JPS6440757A - Controller for continuously variable transmission - Google Patents

Controller for continuously variable transmission

Info

Publication number
JPS6440757A
JPS6440757A JP62193502A JP19350287A JPS6440757A JP S6440757 A JPS6440757 A JP S6440757A JP 62193502 A JP62193502 A JP 62193502A JP 19350287 A JP19350287 A JP 19350287A JP S6440757 A JPS6440757 A JP S6440757A
Authority
JP
Japan
Prior art keywords
differential pressure
control
accelerator pedal
operation amount
pedal operation
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.)
Granted
Application number
JP62193502A
Other languages
Japanese (ja)
Other versions
JP2707550B2 (en
Inventor
Yasuo Kita
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.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP62193502A priority Critical patent/JP2707550B2/en
Publication of JPS6440757A publication Critical patent/JPS6440757A/en
Application granted granted Critical
Publication of JP2707550B2 publication Critical patent/JP2707550B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a vehicle from automatic start by providing an auxiliary change gear ratio control means for controlling the gear change ratio in presence to the control by a speed change control means within the start range of accelerator pedal operation amount of a predetermined value or less so that differential pressure between the outlet and inlet of a hydraulic pump/motor does not exceed a differential pressure limit curve. CONSTITUTION:Within the start range of a predetermined value or less of an accelerator pedal operation amount is carried out auxiliary control in preference to the control of usual displacement volume. Namely, this auxiliary control adjusts the displacement volume of a fluid pump motor 8 so that the differential pressure detected by a differential pressure sensor 57 is equalized to the upper limit value selected according to the accelerator pedal operation amount. Thus, even if the rotational speed of an engine 20 exceeds a desired one, the gear change ratio will not be controlled in the direction of increasing a load on the engine. Thus, if a differential pressure limit curve is set properly previously, a vehicle is prevented from automatic start usually as well as in idling.
JP62193502A 1987-07-31 1987-07-31 Control device for continuously variable transmission Expired - Lifetime JP2707550B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62193502A JP2707550B2 (en) 1987-07-31 1987-07-31 Control device for continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62193502A JP2707550B2 (en) 1987-07-31 1987-07-31 Control device for continuously variable transmission

Publications (2)

Publication Number Publication Date
JPS6440757A true JPS6440757A (en) 1989-02-13
JP2707550B2 JP2707550B2 (en) 1998-01-28

Family

ID=16309117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62193502A Expired - Lifetime JP2707550B2 (en) 1987-07-31 1987-07-31 Control device for continuously variable transmission

Country Status (1)

Country Link
JP (1) JP2707550B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992009833A1 (en) * 1990-11-30 1992-06-11 Shimadzu Corporation Stepless speed change gear for vehicle
WO2015097912A1 (en) * 2013-12-27 2015-07-02 株式会社小松製作所 Forklift and forklift control method
WO2015097901A1 (en) * 2013-12-27 2015-07-02 株式会社小松製作所 Forklift and forklift control method
WO2015097900A1 (en) * 2013-12-27 2015-07-02 株式会社小松製作所 Forklift and forklift control method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992009833A1 (en) * 1990-11-30 1992-06-11 Shimadzu Corporation Stepless speed change gear for vehicle
WO2015097912A1 (en) * 2013-12-27 2015-07-02 株式会社小松製作所 Forklift and forklift control method
WO2015097901A1 (en) * 2013-12-27 2015-07-02 株式会社小松製作所 Forklift and forklift control method
WO2015097900A1 (en) * 2013-12-27 2015-07-02 株式会社小松製作所 Forklift and forklift control method
CN104884144A (en) * 2013-12-27 2015-09-02 株式会社小松制作所 Forklift and control method thereof
CN104884380A (en) * 2013-12-27 2015-09-02 株式会社小松制作所 Forklift and forklift control method
US9221657B2 (en) 2013-12-27 2015-12-29 Komatsu Ltd. Forklift and control method of forklift
CN104884144B (en) * 2013-12-27 2016-10-19 株式会社小松制作所 Fork truck and the control method of fork truck
US9580075B2 (en) 2013-12-27 2017-02-28 Komatsu Ltd. Forklift and control method of forklift
US9676600B2 (en) 2013-12-27 2017-06-13 Komatsu Ltd. Forklift and control method of forklift

Also Published As

Publication number Publication date
JP2707550B2 (en) 1998-01-28

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