Automatic transmissions
Abstract
Abstract THE PRESENT INVENTION RELATES TO A SYSTEM INCLUDING COMPUTER ACTIVATED SIGNALS FOR CONTROLLING THE ACTIVATION IN A VEHICLE OF AN AUTOMATIC TRANSMISSION INCORPORATING A HYDRAULIC TORQUE CONVERTER, A GEAR TRANSMISSION UNIT AND FRICTION ENGAGING MEANS FOR SELECTING THE APPROPRIATE GEAR OF THE GEAR TRANSMISSION UNIT WHICH IS TO BE ACTIVATED BY FLUID UNDER PRESSURE, CHARACTERIZED BY THE UTILIZATION OF A SLIP RATIO COMPUTING MEANS FOR GENERATING AN ELECTRIC OUTPUT SIGNAL WHEN THE RATIO OF REVOLVING VELOCITY OF THE OUTPUT SHAFT OF THE VEHICLE ENGINE (INPUT SHAFT OF THE HYDRAULIC TORQUE CONVERTER) TO THE REVOLVOMG VELOCITY OF THE OUTPUT SHAFT OF THE TORQUE CONVERTER OR THE POWER DRIVEN SHAFT OF THE GEAR UNIT REACHES OR IS WITHIN A PREDETERMINED VALUE.
Inventors
- 👤 Takeaki Shirai
- 👤 Shigeru Sakakibara
- 👤 Masaaki Noguchi
- 👤 Masaharu Sumiyoshi
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |