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Stopping method for engine reverse positioning pressure reduction

A technology of engine and decompression mechanism, applied in engine components, engine control, machine/engine, etc., can solve the problems of small engine compression resistance, large engine compression resistance, and excessive reversal angle, so as to reduce starting resistance and improve The effect of rotating speed and prolonging working time

Active Publication Date: 2016-06-15
CHONGQING LIHUA AUTOMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) The engine compression resistance is too small so that the reverse angle does not enter the starting end of the decompression mechanism;
[0006] 3) Excessive compression resistance of the engine causes the reverse angle to exceed the end end of the decompression mechanism

Method used

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  • Stopping method for engine reverse positioning pressure reduction
  • Stopping method for engine reverse positioning pressure reduction
  • Stopping method for engine reverse positioning pressure reduction

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Embodiment Construction

[0034] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] like figure 1 , figure 2 , Figure 5 , Image 6 As shown, the present invention carries out the shutdown method of reverse positioning decompression when a kind of engine shuts down, and its steps are:

[0036] 1) Before the engine is about to stop, drive the motor forward to make the engine forward to the reset point of the decompression mechanism and then stop;

[0037] 2) The drive motor is reversed, the engine is reversely positioned, the decompression mechanism of the engine enters the position between the starting point and the end point of the decompression state, and the motor drive is stopped.

[0038] This embodiment responds to the control when the engine is stopped. During the process of each engine flameout to complete stop, the reverse positioning method is carried out, so that the engine is always in a depressuriz...

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PUM

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Abstract

The invention discloses a stopping method for engine reverse positioning pressure reduction. The stopping method comprises the steps that firstly, before an engine is about to stall, a motor is driven to rotate forwards, and the engine is stopped after rotating forwards to a reset point of a pressure reduction mechanism; the motor is driven to reversely rotate, the engine is reversely positioned, the pressure reduction mechanism of the engine enters the position between the starting point and the finishing point of the pressure reduction state, and driving of the motor is stopped; and the method is adopted to enable the engine to be in the pressure reduction state before the engine is started, loads of the engine during starting are reduced, and therefore the engine can rapidly response to starting operation so as to enable a vehicle to be started, and the starting performance is improved.

Description

technical field [0001] The invention belongs to the technical field of engine startup, and in particular relates to a shutdown method for engine reverse positioning and decompression. Background technique [0002] In the prior art, a decompression mechanism of a reverse rotation mechanism is used when the motorcycle is started. Relying on inertial operation, due to the resistance of the compression stroke, the piston stops before reaching the compression top dead center and moves down to reverse the crankshaft. As soon as the crankshaft reverses, the decompression mechanism starts to work and lifts a valve, and the valve opens the cylinder When there is no pressure inside, the engine will reduce the compression resistance to make starting easier when the motor is started next time. As long as the crankshaft rotates forward and passes through the compression stroke and the power stroke, the opening of the valve will be released after entering the exhaust stroke. [0003] In ...

Claims

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Application Information

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IPC IPC(8): F02D17/04F01L13/08
CPCF01L13/08F02D17/04
Inventor 何林刘小勇郭成美严仕涛
Owner CHONGQING LIHUA AUTOMATION TECH CO LTD
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