Power shifter control system
US5979258A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Mar 13, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1926
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power shifter control system for transmitting shifting operation of a change lever (1) via shift cable (5) to a power shifter (2), which incudes a motor (3) for amplifying the transmitted shifting operation force and providing amplified shifting operation force to a transmission. The power shifter control system comprises a displacement sensor (6) for detecting displacement of the power shifter (2), and a controller (4) for controlling the driving of the motor (3) according to an output signal provided from the displacement sensor (6). The controller (4) includes a shifting speed detector (41) for calculating shifting speed according to an output signal provided from the displacement sensor (6), and a motor drive characteristic computer (42) for controlling the shifting force to be constant by increasing the rate of increase of driving force of the motor (3) with increasing shifting speed calculated in the shifting speed calculator (41). Shifting force can always be held constant irrespective of changes in the speed of the shifting operation of the change lever (1). A shift operation controller (46) prevents erroneous shifting operation. A shift suitability controller (53) is pro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.