Input torque control system of belt-type continuously...

Details Input torque control system of belt-type continuously... Input torque control system of belt-type continuously...

2007-06-12

2007-06-12

Marmor, Charles A. (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

C701S051000

Reexamination Certificate

active

11092044

ABSTRACT:
An input torque control system is provided with a primary pulley, a secondary pulley, a V belt wound between these pulleys, a step motor to change a pressure difference between the primary pulley pressure and the secondary pulley pressure to change a gear ratio of the transmission, a memory unit to store pulley information immediately before a vehicle stop, and a torque restricting section. When an initialization operation of the step motor is started without pulley information stored in the memory unit, an output torque of the engine is restricted, and the restriction is removed after the initialization operation is finished.

REFERENCES:
patent: 7006908 (2006-02-01), Kang et al.
patent: 7029410 (2006-04-01), Sawada et al.
patent: 7065441 (2006-06-01), Yamamoto et al.
patent: 2004/0133318 (2004-07-01), Kang et al.
patent: 2004/0171444 (2004-09-01), Yamamoto et al.
patent: 2004/0209719 (2004-10-01), Ochiai et al.
patent: 2005/0192153 (2005-09-01), Jozaki et al.
Specification and Claims of related co-pending U.S. Appl. No. 11/092,037.
Specification and Claims of related co-pending U.S. Appl. No. 11/092,537.

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