Title:
エンジン用制御装置
Document Type and Number:
Japanese Patent JP6952183
Kind Code:
B2
Abstract:
An engine control device that controls electronic components of an engine, including an ignition device, by using a microcomputer that is operated by a power source voltage supplied from a control-use power source unit for which a generator driven by the engine is the power source. A step-down circuit, which uses a capacitor-discharge type device as the ignition device, steps down the voltage at both ends of the capacitor of this ignition device, and applies the resulting voltage to a power source line of the microcomputer, is provided, and in the process of stopping the engine the power source voltage from the step-down circuit is supplied to the microcomputer, thereby enabling the operational state of the microcomputer to be maintained even after the power source voltage supplied from the control-use power source unit to the microcomputer is depleted when the engine stops; thus, the microcomputer can be made to reliably carry out a process when the engine is stopped.
Inventors:
Tomoaki Sekita
Application Number:
JP2020501949A
Publication Date:
October 20, 2021
Filing Date:
February 23, 2018
Export Citation:
Assignee:
Mare Electric Drives Japan Co., Ltd.
International Classes:
F02P5/15; F02D45/00; F02P5/145
Domestic Patent References:
| JP2005180281A | ||||
| JP2018025132A | ||||
| JP11132077A | ||||
| JP2018028298A | ||||
| JP2012007575A | ||||
| JP2013177830A |
Attorney, Agent or Firm:
Toru Kikuchi
Shinichi Kikuchi
Hidetoshi Matsumoto
Shinichi Kikuchi
Hidetoshi Matsumoto