Abstract: The headlight, especially for a motor vehicle, includes at least two separately adjustable reflectors and a reflector height adjusting mechanism for adjusting the reflector heights separately or synchronously. The reflectors include a first reflector for high beam light and/or fog light and a second reflector associated with a low beam light module. The reflector height adjusting device includes separate adjusting devices for individually adjusting the respective heights for the at least two separately adjustable reflectors and a coupling member for the separate adjusting devices. When the separate adjusting devices are put in a coupled state by the coupling member the heights of the at least two reflectors are synchronously adjusted by operation of only one of the separate coupling devices. The method for adjusting light radiated from the headlight includes performing a pre-adjustment in which each of the reflectors is separately adjusted by the separate adjusting devices.

Abstract: A hybrid drive arrangement for a motor vehicle including an internal combustion engine (1), which is connected or can be connected in a wheel-driving manner, via a first torque transmission path (11, 13), to a driving wheel (15) of the motor vehicle. An electric machine (19), which is operable at least as a motor, is fed from an electrical energy source (7, 29) of the motor vehicle and is connected or can be connected in a wheel-driving manner, via a second torque transmission path (21, 23, 13), to the driving wheel (15).

Abstract: A headlight for vehicles has a reflector having at least two regions formed for different illumination functions, at least one light source associated with each of the regions of the reflector and having two light source elements, a lamp carrier fixed to the reflector, one of the light source elements being inserted in the reflector via the lamp carrier and held in the lamp carrier, the lamp carrier having a first portion fixed to the reflector and a second portion in which the one light source element is held, the second portion of the lamp carrier with the one light source element held in it being movable transverse to an optical axis of the reflector relative to the first portion of the lamp carrier for adjusting of the one light source element when the second portion is fixed to the reflector, the second portion of the lamp carrier being accessible from a backside of the reflector for moving the second portion relative to the first portion of the lamp carrier.

Abstract: A headlight for a vehicle has a housing, a gas discharge lamp arranged in the housing and having an opening, a closing part arranged to close the opening of the housing, a voltage source with which the gas discharge lamp is connectable, a plug connection provided for connecting the gas discharge lamp with the voltage source and including a stationary plug part arranged on the housing and a releasable plug part arranged outside of the housing. The closing part is releasable from outside of the housing for releasing the opening and has an extremity which in a position in which the closing part closes the opening, extends in the plug connection. The releasable plug part is elastically deformable at least in a region and, in an initial condition before its mounting, has a shape in which it is not electrically conductively connectable with the stationary plug part.

Abstract: A process for changing the speed of a vehicle with driving wheels and with a continuously adjustable speed/torque characteristic in the drive train, in particular a vehicle with electric motor drive, corresponding to a change in the position .alpha.(t) of an accelerator pedal carried out by the driver of the vehicle, in which every position .alpha.(t) of the accelerator pedal is associated with a determined drive output P.sub.v (.alpha.)=f.sub.1 (.alpha.).times.P.sub.max (where P.sub.max =maximum drive output of the vehicle) and/or driving torque M.sub.v (.alpha.)=f.sub.1 (.alpha.).times.M.sub.max (where M.sub.max =maximum driving torque of the vehicle) which is desired in the sense of a predetermined value and acts on the vehicle. To provide a process and a device for implementing the process permitting the driver to change the actual speed of the vehicle to a different desired value in the most uncomplicated and reliable manner, the predetermined value P.sub.v (t) and/or M.sub.

Abstract: A passenger automobile or truck contains a unit which is formed by an internal combustion engine and a generator and which powers electric motors coupled with driving wheels of the vehicle via an energy distributor in the form of power electronics. An accumulator which can likewise be coupled with the electric motors via the energy distributor is provided as an additional power source. An electronic control unit receives driving signals from an accelerator pedal, in particular a position signal and a speed signal. The position signal of the throttle is interpreted as a request for a determined permanent output to be supplied by the internal combustion engine.The internal combustion engine is revved up to a new operating point in an "optimal" manner (e.g. with favorable fuel consumption), for example when a higher output is requested, while the generator is entirely or partially uncoupled from the load. Energy for accelerating the vehicle is provided in the meantime by the accumulator.

Abstract: A motor vehicle including a unit (2) consisting of an internal combustion engine, a generator supplying current to electric motors (12, 16) coupled with driving wheels (14, 18) over an energy distributor/power electronics system (8) and a battery which is supplied with energy by the internal combustion engine/generator unit via the energy distributor (2). An electronic control system (20) controls the energy distributor (8) as a function of a driving signal according to boundary conditions, for example, according to the least possible specific fuel consumption. A temporary increase in the power required to drive the motors can be supplied by the battery (22). In the event that the increase in power lasts for longer periods, the internal combustion engine, which as far as possible operates in a state that ensures low fuel consumption, is accelerated in order to cover the demand for high power.

Abstract: In a drive arrangement of a motor vehicle in which the wheels of the motor vehicle are driven by separate electric motors and the electric motors are powered via a d.c. voltage intermediate circuit by a generator arrangement driven by an internal combustion engine, the speed of the internal combustion engine and individual wheels is sensed by speed sensing circuits which respond to pulse signals of commutator circuits of the generator arrangement and electric motors. The commutator circuits generate the pulse signals depending on position transmitters which are arranged at the generator arrangement and at the electric motors. In this way, the speeds can be sensed with great accuracy exclusively on the basis of already existing components of the drive arrangement. In particular, the speed sensing means cooperate with an antilock braking system (ABS) and a drive slip regulating system (ASR).

Abstract: Steering is actively assisted in a turning motor vehicle including a hybrid drive having both an internal combustion engine and a generator unit. The inner and outer wheels are each associated with an individual drive which is controlled in accordance with the steering angle of the steered wheels. Specifically, the torque differential is adjusted such that the percentage actual wheel differentials approach the percentage reference wheel speed differentials. A substantial reduction in the force which must be applied via the steering system to adjust the steering wheels, as compared to an absence of torque differential, is achieved because the outer wheel is driven at a higher output than the inner wheel when making a turn.

Abstract: A headlight for motor vehicles has a reflector, a lamp support, a gas discharge lamp arranged in the reflector on the lamp support and including a region extending in the reflector and a glass cylinder which at least partially absorbs light in UV-wavelength range and surrounds the region of the gas discharge lamp, and a light stop which at least partially screens a light emitted by the gas discharge lamp. The light stop is at least indirectly mounted on the reflector, the glass cylinder is held on the light stop at least in its end region facing a light direction, the glass cylinder adjoins the lamp support, and the lamp support and the gas cylinder are arranged so that an opening leading to an interior of the glass cylinder remains between the lamp support and the glass cylinder.

Abstract: The drive arrangement for a motor vehicle includes an internal combustion engine (1) with at least one controlling element (29), an electric generator arrangement (3) driven by the internal combustion engine (1), at least one electric motor (11) which is powered by the generator arrangement (3) and drives the motor vehicle, and an electronic control unit (19) which, depending on the setting of an accelerator pedal (23), controls at least an actuating drive (27) and the electrical output generated by the generator arrangement (3) and/or the electrical output received by the electric motor (11). The arrangement contains a device for detecting an actual value of the speed of the internal combustion engine (1) and component for detecting an actual value of the electrical output generated by the generator arrangement (3).

Abstract: A drive and braking arrangement for a motor vehicle has at least one electric motor which drives the motor vehicle in dependence on the setting of an accelerator pedal. A forward drive or reverse drive selector (15) adjusts the driving direction of rotation of the electric motor, and a sensor is provided for detecting the driving speed of the motor vehicle. In order to control the braking force of a friction brake arrangement acting on at least one wheel of the motor vehicle, an actuating drive is provided which is set to a braking position by an electronic control unit when the accelerator pedal remains in a driving position for longer than a predetermined period of time and at the same time the detected driving speed is zero and/or when the sensor associated with the control unit detects an actual movement of the motor vehicle in the direction opposite to the driving direction selected at the selector.

Abstract: An apparatus for determining a critical driving torque and information representing the coefficient of friction at the wheel grip limit for a vehicle having a plurality of driven wheels. It is suggested that torque control devices be assigned to at least two of the driven wheels so that the ratio of the driving torques of the two driven wheels can be varied, wherein torque sensing device generate a torque signal corresponding to the magnitude of at least the greater of the driving torques of the driven wheels. A wheel slip sensing device is associated with the driven wheels and detects an increase in the slip of the wheel with the greater driving torque beyond a predetermined limit. The information on the coefficient of friction is generated depending on the magnitude of the detected driving torque of the wheel whose slip exceeds the limit.

Abstract: A headlight for a vehicle has a housing having a light outlet opening, a transparent light disc covering the light outlet opening, at least one reflector arranged in the housing and provided with a reflecting inner surface so that the reflector being turnable relative to the housing at least in a vertical plane, and a water level for controlling an inclined position of the reflector and visible through a part of the light disc from outside of the headlight. The water level is arranged in the region of the reflecting inner surface of the reflector and visible through a region of the light disc which extends over the light outlet opening of the housing transverse to the direction of light exiting the headlight.

Abstract: A slip control loop (13) is proposed which compares the actual differential speed between input and output speed of a friction clutch (5) of a motor vehicle with a desired differential value and adjusts a positioning drive (7) of the clutch (5) according to the desired differential speed. To increase the accuracy of control, a desired position signal from a clutch characteristic curve memory (25) is additively superimposed in the sense of an influencing variable on the desired position signal s' calculated by a controller (19) of the slip control loop (13). The clutch characteristic curve memory (25) stores the desired position signal s" as a function of the clutch moment which can be transmitted in this position and is addressed according to the instantaneous engine moment determined, for example, via an engine characteristic map (27). During a load change of the engine (1), the clutch (5) is adjusted to the expected moment before a significant change in the actual differential speed occurs.

Abstract: A headlight for a power vehicle has a holder and a plurality of bearing points mounting the holder on a chassis part of a power vehicle. At least one of the bearing points has a holding element which is fixable on the holder or on the chassis part and a mounting element extending through the holding element and mounting the holder on the chassis part. The holder comes to abutment against the chassis part through the holding element. The holding element is fixable in different longitudinal positions for compensating tolerances of the chassis and/or the holder. The mounting element abuts against the holding element and extends through the latter with a great radial play.

Abstract: Polyester granulates, in particular slowly crystallizing adhesive copolyesters are crystallized in two fluidized beds (1, 2) arranged in series and are guided into an impact apparatus (3) for the subsequent comminution of the small agglomerates. The first fluidized bed (1) is an effervescent fluidized layer with mixing characteristic and the second fluidized bed (2) is a flow bed with a plug flow characteristic. The second fluidized bed (2) ensures an adequate treatment duration in order to crystallize the amorphous grains of granulate which remain after the first fluidized bed (1).

Abstract: Polyester granulates, in particular slowly crystallizing adhesive copolyesters are crystallized in two fluidized beds (1, 2) arranged in series and are guided into an impact apparatus (3) for the subsequent comminution of the small agglomerates. The first fluidized bed (1) is an effervescent fluidized layer with mixing characteristic and the second fluidized bed (2) is a flow bed with a plug flow characteristic. The second fluidized bed (2) ensures an adequate treatment duration in order to crystallize the amorphous grains of granulate which remain after the first fluidized bed (1).

Abstract: A headlight for a power vehicle has a housing connectable with a vehicle body, a holding frame accommodated in the housing adjustably relative to the latter and a reflector which is turnably connectable with the holding frame and turnable outwardly from a position in which it is arrested with the holding frame. The reflector has a rear side and is provided with light sources insertable into the rear side of the reflector. The housing has a rear upper side and is provided at the rear upper side with an opening. The reflector is turnable about a horizontal axis extending in its upper region so that the rear side of the reflector with the light sources is turnable toward the opening from the holding frame.

Abstract: Unsaturated esters of carboxylic acids are prepared by reacting olefines or cycloolefines with carboxylic acids and oxygen in the gaseous phase in the presence of a catalyst containing noble metal salts or noble metals of the VIII.sup.th group of the Periodic System and alcali metal salts and/or alcaline earth metal salts, as activators the content of noble metal being in the range of from 1.2 to 5% by weight and the proportion of the metal fraction of each individual activator to the noble metal content being in the range of from 0.5 to 1 to 3:1.