Abstract: A device for the contactless inductive transmission of electric energy to a movable consumer has a stationary primary circuit designed as an arrangement of elongated parallel leads connected to a source of high frequency alternating voltage or current and a transmission head arranged on the movable consumer. The transmission head consists of a ferrite core and of a secondary winding that surrounds the ferrite core and is magnetically coupled to the primary circuit. The primary circuit lead arrangement has an outer lead designed as an almost closed housing (7) and a middle lead (6) arranged approximately at the center of the housing. The current (11) that flows in the outer lead has the same intensity but an opposite flow direction to the current in the middle lead. The middle lead (6) is surrounded by a U-shaped ferrite core (2) that carries the secondary winding (W.sub.2).

Abstract: An air conditioner for vehicles has a housing and has an evaporator and a heat exchanger which, viewed in the air flow direction, are successively arranged in the housing at a distance from one another and enclose a housing section between one another whose bottom is approximately V-shaped. A warm air flap is swivellably arranged in the housing section for controlling the air supply to the heat exchanger.

Abstract: The invention concerns a bumper for a motor vehicle which is constructed mainly of molded plastic parts and optically appears to be part of the vehicle body. The bumper consists mainly of a support part (10) extending across the vehicle, three absorbing elements (12, 14, 14') that can be inserted into the support part, and an elastic exterior shell (16). On the lateral end sections, the support part (10) has lateral shells (22, 22') which extend between the lateral absorbing elements (14, 14') and the exterior shell (16). In a collision, the lateral shells (22, 22') yield backwards under the deformation of the absorbing elements (14, 14'), so that components attached to the lateral shells are protected from damage.

Abstract: A satellite navigation method for a mobile station which is installed, in particular, in a traffic route-guided vehicle. Several reference marks are installed along the traffic route at predetermined distances from one another, with the geographic positions of the reference marks being known or supplied to a mobile station passing a reference mark. The reference marks are detected by a reading device which is disposed in the mobile station. At the location of a reference mark and at the moment of its detection, the actual ranges and the pseudoranges from all satellites that are relevant for navigation are determined simultaneously and are compared. The measuring error change of the satellite navigation or the adjustment of the correction value maybe carried out with the aid of a velocity indicator and a route map mounted on the mobile station. From these, correction values are derived which are used for a pseudorange correction outside of the range of the reference marks.

Abstract: A battery monitoring unit is provided with a semiconductor power switch, which is looped into the battery lead and can serve for interrupting the battery current in a controlled manner. The battery monitoring unit comprises a sense FET circuit arrangement, which determines the battery current bidirectionally and the power FET part of which forms the semiconductor power switch, which is looped into the battery lead. Aside from the controllable interruption of battery current, a bidirectional determination of battery current and, with that, a continuous monitoring of the charge state of the battery is possible with this circuit arrangement, and can be used for monitoring vehicle batteries.

Abstract: An ignition system supplies high-voltage to spark plugs via field emitters. An ignition control device produces the ignition cycle for the ignition system and controls the ignition process of the ignition system. The field emitters couple the ignition control device to the spark plugs. The field emitters switch and regulate the high-voltage for the spark plugs.

Abstract: An automated clutch between the engine and the variable-speed transmission in the power train of a motor vehicle is operated by a control unit which receives signals from several circuits and/or sensors via one or more conductors. The control unit shifts from a normal operating mode to an emergency mode when one or more sensors and/or circuits and/or conductors are defective. When in emergency mode, the control unit disengages the clutch when the driver starts the engine while the vehicle brake or the parking brake is applied. This ensures that the engine can drive the vehicle as soon as the transmission is shifted into a forward gear or into reverse gear and the application of the brake or brakes is terminated because the control unit is then again free to engage the clutch. Furthermore, such mode of operation enables the driver to shift the transmission into or from a selected gear in response to the application of a relatively small force to the gear shifting lever.

Abstract: A catalyst and a method for producing the catalyst, for catalytic reduction of NO.sub.x and oxidation of hydrocarbons, the catalyst comprises a zinc, copper and aluminum spinel to which, at least one element selected from palladium, platinum, rhodium, ruthenium, osmium, iridium, rhenium and/or rare earth metals, such as lanthanum and cerium, vanadium, titanium, niobium, molybdenum, tungsten and/or salts thereof and/or oxides thereof has been added.

Abstract: In a belt roller for a safety belt system, a rod assembly has a torsion rod as well as at least one torsion sleeve which surrounds it coaxially. A stopping mechanism is provided with at least two axially offset stopping element sections, which can be adjusted either individually or jointly to the at least one torsion sleeve and to the torsion rod through the use of a control mechanism depending on the energy absorption capacity to be applied.

Abstract: The invention relates to a seat belt for vehicle seats with a webbing secured endwise at anchoring points in the vehicle, said webbing assuming a storage position when the seat is unoccupied, and with a tongue displaceable on the webbing within a webbing segment, said tongue being secured in a belted-in position by inserting it in a belt buckle integral with the vehicle when the seat is occupied. To ensure a favorable gripping position for the tongue in the storage position of the seat belt and to avoid rattling noises caused by the tongue against parts of the body, a pocket for inserting the tongue is disposed on the webbing in an area that is readily accessible to a seat occupant when the webbing is in the stored position.

Abstract: A motor vehicle wherein the power train comprises an automated clutch between the engine and a manually shiftable transmission. The control circuit for the clutch is designed in such a way that the clutch is disengaged in response to actuation of the gear shifting lever simultaneously with one or more additional undertakings such as actuation of the gas pedal and of one or more brakes, a reduction of the speed of the vehicle below a preselected value, and/or many others.

Abstract: The invention relates to a hydraulic power steering system for motor vehicles, in the case of which the manual steering wheel is normally connected only by way of a control system with respect to the drive with a servomotor operating the steered vehicle wheels. In the event of a malfunctioning of the control system, a hydraulic forced coupling is automatically established between the servomotor and a hydraulic delivery unit which is constantly forcibly coupled with the steering handle, in order to form a "hydraulic linkage".

Abstract: A spark plug for forming a spark that jumps between two electrodes has an insulating body surrounded by a housing with a ground electrode. The insulating body has a center electrode therein, which projects beyond the ground electrode in the axial direction.

Abstract: A line-leading arrangement for a motor vehicle has a covering pivotally connected on the vehicle body side, particularly a rear lid, for a motor vehicle opening, for the connection of subassemblies arranged in the covering. At least one line is provided which, for this purpose, bridges a distance between a vehicle body part and the covering. The covering is movable between a first and a second end position. A pull-back device is provided which, for adapting the at least one line to the distance which changes when the covering is moved between its two end positions, exercises a force onto the at least one line. The at least one line, with the aid of the exercised force, is guided along an ideal course and is displaced on the vehicle body side and/or on the covering side.

Abstract: A pipe clamp with a headed bolt for securing a pipe connection, in particular pipes of the exhaust system of a motor vehicle which are to be connected to one another, in the case of which the end of a first pipe is pushed into an axially slit end of a second pipe and, when the headed bolt is tightened, the pipe clamp, fitted on the slit pipe end, connects the two pipe ends to one another in a frictionally locking manner, is to be secured against a reduction in clamping force. For this purpose, the pipe clamp is formed of a material which has a higher coefficient of expansion than does the material of the pipes which are to be connected. The head of the headed bolt is elongated, in order to avoid impermissibly high local stressing during tightening of the pipe clamp. Due to the elongate form of the head of a headed bolt, the forces on the pipe clamp which support the tightening torque are reduced by a lengthening of the lever arm with respect to the axis of the headed bolt.

Abstract: A movable roof construction for an open or convertible passenger car with a two-part foldable hardtop. To prevent the occurrence of wind noises in the area of the bordering of the two hardtop parts, a locking mechanism is provided between the two parallelogram control arms on each side of the parallelogram linkage. The locking mechanism is restrictedly coupled by transmission devices to the locking device of the forward roof part on the windshield cross member. Thereby, for a release of the parallelogram control arms, the locking mechanism can be unlocked together with an unlocking of the locking device.