Sensor system for measuring battery internal state
US9970993B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2017 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Feb 16, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/907
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for sensing internal states of vehicle batteries are described. From this internal state information, various physical characteristics of the battery can be measured, calculated or inferred. A vehicle can include an electric motor, a battery to store electrical energy for the electric motor, and a sensor connected to the battery to sense a battery state, to receive an input signal, and to wirelessly transmit an output signal indicating the battery state. The sensor may be passive and built into the structure of the battery. The sensor can be a surface wave acoustic sensor with a magnetic field sensor, which can be a magnetoimpedance sensing device and a temperature sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.