Control system for a infinitely variable transmission

Details Control system for a infinitely variable transmission Control system for a infinitely variable transmission

1986-04-02

1988-11-15

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74877, B60K 4112

Patent

active

047840218

ABSTRACT:
A control system for an infinitely variable transmission has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The deceleration rate of the motor vehicle contianing the system is detected to produce a deceleration signal. By controlling the oil pressure supplied to the transmission ratio control valve in accordance with engine operating conditions and the deceleration signal, the spool is shifted such that downshifting speed is increased with increasing deceleration.

REFERENCES:
patent: 4475416 (1984-10-01), Underwood
patent: 4543077 (1985-09-01), Yamamoro et al.
patent: 4561327 (1985-12-01), Niwa et al.
patent: 4584907 (1986-04-01), Niwa et al.
patent: 4610183 (1986-09-01), Nobumoto et al.
patent: 4663991 (1987-05-01), Nakamura et al.

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