Control for continuously variable transmission

Details Control for continuously variable transmission Control for continuously variable transmission

1987-02-12

1989-08-01

Lall, Parshotam S.

Boots, shoes, and leggings

74866, 474 12, 474 18, 474 28, 364165, G06F 1520, B60K 4112

Patent

active

048538582

ABSTRACT:
A control for a continuously variable transmission provides an improved transient performance by restraining proportional and integral terms when an error exceeds a predetermined value range. This is effective in suppressing an overshoot in driver pulley revolution speed in approaching to its target speed. This control is provided with a safeguard against break down of a vehicle speed sensor such that the above mentioned restrain is removed when the vehicle speed indicative signal should drop to zero during running of the vehicle.

REFERENCES:
patent: 4576265 (1986-03-01), Kumura et al.
patent: 4579021 (1986-04-01), Yamamuro et al.
patent: 4597308 (1986-07-01), Tanaka et al.
patent: 4653004 (1987-03-01), Osanai et al.
patent: 4653005 (1987-03-01), Osanai et al.
patent: 4670843 (1987-06-01), Matsumura et al.
patent: 4702128 (1987-10-01), Oshiage
patent: 4718012 (1988-01-01), Oshiage
patent: 4729103 (1988-03-01), Oshiage et al.

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