TARGET WHEEL FOR CAM SHAFT SENSOR CAPABLE OF 90 DEGREE DEVISION RECOGNITION AND FUEL INJECTION CONTROL METHOD AT STARTING TIME

摘要

According to the present invention, the cam position can be determined immediately after 1 TDC (90 degrees) of cracking is determined using a target wheel capable of 90 degree division recognition, that is, cylinder discrimination is possible. Target wheel for camshaft sensor and 90 ° split recognition to prevent wetting of injected fuel by sequential injection and sequential injection only for a period and to reduce emission gas. It relates to a fuel injection control method.;According to the present invention, a camshaft sensor target wheel includes four quadrants whose radius is changed every 90 degrees, and the radius of each quadrant (Ra, Rb, Rc, Rd) is small, medium, large, and medium. The two quadrants having the intermediate lengths Rb and Rd facing each other have similar areas.;In the present invention, since the target wheel is capable of 90 degrees of segmentation recognition, the cylinder can be discriminated immediately after 1 TDC (90 degrees) has elapsed after the cranking determination. The injected fuel can be prevented from being wetted and the emission gas can be reduced accordingly.