초록 ▼

An engine control system and method that utilizes throttle position as one of its control parameters. The throttle position sensor is checked by sensing changed values in a time period when the engine is operating within a predetermined speed range during which changes in throttle position are not n

An engine control system and method that utilizes throttle position as one of its control parameters. The throttle position sensor is checked by sensing changed values in a time period when the engine is operating within a predetermined speed range during which changes in throttle position are not normally encountered.

대표청구항 ▼

[ I claim:] [1.] An engine control system for an internal combustion engine having a combustion chamber, an air fuel induction system for delivering an air fuel charge to said combustion chamber, an ignition system for igniting the charge in said combustion chamber, an operator demand throttle contr

[ I claim:] [1.] An engine control system for an internal combustion engine having a combustion chamber, an air fuel induction system for delivering an air fuel charge to said combustion chamber, an ignition system for igniting the charge in said combustion chamber, an operator demand throttle control for controlling the engine output in response to operator demand, a throttle position sensor for sensing the position of said throttle control, control means for controlling said air fuel charging system and said ignition system in response to sensed engine condition including the condition of said throttle position sensor for controlling engine operation, means for detecting whether the output of said throttle position sensor is accurate by checking to determine if there are changes in its output signal when the engine is judged to be operating in a speed range where throttle position changes are not normally encountered, and providing an indication of abnormality of the throttle position sensor output if the output varies within that speed range.