Startup-time control apparatus and stop-time control...

Details Startup-time control apparatus and stop-time control... Startup-time control apparatus and stop-time control...

2007-09-25

2007-09-25

Cronin, Stephen K. (Department: 3747)

Internal-combustion engines

Starting device

With fuel or intake air control

C123S491000

Reexamination Certificate

active

11633411

ABSTRACT:
If it is determined that the present engine startup is a high-temperature startup, immediately fuel injection in concert with start of cranking is prohibited. After a delay time elapses following the start of cranking, or when THC<THCh is satisfied, fuel injection is started. Therefore, the cranking during the delay time cools interior of the combustion chambers. Since fuel injection starts after the cooling, pre-ignition can be prevented.

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