Method of setting transmission shift points in real-time based upon an engine performance curve
US9726278B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Feb 10, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/0223
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for setting a shift point for shifting a transmission for a powered vehicle between a first gear ratio and a second gear ratio. The method includes determining input power data points based on real-time input torque data. The input torque data includes a maximum input torque. The method also includes calculating a gear step value based on the first gear ratio and second gear ratio. The method further includes determining a first power value and computing a second power value based on the gear step value. The first power value and second power value are compared to one another and adjustments are incrementally made in the first power value speed until the difference between first and second power values meets a threshold. The shift point is therefore based on the result of comparing the first power value and the second power value and the corresponding speed associated with the first power value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.