Robert Boschgmbh

Robert Bosch Cmbh

Jurgen Pischke

Engelbert Tillhon

Herbert Arnold

Wolfgang Gscheidle

Wolfgang Nonnenmann

Helmut Zehaczek

Matthias Fahrnschon

The invention is directed to a method for operating control apparatus during delayed shutoff after switching off the ignition of an internal combustion engine. This method protects the battery as far as possible and for this method, three principles are applied individually or in any desired combination but preferably all together. The first principle provides that the delayed-shutoff functions are no longer carried out, as has been conventional, until a fixed pregiven time duration is reached; instead, the functions are either interrupted when values of special variables reach a fixed pregiven threshold or a threshold fixed in dependence upon operating variables in advance of switch-off of the engine is reached. The particular monitored physical variable and the threshold value corresponding thereto are each so selected that, when the actual value reaches the threshold value and accordingly, the delayed-shutoff function is interrupted or not even started, this occurs without essentially influencing the new start capacity of the engine. The second principle provides that delayed-shutoff functions, and especially those which require a high current flow, are not carried out simultaneously but instead sequentially. The third principle provides that the current-supplying capacity of the battery is monitored and as soon as it becomes apparent that this current-supplying capacity is just sufficient for a new start of the cooled-down engine, the delayed-shutoff functions are interrupted or not even begun.

Method and arrangement for a delayed shutoff of control apparatus of an

Method of igniting a gas-discharge lamp

Height regulating system for a vehicle with air suspension

Height adjustment in a vehicle fitted with air suspension

Height adjustment system for a vehicle with air suspension

A method and an apparatus for determining the individual manipulated variables of an internal combustion engine such as a gas turbine or the like derived on the basis of given and measured operating characteristics such as rpm and temperature, including a computer having associated programs for control and data detection or data output and the various program courses take place preferably in alternation. The control program is interrupted at fixed times, and during the interruption, a special program for data detection or data output is performed. The method of the invention makes input data available continuously, which then can be called up during the normal control program course from working memories and from time to time input and output data is brought up to the most recent state. The computer includes at least two program memories, a fixed point memory for control parameters, a time control device for the interruption each time of the control program and memories, associated directly with the computer, for input and output data or signals.

Method and apparatus for determining the individual manipulated

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Weissach, Germany

Jurgen Pischke