Systems and methods for shielding a hand sensor system in a steering wheel
US11299191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Feb 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960765
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and methods of shielding a hand sensor system in a steering wheel are disclosed herein. An exemplary hand sensor system includes a sensor mat and a heater mat that is disposed between the sensor mat and a frame of the steering wheel. A power source selectively provides a heating current to the heater mat to provide heat to the steering wheel and a shielding voltage signal to the heater mat to provide electrical shielding for the sensor mat when heating is not needed or when sensing takes priority over heating. Alternatively, the system may include a shield mat that is separate from the heater mat and is disposed between the sensor mat and the heater mat. In addition, to isolate the signal carried by individual sensor return wires, a metallic or insulating covering or conduit may be provided around the wires or portions thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.