Neural network-based virtual sensor for automatic transmission slip
US6275761A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 2000 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Aug 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/905
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for computer-based control of the timing and level of gear shifts in a multi-speed automatic transmission operated in combination with an internal combustion engine and interposed fluid torque converter. The computer containing power control module signals gear shifts in response to its repeated cyclic processing of engine and transmission operation parameters including torque converter slippage. Here, such slippage is estimated using a neural network with suitable such parameters as input data. In preferred modes of operation, different neural networks are available for selection and use by the computer in different modes of engine-transmission operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.