Abstract: The invention relates to a method for controlling an internal combustion engine of a motor vehicle having an auxiliary force brake device wherein the auxiliary force is generated by coupling the brake actuation to the manifold pressure of the engine. In the method, the engine is operated with increased manifold pressure during the warm-up phase after a cold start. In the method, an actuation of the brake effects limiting the manifold pressure to a maximum value by intervening in the engine control. This maximum value is less than the value which would otherwise adjust under the same conditions without brake actuation.

Abstract: The invention is directed to a method and an arrangement for controlling an internal combustion engine wherein the operational reliability of the control is ensured by comparing the actual torque of the engine to a maximum permissible torque. This torque comparison is switched off and another monitoring function is activated when a fault in the area of charge detection is suspected.

Abstract: The invention is directed to a method and an arrangement for controlling an operating variable of a motor vehicle. A friction-burdened actuator assembly, which influences the operating variable, is actuated via a drive signal. This drive signal is formed on the basis of a desired value of the operating variable. The drive signal is additionally changed in response to a desired change of the operating variable to transfer the actuator assembly out of a steady state condition preferably so as to effect an actual change of the operating variable. In this way, the static friction of the actuator assembly, which is in opposition to the change of the operating variable, is overcome. Furthermore, the drive signal can be additionally changed in the sense of a reduction of the change of the operating variable when the operating variable approaches the desired value thereof.

Abstract: The invention is directed to a method for controlling an internal combustion engine wherein an error state is detected and/or at least one error reaction is initiated when the injection, which is determined in dependence upon the detected load, and the injection time, which is corrected in dependence upon at least an additional operating variable, deviate from each other.

Abstract: The invention is directed to a method and an arrangement for controlling the idle of a drive unit. In this method, the influence of the control on the drive power of the drive unit is limited when the vehicle is parked or when it begins to roll away. The limiting is carried out at least in the sense of reducing an increase in power.

Abstract: The invention is directed to a method of controlling a drive unit of a motor vehicle wherein the drive unit is controlled in dependence upon at least one operating variable. The operating variable is detected with at least first and second measuring devices as first and second quantities, respectively, thereby providing a redundant detection of the operating variable. The two measuring devices are mounted so that they move in synchronism with each other within a predetermined tolerance. The second quantity is checked for a fault utilizing a comparison in the context of the tolerance of the synchronism of movement. A fault without a movement out of the tolerance is detected when the value of the second quantity does not change in correspondence to the value of the first quantity within at least a predetermined value range of the operating variable. The invention is also directed to an arrangement of controlling the drive unit in dependence upon the operating variable.

Abstract: The invention is directed to a method and an arrangement for controlling a positioning element of an internal combustion engine. In the method and arrangement, a positioning element is used which exhibits a so-called torque-reversal point. If the positioning device is in the region of the torque-reversal point, then the drive signal for the positioning device is changed in the sense of a current change which is as abrupt as possible.

Abstract: The invention is directed to a method and an arrangement for controlling the power of an internal combustion engine. In the method and arrangement, the power-adjusting element for adjusting the supply of air to the engine is adjusted in the context of a load control loop. When the load detection becomes disabled, measures are taken for ensuring operational reliability and an emergency method for adjusting the throttle flap is described in the fault situation.

Abstract: The invention is directed to a method and an arrangement for controlling the drive unit of a motor vehicle. The maximum permissible torque or the maximum permissible power is determined and fault reactions are initiated when the limit value is exceeded by a computed actual torque value or an actual power value.

Abstract: The invention is directed to a method and an arrangement for controlling the drive power of a motor vehicle equipped with a chargeable spark-ignition engine. In this method and arrangement, the engine power is adjusted via the air input and the charging pressure independently of each other as a function of the accelerator pedal deflection. In one range of the accelerator pedal deflection, the engine power is adjusted by adjusting an engine power actuator in dependence upon the accelerator pedal deflection and/or, in another range, the charging pressure is adjusted in dependence upon the accelerator pedal deflection.

Abstract: A method controls an internal combustion engine of a motor vehicle. The engine is supplied with air and has an ignition angle and the engine is equipped with a control unit for adjusting at least the air supplied to the engine and the ignition angle. In the method, a driver command for the control unit is detected which can be realized by effecting a change of the air supplied to the engine. The air supplied to the engine and the ignition angle are adjusted during an operating state of the engine in dependence upon the driver command. In this way, the change of the air supplied to the engine is reduced which is required to fulfill the driver command.

Abstract: The invention is directed to a method and an arrangement for controlling the power of an internal combustion engine. A power adjusting unit or the air supplied to the engine is adjusted in dependence upon driver command. The mixture adaptation is improved for rapid changes of the driver command when the engine is cold and/or when the ambient air is cold by limiting the rate of change of the supplied air or of the position of the power adjusting unit.

Abstract: The invention is directed to a method and an arrangement for controlling an adjusting device of a drive unit in a motor vehicle. When the ignition is switched on, the value then present for the driver command is interpreted as an idle command independently of its absolute magnitude.

Abstract: The invention is directed to a method for controlling the operating sequences in a motor vehicle equipped with an internal combustion engine to which amounts of fuel and air are supplied for influencing the engine torque. Furthermore, the motor vehicle includes an automatic transmission having a ratio which can be changed. The overrun operation of the motor vehicle is detected in dependence upon the position of an accelerator pedal actuated by the driver and in dependence upon a comparison of the rpm of the engine and/or the input and/or the output rpm of the transmission to at least one threshold value. The fuel quantity is at least reduced compared to normal operation when an overrun is detected.

Abstract: The invention is directed to a method and an arrangement for controlling the power of a drive unit of a motor vehicle wherein a power-output element is set on the basis of an operator-controlled element actuated by the driver and the power-output element can assume positions different with respect to the position of the operator-controlled element depending upon operating range. A maximum permissible position of the power-output element is determined on the basis of the position of the operator-controlled element as well as on the basis of data with respect to the operating range for function monitoring the setting of the power-output element and a fault is then detected when the actual position of the power-output element exceeds the maximum permissible value.

Abstract: An arrangement controls the torque to be supplied by a drive unit of a motor vehicle especially a motor vehicle at standstill or a rolling motor vehicle. Apparatus are provided which compute the adjustment of the power parameters of the drive unit which is necessary for making this torque available. A correction is provided at least in dependence upon the torque requirement of a transmission unit of the motor vehicle in idle or near-idle range outside of driving operation. In addition, corrective devices with respect to engine torque loss as well as torque requirements of ancillary equipment of the motor vehicle are provided. These characteristic fields are adaptatively determined in a further embodiment and can be adapted to deterioration.

Abstract: The invention proceeds from an automatic transmission wherein upshift and downshift operations are triggered in dependence upon first and second signals for adjusting transmission ratios. The first signal is representative of the transmission output rpm and/or the engine rpm and/or the transmission input rpm and the second signal is representative of the driver command. These upshift and downshift operations take place with a hysteresis which is typical for the particular upshift and downshift operation. According to the invention, the hysteresis has a time-dependent component. Thus, a time-dependent hysteresis is defined in addition to the hysteresis mentioned above which is a basic hysteresis between upshifting and downshifting. The time-independent basic hysteresis can then be selected to be very small for adjusting the gear optimal for the particular operating condition.

Abstract: The invention is directed to a method and an arrangement for controlling the drive power of a motor vehicle wherein a controllable transmission unit is acted upon in such a manner that the load of the drive unit is at least reduced for the operating state of the motor vehicle wherein the vehicle is at standstill and/or is rolling slowly. When leaving this operating state, the control of the drive power is delayed until the complete force connection is reestablished.

Abstract: The invention is directed to a method and an arrangement for controlling an internal combustion engine wherein a signal representing engine load is compared to a maximum value pregiven for at least one driver command range. Fault and emergency reactions are initiated when the measured signal value reaches or exceeds the maximum value.

Abstract: An apparatus for adjusting the output torque, or the output power, of a continuously variable transmission in vehicles propelled by combustion engines to a predetermined value, has a calculating unit (15) for setting a target value for the output torque or power M ab Soll as a function of an accelerator position (14;2) and vehicle speed (nab). An engine torque target value is calculated (units 18, 19, 20) as a function of the so value and an actual or instantaneous transmission ratio value or speed (u n ist). Target values of a transmission ratio are calculated in a unit (16), including a look-up table or an algorithm for storing or calculating transmission ratio values as a function of transmission output speed and of the accelerator pedal position (14;2) or the transmission output torque target value in accordance with a predeterminable engine operating strategy (e.g. optimum fuel efficiency, or performance, or driving comfort.