Reduced speed method of motorcycle injection type engines

A jet-type, motorcycle technology, applied in the direction of fuel injection control, engine control, machine/engine, etc., can solve the problems of engine 11 speed reduction, exhaust pollution, flameout, etc., to improve riding commerciality, reduce Fuel waste and reduction of exhaust pollution

Inactive Publication Date: 2008-10-01
KYMCO
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Problems solved by technology

[0006] However, for this fuel injection method, because the fuel is cut off instantly, there will be no fuel supply in the engine 11 for a period of time. At this time, the engine 11 speed decreases too much, and it may cause a flameout phenomenon when entering idle speed. , so that the commerciality of engine 11 is not good
[0007

Method used

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  • Reduced speed method of motorcycle injection type engines
  • Reduced speed method of motorcycle injection type engines
  • Reduced speed method of motorcycle injection type engines

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[0024] The foregoing and other technical contents, features and effects of the present invention will be described in detail below with reference to the preferred embodiments of the accompanying drawings.

[0025] refer to image 3 , the preferred embodiment of the deceleration method 2 of the motorcycle jet engine of the present invention includes a deceleration step 21, a high rotation speed detection step 22, a first control step 23, a low rotation speed detection step 24, a second control step 25, and idle speed control. Step 26.

[0026] The deceleration step 21 is used to reduce the amount of fuel injected by the electronic control unit into the engine, and the high-speed detection step 22 is to detect the speed reduction rate of the engine in the deceleration step 21 per unit time, and then the first control step 23 is performed, When the speed reduction range detected in the high speed detection step 22 is greater than the predetermined value, the electronic control u...

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Abstract

The invention relates to a speed reduction method for a jet engine of a motorcycle, comprising the steps of speed reducing, high rotating speed detecting, first controlling, low rotating speed detecting, second controlling and idle speed controlling. The reduction amplitude of the rotating speed of the engine is judged in the first controlling step, and then the fuel oil injection strategy for an electronic control unit is determined, so that when the motorcycle slows down, no excessive fuel oil is injected into the engine, the fuel oil waste is effectively reduced, the exhaust pollution is lowered, and the oil sediment on an exhaust pipe is avoided; in addition, in the second controlling step and the idle speed controlling step, the amount of fuel oil injected to the engine is controlled, the case that engine flameout caused by lack of fuel oil in the process of speed reducing and speed idling is prevented, thus to effectively improve the ride marketability of the motorcycle.

Description

technical field [0001] The invention relates to a deceleration method, in particular to a deceleration method for a jet engine of a motorcycle. technical background [0002] refer to figure 1 , the flow process of the jet engine 11 of a general motorcycle is that the electronic control unit 12 controls an appropriate amount of fuel to be injected into the jet engine 11 through the injection device 15, and becomes oil mist, and is sent out by the electronic control unit 12. The ignition signal controls the ignition device 13 to ignite the oil mist, so that the reciprocating motion of the piston 14 generates power, and the injection engine 11 is actuated. Therefore, some technologies have been commonly used in the industry, so they will not be described again. [0003] refer to figure 2 , when the motorcycle is converted to an idle state at a constant speed, that is to say, the situation of releasing the accelerator (the opening of the accelerator is 0). At this time, the ...

Claims

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Application Information

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IPC IPC(8): F02D41/08
Inventor 黄祥熙陈俊雄
Owner KYMCO
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