Method and system to manage vehicle thermal conditions
US10486495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jun 16, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/00957
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle climate control system for an electrified vehicle including a thermal circuit and a controller is provided. The thermal circuit includes a heat pump and a positive temperature coefficient (PTC) heater. The controller is programmed to direct operation of the heat pump and the PTC heater responsive to receipt of a request for simultaneous cooling and heating based on a heat source mode table and detection of a system configuration in which flow is permitted through one of a fixed orifice expansion device (FOT), a thermal expansion valve (TXV), and an electronic expansion valve (EXV). The heat source mode table may call for the heat pump to operate in a cool mode and the PTC heater to operate in a heat mode when heater core coolant is identified as warm and ambient temperature is above a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.