Electrically-actuated throttle device for general-purpose engine

An electronic speed regulation, internal combustion engine technology, applied in electrical control, mechanical equipment, engine control and other directions, can solve the problems of reduced starting performance, exhausted batteries, and a lot of battery power consumption, and achieves improved starting performance and prevents power reduction. Effect

Active Publication Date: 2006-11-29
HONDA MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the power supply to the electric actuator is started at the same time as the power of the device is turned on, the battery power is consumed a lot before the engine is started, so the electric power supplied to the starter motor for starting the engine is reduced, resulting in poor starting performance. reduce the occurrence of such disadvantages
In addition, when the engine does not start after the power is turned on, it may cause the battery to be exhausted prematurely

Method used

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  • Electrically-actuated throttle device for general-purpose engine
  • Electrically-actuated throttle device for general-purpose engine
  • Electrically-actuated throttle device for general-purpose engine

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Embodiment Construction

[0017] Below, with reference to accompanying drawing, to the electronic governor device of universal type internal combustion engine of the present invention the best

[0018] Embodiments will be described.

[0019] figure 1 It is an overall view of the electronic speed control device for a general-purpose internal combustion engine according to the first embodiment of the present invention.

[0020] exist figure 1 In , reference numeral 10 denotes a general-purpose internal combustion engine (hereinafter referred to as "engine"). The engine 10 is an air-cooled 4-stroke single-cylinder OHV engine (displacement, eg, 400 cc), and is used as a drive source for various applications such as a power generator and agricultural machinery.

[0021] A piston 14 is housed in a cylinder (cylinder block) 12 of the engine 10 so as to be able to reciprocate freely. A cylinder head 16 is installed on the top of the cylinder 12 , a combustion chamber 18 is provided at a position facing the...

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PUM

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Abstract

In an electrically-actuated throttle device for a general-purpose engine, supply of current to the throttle motor and choke motor for moving the throttle valve and choke valve is started when cranking is detected after activation (power-up) of the electronic control unit (ECU). In other words, supply of current is not started simultaneously with activation of the ECU but is delayed until cranking is detected. Owing to this configuration, no power of the battery is consumed unnecessarily between power-up and starting of the engine. Decrease in the power supplied to the starter motor is therefore prevented, thereby improving the starting performance of the engine. In addition, even if starting of the engine is not commenced after power-up, the battery is not likely to be excessively discharged.

Description

technical field [0001] The invention relates to an electronic speed regulating device for a general-purpose internal combustion engine. Background technique [0002] For general-purpose internal combustion engines used as driving sources for various purposes such as generators and agricultural machinery, in recent years, a technology has been proposed in which the throttle valve arranged in the intake passage is opened and closed by an electric actuator, that is, by electronic The governor adjusts the engine speed. In addition, for example, Patent Document 1 (JP-A-4-116256) discloses an electronic speed control device in which, in addition to a throttle valve, a choke valve is also opened and closed by an electric actuator. [0003] In electronic speed control devices, stepping motors are usually used as the above-mentioned electric actuators. Therefore, before starting to control the electric actuator, it is necessary to perform initialization processing [specifically, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/06
Inventor 福岛友树小野泰秀
Owner HONDA MOTOR CO LTD
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