JPS6440757A - Controller for continuously variable transmission - Google Patents
Controller for continuously variable transmissionInfo
- 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
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.
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)
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 |
-
1987
- 1987-07-31 JP JP62193502A patent/JP2707550B2/en not_active Expired - Lifetime
Cited By (10)
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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