Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1982-12-20
1985-04-30
Krizmanich, George H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74867, 74869, B60K 4118, B60K 4116, B60K 4112
Patent
active
045136394
ABSTRACT:
In an automatic transmission for a vehicle comprising at least a first friction engaging unit engaged for attaining a low forward speed and a second friction engaging unit engaged together with the first friction engaging unit for attaining a high forward speed, the second friction engaging unit only being released for carrying out a shift from the high forward speed to the low forward speed, an apparatus for preventing creeping of the vehicle comprising an accelerator pedal switch turned on when the accelerator pedal is released, a rotation speed sensor sensing the halted state of the vehicle, valves and an electronic control unit provided for engaging the first and second friction engaging units in response to the output signals from the switch and sensor thereby attaining the high forward speed, and valves and an orifice provided for reducing the pressure of hydraulic fluid supplied to the second friction engaging unit to a level lower than that of hydraulic fluid supplied to the first friction engaging unit, in response to the output signals from the switch and sensor.
REFERENCES:
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patent: 2953940 (1960-09-01), Slemmons
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patent: 3733932 (1973-05-01), Uozumi et al.
patent: 3859873 (1975-01-01), Miyauchi et al.
patent: 3890856 (1975-06-01), Miyauchi et al.
Krizmanich George H.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
Wright Dirk
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