Systems and methods to estimate the gear positions of manual transmissions
US10900566B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/366
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Gear position estimation techniques for a manual transmission of a vehicle include estimating a gear ratio of the manual transmission based on measured speeds of the vehicle and its torque generating system and when the estimated gear ratio is not within a threshold amount from any known gear ratios of the manual transmission, detecting at least two gear shifts of the manual transmission and determining a set of possible axle/tire ratios each indicative of a ratio of an axle ratio of the vehicle to a tire circumference of the vehicle after each gear shift, wherein each set includes values based on the measured torque generating system and vehicle speeds and each of the known gear ratios of the manual transmission, selecting and utilizing one of the possible axle/tire ratios that is common across all of the sets of possible axle/tire ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.