Control system for stepless belt transmissions

Details Control system for stepless belt transmissions Control system for stepless belt transmissions

1988-12-08

1991-04-09

Diehl, Dwight

Machine element or mechanism

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

Preselected indexed position

74867, B60K 4112

Patent

active

050054422

ABSTRACT:
A stepless transmission in which travel in two different shift regions is made possible by a main transmission unit constituting a stepless transmission mechanism and an auxiliary transmission unit coupled to the stepless transmission mechanism, and in which torque ratio is capable of being varied steplessly in response to signals indicative of detected vehicle traveling conditions. The transmission is equipped with a function which improves the feeling of a speed reduction, makes possible a smooth start and provides excellent accelerability, a function which assures that the vehicle will start moving forward reliably, a function which enhances brake durability, and a function enhances safety in the event of motor malfunction.

REFERENCES:
patent: 4433594 (1984-02-01), Smirl
patent: 4603602 (1986-08-01), Tanaka et al.
patent: 4608885 (1986-09-01), Koivunen
patent: 4672863 (1987-06-01), Itoh et al.
patent: 4735598 (1988-04-01), Moroto et al.
patent: 4747327 (1988-03-01), Itoh et al.
patent: 4793217 (1988-12-01), Morisawa et al.
patent: 4796489 (1989-01-01), Nagamatsu et al.
patent: 4803899 (1989-02-01), Kumura
patent: 4823267 (1989-04-01), Kumura

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