Continuously variable transmission vehicle

Details Continuously variable transmission vehicle Continuously variable transmission vehicle

1996-03-15

1997-01-07

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

474 18, 475210, F16H 918, F16H 6100

Patent

active

055911005

ABSTRACT:
In a vehicle travelling by use of a travelling drive source such as an engine or a motor, the gear shift ratio of a continuously variable transmission B can be changed by increasing or decreasing the width of a groove in a driving pulley 19 of the continuously variable transmission B by a gear shift ratio changing device 61 using a motor 62 as a drive source. The motor 62 is controlled on the basis of output signals from a throttle opening degree sensor, an engine rotational speed sensor and a vehicle speed sensor, thereby enabling an energy-saving travelling suited to an operational condition of the travelling drive source or a travelling condition of the vehicle. The gear shift ratio changing device 61 is supported in a floating manner within a casing 3, 8 for the continuously variable transmission B. This achieves not only a reduction in size of a power unit, but also ensures that any operational sound of the motor 62 is prevented from leaking out, and any vibration from the engine or a wheel cannot be transmitted to the gear shift ratio changing device 61.

REFERENCES:
patent: 3643519 (1972-02-01), Ebersold
patent: 4036068 (1977-07-01), Gilbert
patent: 4229989 (1980-10-01), Tamura
patent: 4735113 (1988-04-01), Yamamuro et al.
patent: 4964841 (1990-10-01), Takayama et al.
patent: 5073859 (1991-12-01), Suzuki
patent: 5334103 (1994-08-01), Gryspeerdt
Donald Fink and Donald Christiansen, Electronics Engineers' Handbook, 1989, p. 7--7.
European Search Report.
English Language Abstracts of JP 60-192156, 2017268 and 58017248.

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