HVAC system for electric vehicle with driving range extension
US9809083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | May 15, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00949
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A heat pump cooling and heating system for an electric vehicle includes a range extending PCM heat exchanger (24), with a single acting phase change material with a melt temperature between the two comfort temperatures associated with cooling and heating, respectively. In a charging mode, as the vehicle batteries are charged, the same exterior current source runs the compressor (10), charging the PCM exchanger (24) with heat or “cold.” During an initial range extending mode, the PCM exchanger/reservoir (24) serves as the heat source or heat sink. The PCM material does not directly heat or cool the air, as is conventional, allowing a single reservoir material to be used in both heating and cooling modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.