Vehicle cabin warm-up
US8600615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | May 31, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of heating a cabin in a hybrid vehicle having an internal combustion engine employing a coolant to remove engine heat, and a heating ventilation and air conditioning (HVAC) system using the coolant to heat the cabin is disclosed. The method includes detecting a request to achieve a predetermined temperature inside the cabin. The method also includes selecting a first baseline mode of engine operation to supply thermal energy to the coolant, and selecting a second mode of engine operation to supply additional thermal energy to the coolant if the predetermined temperature has not been achieved via the first mode of operation. The method additionally includes selecting a third mode of engine operation if the predetermined temperature has not been achieved via the second mode of operation. The predetermined temperature may also be maintained by supplying thermal energy to the coolant after the predetermined temperature has been achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.