Easy engine starting system
AssigneesYamabiko Corporation, Oppama Industry Co., Ltd.
InventorsAkira Tanabe, Tamotsu Saito, Ryosuke Imai, Ryosuke Kajiyama
Life of this patent
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Abstract
Provided is an easy engine starting system including: an engine; a centrifugal clutch configured to transmit a driving force of the engine to a driven device; and a control device configured to adjust output of the engine. When the engine is to be started, the engine is accelerated at start engine output which enables the engine to reach a rotation speed higher than a clutch-in rotation speed. The control device has suppression control of suppressing, at the start engine output, the rotation speed to a rotation speed equal to or lower than the clutch-in rotation speed.
Claims14
An easy engine starting system, comprising:
- an engine having a carburetor;
- a centrifugal clutch configured to transmit a driving force of the engine to a driven device;
- and
- a control device configured to adjust output of the engine,
- wherein, when the engine is to be started, the engine is accelerated, using control by the carburetor of an air-fuel mixture that flows into the engine, at start engine output which enables the engine to reach a rotation speed higher than a clutch-in rotation speed,
- wherein the control device is configured to control the engine in a start mode, a first start-time PI control step that follows the start mode, and a second start-time PI control step that follows the first start-time PI control step, and
- wherein the control device is configured to transition from the start mode to the first start-time PI control step based on a number of engine rotations, and
- wherein the control device is configured to transition from the first start-time PI control step to the second start-time PI control step based on a temperature of the engine.
Dependencies are inferred from the claim text.