JPS6444350A - Method of controlling forward and backward movement of continuously variable transmission - Google Patents
Method of controlling forward and backward movement of continuously variable transmissionInfo
- Publication number
- JPS6444350A JPS6444350A JP62199422A JP19942287A JPS6444350A JP S6444350 A JPS6444350 A JP S6444350A JP 62199422 A JP62199422 A JP 62199422A JP 19942287 A JP19942287 A JP 19942287A JP S6444350 A JPS6444350 A JP S6444350A
- Authority
- JP
- Japan
- Prior art keywords
- mode
- control valve
- pressure control
- way
- continuously variable
- 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
Landscapes
- Control Of Transmission Device (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Transmission Devices (AREA)
Abstract
PURPOSE:To smoothen reversing operation in running directions by controlling a continuously variable transmission in such a way that the operation mode is shifted into a drive mode by way of a start mode after a hold mode is once carried out, during such a speed change manipulation that the running direction of a vehicle is reversed. CONSTITUTION:A belt drive type continuously variable transmission 2 is composed of a primary pressure control valve 34 as a speed change control valve, a constant pressure control valve 38, a line pressure control valve 44 and a clutch pressure control valve 52 in a hydraulic circuit, and the valves 34, 44, 52 are controlled by a control section 98 through solenoid valves 42, 50, 58, respectively. The clutch pressure control valve 52 is provided so as to control the clutch pressure of a hydraulic start clutch 62. In this arrangement, the control section 98 controls the transmission so that the operation mode is inhibited from being shifted into a drive mode by way of a start mode when such a speed change manipulation that the running direction of the vehicle is reversed is carried out, and after a hold mode is once carried out at a speed less than a predetermined vehicle speed, the operation mode is shifted into the drive mode by way of the start mode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199422A JPH0796378B2 (en) | 1987-08-10 | 1987-08-10 | Forward / backward control method for continuously variable transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199422A JPH0796378B2 (en) | 1987-08-10 | 1987-08-10 | Forward / backward control method for continuously variable transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6444350A true JPS6444350A (en) | 1989-02-16 |
JPH0796378B2 JPH0796378B2 (en) | 1995-10-18 |
Family
ID=16407544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62199422A Expired - Lifetime JPH0796378B2 (en) | 1987-08-10 | 1987-08-10 | Forward / backward control method for continuously variable transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0796378B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121430A (en) * | 1984-07-10 | 1986-01-30 | Daihatsu Motor Co Ltd | Hydraulic control device of speed change gear |
JPS62152932A (en) * | 1985-12-26 | 1987-07-07 | Fujitsu Ltd | Switch-back control system |
-
1987
- 1987-08-10 JP JP62199422A patent/JPH0796378B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121430A (en) * | 1984-07-10 | 1986-01-30 | Daihatsu Motor Co Ltd | Hydraulic control device of speed change gear |
JPS62152932A (en) * | 1985-12-26 | 1987-07-07 | Fujitsu Ltd | Switch-back control system |
Also Published As
Publication number | Publication date |
---|---|
JPH0796378B2 (en) | 1995-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
EXPY | Cancellation because of completion of term |