Air conditioning device for vehicle
US10160289B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 26, 2013 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Jun 20, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2700/197
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A air conditioning control device is configured to estimate whether or not the temperature of refrigerant on a high-pressure side in a heat pump device is equal to or lower than a predetermined low temperature and to switch a flow path switching device to an air-heating start-up mode when it is estimated that the temperature of refrigerant on the high-pressure side in the heat pump device is equal to or lower than the predetermined low temperature and switch the flow path switching device to a normal air-heating mode when it is estimated that the temperature of refrigerant on the high-pressure side in the heat pump device is higher than the predetermined low temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.