Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1985-07-30
1987-08-11
Staab, Lawrence
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74689, 74740, B60K 4116
Patent
active
046853588
ABSTRACT:
A hydraulic control apparatus for controlling a hydraulically-operated power transmitting system for an automotive vehicle, the power transmitting system including a continuously variable transmission and an auxiliary transmission coupled to the continuously variable transmission. The auxiliary transmission has a first and a second forward-drive position relating to a high and a low speed range, respectively, which high and low speed ranges are selected by an operator controlled shift lever. The hydraulic control apparatus comprises a shift valve controlled by an electric control signal so as to be placed selectively in one of a high-range position and a low-range position to place the auxiliary transmission in the first and second forward-drive positions, respectively. The control apparatus further comprise a lock device for holding the shift valve in the high-range position, irrespective of the electric control signal, while the high speed range is selected by the shift lever.
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Diehl Dwight G.
Staab Lawrence
Toyota Jidosha & Kabushiki Kaisha
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