Device for influencing the starting of the internal combustion engine of a motor vehicle with electronically controlled gearbox

US5401222A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Henrich Wied · Winnenden, DE
• Ludwig Bauer · Stuttgart, DE
• Bernd Bertsche · Tuttlingen, DE

Key dates

• Filing date: May 21, 1993
• Grant date: Mar 28, 1995
• Expiry date: May 21, 2013

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H59/70
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A device is provided for influencing starting of an internal combustion engine of a motor vehicle that has an electronically controlled gearbox, an electrically acting interlock that prevents the internal combustion engine from being put into operation when a gearbox status causing a driving force connection is selected, and a starter with an electromagnetic disengagement switch that is suppliable with battery current from an ignition switch during actuation of the starter. The device has an electronic engine control unit for at least one of ignition and metering of fuel, with a communicative connection communicatively connecting the engine control unit to the gearbox control. A direct connection is provided from the ignition switch to the electromagnetic disengagement switch for supplying battery current to the electromagnetic disengagement switch without an intermediate disabling switch. A recorder records the position of an element influencing the gear-selection status of the gearbox and transmits a corresponding signal to the gearbox control. The gearbox control acts upon the engine control unit via the communicative connection to disable at least one of the ignition and the fu…