초록 ▼

An engine includes an electronic controller which samples the pressure in the induction system once per rotation of the crankshaft. The controller is configured to determine the minimum voltage signal output by the pressure sensor. The controller then uses the minimum pressure sensed by the pressure

An engine includes an electronic controller which samples the pressure in the induction system once per rotation of the crankshaft. The controller is configured to determine the minimum voltage signal output by the pressure sensor. The controller then uses the minimum pressure sensed by the pressure sensor to control the fuel injection of the engine. The controller may include two and/or three dimensional maps for predicting the appropriate timing for sampling the pressure sensor. The engine also includes a smoothing system so as to provide for more accurate sampling of the pressure within the induction system.

대표청구항 ▼

1. An engine comprising an engine body defining at least one cylinder bore and at least one piston which together define at least one combustion chamber therein, a crankshaft rotatably journaled at least partially within the engine body, an induction system configured to guide induction air into the

1. An engine comprising an engine body defining at least one cylinder bore and at least one piston which together define at least one combustion chamber therein, a crankshaft rotatably journaled at least partially within the engine body, an induction system configured to guide induction air into the combustion chamber, a pressure sensor assembly configured to detect a pressure of an air flow in the induction system and to output a pressure signal indicative of the pressure detected, a charge former configured to supply a fuel charge for combustion in the combustion chamber, a controller configured to control the charge former as a function of at least the pressure signal, and a smoother system configured to smooth at least one of the pressure signal and the air flow in the induction system in the vicinity of the pressure sensor assembly, so as to preserve a pressure signal fluctuation corresponding to movement of the piston during an intake stroke.