Self-calibrating load sensor systems and control logic for active aerodynamic devices of motor vehicles
US10315710B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2017 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Nov 10, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Disclosed are self-calibrating load sensor systems for active aerodynamics devices, methods for making or using such load sensor systems, and motor vehicles equipped with a self-calibrating load sensor system to govern operation of the vehicle's active aero device(s). An active aero sensing system includes a load sensor that mounts to the vehicle body, and detects downforces on the vehicle. A memory device stores mapped vehicle downforce data calibrated to the motor vehicle. A vehicle controller receives downforce signals generated by the load sensor, and calculates an average downforce value from these signals. The controller determines if the average downforce differs from a calibrated downforce value retrieved from the memory device. If so, the controller responsively applies an offset value to subsequent downforce signals received from the load sensor, and dynamically controls operation of the active aero device based, at least in part, on these signals modified by the offset value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.