Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1986-12-15
1988-11-01
Braun, Leslie A.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
B60K 4106
Patent
active
047810807
ABSTRACT:
A hydraulic pressure control device in an automatic transmission, provided thereon with a mechanism capable of regulating oil pressure in response to a command value from a calculating device, including: a device for detecting oil pressure in the hydraulic pressure control device; a device for comparing the oil pressure thus detected with a target value; and a device for correcting the command value from the calculating device in accordance with the result of the comparison, wherein the oil pressure actually generated in the hydraulic pressure control device is directly detected, and the command value to control the oil pressure is corrected while the oil pressure thus detected is compared with an ideal value (a target value). With this arrangement, highly accurate oil pressure control can be continuously carried out, irrespective of variations peculiar to a mechanical system and variations in use conditions.
REFERENCES:
patent: 3748926 (1973-07-01), Mohri et al.
patent: 4106367 (1978-08-01), Bouvet
patent: 4283970 (1981-08-01), Vukovich
patent: 4388845 (1983-06-01), Kishi et al.
patent: 4502354 (1985-03-01), Suzuki et al.
Braun Leslie A.
Diehl Dwight G.
Toyota Jidosha & Kabushiki Kaisha
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