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Title:
CONTROLLER FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3257417
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To prevent an erroneous decision that a gear location is a neutral location when a gear shift switch becomes its opened state in a process switching a transmission.
SOLUTION: Voltage between an output terminal P of a gear shift switch 1 and a movable contact M is inputted in a gear location detection voltage generation circuit 2 and gear location detection voltage Vg is obtained. Whether the movable contact M of the gear shift switch 1 is located at the location corresponding to any shift location of a transmission or the gear shift switch 1 is in its opened state is discriminated by inputting gear location detection voltage Vg in a microcomputer 4 and comparing voltage Vg with voltage for decision. When the continuous time for the opened state of the gear shift switch 1 is measured, the continuous time for the opened state is compared with a set value and the continuous time for the opened state becomes the set value or more, it is decided that the transmission is located at a neutral location.


Inventors:
Hiroyuki Horibe
Application Number:
JP25282496A
Publication Date:
February 18, 2002
Filing Date:
September 25, 1996
Export Citation:
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Assignee:
Kokusan Denki Co., Ltd.
International Classes:
F02P11/04; F02D29/00; F02P5/15; F16H59/70; (IPC1-7): F16H59/70; F02D29/00; F02P5/15; F02P11/04
Domestic Patent References:
JP6357943A
JP712216A
JP7301313A
Attorney, Agent or Firm:
Hidetoshi Matsumoto (1 outside)