Patent ID: 6234147
Filing Date: 2001-05-22
Classification: F02P,Y02T

Abstract:
An ignition timing control device for an internal combustion engine comprising:a throttle valve opening detecting means for detecting an opening of a throttle valve of the internal combustion engine;an opening retention detecting means for generating an opening retention detecting signal when said throttle valve opening detecting means detects that a width of the opening of the throttle valve is within a predetermined width for at least a first predetermined time in a state where the opening of the throttle valve is smaller than a predetermined low opening;means for generating a rapid acceleration detecting signal when said throttle valve opening detecting means detects that the opening of the throttle valve is increased from said predetermined low opening to greater than a predetermined high opening for a second predetermined time or less, immediately after generation of said opening retention detecting signal; anda retard control means for retarding the ignition timing of the internal combustion engine in response to said rapid acceleration detecting signal.