Un-partitioned HVAC module control for multi-zone and high performance operation
US10286748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Sep 3, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/002
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method controls the discharge of temperature-conditioned air from a plurality of zone outlets of an automotive HVAC system via an open architecture multi-zone HVAC unit having a single blower fan, an evaporator downstream of the blower and a heater downstream of the evaporator, wherein each zone in the module includes a temperature mix door for proportioning hot and cold air, which is controlled by a separate Discharge Temperature Maintenance control (DTM control), and an output valve for controlling a zonal output flow rate. The output valve of each zone outlet is placed in an output valve position associated with a target resistance; and the single blower fan is operated at a minimum voltage required for generating a total requested blower output flowrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.