System and method for recovering refrigerant from a heat exchanger of a thermal system for an electric vehicle
US11685234B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Sep 7, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/3285
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system includes a refrigerant recovery module and at least one of a valve control module and a compressor control module. The refrigerant recovery module is configured to generate a refrigerant recovery signal to initiate a recovery of refrigerant from a first heat exchanger of a thermal system for an electric vehicle, and to stop the refrigerant recovery based on a temperature of refrigerant circulating through the first heat exchanger. The valve control module is configured to open a first valve to allow refrigerant to flow through the first heat exchanger in response to the refrigerant recovery signal. The compressor control module is configured to increase a speed of a compressor disposed upstream from the first heat exchanger in response to the refrigerant recovery signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.