Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE, INTERNAL COMBUSTION ENGINE CONTROL SYSTEM, AND CONTROL METHOD OF INTERNAL COMBUSTION ENGINE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2018062916
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve countermeasures at the time of a failure and the convenience of maintenance by determining at least any of a short circuit failure in the output of an oxygen sensor, a disconnection failure in the output of the oxygen sensor, a closing failure in an actuator and an opening failure in the actuator.SOLUTION: In an internal combustion engine control device, an oxygen sensor for detecting an oxygen concentration in the exhaust pipe of a carburetor type internal combustion engine controls at least a carburetor and the internal combustion engine on the basis of the sensor voltage outputted between a first detection terminal and a second detection terminal. The internal combustion engine control device comprises a first connection terminal connected to the first detection terminal, a second connection terminal connected to the second detection terminal and to a fixed potential, a voltage detection circuit outputting a detection signal based on the voltage between the first connection terminal and the second connection terminal, and a control part for controlling the actuator of the carburetor on the basis of the detection signal.SELECTED DRAWING: Figure 1
Inventors:
OSAKI SHINGO
KUROKAWA TOMOHIRO
KUROKAWA TOMOHIRO
Application Number:
JP2016202441A
Publication Date:
April 19, 2018
Filing Date:
October 14, 2016
Export Citation:
Assignee:
SHINDENGEN ELECTRIC MFG
International Classes:
F02D45/00; F02D41/14; F02D41/22; F02D43/00; F02M7/24
Domestic Patent References:
| JPS5830446A | 1983-02-22 | |||
| JP2011203131A | 2011-10-13 | |||
| JPH01224433A | 1989-09-07 | |||
| JPH0565840A | 1993-03-19 | |||
| JPH07145749A | 1995-06-06 | |||
| JPH07198659A | 1995-08-01 | |||
| JPH02199247A | 1990-08-07 |
Attorney, Agent or Firm:
Tomoya Deguchi
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura