Interrelated power delivery controls – including engine control – Clutch control – Condition responsive control
Patent
1997-02-27
1999-03-02
Marmor, Charles A.
Interrelated power delivery controls, including engine control
Clutch control
Condition responsive control
477 97, 192103F, F16F 1522, B60K 4122
Patent
active
058763066
ABSTRACT:
In the control system of an automatic transmission for a motor vehicle wherein power delivered from an engine is transmitted to a gear shift mechanism through a damper and then transmitted from the gear shift mechanism to driving wheels through a starting clutch, when an engine speed detected by engine speed sensor (in FIG. 1) is not higher than a predetermined value in the engine starting operation, an engageable element (in FIG. 1) constituting the gear shift mechanism is released, and when the engine speed is higher than the predetermined value, the engageable element is brought into engagement, thereby to alter the resonance point of a rotary system including the damper and to prevent the damper from resonating, so that a vibration of large amplitude does not occur in the engine starting operation.
REFERENCES:
patent: 3926074 (1975-12-01), Sugahara
patent: 4688665 (1987-08-01), Rowen
patent: 5695032 (1997-12-01), Murata et al.
patent: 5725456 (1998-03-01), Fischer et al.
Patent Abstracts of Japan, vol. 016, No. 464, Sep. 28, 1992, JP-A-04 165149, Jun. 10, 1992.
Marmor Charles A.
Parekh Ankur
Toyota Jidosha & Kabushiki Kaisha
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