JPS64334A - Throttle valve control device - Google Patents

Throttle valve control device

Info

Publication number
JPS64334A
JPS64334A JP15491887A JP15491887A JPS64334A JP S64334 A JPS64334 A JP S64334A JP 15491887 A JP15491887 A JP 15491887A JP 15491887 A JP15491887 A JP 15491887A JP S64334 A JPS64334 A JP S64334A
Authority
JP
Japan
Prior art keywords
throttle valve
opening
minimum opening
drive
step motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15491887A
Other languages
Japanese (ja)
Other versions
JPH01334A (en
Inventor
Tomoaki Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP62-154918A priority Critical patent/JPH01334A/en
Priority claimed from JP62-154918A external-priority patent/JPH01334A/en
Publication of JPS64334A publication Critical patent/JPS64334A/en
Publication of JPH01334A publication Critical patent/JPH01334A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To raise up reliability of the device in the title on emergency of an opening sensor by controlling a step motor for a throttle valve so that it makes a turning movement larger than its movement required from the present opening to the minimum opening, when a drive status for driving a throttle valve until its minimum opening is detected.
CONSTITUTION: Opening of a throttle valve TB is controlled by controlling a step motor SM in response to an output from a running status detecting means DD which can detect the running status including an operation amount of an acceleration part AR. In this device, a check means C1 is provided so as to check the drive of the throttle valve TB, when the throttle valve TB is driven to its minimum opening. A minimum opening drive detecting means C2 is also provided, which can detect the throttle valve minimum opening drive status from an output of the detecting means DD. An exciting signal correspond ing to a moving amount of the throttle valve more than that from the present opening to the minimum opening is outputted from the step motor SM by a minimum opening exciting means C3, when the minimum opening drive status is detected.
COPYRIGHT: (C)1989,JPO&Japio
JP62-154918A 1987-06-22 Throttle valve control device Pending JPH01334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-154918A JPH01334A (en) 1987-06-22 Throttle valve control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-154918A JPH01334A (en) 1987-06-22 Throttle valve control device

Publications (2)

Publication Number Publication Date
JPS64334A true JPS64334A (en) 1989-01-05
JPH01334A JPH01334A (en) 1989-01-05

Family

ID=

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