JPS6444348A - Method of controlling oil pressure of continuously variable transmission - Google Patents
Method of controlling oil pressure of continuously variable transmissionInfo
- Publication number
- JPS6444348A JPS6444348A JP19942087A JP19942087A JPS6444348A JP S6444348 A JPS6444348 A JP S6444348A JP 19942087 A JP19942087 A JP 19942087A JP 19942087 A JP19942087 A JP 19942087A JP S6444348 A JPS6444348 A JP S6444348A
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- oil
- pressure control
- clutch
- pressure
- 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 Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Transmission Device (AREA)
Abstract
PURPOSE:To always maintain the clutch pressure or the like suitably by controlling a solenoid valve for a line pressure control valve or the like in accordance with the operating condition, and by controlling the drive frequency of a signal applied to the solenoid valve in accordance with the temperature of hydraulic oil. CONSTITUTION:A belt drive type continuously variable transmission 2 is composed of a primary pressure control valve 44 as a speed change control valve, a constant pressure control valve 48, a line pressure control valve 54 and a clutch pressure control valve 62 in an oil pressures circuit, and the valves 44, 54, 62 are controlled by a control section 70 through solenoid valves 42, 50, 58, respectively. The clutch pressure control valve 62 is provided so as to control the clutch pressure of an oil pressure clutch 74. In this arrangement, the control section 90 controls so that the drive frequency of a signal applied to the solenoid valves 52, 60, 68 is changed over in accordance with the temperature of hydraulic oil detected by an oil temperature sensor 92 provided in an oil pan 32, enabling decuring of appropriate oil pressure at all times, regardless of the viscosity of the oil.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199420A JP2631372B2 (en) | 1987-08-10 | 1987-08-10 | Hydraulic control method for continuously variable transmission |
US07/229,942 US4964317A (en) | 1987-08-10 | 1988-08-08 | Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof |
CA000574188A CA1321304C (en) | 1987-08-10 | 1988-08-09 | Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof |
US07/497,995 US4962678A (en) | 1987-08-10 | 1990-03-23 | Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof |
US07/560,050 US5042323A (en) | 1987-08-10 | 1990-07-30 | Hydraulic control method for continuously variable speed change gear mechanism for a vehicle and a drive control method for a pressure valve thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62199420A JP2631372B2 (en) | 1987-08-10 | 1987-08-10 | Hydraulic control method for continuously variable transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6444348A true JPS6444348A (en) | 1989-02-16 |
JP2631372B2 JP2631372B2 (en) | 1997-07-16 |
Family
ID=16407508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62199420A Expired - Lifetime JP2631372B2 (en) | 1987-08-10 | 1987-08-10 | Hydraulic control method for continuously variable transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2631372B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05118420A (en) * | 1991-03-22 | 1993-05-14 | Suzuki Motor Corp | Hydraulic control device continuously variable transmission |
WO2007143965A1 (en) * | 2006-06-12 | 2007-12-21 | Conti Temic Microelectronic Gmbh | Controlling or regulating an automatic or automated transmission |
CN106438761A (en) * | 2016-10-24 | 2017-02-22 | 广州汽车集团股份有限公司 | Method and device for determining temperature of wet dual clutch transmission |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3622689B2 (en) | 2001-04-24 | 2005-02-23 | トヨタ自動車株式会社 | Hydraulic oil temperature control device for power transmission |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5386980A (en) * | 1977-01-10 | 1978-07-31 | Unic Corp | Controlling method of actuator by means of electroomagnetic valve |
JPS624956A (en) * | 1985-06-29 | 1987-01-10 | Fuji Heavy Ind Ltd | Hydraulic controller for continuously variable transmission |
-
1987
- 1987-08-10 JP JP62199420A patent/JP2631372B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5386980A (en) * | 1977-01-10 | 1978-07-31 | Unic Corp | Controlling method of actuator by means of electroomagnetic valve |
JPS624956A (en) * | 1985-06-29 | 1987-01-10 | Fuji Heavy Ind Ltd | Hydraulic controller for continuously variable transmission |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05118420A (en) * | 1991-03-22 | 1993-05-14 | Suzuki Motor Corp | Hydraulic control device continuously variable transmission |
WO2007143965A1 (en) * | 2006-06-12 | 2007-12-21 | Conti Temic Microelectronic Gmbh | Controlling or regulating an automatic or automated transmission |
CN106438761A (en) * | 2016-10-24 | 2017-02-22 | 广州汽车集团股份有限公司 | Method and device for determining temperature of wet dual clutch transmission |
CN106438761B (en) * | 2016-10-24 | 2019-07-09 | 广州汽车集团股份有限公司 | Method and apparatus for determining wet dual clutch transmission temperature |
Also Published As
Publication number | Publication date |
---|---|
JP2631372B2 (en) | 1997-07-16 |
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Legal Events
Date | Code | Title | Description |
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S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
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S531 | Written request for registration of change of domicile |
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R350 | Written notification of registration of transfer |
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EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080425 Year of fee payment: 11 |