Abstract: An electric motor/pump system which minimizes physical size. The electric motor consists of a pot-shaped housing whose open end is sealed by a plate. The pump consists of an essentially rectangular block in whose middle plane holes are drilled for pump pistons. The plate features a base plate and also ramp-like edges. The pump block features a recess. During assembly of electric motor and pump, the base plate of the plate is located in the recess of the pump block.

Abstract: The present invention is a control circuit for controlling the driving stability of a motor vehicle, in which the desired value of the yaw rate is calculated by a vehicle model. To make it possible to calculate a value of the highest accuracy possible using the vehicle model circuit at both very high and very low velocities, at least two vehicle models, which are associated with suitable velocity ranges, are used within the vehicle model circuit. The changing over between the two models is performed as a function of the range of velocity being used. Advantageous variants of the inventions use the hysteresis of the two velocity threshold values, at which the changeover is performed, and avoid jumps in the output signal of the vehicle model circuit during changing over between the models.

Abstract: A control process for the driving stability control of a motor vehicle is provided. The signal sent out by a control law unit to generate the necessary additional torque is sent to a distribution logic unit, which subsequently sends the pressure signals used to actuate the individual wheel brakes. The superimposition of these pressure signals and the pressure signal characterizing the driver's desire to brake (as well as the subsequent superimposition of these adjusting signals to adjusting signals arriving from other brake pressure controllers, such as ABS, TSC, EBV) leads to interfaces in which differing physical variables must be compared or superimposed. The necessary conversion of these variables is expensive and increases the inaccuracy of the control system. Simplified interfaces are provided, to achieve improved processing of the brake pressure desired by the driver, and possibly to avoid the conversion of the individual signal variables.

Abstract: An appliance which, through motor-driven operation, is movable toward a closing edge, in particular, for use with window regulators and sliding roofs of automotive vehicles. For this purpose, the number of revolutions of the motor is permanently detected, with the number of revolutions of the motor being measured in successive measuring intervals. The number of revolutions is to be a measure of the force acting on the pane. Respectively the last four measured values are detected in a sliding register and are subjected to evaluation. For this purpose, first a start-up value is detected. The start-up value respectively is the third last measured value n.sub.i-3 if the difference D between the current measured value and the third last measured value does not exceed a predetermined differential threshold D.sub.max. For, in that case, the start-up value remains unchanged. Subsequently, the difference A is formed between the start-up value and the current value n.sub.i.

Abstract: Apparatus for controlling an automotive vehicle is provided. The vehicle has a plurality of wheels, each wheel having an individually operable brake. The apparatus comprises a mechanism for determining the steering angle of the vehicle. A yawing moment controller receives the steering angle and determines a moment that is applied to the vehicle to prevent an undesirable yaw angle, yaw rate or yaw acceleration. Distribution logic receives the output of the yawing moment controller. The distribution logic determines a respectively different weighted coefficient for each individual brake, and an individual braking pressure to be applied to each respective one of the brakes based on the moment and the respective weighted coefficient of the one brake.

Abstract: A control process for controlling the driving stability of a motor vehicle is provided. The difference between the actual value of the yaw rate and the desired value is measured in a control process to form the additional yawing moment for stabilizing the vehicle. Instead of using yaw sensors for the direct measurement of the yaw rate (yaw angular velocity), two lateral acceleration meters are provided in the sensor. Advantageous variants include the use of the yaw acceleration and/or its derivative as the controlled variable, instead of the yaw rate.

Abstract: A method for controlling the brakes in an automotive vehicle. The vehicle has a velocity and a plurality of wheels, each wheel having an angular velocity and a brake which is operable by applying a pressure agent to the brake. An amount of the pressure agent to be applied to, or released from, each brake, individually, to implement a desired braking operation is determined. Switching times corresponding to the amounts of the pressure agent are calculated for opening and closing the inlet valve or outlet valve of each respective brake, individually. An estimated vehicle velocity and an estimated wheel angular velocity which result from applying the pressure agent to the brakes are determined. The actual velocity of the vehicle and the actual angular velocity of the wheels are determined by measuring the angular velocity, and determining the velocity based on the measurement.

Abstract: A metal heat dissipation element is made an integral part of a metal houses of a motor, then a bearing plate of plastic material is injection-molded onto the housing. Preferred embodiments relate to the increased strength of the housing for which purpose additional plastic components in the form of webs are produced in the injection-molding operation.

Abstract: A transmission gear for use with systems for cleaning windscreens, window-panes or optical instruments, comprising a wiper arm supported by a carriage performing reciprocating movements, and a gear for transforming rotary movements into oscillating movements, which cooperates with a driving means and actuates the carriage, with the gear, on the driven side, being connected to a shaft performing oscillating movements.

Abstract: A hydraulic motor vehicle brake installation, the braking pressure modulation of which occurs over adjustable wing cell pumps, as space-saving solution it is proposed to have all the required wing cell pumps driven over a common shaft by a turning-rate stabilized electric motor. An individual control of each individual wing cell pump occurs through the drive of a lift ring each by one proportional magnet per wing cell pump.

Abstract: An electrohydraulic pressure control mechanism, with electromagnetically controllable hydraulic valves arrayed on a valve housing, with coils which have some of their parts overhanging the valve housing, and the parts being equipped with contact elements. A molding box enclosing the coils and the contact elements, with the molding box or part thereof being suitable for installation of an electronic controller or parts of terminals for such. The molding box featuring cavities extending from its set-down surface on the valve housing to the far outer surface of the molding box; and the cavities taking on the form of lead-through opening in the proximity of coils. This assures a simplified attachment of coil casings to the valve domes.

Abstract: An electrohydraulic pressure control device including electromagnetically operable hydraulic valves (solenoid valves) which are arranged on a valve-accommodating member, coils which project from the valve-accommodating member, the coils having electric contact elements on their parts projecting from the valve-accommodating member, a cover which covers the projecting coil parts and the contact elements, a carrier element to accommodate the coils, with projections being shaped on the bottom side of the substantially plate-shaped carrier element close to the coils, which projections enclose the electric contact elements projecting from the coils, the projections having cavities for accommodating adhesive material which establishes a connection with the projections by enclosing the contact elements in an operative manner.

Abstract: A sealing element is fitted between the outside periphery of the magnet armature and the inside periphery of the valve housing and, parallel to the sealing element, an orifice is fitted in the armature, thereby establishing a permanent pressure fluid connection between the pressure fluid chamber disposed inside the magnet armature and the pressure fluid chamber disposed outside the armature.

Abstract: The present invention relates to a hydraulic brake system which operates by the feedback principle during brake slip control operations and includes a self-priming pump that aspirates pressure fluid from a pressure fluid reservoir for traction slip control operations. In order to improve the delivery rate of the pump, having a parallel arrangement of the two suction valves, a special construction of the pump assembly is proposed, wherein the two suction valves are integrated in the pump housing. Advantageously, the suction valves are in axially opposed relationship, and the first suction valve is arranged on the movable piston, and the second suction valve is connected with a screw cap. Further, a pump for a slip-controlled hydraulic brake system according to the present invention is suggested having at least one suction valve with a valve seat, a closure member and a valve spring, the preload of the valve spring being variable in response to the position of a delivery piston.

Abstract: A control circuit for use with an automotive vehicle motion control system such as an anti-lock control (ABS) for an automotive vehicle brake system and/or traction slip control (TCS) includes circuits for processing sensor signals and for generating braking pressure control signals to enable hydraulic valves inserted into pressure fluid conduits of the brake system. The valve control signals are derived from the sensor signals by means of a single-chip microcontroller which processes the data in two successive or time-offset calculating operations performed according to different algorithms. The results of the calculating operations are temporarily stored and compared for coincidence. When the results differ from each other, their deviation is signaled to a monitoring circuit. In addition, the microcontroller is continuously tested by switch-on tests and, during operation, by cycle tests, self-tests, signature analyses and other known methods of error detection.

Abstract: A system for cleaning light transmitting elements such as windscreens, window-panes or optical instruments, comprising a wiper arm supported by a carriage performing reciprocating movements, and a intermediate gear means for transforming rotary movements into oscillating movements, with the intermediate gear means cooperating with a driving means and actuating the carriage and, on the driven side, being in communication with a shaft performing oscillating movements. The shaft is the driving part of a transmission gear means for oscillating movements. The part of the transmission gear means performing movements on the driven side actuates the carriage through a tensile and/or thrust member.

Abstract: Hydraulic braking system with slip control, comprises a working piston guided within the brake pressure generator, a booster piston of a hydraulic brake force booster for actuating the working piston, at least one wheel brake connected to the brake pressure generator and an electrically operable auxiliary pressure source adapted to be connected to the brake force booster, a control and regulating electronic unit for detecting the wheel rotating pattern and for controlling the wheel brake pressure by means of pressure modulating valves, and an electronic sensor means for detecting the relative movement between the push rod and the booster piston, the output signals of which sensor means are capable of influencing the operation of the auxiliary pressure source, wherein the auxiliary pressure source includes a quick-fill piston which is guided within a servo cylinder arranged on a servo drive.

Abstract: A method for improving the driving behavior of an automotive vehicle is provided. The vehicle has a plurality of wheels, each wheel having a brake. The vehicle includes a plurality of sensors for generating signals representing the vehicle velocity, the vehicle steering angle and the measured yaw rate of the vehicle. A desired yaw rate is determined based on the vehicle velocity and the vehicle steering angle. A yaw rate adjustment value is calculated based on the desired yaw rate and the measured yaw rate. A velocity of the side slip angle is determined based on the vehicle velocity and the measured yaw rate. A value representing a yawing moment adjustment is determined based on the vehicle velocity value of the side slip angle. The yawing moment adjustment value is applied to control the yaw rate of the vehicle.

Abstract: Yaw moment control apparatus is provided for improving the driving behavior of an automotive vehicle tending to oversteering or understeering. The vehicle's velocity, steering angle, measured yaw rate, and lateral acceleration are determined. A yaw controller generates a value representing a desired yaw rate adjustment based on the steering angle, the velocity and the measured yaw rate. An estimated coefficient of friction is calculated based on the vehicle velocity, the lateral acceleration, the measured yaw rate and the steering angle. The estimated coefficent of friction is used by the yaw controller to determined the desired yaw rate adjustment. The mechanism for calculating the estimated coefficient of friction is only enabled while the vehicle is traveling through a curve.

Abstract: A system for improving the driving stability of a vehicle during travel through a curve is provided. The system includes a sensor for measuring the actual yaw rate of the vehicle, and a facility for calculating a desired yaw rate. The difference between the desired yaw rate and the measured yaw rate is determined. A situation recognition facility determines whether the vehicle is travelling in a curve, and whether the vehicle is travelling in reverse. A logic initiates a corrective yawing moment if the difference exceeds a predetermined threshold value and the vehicle is not traveling in reverse.