Vehicle air-conditioning device and train communication system
US10654494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2016 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jun 10, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00657
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle air-conditioning apparatus includes a refrigeration cycle that performs air-conditioning in a vehicle interior of a vehicle; a controller that includes a plurality of operation modes with different continuous operation times for a compressor, and that selects one operation mode from among the plurality of operation modes according to an air-conditioning load in the vehicle interior and executes the one operation mode, during travel operation of the vehicle; a storage unit; and a fault diagnosis unit. The fault diagnosis unit performs, during travel operation of the vehicle, fault diagnosis for the refrigeration cycle, after the high-load operation mode from among the plurality of operation modes, in which the continuous operation time is equal to or longer than a time that is set in advance is selected and executed by the controller at the timing stored in advance in the storage unit and while the refrigeration cycle is stable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.