CONTROL DEVICE FOR CONTINUOUSLY VARIABLE TRANSMISSION
1 Assignment
0 Petitions
Accused Products
Abstract
A control device for a continuously variable transmission includes: a line pressure generating means configured to generate a line pressure; a pilot valve configured to supply a pilot pressure regulated so as not to exceed a first predetermined pressure when the line pressure exceeds the first predetermined pressure; a control means configured to control solenoid valves by the pilot pressure, and thereby to generate belt clamping forces; an oil vibration sensing means configured to sense an oil vibration; and a line pressure increase means configured to increase the line pressure to be greater than the first predetermined pressure when the oil vibration sensing means senses the oil vibration.
5 Citations
16 Claims
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1-8. -8. (canceled)
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9. A control device for a continuously variable transmission which includes a belt wound around a primary pulley and a secondary pulley, and which is shifted by controlling belt clamping forces of the primary pulley and the secondary pulley, the control device comprising:
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a line pressure generating section configured to generate a line pressure; a pilot valve configured to supply a pilot pressure regulated so as not to exceed a first predetermined pressure when the line pressure exceeds the first predetermined pressure; a control section configured to generate the belt clamping pressure from the line pressure supplied as a source pressure of the belt clamping forces by controlling solenoid valves by the pilot pressure; an oil vibration sensing section configured to sense an oil vibration; and a line pressure increase section configured to increase the line pressure to be greater than the first predetermined pressure when the oil vibration sensing means section senses the oil vibration in a state where the line pressure is lower than the first predetermined pressure. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification