Abstract: A load adjustment device with which the power of an internal combustion engine can be controlled has a driver (4) which is coupled with an accelerator pedal (1). The driver cooperates via a control element with a setting member (throttle 9) which determines the power of the internal combustion engine. The control element has a first control-element part (8a) and second control-element part (8b) which can be decoupled from each other in order to be able to control the setting member (9) independently of the driver (4) via an electric setting drive (14). Within the second control-element part (8b) there is present, in accordance with the invention, a step-up transmission (torque converter 30a) for movement on the setting drive side, the torque converter being developed as a spiral.

Abstract: The present invention proposes a fuel-air mixture-forming device for internal combustion engines, having a rotationally symmetric nozzle body (2) which, together with a rotationally symmetric throttle body (8) displaceable in it, forms a convergent-divergent nozzle which discharges into a radial diffusor (6). In the vicinity of the narrowest cross section (5) of the nozzle there is provided a fuel slot (11) extending around it and discharging into it, at least one fuel feed line (9, 10) discharging into the fuel slot. The radial diffusor is formed by a region of the nozzle body which is curved outward in the direction of flow of the mixture and by a wall (15) of a structural member (17) which forms a structural unit (18) with an intake manifold (7) of the internal combustion engine, the wall (15) lying opposite the nozzle body and being rotationally symmetric to the longitudinal axis (1) of the throttle member and having a bulge (16) pointing toward the throttle member.

Abstract: A setting device is provided for a feed device, in particular the throttle valve of an internal combustion engine with idling speed control, in which the throttle valve is located in the intake manifold. The throttle valve is connected to a displacement rod and pretensioned by a return spring. A first, adjustable stop and a second, fixed stop are provided for an actuating lever of the throttle valve. The second, fixed stop limits the adjustment range of the first stop for a minimal opening of the throttle valve. An idle stop, which is preferably developed as single-piece lever, acts with the actuating lever. By cooperation of the idle stop lever with the two stops, there is assured, on the one hand, a control of the idle position of the throttle valve, in which case a minimal opening position is established, while, on the other hand, an idle position of the throttle valve with a somewhat larger opening than the minimal opening is assured in the event that the idle speed control fails or becomes defective.

Abstract: In an indicating instrument, a channel (4) of light-opaque material is fastened on a cap (2) held on a pointer shaft (1), the channel being open towards the observer, a pointer (5) of light-conducting material being inserted into it. The pointer (5) has a detent projection (6) by which it is secured to the cap (2).

Abstract: In a system for the electrical transmission of an angular position, in particular from a measurement instrument to an indicating instrument, in which a transmitter and a receiver each have a rotor and a stator which has multiple pairs of poles, an alternating voltage is fed to a winding of the rotor of the transmitter, and voltages induced in the windings of the stator of the transmitter are transmitted to the windings of the stator of the receiver. The winding of the rotor of the receiver is connected to a phase-sensitive rectifier to which the alternating voltage which is also transmitted can furthermore be fed. The output of the phase-sensitive rectifier is connected to a controller for a motor which is provided for driving the rotor of the receiver and the indicating instrument.

Abstract: The controller unit (3) which is used in combination, for instance, with an electric gas pedal system which consists of a gas pedal (1), a desired-value transmitter (2), an electronic controller unit (3), a controlling element (4), a position reporter (5), a transmission device (6) and a displacement device (7) developed, for instance, as throttle valve, has associated with it, in addition to an additional control unit (8) for increasing the idle speed of rotation, an adjustment device (12) which detects the, in each case, highest end position set instantaneously by the additional control unit and feeds it as effective first desired-value end position into the controller unit.

Abstract: A mechanical unlocking arrangement is integrated in an adjusting element for the unlocking and locking of a door- or lid-lock which in addition to a main adjusting drive includes a further power-actuated security-adjusting drive for blocking the adjusting member of the main adjusting drive in the position keeping the lock locked by means of a locking member; the mechanical unlocking arrangement thereby enables a release of the blocked adjusting member without power-assist.

Abstract: A throttle-valve setting device has, for idle adjustment, a motor setting lever (10) which displaces a throttle valve (3) and is connected via a path-dependent controlling movement-reversal device (15) to a setting member (13) of a setting motor (12). Thereby, upon activation of the setting motor (12), the setting lever (10) first swings slightly in one direction and then in the other direction to the full-load position of the throttle valve (3).

Abstract: A method for measuring a vehicle's own speed by the Doppler radar principle, in accordance with which microwaves of a transmission frequency are sent out by the vehicle, a part thereof being reflected back and mixed with the microwave signal at transmission frequency. In this way Doppler signals are produced which, after pulse formation, are evaluated as Doppler pulse signals by a frequency measurement in the time range plus direction-of-travel evaluation, so as to form digital Doppler signal values. For the determination of a mean Doppler period in each case, a median M(n-3) is continuously determined from a predetermined number of the last generated digital Doppler signal values of the sequence M(n-1), M(n-2), M(n-3), M(n-4), M(n-5).

Abstract: In a circuit for controlling a pulsating current through an inductor, particularly the coil of an electromagnetic valve, the inductor is connected in series with a semiconductor switch and in parallel with a free-running diode. Furthermore a desired-value voltage is fed to a controller the output of which is connected via a pulse-width modulator to a control input of the semiconductor switch. A current flows through the inductor and the semiconductor switch, during a state of conduction of the semiconductor switch, to be measured. The current measurement is gated, in response to pulse-width modulation at the controller, and is then integrated for improved measurement of the current.

Abstract: A device is described for determining and/or controlling the operating data of automotive vehicles, particularly for controlling the velocity of vehicles with internal combustion engines and electric transmission of the position of the gas pedal to an electric setting element which is connected to the throttle valve or the displacement device of the injection pump, the device having a measuring device for determining shunt resistances to the electric position transmitter which is connected to the gas pedal and the throttle valve. Such shunt resistances (leak resistances) detrimentally affect the desired precise relationship of the position of the gas pedal to the position of the throttle valve.

Abstract: A device for setting a resettable mechanical counter, has a stepping motor (1) which is developed as two-phase stepping motor having a rotor (32) consisting of a permanent magnet (33) with diametrically opposite permanent magnet poles and a coil arrangement (10, 11) with coils which are arranged at an angular distance apart of, in particular, 90.degree.. The stepping motor is connected to the counter via a gearing (2). In order to effect the resetting of the counter with the same stepping motor and with a compact construction of the device, the stepping motor has a coil body (14) to receive the coils, the coil body being divided into two parts (15, 16). Bearings (36, 37) of the shaft of the rotor being so formed in the coil body that the shaft extends out of the coil body (14) on at least the front outer end (12). The coil body has, for this purpose, furthermore, fastening elements on one outer end of one of the two parts for the attachment of an intermediate body which encloses the gearing.

Abstract: In an eddy-current measuring device, a permanent magnet (2) which is arranged fixed for rotation on a drive shaft (1) is magnetized axially. An eddy-current element (4) has the shaped of a disk and is located with slight axial spacing from the permanent magnet (2) on a pointer shaft (3). On the top of the eddy-current element (4) and below the permanent magnet (2), a congruent flux return element (8,9) is provided in each case.

Abstract: In an apparatus for measuring the level of filling of a fuel tank of a motor vehicle in which a transmitter gives off a transmitter signal which is dependent on the level of filling of an electronic signal-processing unit, there is provided in an electronic signal-processing unit, in addition to a program for the evaluation of the transmitter signal and the control of an indicating device, also a further program. Upon an initial placing in operation of the electronic signal-processing unit connected with the transmitter, the further program forms, at a known level of filling, preferably with empty tank, a correction value from the relationship between the transmitter signal and a stored desired value signal, and stores the correction value in a nonvolatile memory.

Abstract: A load-adjustment device for the internal combustion engine of an automotive vehicle has a control lever (1) which, for instance, displaces a throttle valve and is held by a coupling spring (9) against an intermediate lever (5) which can be swung directly by the accelerator pedal (3). A damping device (11) is so developed that, upon a sudden movement of the intermediate lever (5) in the direction of full load, the control lever (1) follows this movement only with a time lag action so that the automotive vehicle is not accelerated with excessive jerk.

Abstract: In a load-shifting device, a switch arm (7) is mounted on a driven shaft (3) and is turnable relative to the driven shaft (3) and urged in the direction of a switch contact (9) by a spring (8) which is wound around the driven shaft (3). The spring (8) is developed as an electric conductor. On one leg (13) it has a connecting piece (20) while its other leg (11) directly contacts the switch contact (9).

Abstract: In a safety device for electronic velocity control or regulating systems for motor vehicles with idling regulation in which a desired value can be fed to a setting device for the power of the engine of a motor vehicle and in which the setting device comprises a setting controller, an output stage and a setting member, there is provided a switch device which prevents the regulating of the output stage in a direction towards an opening of the throttle valve as a function of an output signal of a comparator. An actual-value signal corresponding to the position of the throttle valve and a limit value can be fed to the comparator, the limit value, at least upon a disconnection of the control or regulation, assuming a value necessary for idling control.

Abstract: In a fuel/air mixture preparation device for internal combustion engines, there is a nozzle body (2) of rotational symmetry having a throttle member (7) of rotational symmetry which is displaceable within the body, the body forming a convergent/divergent nozzle. With the throttle member (7), which is displaceable in the nozzle body, the main air-mass throughput through the nozzle is determined. At least one fuel feed line (8 and 9) enters into the nozzle body. The fuel feed line has a circumferential fuel slot (10) which is developed in the wall of the nozzle body as well as a circumferential fuel/air slot (12) which joins it and is open towards the inside in the nozzle body. At a transition place between the fuel slot and the fuel/air slot there debouches an air feed (13) which is approximately under ambient air pressure. From a gap opening (11) of the fuel/air slot, the fuel mixed with air is injected approximately transversely to the direction of the main air mass flow, into the inside of the nozzle body.

Abstract: A load-shifting device having a regulating element (11) which can act on a setting member (16) which determines the power of an internal combustion engine, which regulating element is connected to a driver (4) coupled with an accelerator pedal (1). In addition, the regulating element can be moved by means of an electric setting drive (9), having a desired-value detection element (7) associated with the driver (4), and an actual-value detection element (12) cooperating with the driver and acting on the electric setting drive (9). The electric setting drive (9) is adjustable as a function of the detected values by an electronic control device (22). Between the driver (4) and the regulating element (11), a space-monitoring device (15) is provided which, upon a deviation of driver (4) and regulating element (11) from a predetermined spacing established by the control device (22), feeds a signal for the purpose of plausibility testing.

Abstract: A combination instrument for automotive vehicles, in which different indicating instruments, indicating fields, control and warning lights, and, possibly, operating parts as well as electrical and electronic equipment parts, are arranged in common housing. The combination instrument comprises a computer unit with microcomputers (36) and/or use-specific integrated circuits which are arranged, for protection against electromagnetic disturbances, within a housing (31) which is impervious to high frequencies. Furthermore, disturbance-endangered incomiing and outgoing lines (41, 43, 46) are protected, upon entrance or exit, by suitable filter measures. These include leadthroughs with leadthrough capacitors (45) and the use of ferrite cores (47, 48) through which connecting lines are extended.