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1. (WO2001038725) PULSE START METHOD AND PULSE START DEVICE FOR AN INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2001/038725    International Application No.:    PCT/DE2000/003391
Publication Date: Fri Jun 01 01:59:59 CEST 2001 International Filing Date: Fri Sep 29 01:59:59 CEST 2000
IPC: F02N 5/04
Applicants: ROBERT BOSCH GMBH
GROB, Ferdinand
AHNER, Peter
ACKERMANN, Manfred
Inventors: GROB, Ferdinand
AHNER, Peter
ACKERMANN, Manfred
Title: PULSE START METHOD AND PULSE START DEVICE FOR AN INTERNAL COMBUSTION ENGINE
Abstract:
The invention relates to a pulse start method for an internal combustion engine according to which a balance weight is accelerated in a rotationally driven manner during a wind-up phase and, during a coupling phase, the rotating balance weight is subsequently coupled to a rotationally mounted shaft, preferably to a crankshaft, of the internal combustion engine in order to transmit torque. The inventive method is characterized in that the progression of the rotational speed of the balance weight (3) is evaluated during the wind-up phase (15) and/or coupling phase (21, 22), and in that this evaluation is used to determine whether it is possible to successfully start the internal combustion engine (1). In the case that a successful start is not expected, the shaft (2) brings the internal combustion engine (1) into an operating position that is favorable for executing a successive second start attempt.