Tongue weight determination
US9956965B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Nov 1, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2530/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In various example embodiments, a system and method for determining a tongue weight of a vehicle with a trailer and its load is disclosed. A method includes: providing predetermined calibration settings relating force to engine speed for a vehicle travelling at various speeds, altering accelerometer data based on filtered vehicle pitch and roll data, determining that one or more vehicle performance parameters fall within a threshold range, storing a plurality of data pairs that include longitudinal acceleration and drive force, and determining a slope of a line that linearly approximates the plurality of data pairs, the slope indicating a total weight, the total weight comprising a weight of the vehicle and a weight being hauled by the vehicle, determining tongue weight from vehicle weight, total weight and delta pitch, and transmitting the tongue weight to a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.