Robert Boschgmbh

Frank Bederna

Martin Streib

Winfried Langer

Torsten Bauer

Wolfgang Haag

Reinhard Pfeufer

Thomas Zeller

Bernd Lieberoth-Leden

Margit Muller

Rainer Norgauer

Werner Huber

Thomas Frank

Andreas Reppich

Jochen Schafer

Juergen Gerhardt

Alois Hils

Berthold Steinmann

Dieter Sorg

Frank Plagge

Ulrich Schopf

Ralf Dunke

Arndt Ehrlinger

A method and an arrangement for monitoring a computing element in a motor vehicle are suggested. The computing element generates, with the aid of the program modules, at least one output quantity for controlling at least one function in the motor vehicle in dependence upon at least one input quantity. At least one program module or at least a part thereof is selected for monitoring the correct function of the computing element (). This at least one selected module or the at least one selected part thereof or a copy is run through in the computing element () on the basis of test data and the result of the test data computation is compared to a pregiven result for fault detection.

Method and device for monitoring a computing element in a motor vehicle

A method and an arrangement for controlling a drive unit are suggested wherein a maximum permissible value of an output quantity is determined. This maximum permissible value is compared to the actual value and, when the permissible value is exceeded by the actual value, reaction measures are initiated. The maximum permissible value is filtered at least in one operating state in accordance with filter means including a filter and a dead zone member. Furthermore, the maximum permissible value is continuously reduced in dependence upon the approaching of at least one quantity to a limit value. This quantity represents an operating state.

Method and device for controlling a drive unit

The invention is directed to a method and an arrangement for detecting a changing quantity for a motor vehicle. The changing quantity is the position of an operator-controlled element. At least one stop value is determined for the operator-controlled element when released. Outside of the operation of the motor vehicle, this stop value is dependent upon the operation of a test apparatus connected to the control unit of the motor and/or when a defined state of the control unit and/or when there is a defined sequence of specific actuations of operator-controlled elements.

Method and arrangement for detecting a changing quantity for motor vehicles

A method and an arrangement for operating internal combustion engines is suggested which is operated in at least one operating state with a lean air/fuel mixture. The fuel mass, which is to be injected, or the injection time, which is to be outputted, is determined in dependence upon a desired value. For monitoring the operability, the actual torque of the engine is determined on the basis of the fuel mass, which is to be injected, or the injection time, which is to be outputted, or the outputted injection time and compared to a maximum permissible torque and a fault reaction is initiated when the actual torque exceeds the maximum permissible torque. Parallel to the above, a quantity, which represents the oxygen concentration in the exhaust gas, is compared to at least one pregiven limit value and a fault reaction is initiated when this quantity exceeds the limit value.

Method and device for operating an internal combustion engine

A method and an arrangement for operating and monitoring an internal combustion engine are suggested wherein, in at least one operating state, operation is undertaken with a lean air/fuel ratio. At least one quantity, which represents the degree of actuation of the accelerator pedal, and a quantity, which represents the engine rpm, are detected and, in at least one operating state, only an operation of the engine with an approximately stoichiometric or rich mixture is permitted and/or only an operation with limited air supply is permitted. The operation is monitored on the basis of at least one operating variable of the engine.

Method and device for operating and monitoring an internal combustion engine

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.

Method and arrangement for controlling an internal combustion engine

Method and arrangement for monitoring the detection of measured values

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.

Method and arrangement for controlling the drive unit of a vehicle

The invention is directed to a method and an arrangement for checking the operability of the measured value detection system for an electronic power control arrangement of a motor vehicle. In the invention, and to check operation, the measured variable is converted by an analog/digital converter of the computer and is compared to a signal level determined from a signal derived from this measured variable. A fault condition in the area of the measured value detection system is assumed when impermissible deviations are determined between the two signals.

Method and arrangement for checking the operability of the measured

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.

Method and arrangement for controlling the drive unit of a motor vehicle

Slip control deceleration signal filtering system

The invention is directed to an arrangement for detecting the position of an accelerator pedal and/or a power-determining element of an internal combustion engine of a motor vehicle. The arrangement has at least two measuring devices as well as monitoring means which check the function of these measuring devices on the basis of the measuring signals thereof. In addition, a further measuring device in the form of a switch element is provided which likewise generates a signal representative of the position of an accelerator pedal and/or power-determining element of an internal combustion engine of a motor vehicle. A microcomputer selects on the basis of all three measuring signals at least one of the measuring signals for controlling the drive power of the engine in a motor vehicle. The switching element is a Hall switch.

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Korntal-Muenchingen, Germany

Frank Bederna