Speed ratio control for a steplessly variable transmission

Details Speed ratio control for a steplessly variable transmission Speed ratio control for a steplessly variable transmission

1984-10-29

1987-05-19

Braun, Leslie

Machine element or mechanism

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

Preselected indexed position

474 12, 474 28, B60K 4112, F16H 1106

Patent

active

046657754

ABSTRACT:
A steplessly variable transmission of a belt-pulley type of which speed ratio is controlled in accordance with the vehicle speed and the engine load. A control system is provided for controlling the speed ratio, when the engine throttle valve is fully closed for deceleration, in accordance with the vehicle speed so that the speed ratio is decreased in response to a decrease in the vehicle speed. The control system provides an engine brake effect in deceleration which changes in accordance with a change in the vehicle speed.

REFERENCES:
patent: 4458560 (1984-07-01), Frank et al.
patent: 4459879 (1984-07-01), Miki et al.
patent: 4536171 (1985-08-01), Tanaka et al.

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