Hydraulic controller for automatic transmission having automatic

Details Hydraulic controller for automatic transmission having automatic Hydraulic controller for automatic transmission having automatic

1994-06-03

1996-08-13

Marmor, Charles A.

Machine element or mechanism

Gearing

Interchangeably locked

743375, 477906, 13762523, 1376364, 1375961, F16H 6118, F16H 6308, F16K 31524, F16K 3154

Patent

active

055445381

ABSTRACT:
A vehicular automatic transmission (AT) hydraulic controller has an integrated valve. The integrated valve has a cylindrical cam shaft including convex and concave parts on the outer periphery thereof, and the integrated valve is connected to a motor for automatic control and a connecting part which is interlocked with an external gearshift operated by a driver. Hydraulic control of the integrated valve can be performed in two different ways, i.e., automatic control and manual control, and even if automatic control malfunctions due to an error, manual control can maintain the control of the AT and avoid any inconvenience. The structure of this integrated valve provides a high degree of design freedom and can implement a wide variety of AT functions. Accordingly, a light, compact and reliable AT equipped with both an automatic control mechanism and a manual control mechanism can be provided.

REFERENCES:
patent: 2349410 (1944-05-01), de Normanville
patent: 2433099 (1947-12-01), de Normanville
patent: 4226142 (1980-10-01), Rembold et al.
patent: 5179867 (1993-01-01), Sakakibara et al.
patent: 5249476 (1993-10-01), Zaiser et al.

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