Apparatus for controlling an electrical switching element in internal combustion engines

US4231345A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Ulrich Drews · Schwieberdingen, DE
• Hans Schnurle · Walheim, DE
• Michael Horbelt · Schwieberdingen, DE
• Bernhard Schmidt · Neunkirchen, DE
• Peter Werner · Wiernsheim, DE

Key dates

• Filing date: Mar 27, 1979
• Grant date: Nov 4, 1980
• Expiry date: Mar 27, 1999

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/6983
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

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.