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Engine start controller, engine start control method

A starting control device and engine technology, which is applied in the direction of engine control, engine starting, engine motor starting, etc., and can solve the problems of cost increase

Inactive Publication Date: 2008-08-20
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires a relatively high reliability of the computer, which leads to an increase in cost

Method used

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  • Engine start controller, engine start control method
  • Engine start controller, engine start control method
  • Engine start controller, engine start control method

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Embodiment Construction

[0030] Embodiments of the present invention are described below with reference to the drawings. In the following description, the same reference numerals denote the same components. The components also have the same names and the same functions. Therefore, detailed descriptions of these components will not be repeated here.

[0031] first embodiment

[0032] An engine starting system according to a first embodiment of the present invention will now be described. like figure 1 As shown, the engine starting system includes an engine ECU (Electronic Control Unit) 100 that controls engine starting and engine rotation, a starter switch 200 connected to the engine ECU 100, a starter drive relay 300 connected to the engine ECU 100, and a starter drive relay 300 connected to the starter A starter 600 that drives a relay 300 and an engine rotational speed sensor 500 connected to the engine ECU 100 .

[0033] When the key is turned from the ON position of the ignition switch to the...

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PUM

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Abstract

An engine start system includes a starter (600) starting an engine, a starter drive relay (300) controlling the starter (600) and an engine ECU (100) connected to a starter switch (200) for controlling on / off of the starter drive relay (300) based on a predetermined start condition. The engine start system further includes a normally closed relay (400) connected to the starter switch (200), the engine ECU (100) and the starter (600) for establishing a de-energized state between the starter switch (200) and the starter (600) upon energization from the engine ECU (100) to an exciting coil and establishing an energized state between the starter switch (200) and the starter (600) upon de-energization of the exciting coil. The engine ECU (100) includes a circuit energizing the exciting coil of the normally closed relay (400) upon turn-on of the engine ECU (100).

Description

technical field [0001] The present invention relates to a starting control device for a vehicle engine. More specifically, the present invention relates to a start control device capable of starting an engine even when a computer controlling engine start is disabled. Background technique [0002] A vehicle engine is usually started by operation of an ignition switch. The ignition switch is operated by a key inserted into the keyhole and turned to a predetermined position. The ignition switch has an off (OFF) position for inserting and pulling out the ignition key; an accessory (ACC) position for powering on electronic accessories, such as vehicle audio systems; and an on (IG-ON) position , to energize the engine ignition system; and the Engine Start (ST) position, to energize the starter to start the engine. The ignition key in the engine start position will return to the on position unless the driver applies force to hold the key in the start position. The ignition key ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N11/08F02D45/00F02N15/00F02N11/10
CPCF02N2250/02F02N11/10F02D2400/14F02N11/08
Inventor 北川拓实
Owner TOYOTA JIDOSHA KK
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