Method of estimating temperature and device for the effecting same
US6854881B2 · kind B2 · utility
22Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 2001 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Jun 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/903
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In accordance with the presence or absence of heat, a transistor shows a relatively rapid change, while a cooling water CLW shows a relatively gentle change. The temperatures of both members settle down to approximately equal temperatures when no heat is generated in the transistor. At this time, the temperature of one of the transistor or the cooling water and the amount of energization of the transistor are used to estimate the temperature of the other member. This method is applied to other temperature estimations, such as estimation of the temperature between a stator coil and a stator iron core of a motor etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.