Abstract: An arrangement for controlling the output torque (M.sub.ab) of an automatic transmission (10) during the sequence of a shift operation in a motor-driven vehicle to a value pregiven by the driver is suggested with the transmission (10) having at least two transmission stages (11, 12) which can be alternately shifted into via clutches (16, 17). During upshifting, the clutch (17) assigned to the higher transmission stage is continuously closed in a time-controlled manner with the motor torque being increased correspondingly for holding the output torque (M.sub.ab) constant. The first clutch (16) is assigned to the lower transmission stage and is opened when this first clutch (16) no longer transmits torque. Thereafter, the second clutch (17) is brought to its synchronous rpm by reducing the motor torque (M.sub.m) and then driven further without slippage. The downshifting operation takes place in a changed sequence in a like manner.

Abstract: The ignition system for a four-cycle gasoline engine having at least one cylinder includes a spark plug for each cylinder and an ignition coil for each spark plug so that each spark plug has its own ignition coil with a primary and secondary side as well as a control device for controlling the timing of the firing of the spark plugs via the individual ignition coils according to a predetermined firing sequence connected to each of the ignition coils.

Abstract: The invention is directed to an arrangement for controlling an internal combustion engine wherein one or more position data values are determined with reference to the position of the adjusting device via a plausibility check with a signal value representing the load of the engine. If required, an emergency operation takes place in the context of an electronic engine power control with position data values which are unreliable and on the basis of a desired value, which is pregiven by the driver and which represents the load of the engine, and a corresponding actual value.

Abstract: The invention is directed to an control system for a motor vehicle and includes: a plurality of control elements coacting for carrying out control tasks with reference to engine power, drive power and braking operation, respectively, and a plurality of coordinating elements for coordinating the coaction of the first elements to effect a control of operating performance of the motor vehicle in correspondence to a request of the driver. The elements are arranged in the form of a plurality of hierarchial levels. At least one of the coordinating elements of one of the hierarchial levels is adapted for acting on the elements of an adjacent hierarchial level when translating the request of the driver into a corresponding operating performance of the motor vehicle thereby acting on a pregiven subordinate system of the driver-vehicle system while providing the performance required from the higher hierarchial level for this subordinate system.

Abstract: An arrangement for controlling the drive power of a motor vehicle has at least two control units for controlling at least two changing variables for influencing the drive power. The variables are independent of each other. The arrangement further includes at least one measuring device for detecting an operating variable of the drive unit and/or of the motor vehicle. This one measuring unit includes at least two redundant sensors with the output signal of one sensor being supplied to a first control unit and the output signal of another sensor being supplied to a second control unit. Both control units monitor the measuring device on the basis of the output signals with additional monitoring measures being carried out on the basis of the monitoring results of the two control units.

Abstract: The invention is directed to an arrangement for controlling the output power of the drive unit of a motor vehicle. The drive unit includes a drive motor for generating an output torque, a transmission unit and a power transmitting device including a torque converter interconnecting the drive motor and transmission unit for transmitting torque therebetween with the power transmitting device having an output torque, the transmission unit having a transmission ratio and the torque converter having an amplification. The arrangement includes a circuit for supplying a signal indicative of a driver command and a control apparatus. The control apparatus determines a desired value for the output torque of the drive motor occurring at the output end of the power transmitting device and determines a desired value for a drive motor torque from the desired value of the output torque and from variables representing the transmission ratio of the transmission unit and the amplification of the torque converter.

Abstract: The invention is directed to a control system for a drive unit wherein a pregiven torque occurring at the output of the drive unit is pregiven and is adjusted at the output of the drive unit on the basis of engine speed, engine temperature, the status of additional consumers and/or a measure for the air throughput independent of engine speed, temperature and/or air density.

Abstract: The electronic counter for counting a periodic clock signal generated at a preset clock frequency (f.sub.o) includes a clock circuit generating the periodic clock signal at the preset clock frequency (f.sub.o); an adjustable frequency divider (4) having an output (8), a first input (5) and a second input (7), the first input of the frequency divider (4) being connected to the clock circuit (6) so as to receive the periodic clock signal and the second input (7) of the frequency divider being connected to receive a cycle speed signal (n), the frequency divider (4) containing means to produce a pulsed output signal at a divider output frequency (c.sub.o); a tracking circuit (T) connected to the output (8) of the frequency divider (4) to receive the pulsed output signal at the divider output frequency (c.sub.