Ground contact load estimation device, vehicle control device, and ground contact load estimation method
US12384384B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2022 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Sep 28, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2520/125
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention achieves a technology that enables estimating a ground contact load in a vehicle with sufficiently high accuracy. A ground contact load estimation device according to the present invention is configured to estimate a ground contact load of a vehicle by: acquiring a wheel angular velocity, a steady load, and an inertial load of the vehicle; calculating a first gain using the steady load and the inertial load; estimating a road surface load using the first gain, a prescribed vehicle specification, and a second gain representing a hysteresis characteristic of a tire installed on the vehicle and referencing said road surface load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.