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Starter, start control device, and crank angle detector of internal combustion engine

A starting control device and the technology of the starting device, which are applied in the directions of engine starting, engine control, fuel injection control, etc., can solve problems such as increasing cost, and achieve the effect of high-efficiency engine starting and shortening of starting time.

Inactive Publication Date: 2003-04-23
MITSUBA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, if the number of journals is increased in this way, the number of man-hours for processing increases accordingly, and if it is desired to perform precise control by increasing the number of journals, there is a problem that the cost increases accordingly.

Method used

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  • Starter, start control device, and crank angle detector of internal combustion engine
  • Starter, start control device, and crank angle detector of internal combustion engine
  • Starter, start control device, and crank angle detector of internal combustion engine

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Embodiment Construction

[0050] Below, we describe the embodiment of the present invention in detail according to the accompanying drawings.

[0051] (Embodiment 1)

[0052] 1 is a cross-sectional view showing the structure of a starter motor applied to an engine starting device according to Embodiment 1 of the present invention. FIG. 2 is a front view of the starter motor of FIG. 1 omitting a casing and a cover. FIG. A block diagram of the composition of the starter motor control system.

[0053] The starter motor (hereinafter abbreviated as motor) 10 of FIG. 1 is directly connected to a 4-cycle engine used in a motorcycle, and has a stator 12 fixed on an engine case 11 of the engine, and a rotor (rotating) connected to an engine crankshaft 13. Body) 14.

[0054] The rotor 14 is provided with a bottomed short cylindrical yoke 15 made of a magnetic material such as iron, and a cylindrical protrusion 16 is integrally protruded from the inner surface of the bottom wall of the yoke 15 . The protruding...

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Abstract

A start control device of an internal combustion engine capable of realizing a more efficient start control of the engine by recognizing the absolute angle of an engine crank shaft, wherein the absolute angle of the crankshaft (13) is calculated based on the ignition reference signal of the engine and the commutation position pulse signal of a starter motor (10) and the starter motor (10) is controlled based on the absolute angle. The starter motor (10) is rotated reversely based on the calculated absolute angle, and rotated forwardly to start the engine after the crankshaft (13) is temporarily rotated reversely to an expansion stroke, whereby, because the timing of the crankshaft (13) from reverse to forward rotation is controlled accurately by the absolute angle to enable an efficient engine start control, an efficient inertia start control can be realized, and the absolute angle of the crankshaft (13) of the engine can be recognized accurately by a crank angle detector without increasing the number of reluctors (40).

Description

technical field [0001] The present invention relates to an internal combustion engine starter and an internal combustion engine start control device suitable for starting an internal combustion engine such as a motorcycle or an automobile. Also, the present invention relates to a crank angle detection device suitable for use in internal combustion engines such as motorcycles and automobiles. Background technique [0002] When starting the engine (internal combustion engine), in order to inhale, compress and detonate the fuel mixture, the crankshaft must be rotated by an external force until the desired rotation is maintained. In order to start the engine, a battery can be used as the starting device of the driving source, that is, the starter. [0003] Among conventional starters, there are those in which the rotation of the motor is transmitted to the rotation of the crankshaft through a reduction mechanism, and those in which the motor is directly connected to the cranksha...

Claims

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Application Information

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IPC IPC(8): F02D41/06F02D41/34F02N11/00F02N11/06F02N11/08F02N19/00F02N99/00F02P7/067
CPCF02N19/005F02N11/08F02D2041/0092F02D41/062F02N11/00F02P7/0675F02D41/009F02N99/006F02N2019/007
Inventor 稻叶光则野末裕内山英和
Owner MITSUBA CORP
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