Prevention of slippage in belt-type continuously variable...

Details Prevention of slippage in belt-type continuously variable... Prevention of slippage in belt-type continuously variable...

2005-05-24

2005-05-24

Pang, Roger (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

C477S107000

Reexamination Certificate

active

06896639

ABSTRACT:
A vehicle engine (70) is connected with a belt-type continuously variable transmission (1) via a clutch (32). The transmission (1) transmits torque via a belt (43) between a pair of pulleys (41, 42), and varies the transmission torque according to a supply of oil pressure. The clutch (32) engages by means of oil pressure supplied as a shift lever is changed over from a neutral range to a drive range. An oil pressure supplying device (10, 44, 45, 46) supplies the oil pressure required to transmit torque between the belt (43) and the pulleys (41, 42), and the oil pressure for engaging the clutch (32). Slippage between the belt (43) and the pulleys (41, 42) is prevented during engagement of the clutch (32) by restricting the output torque of the engine (70) over a predetermined period of time.

REFERENCES:
patent: 5042324 (1991-08-01), Suzuki
patent: 5820514 (1998-10-01), Adachi
patent: 6168546 (2001-01-01), Loffler et al.
patent: 6454675 (2002-09-01), Asayama et al.
patent: 6684142 (2004-01-01), Janssen et al.
patent: 20010023216 (2001-09-01), Bolz et al.

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