Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1987-03-11
1989-04-04
Diehl, Dwight G.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74733, 192 33, B60K 4106
Patent
active
048174734
ABSTRACT:
An electronic control valve system for an automatic, multiple-speed motor vehicle transmission having a torque converter with a lockup clutch and change-speed gearing adapted for four forward ratios and one reverse ratio, a converter lockup clutch control valve in conjunction with a lockup clutch shift valve adapted to control the lockup clutch, and electronic microprocessor control means for establishing ratio changes between the fourth ratio and the third ratio in accordance with separate upshift schedules and separate downshift schedules stored in the memory registers of the microprocessor, the separate registers being addressed in accordance with whether the lockup clutch is applied or released.
REFERENCES:
patent: 4432255 (1984-02-01), Borman et al.
patent: 4457410 (1984-07-01), Suga et al.
patent: 4495576 (1985-01-01), Ito
patent: 4509124 (1985-04-01), Suzuki et al.
patent: 4535652 (1985-08-01), Nishikawa et al.
patent: 4559850 (1985-12-01), Sakakibara
patent: 4638690 (1987-01-01), Hattori et al.
patent: 4694709 (1987-09-01), Kikuchi et al.
Baltusis Paul A.
Wolodkiewicz Stephen R.
Diehl Dwight G.
Ford Motor Company
Harrington Donald J.
Zerschling Keith L.
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