Cylinder pressure based air-fuel ratio and engine control

摘要: A system and method for controlling an air-fuel ratio of internal combustion engine using a cylinder pressures measured within at least one cylinder. The control includes electronic module (ECM) which computes pressure the predetermined crank angle before top dead center after center. is compared with optimal ratio. Based upon results this comparison, ECM then determines adjusted would modify to equal This controls by measuring quality without need measure amount air or fuel actually delivered engine. corresponds excess those operating conditions, wherein may be obtained from computed specific conditions currently being sensed, stored