheel side.

Abstract: In a method for improving the control response of an anti-lock control system (ABS) during braking operations at a high coefficient of friction, the brake pressure control thresholds, in particular the intervention or application thresholds of the anti-lock control system (ABS) are adapted dynamically to the adherence abilities of the respective vehicle wheel or the tire.

Abstract: In a method of improving the control behavior of a motor vehicle with anti-lock control, in particular for improving the brake performance on a homogeneous ground, where forces or pressures that act on wheels and tires are determined by sensors and used as control quantities for a motor vehicle control system, both front wheels are adjusted to their brake force maximums, and the front wheel with the lower instantaneously measured brake force or brake pressure is adjusted by a specific brake pressure build-up to its brake force maximum, whereas the other front wheel and the rear wheels are operated by means of a significantly decelerated brake pressure build-up.

Abstract: The present invention relates to a system for transmitting tire condition variables from a transmission device mounted on a motor vehicle to an electronic evaluating or control unit arranged in the area of the vehicle body, which is detachably fastened to a motor vehicle wheel described hereinbelow for providing an electromechanical compound arrangement.

Abstract: The present invention relates to a method for determining parameters for the viscosity or temperature of a brake fluid of a vehicle which is supplied to the wheel brakes by way of a motor-and-pump assembly equipped with actuatable valves and a hydraulic unit, with which an electronic control unit is associated. To ensure a high degree of control dynamics even at low temperatures, it is suggested that the temperature of the hydraulic unit is measured by way of a temperature-sensitive element which connects the motor-and-pump assembly to the electronic control unit, and the parameters are determined by way of the temperature of the hydraulic unit.

Abstract: The invention relates to a method and a tire pressure monitoring system for motor vehicles. The system comprises a direct-measuring tire pressure measuring device on each individual wheel and an indirect-measuring device that detects the tire pressure exclusively by comparing and evaluating the rotational behavior of the individual vehicle wheels. Both pressure measuring systems are structurally and/or functionally united, thereby enabling position detection, among others.