Abstract: A motor control system selectively energizes a motor winding to maximize the motors efficiency and output torque under conditions of varying rotor speed, winding temperature, and supply voltage. Motor output requirement values and sensor output is used to develop independent parameters in the translation and dilation domain from which optimal turn-on and turn-off or "conduction angles" are developed. The optimal conduction angles are processed by circuitry to generate actuation signals that selectively control the delivery of energy to the motor winding.

Abstract: The invention pertains to a valve unit, comprising a valve housing (8) with a flow control valve, an electromagnetic actuating element (1) that is structurally arranged in series with the flow control valve in the valve housing (8), and a piston (3) that forms the flow control valve and produces an unobstructed pressure medium connection between a pressure medium source (4) and a pressure medium sink (5) in its normal position. In its normal position, the actuating element (1) is supported on one end face of the piston (3) against the force of a compression spring (2). In the operating position, the actuating element separates from the piston (3) and assumes an intermediate position in which it controls the volume flow of the pressure medium between the pressure medium source (4) and the pressure medium sink (5). This results in a simple and reliable valve construction.

Abstract: An electrohydraulic unit for pressure control in automotive vehicle brake systems includes a housing, wherein channels and accommodating bores for inlet and outlet valves, pressure accumulator, pump, pump valves, pump drive and pressure fluid ports are incorporated, wherein accommodating bores for the inlet and outlet valves open vertically into a first housing plane, and accommodating bores for the pump and the suction channel of the pump are arranged in a second housing plane disposed in parallel to the first housing plane, and the suction channel is connected to an accommodating bore of the pressure accumulator which extends both in the area of the first and the second housing planes. Both the suction channel and the pressure channel are positioned on a joint axis in the second housing plane, and both the suction valve and the pressure valve are arranged in the second housing plane coaxially one behind the other in the area of the suction and pressure valves.

Abstract: An electrical connector element, especially a coaxial connector body (1), includes a forward connector part (2) and a rearward crimp barrel part (3), formed of a single piece of thin sheet metal, wherein the crimp barrel part is constructed to avoid resilient collapse during crimping. The sheet metal has been rolled into a cylinder with adjacent edges (7, 8), with each edge provided with a circumferentially-projecting tab (11, 12) that overlies the other edge. The two tabs prevent one edge from riding over the other to thereby prevent resilient collapse of the cylinder during crimping, but instead hold the edges adjacent to cause plastic deformation of the crimp barrel part during crimping.

Abstract: A brush support plate (1) is disclosed. The current supply to the brush (21) is effected by way of conductor paths (10, 11) which are almost completely embedded into the material of the support plate. Recesses (30, 31, 32, 33) permit welding or soldering the strands (20) of the brush (21) to the conductor paths (10, 11).

Abstract: The invention relates to a steering column switch which should, with a uniform construction, be easily adaptable to different switching tasks. The invention is operated, in an optional manner, by means of microswitches which can be inserted into a mounting cavity of a carrier unit (2), whereby the cavity is positioned in the area of the grip handle (1) of the steering column switch. Advantageous further developments describe additional possibilities for the activation, independently of the rotational movement of the grip handle (1), of additional microswitches (16, 22) by means of an activation knob (23) in the activating element (1), or by means of the longitudinal movement of the grip handle (1) of displaceable contact parts (15, 22).

Abstract: To determine the transverse acceleration of a vehicle, in particular as an input quantity for an electronic vehicle control system such as ABS, TCS, EBV, etc., the output signals of wheel sensors representative of the rotational behavior of the individual vehicle wheels are evaluated. The correction factors representing the differences of the tire tread circumferences of the individual wheels are determined. A short-time correction factor and a long-time correction factor KZ and LZ are produced in each case for the non-driven vehicle wheels. A difference between the long-time correction factor and the short-time correction factor of the respective wheel is determined and evaluated in a filtering and adapting circuit. The quotient KZ/LZ of the short-time correction factor and the long-time correction factor of the respective wheel is calculated, and the difference is produced between the quotients of the left and right non-driven ##EQU1## wheels. The transverse acceleration of the vehicle Q.sub.

Abstract: In a method of operating an anti-lock automotive vehicle brake system for driving stability control and/or traction slip control (DSC/TCS) which includes an actuating unit that is operable by a brake pedal, and the actuating travel of the brake pedal is sensed by a pedal position sensor, a pressure value is assigned to the output signal of the pedal position sensor (11) in a control operation, the pressure value corresponding to the hydraulic pressure which prevails in the brake circuit (I of II) that is pressurized in response to the driver's wish.

Abstract: A hydraulic control unit for a hydraulic vehicle control system, such as anti-lock brakes, includes a hydraulic accumulator including a housing that defines a cavity and a passageway that extends from the cavity and that is adapted for inner-connection with a host hydraulic circuit, preferably adjacent the high pressure outlet of the host system hydraulic pump. A closure member cooperates with the housing to substantially seal the cavity. A pre-loaded elastomeric member is disposed within the cavity and is compressible with increasing hydraulic fluid pressure to attenuate short duration pressure pulses therein.

Abstract: A switch used with steering column assemblies includes a switch mechanism provided at the end of a switch lever. To provide a low-priced and reliable connection between the switch, mechanism and connector contacts in the housing of the steering column switch, a flexible conductor foil is used. The foil is not laid within the hollow interior of the switch lever. The switch lever is rather formed of two parts between which the conductor foil is guided. In advantageous embodiments, the contacts of the conductor foil are directly used as stationary switch contacts, the switch lever is manufactured by utilizing internal gas pressure, and the switching foil contacts are reinforced with contact plates.

Abstract: A master cylinder for attachment with a pre-installed brake booster includes a housing having a bore to receive a piston and piston rod. An outermost end of the piston rod has a guide member in the shape of a funnel which centrally aligns a push rod in the brake booster with a blind bore in the piston rod during attachment with the booster. In addition, a sealing boot is provided on the master cylinder to protect the piston rod outer sealing surface from foreign material and foreign objects that would otherwise contact the piston rod surface during shipping, storage, and installation. The sealing boot is attached at one end to the housing and at an opposite end to the guide member.

Abstract: A casing for a drive unit has a casing base body which is sealed by means of a cover unit. The casing base body consists of plastic, while the cover is produced from metal. It is desirable to form the edge of the casing in such a manner that the cover is supported on the casing base body in a flat manner. Since, within molding technology, there are a few difficulties in forming a continuous edge, a number of elevations, which serve as a support surface for the cover, jut out onto the edge of the cover. By means of a finishing of the casting mold, it can be achieved, in a simple manner, that the sealing surfaces of the elevations come to lie in one plane. The sealing of the casing cover relative to the casing base body is carried out by way of a sealing unit which is supported on the edge of the casing and leaves the elevations free.

Abstract: A noise-damping or vibration-damping attachment feature for a windshield wiper system includes a damping element which is located in an opening of an attachment section of the windshield wiper system and itself supports, in a passage opening, a casing to hold an attachment screw or an attachment bolt, and to refine the aforesaid attachment feature in such a manner that it can be produced at low cost while dispensing with a manual mounting of the damping element. The attachment section and the bushing are manufactured as a single part from the same material, wherein the bushing connected by means of ridges at least temporarily to the attachment section, and the damping element is poured or injected into the space between bushing and attachment section.

Abstract: A coil support for accommodating at least one coil wire of an electromagnet, more particularly for use in electromagnetic valves, includes a hollow-cylinder-shaped support part having ends which are provided with stops defining the coil in its axial position. The support part has a step in its diameter which is limited on both sides by the coil wire with different winding layers and on which the coil wire is guided.

Abstract: A polymeric, multiple-layer tube suitable for use as a filler neck is disclosed. The tube is comprised of a generally cylindrical wall having an outer surface and an inner surface. The inner surface is approximately parallel to the outer surface and defines a generally cylindrical interior having a diameter D. The cylindrical interior, which provides a flow path for fuel, extends throughout the length of the tube. The tube is divided into one or more contiguous first and second longitudinal segments. In the first longitudinal segment, D is approximately constant along the length of the segment; in the second longitudinal segment, D varies with axial position. This variation defines a convolution, which allows the filler tube to be bent without crimping. The cylindrical wall of the multiple-layer tube further comprises an outer layer composed of a thermoplastic elastomer, and an inner layer composed of an extrudable melt-processible thermoplastic having an elongation of at least 150%.

Abstract: The invention relates to a method to produce an oxide coating that protects against corrosion and wear on the metal surface of a workpiece, more specifically, for the metal surface of a body for accepting a valve, wherein with the use of a cathode, the workpiece, as an anode, is subjected to constant or pulsating direct current in an electrolyte, with an auxiliary anode, which is resistant to the electrolyte, being attached to the workpiece before the workpiece is dipped into the electrolyte, which discharges the anodizing current at locations where no anodized coating is required or only a limited anodized coating is required.

Abstract: A coaxial connector is provided, of a type that has a front portion (12) where the inner conductor (14) forms a socket for receiving a pin (M) of predetermined diameter (A) (1 mm) and the outer conductor has a front end of predetermined outside diameter (B) (3.7 mm), which enables an increase in characteristic impedance at the front portion of the connector to more closely match the impedance of the middle portion (16) of the connector. A dielectric support (30) that positions the inner conductor within the over one, includes primarily air at the front portion, to increase the characteristic impedance of the front portion without changing its diameter. The insulative support preferably includes a middle portion (72) with ring-shaped locating portions (62, 64) that are closely received in the outer conductor, that closely surround the inner conductor, and that abut shoulders on the inner conductor to fix the position of the inner conductor in radial and axial directions.

Abstract: In order to realize a two-piston floating caliper disc brake with a wide caliper, the axially outer side of the caliper is supported by radially extending protrusions shaped on the outer brake shoe. While the two protrusions have the same depth, they differ in their width. Corresponding circular grooves within the caliper around recess openings on the opposite side of the brake cylinders, however, are identical. Therefore, a radial support of the brake caliper can be carried out by both protrusions while a tangential positioning of the caliper is limited to the wider one of the two protrusions.

Abstract: To ensure pressure compensation and the replenishment function of a master cylinder, the present invention discloses the provision of supply channels configured as slits (40). The slits (40) are adequate to ensure pressure compensation and the replenishment action when the brake system is bled. Due to their large cross-section, the slits permit a large fluid flow which is required, for example, to supply the pump in brake systems which independently initiate a braking operation.

Abstract: An electrical switch selectively controls an ignition circuit and accessory circuits of a motor vehicle. The electrical switch includes a segmented rotatable member with radially extending side walls having cam surfaces formed thereon for operably actuating electrically conductive leaf spring members to individually open and close electrical circuits in response to positioning the rotatable member in predefined angular positions. A segmented, asymmetrical rotary actuator and housing assembly permits placement of the switch in close proximity to other system components.