JPS6440759A - Hydraulic speed changer for vehicle - Google Patents
Hydraulic speed changer for vehicleInfo
- Publication number
- JPS6440759A JPS6440759A JP63171160A JP17116088A JPS6440759A JP S6440759 A JPS6440759 A JP S6440759A JP 63171160 A JP63171160 A JP 63171160A JP 17116088 A JP17116088 A JP 17116088A JP S6440759 A JPS6440759 A JP S6440759A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- motor
- pump
- vehicle
- oil
- 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
Links
Landscapes
- Control Of Transmission Device (AREA)
Abstract
PURPOSE:To reduce the energy loss in a hydraulic speed change by setting the rotating speed of an electric motor at rest or a low level in the neutral center of the range position or parking position of the hydraulic speed changer. CONSTITUTION:In starting, a manual valve 19 is placed certainly in (N) or (P) position, and, as a signal 35 comes in, a speed control means 31 rotates a motor 24 at the first speed of a low speed so as to drive a pump 16 slightly, so that oil is sent to a torque converter 2 and the inside part thereof is filled with the oil. At this time, the rotating speed of the motor 24 is extremely low and the driving horse power is restrained at the minimum. Following this, when the manual valve 19 is shifted to a position 1 for starting, the pumping pressure of the oil pump 16 is sent to a first clutch (C1) via a servo-piston 22. When a pedal 38 is stepped, the motor 24 is driven at the second and third speed in order that the discharging pressure of the pump 16 is obtained sufficiently and the pump discharging pressure is made suitably for keeping the clutch in the enough coupling force and then the vehicle is started. In this manner, the speed of the motor 24 is controlled in accordance with the transmission torque or the running state of the vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63171160A JPS6440759A (en) | 1988-07-09 | 1988-07-09 | Hydraulic speed changer for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63171160A JPS6440759A (en) | 1988-07-09 | 1988-07-09 | Hydraulic speed changer for vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6440759A true JPS6440759A (en) | 1989-02-13 |
Family
ID=15918102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63171160A Pending JPS6440759A (en) | 1988-07-09 | 1988-07-09 | Hydraulic speed changer for vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6440759A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001021985A1 (en) * | 1999-09-24 | 2001-03-29 | Hitachi, Ltd. | Device and method for controlling electro-hydraulic pump for automatic transmission |
JP2002286128A (en) * | 2001-03-27 | 2002-10-03 | Nippon Soken Inc | Shift range changing control device for automatic transmission |
US8517890B2 (en) | 2007-04-20 | 2013-08-27 | Toyota Jidosha Kabushiki Kaisha | Drive control device for hybrid vehicle |
CN103790898A (en) * | 2014-02-26 | 2014-05-14 | 安徽合力股份有限公司 | Cleaning and purifying device used for hydrodynamic transmission |
JP2016102538A (en) * | 2014-11-28 | 2016-06-02 | 株式会社デンソー | Oil pressure supply device of vehicle |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5125543A (en) * | 1974-08-28 | 1976-03-02 | Kogyo Gijutsuin | FUENOORUKEIGOMUROKABOSHIZAI |
JPS5261669A (en) * | 1975-11-15 | 1977-05-21 | Toyota Motor Corp | Hydraulic pressure feeding device for fluid type automatic transmissio n |
-
1988
- 1988-07-09 JP JP63171160A patent/JPS6440759A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5125543A (en) * | 1974-08-28 | 1976-03-02 | Kogyo Gijutsuin | FUENOORUKEIGOMUROKABOSHIZAI |
JPS5261669A (en) * | 1975-11-15 | 1977-05-21 | Toyota Motor Corp | Hydraulic pressure feeding device for fluid type automatic transmissio n |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001021985A1 (en) * | 1999-09-24 | 2001-03-29 | Hitachi, Ltd. | Device and method for controlling electro-hydraulic pump for automatic transmission |
JP2002286128A (en) * | 2001-03-27 | 2002-10-03 | Nippon Soken Inc | Shift range changing control device for automatic transmission |
US8517890B2 (en) | 2007-04-20 | 2013-08-27 | Toyota Jidosha Kabushiki Kaisha | Drive control device for hybrid vehicle |
CN103790898A (en) * | 2014-02-26 | 2014-05-14 | 安徽合力股份有限公司 | Cleaning and purifying device used for hydrodynamic transmission |
JP2016102538A (en) * | 2014-11-28 | 2016-06-02 | 株式会社デンソー | Oil pressure supply device of vehicle |
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