Fuel injection control system

摘要

A fuel injection control system provided with a throttle by wire (TBW) system detecting an operation condition of a throttle grip and controlling, via an actuator, a throttle valve. The control system detects the throttle valve opening and controls an injector. An increased quantity correction value is determined based upon of an output of a throttle valve opening sensor and an operation condition of the throttle grip. When an acceleration condition of a vehicle is detected according to the output of the throttle valve opening sensor, an increased quantity correction of fuel is performed. The increased quantity correction value is brought to an attenuation condition in which the increased quantity correction value is gradually decreased, or a stop condition in which the increased quantity correction value is made to zero, when the throttle grip is not in drive in an opening direction, even though an acceleration condition is detected.

主权项

1. A fuel injection control system for a vehicle, which is provided with a throttle by wire (TBW) system detecting an operation condition of throttle operator and controls, via an actuator, a throttle valve provided in an intake system of an engine and adapted to detect an opening of the throttle valve and determine a fuel injection quantity, the fuel injection control system comprising:
a throttle operation condition detector that serves to detect the operation condition of the throttle operator; a throttle valve opening detector that serves to detect the opening of the throttle valve; and a fuel injection quantity controller that serves to control fuel injection via a fuel injection valve provided at the engine; wherein the fuel injection quantity controller determines an increased quantity correction value based upon an output of the throttle valve opening detector and the operation condition of the throttle operator, and wherein said fuel injection quantity controller is operable to detect an acceleration condition of the vehicle according to the output of the throttle valve opening and perform correction of an increase in quantity of fuel in response thereto; wherein the fuel injection quantity controller is adapted to cause the increased quantity correction value to be brought to an attenuation condition in which the increased quantity correction value is gradually attenuated, or a stop condition in which the increased quantity correction value is made to be zero, when the acceleration condition of the vehicle is detected and the operation condition of the throttle operator is not in drive in an opening direction.