Control system for an automatic transmission

Details Control system for an automatic transmission Control system for an automatic transmission

1988-03-02

1989-05-16

Wright, Dirk

Machine element or mechanism

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

Preselected indexed position

74878, B60K 4118

Patent

active

048298522

ABSTRACT:
A control system for an automatic transmission having a first gear hold range, and a second gear hold range. A detector is provided for detecting a selected gear hold range and for producing a gear hold signal, and a sensing device is provided for producing an engine speed signal dependent on engine speed. When the engine speed signal exceeds a predetermined speed under the selection of one of gear hold ranges, the gear hold range is released and transmission is upshifted.

REFERENCES:
patent: 4079638 (1978-03-01), Sibend
patent: 4463427 (1984-07-01), Bonnetain et al.
patent: 4539868 (1985-09-01), Habn
patent: 4631984 (1986-12-01), Jones

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