Clutch operation control system for fluid torque converter of vehicular transmission

Patent · Tue Oct 28 04:00:00 EST 1986

OSTI ID:6999337

Maezono, M; Ishikawa, K

A clutch operation control system is described for a fluid torque converter, having an input side and an output side, of a vehicular transmission in which a clutch is provided for mechanically connecting the input side and output side of the torque converter. The clutch has its clutch plate supplied at its one side with oil pressure in a control chamber for releasing the clutch and at its other side with the torque converter oil pressure in the fluid torque converter. An oil line leading to the control chamber is connected at a vehicular speed equal to or higher than a predetermined level to an oil drain port by means of a control valve responsing to a vehicular speed so that the clutch may be operated with an engaging force determined by the torque converter pressure and by the drainage from the control chamber. The clutch plate is formed with an orifice for providing communication between the two sides of the clutch plate. The control valve is formed with a throttle portion for throttling the communication passage between the oil line and the drain port in a relatively low vehicular speed range equal to or higher than the predetermined level.

• Assignee: Honda Giken Kogyo Kabushiki Kaisha, Tokyo
• Patent Number(s): US 4619350
• OSTI ID: 6999337
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
CONTROL
CONTROL SYSTEMS
DRAINAGE
LUBRICANTS
LUBRICATING OILS
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PRESSURE CONTROL
TORQUE
VEHICLES