Abstract: A PC card is provided with internal electromagnetic shielding to isolate two or more different circuit component areas of the card, which facilitates mounting of the shielding. In one card which is an extended card having a standard forward portion (102) containing electronic components, and having an extended rearward portion containing an antenna (100) for radiating electromagnetic energy, the shielding includes a strip-shaped portion (22) of electrically conductive material that extends across the width of the circuit board and that has opposite ends that terminate near the intersection between the two card parts, with the shielding having pins (31) that project into holes (150) in the circuit board.

Abstract: A low cost miniature standard-sized coaxial connector has an increased impedance at its rear portion in a simple and rugged construction. A one-piece molded insulator (16) lies within a sheet metal shell (14) and supports a center contact (18) of the connector. The insulator has a rear portion (34) with a cylindrical sleeve-shaped part (50) closely received within the shell and with three ribs (60-64) extending radially inwardly and having free radially inner ends (68). The center contact has a barb (40) lying in an interference fit within the inner ends of the ribs. The insulator forms a pin lead-in (44) at the front end of the connector, and forms a coupling part (80) between the rearward portion and the lead-in part. The coupling part is in the form of a cylindrical sleeve along its lower half, and has an upwardly-extending slot (82) along its upper half.

Abstract: Process for temperature-dependent actuation of a supplemental pressure medium source in slippage-controlled motor vehicle braking systems. The invention pertains to a process for operating a slippage-controlled motor vehicle braking system with regulation of driving dynamics. In such systems it has thus far been proposed to turn on supplemental pressure medium sources to support the supply pump when regulation starts, in order to shorten the regulation time. Practical studies have shown that such supplemental sources are, first of all, not needed for each regulation process and, second, cause disruptive noise. The invention thus proposes to turn on the supplemental pressure medium source only in the presence of special situations, such as if the pressure medium is very viscous due to low temperatures. Advantageous refinements are concerned with determination of the temperature.

Abstract: A wiper blade assembly for a windshield wiper system of a motor vehicle is described in which a carrier yoke system which interconnects the wiper arm with the blade element is constructed of cascadingly interconnected yokes or bows. Pivot joints interconnecting the various yokes includes an opening formed in one or both of opposed yoke surfaces near the joint to expel solid foreign objects such as ice lodged there between.

Abstract: A miniature electrical switch that can be mounted on a circuit board, includes a dielectric housing (12) with a forwardly-opening cavity (26), a first contact (16) lying primarily within the cavity, and a second contact (14) lying outside the cavity and engaging the first contact except when the first contact is depressed. The second contact is of largely U-shape, with a middle (64) and lower section (52) in a fixed position and with an upper section (60) that can resiliently bend. The second contact is a thicker plate of sheet metal with a top section (28) that forms the top of the cavity front and which has a front edge (30) which engages a contacting part (66) at the front of the first contact upper section. The second contact is mounted to lie on the outside of the housing.

Abstract: A carbon brush for an electric machine, resiliently acting on a collector, is arranged within a guideway so as to be movable radially to the collector and is inflexibly connected with a bending leg. The carbon brush allows easy and cost-saving assembly in a motor and electric contacting. The bending leg serves the resilient advance of the carbon brush towards the collector, on the one hand, and the electric power supply, on the other hand.

Abstract: To monitor the correct function of a microprocessor, microcontroller or any other program-controlled circuit data processing results are checked in the working cycle for correlation with data which are produced independently of the circuit to be monitored and independently of the program run in a monitoring circuit. If deviations indicative of a malfunction occur, a disabling signal is generated. To this effect, data words or a data word sequence is produced in the program run of the circuit to be monitored and transmitted to the monitoring circuit at predetermined times. The content of the data words and the timely appearance of the data words is monitored by way of the monitoring circuit. (FIG.

Abstract: To improve the control behavior of an anti-lock control system or brake slip control system, more particularly, to improve the steerability of a vehicle and its drivability when braking during cornering is performed, criteria for cornering identification and for determining the direction of cornering are derived from the wheel slip of the individual wheels. When cornering is identified, the normal control mode which is intended for straight travel and is configured for an individual control of all wheels or an individual control of the front wheels in conjunction with a select-low control of the rear wheels is changed to a cornering control mode. In the cornering control mode, the average pressure level of the curve-inward front wheel is decreased by a predetermined value and the average pressure level of the curve-outward front wheel is increased by a predetermined value.

Abstract: A receptacle connector (12) is provided for mounting on a circuit board (14) and for receiving a plug (30) to deflect the plug contacts (32) against contact pads (20) on the board, wherein a receptacle connector of simple design provides EMI (electromagnetic interference) shielding, means for fixing itself to the board in a simple and accurate manner, and means for secure plug latching. The receptacle connector includes a die cast metal housing and a plastic molded cam wall (26) fixed to the housing. The housing has three solder pad projections (100, 102, 104) at its bottom which are soldered to ground traces (110, 112, 114) on the circuit board to hold the housing in place and with its horizontal plane accurately parallel to the plane of the circuit board. The metal of the die cast housing provides EMI shielding and provides metal strikes (54) against which plug latches (50) are latched.

Abstract: A hydraulic automotive vehicle brake system with brake slip control and automatic brake management for traction control and/or driving dynamics control includes a braking pressure generator which is hydraulically connectable to at least one wheel brake and a pressure fluid accumulator by way of pressure modulation valves, at least one pump which is connected with its suction side to a pressure fluid accumulator and with its pressure side to a pressure fluid conduit that extends from the braking pressure generator to the wheel brake, the pressure fluid conduit comprising the pressure modulation valves and a pressure sensor that is connected to the pressure fluid conduit in between the braking pressure generator and the pressure modulation valves. The pressure sensor is accommodated in a housing which houses the pressure modulation valves.

Abstract: A grounding clip (130, 132) is provided which mounts on a rear end cap (60) of a PC card, and which connects a rear connector shell (44) of the PC card to a top 5 sheet metal cover portion (90). The clip has a pair of top spring fingers (140, 142) that lie in recesses (150) in the top surface of the top flange (62) of the rear end cap, and has a bottom finger (144) lying against the lower surface of the top flange and against a tine (104) formed in the shell of the rear connector. The clip lies close to an extreme side (124,126) of the PC card, to remain engaged with the top cover portion despite bending of the cover rear portion that results in its middle (126) being raised above its opposite sides.

Abstract: An electronically controllable brake actuation system for automotive vehicles includes a master brake cylinder, a simulator interacting with the master brake cylinder, a pressure source drivable by an electric control unit and by which wheel brakes of the vehicle are pressurizable, the wheel brakes being connectable to the master brake cylinder by at least one hydraulic connection that is closable by a separating valve, a device for the identification of the driver's wish for deceleration, each one inlet and outlet valve connected upstream or, respectively, downstream of the wheel brakes, and wheel sensors sensing the rotational behavior of the vehicle wheels. To improve the meterability of braking pressure of a system of the above type, especially in the range of low pressure values, the pressure source is configured as at least one continuously adjustable piston-and-cylinder assembly having a pressure chamber to which the wheel brakes are connected by the intermediary of the inlet valves.

Abstract: A rotational speed sensor system which uses the sensor and a sensor electronic circuit to test the air slot between the speed sensor and an encoder to determine if the air slot falls within acceptable limits.

Abstract: A steering column switch has a spiral spring which produces a rotatable contact between terminals that are rigidly arranged on the housing of the steering column switch and terminals on the rotatable steering wheel. The receptacle for the spiral spring is attained by integrally forming an open receptacle onto the switch housing, with said receptacle being closed by a cover that can be turned relative to the housing. Consequently, the spiral spring is integrated into the switch housing such that a separate spring housing is eliminated. Advantageous additional developments of the invention pertain to an additional locking part that rotationally locks the cover relative to the switch housing while the switch is stored. The locking part also makes it possible to turn the cover only relative to the switch housing once the steering wheel is attached to the steering column.

Abstract: A method of monitoring a brake system which is equipped with anti-lock control (ABS) and a system for electronic control of brake force distribution (EBV). The system includes two brake circuits in a black/white brake circuit split-up, the EBV function or control is principally released only when the vehicle deceleration exceeds a predetermined limit value (GWN). To identify a front-axle brake circuit failure, acceleration criteria, i.e., criteria responsive to the acceleration behavior of the vehicle wheels, are predetermined and monitored. Further, slip range monitoring in conjunction with acceleration range monitoring is performed.

Abstract: The present invention is directed toward a navigation system and method for a high orbit spacecraft, which passively utilizes UHF signals carrying intersatellite ranging data transmitted by a constellation of satellites that travel in lower orbits around a celestial sphere. The navigation system enables the high orbit spacecraft to self locate its position relative to an earth centered coordinate frame and comprises a receiver for receiving the UHF signal, carrying the intersatellite ranging data and a Kalman or optimum filter coupled to the receiver for processing the ranging data received by the receiver and generating and updating spacecraft position data.

Abstract: To extend the control range of the pressure control in a brake system which is equipped with a brake power booster that is operable irrespective of the driver's wish, preferably electromagnetically, according to the present invention, the hydraulic pressure introduced into a master brake cylinder connected downstream of the brake power booster is determined and, following a comparison with a preset pressure value signal, is sent to a pressure controller having an output quantity which corresponds to a control current for the solenoid and is supplied to a limiter that determines the limit values of the desired control range, and the output quantity of the limiter is compared with the value of the current supplied to the solenoid. Subsequently, the comparison result is sent to a current controller which generates the voltage to be applied to the solenoid.

Abstract: An optoelectric connector (12, FIG. 2) is described, which has an outer end (96) constructed to efficiently couple to an optical fiber connector (14) and which has an inner end (47) with electrical contacts (46) for passing currents representing modulated light received or transmitted to an optical cable (20) attached to the optical connector. The optoelectric connector (12) includes a stub (80) or short length of optical fiber with an outer end (82) held at a coupling that couples to the optical fiber (24) of the cable in the same manner as a pair of long optical fibers are connected to minimize losses. The stub has an inner end (84) optically coupled to the optic face (42) of a photoelectric transducer (40) which is coupled to an electrical contact (46).

Abstract: The present invention relates to an electromagnetic valve which includes a retaining member (2) that is pressure-tightly connected to a valve sleeve (3), a magnetic armature (8) which is axially movable in the valve sleeve, a valve closure member (9) corresponding with a valve seat member (16) being mounted on the magnetic armature, and a magnetic core (12) fixed in the retaining member (2) to transmit the magnetic flux of an electric valve coil (10) from the magnetic armature (8) to the retaining member (2) and to a yoke ring (11) which abuts on the valve sleeve (3) and the retaining member (2). The valve seat member (16) is attached directly to the end surface of the magnetic core (12) which is remote from the magnetic armature (8).

Abstract: A multi-layer tube comprises a metal tube having an outer surface and a zinc layer bonded to the metal tube outer surface, wherein the zinc layer is selected from the group consisting of zinc plating, zinc nickel alloys, zinc cobalt alloys, zinc aluminum alloys, and mixtures thereof. A surface treatment layer is bonded to the zinc layer, wherein the surface treatment layer is selected from the group consisting of a zinc/aluminum/rare earth alloy, phosphate, chromate and mixtures thereof. A first polymeric layer is bonded to the surface treatment layer, wherein the first polymeric layer is selected from the group consisting of a thermoplastic elastomer, an ionomer, a nylon, a fluoropolymer, and mixtures thereof. A second polymeric layer is bonded to the first polymeric layer, wherein the second polymeric layer is selected from the group consisting of a nylon, a thermoplastic elastomer, a fluoropolymer, and mixtures thereof.