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AssigneeRobert Bosch GmbH
InventorsUlrich Drews, Hans Schnurle, Michael Horbelt, Bernhard Schmidt, Peter Werner
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This invention relates to an apparatus for controlling at least one electrical switching element in internal combustion engines, particularly the main relay of the voltage supply, in accordance with one operating characteristic and with a switch position which indicates an operating condition, in which the signal corresponding to the operating characteristic can be fed to a storage device whose charging and/or discharging process can be influenced by the switch relative to the ignition with the value of the storage signal serving to control the electrical switching element. Furthermore, the signal in accordance with the operating condition and, indirectly or directly, corresponding to the operating characteristic can be fed to a connection point whose output signal can be switched to a switching device for heating the heating wire in an air flow rate meter to a red-hot condition.
In an internal combustion engine having a fuel supply system, the combination of apparatus for controlling at least one electrical switching unit such as the main relay of the voltage supply and of the fuel pump control circuit in accordance with one operational characteristic and with a position of a switch such as an ignition switch indicating an operating condition, comprising a storage device for receiving a value of a signal related to a charging and discharging process, means for feeding a signal depending on one engine operational characteristic to said storage device, means for modifying at least one of the charging and discharging process determined by the switch position of the ignition switch for the engine, and means for utilizing the value of the signal stored in said storage device for controlling said electrical switching unit.
Dependencies are inferred from the claim text.