摘要:
Object To facilitate connecting work of an outside conductor to a connector for an electric actuator having an electric motor in an air intake control system for an internal combustion engine of a vehicle in which a throttle body having a throttle valve is connected to an intake port of a cylinder head, which an engine main body is provided with, and the electric actuator is arranged on the throttle body to drive open or close the throttle valve. Solving Means Connectors 88 disposed on housings 83 of electric actuators AF,AR to connect outside conductors to electric motors 77 are arranged facing toward one axial end of a crankshaft 21.
摘要:
To achieve favorable continuity of an intake air amount and an operation amount of a throttle grip (3) during and after an idle operation in a throttle control system of a TBW system. An operation amount detecting unit (17) detects an operation amount of a throttle grip (3) from a zero position. A basic throttle opening degree computing unit (18) computes a basic throttle opening degree corresponding to the operation amount. A throttle opening degree additional value computing unit (20) outputs as a target throttle opening degree a value obtained by adding the basic throttle opening degree with a throttle opening degree additional value corresponding to the operation amount when the operation of the throttle grip (3) is performed within a small operation region corresponding to an idle operation. The throttle opening degree additional value computing unit (20) outputs as the target throttle opening degree the basic throttle opening degree when the operation of the throttle grip (3) is performed without the small operation region.
摘要:
Object: In an intake air control device in which a valve shaft extending in the left and right direction of a vehicle body frame across an air intake path is rotatably supported by an air intake path forming body connected to an engine body, to equalize the distances from a center of the vehicle body frame in the left and right direction to both ends of the intake air control device when arranging the air intake path forming body at the center of the vehicle body frame in the left and right direction. Means for Resolution: An actuator (26) including an electric motor(28)which can demonstrate a motive power to drive a valve shaft (24) to rotate is connected to one end of the valve shaft (24), and a throttle operating amount sensor (27) for detecting the throttle operating amount by a vehicle operator is supported by the air intake path forming body (18) and connected to the other end of the valve shaft(24).
摘要:
The problem to be solved by the present invention is to provide a fuel injection controller capable of bringing the fuel injection amount closer to the ideal one. Solving Means We let the throttle opening at P2 be denoted by TH0. Here, P2 is a specific time later than the peak value of an intake pipe internal pressure PB of a previous cycle. In the cycle, P3 is a specific point that is set immediately before the calculation of the injection time shown by a rectangle filled with diagonal lines. We let the throttle opening at P3 be denoted by TH1. The injection amount is corrected based on a variation in correction time (ta0 to ta1). Effect Point P2 is later than point P1 as (f) in Fig. 4 . Therefore, the correction is completely unaffected or only slightly affected by the intake pipe internal pressure, if affected at all, thus ensuring close-to-ideal correction.
摘要:
The problem to be solved by the present invention is to provide a fuel injection controller capable of bringing the fuel injection amount closer to the ideal one. Solving Means We let the throttle opening at P2 be denoted by TH0. Here, P2 is a specific time later than the peak value of an intake pipe internal pressure PB of a previous cycle. In the cycle, P3 is a specific point that is set immediately before the calculation of the injection time shown by a rectangle filled with diagonal lines. We let the throttle opening at P3 be denoted by TH1. The injection amount is corrected based on a variation in correction time (ta0 to ta1). Effect Point P2 is later than point P1 as (f) in Fig. 4 . Therefore, the correction is completely unaffected or only slightly affected by the intake pipe internal pressure, if affected at all, thus ensuring close-to-ideal correction.
摘要:
An air-fuel ratio feedback control is provided To prevent over-rich and over-lean of an air-fuel mixture. An air-fuel ratio setting section 50 sets a target air-fuel ratio KCMD according to engine conditions. An air-fuel ratio correction coefficient calculating section 51 calculates an air-fuel ratio correction coefficient KAF for controlling the air-fuel ratio so that a detected air-fuel ratio KACT is converged to the target air-fuel ratio KCMD. To prevent over-rich and over-lean of the air-fuel mixture, a lower limit section 52 constrains the air-fuel ratio correction coefficient KAF so as not to underrun the lower limit value, and an upper limit section 53 constrains the air-fuel ratio correction coefficient KAF so as not to exceed the upper limit value. A basic fuel injection time determining section 54 calculates a basic fuel injection time TIM, and a fuel injection time calculating section 55 calculates a fuel injection time TOUT based on the target air-fuel ratio KCMD, the air-fuel ratio correction coefficient KAF, the basic fuel injection time TIM or the like, and various engine parameters.
摘要:
Object: In an intake air control device in which a valve shaft extending in the left and right direction of a vehicle body frame across an air intake path is rotatably supported by an air intake path forming body connected to an engine body, to equalize the distances from a center of the vehicle body frame in the left and right direction to both ends of the intake air control device when arranging the air intake path forming body at the center of the vehicle body frame in the left and right direction. Means for Resolution: An actuator (26) including an electric motor(28)which can demonstrate a motive power to drive a valve shaft (24) to rotate is connected to one end of the valve shaft (24), and a throttle operating amount sensor (27) for detecting the throttle operating amount by a vehicle operator is supported by the air intake path forming body (18) and connected to the other end of the valve shaft(24).