System and method for starting a vehicle

Details System and method for starting a vehicle System and method for starting a vehicle

2005-07-22

2009-11-03

Cronin, Stephen K (Department: 3747)

Internal-combustion engines

Starting device

Condition responsive control of starting device

Reexamination Certificate

active

07610892

ABSTRACT:
The present invention provides a system and method for starting a vehicle in a cold temperature environment and minimizing the time spent by the vehicle within a resonance frequency zone during operation. The present invention includes a method of starting a vehicle engine comprising adjusting the speed of the engine during an engine start mode in accordance with a fixed value threshold. The method also includes determining whether the engine speed has reached the fixed value threshold or whether a time-based threshold has been reached. The method further includes transitioning out of the engine start mode into a normal operating mode when either the fixed value threshold or the time-based threshold has been reached.

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