Title:
METHOD AND SYSTEM FOR CONTROLLING RATE OF CHANGE OF RATIO IN A CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO2004083870
Kind Code:
A3
Abstract:
Systems and methods for efficiently and effectively controlling the rate of change of ratio, not simply the ratio, in a CVT. By controlling the rate of change of ratio, the acceleration or deceleration of a vehicle can be controlled in an efficient manner. Furthermore, the rate of change of ratio can be controlled by controlling the clamping pressure of the pulleys and/or differential pressure between the pulleys with minimal slip by using a servo control mechanism adapted for control by a system controller based on equilibrium mapping and other control parameters.
More Like This:
| JP5906205 | Separation type series / parallel mixture 2 power-driven system |
| JP7371425 | Vehicle drive system |
| JP2023131982 | CONTROL DEVICE OF HYBRID VEHICLE |
Inventors:
FRANK ANDREW A (US)
DREUMONT THOMAS (US)
DREUMONT THOMAS (US)
Application Number:
PCT/US2004/008572
Publication Date:
August 25, 2005
Filing Date:
March 19, 2004
Export Citation:
Assignee:
UNIV CALIFORNIA (US)
FRANK ANDREW A (US)
DREUMONT THOMAS (US)
FRANK ANDREW A (US)
DREUMONT THOMAS (US)
International Classes:
B60K6/36; B60K6/46; B60K6/48; B60K6/543; B60W10/06; B60W10/08; B60W10/10; B60W20/00; F16H61/662; (IPC1-7): B60K41/02; G06F17/00; G06F19/00; G06F7/00
Domestic Patent References:
| WO2001020198A1 | 2001-03-22 |
Foreign References:
| US6243638B1 | 2001-06-05 | |||
| US4565110A | 1986-01-21 | |||
| US6054844A | 2000-04-25 | |||
| US4584907A | 1986-04-29 | |||
| US6459978B2 | 2002-10-01 |
Other References:
See also references of EP 1606134A4
Download PDF: