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Hvac unit with anti-reflux control and method of operation

A technology for controlling valves and chambers, applied in transportation and packaging, heating/cooling equipment, vehicle components, etc., can solve problems such as increasing vehicle fuel consumption, vehicle cost and operating cost, and increasing exhaust emissions

Active Publication Date: 2021-04-02
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, dual module applications lead to increased vehicle fuel consumption as well as increased exhaust emissions
All of these items contribute significantly to overall vehicle and operating costs

Method used

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  • Hvac unit with anti-reflux control and method of operation
  • Hvac unit with anti-reflux control and method of operation
  • Hvac unit with anti-reflux control and method of operation

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] figure 1 One version of the HVAC module 200 with the anti-reflux control valve 290 of the present invention is shown. Where practicable, reference numbers for like parts are used commonly between the drawings. refer to figure 1 , the present invention belongs to the HVAC module 200 of open architecture. An open architecture HVAC module means that the cores of the heat exchangers 204, 206 are partially not separated into dedicated areas by the internal partition walls 208, 210 of the HVAC housing 202, and pass through all or Part of the air flow may be intercepted by mixing valves 224a, 224b and directed to any one or more zones. In other words, the entire core of each heat exchanger 204, 206 (rather than just a portion of the core of each heat exchanger 204, 206) can be used to condition airflow to one or more zones at all times. Unlike prior art HVAC modules, the open architecture HVAC module 200 enables super cooling or super heating of any one zone, or enables ...

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PUM

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Abstract

The HVAC module has an air intake, an evaporator downstream of the blower, a heater downstream of the evaporator, and an aftermix zone downstream of the evaporator and heater, where a control valve prevents the flow of cold air back into the heat by regulating the pressure of the cold air. Air. A method was devised to control the anti-reflux control valve of this HVAC module by: reading the pressure and temperature at various points within the HVAC module; setting air flow and temperature discharge target values; calculating the control valve and mixing valve resistance; determining corresponding control valve and mixing valve positions; and moving the control valve and mixing valve to those corresponding positions.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Application Serial No. 14 / 685,933, entitled "AN HVAC MODULE HAVING AN OPENARCHITECTURE," filed April 14, 2015, which The entire content of is incorporated herein by reference. technical field [0003] The present invention relates to heating, ventilation and air conditioning (HVAC) modules for passenger vehicles. Background technique [0004] Conventional motor vehicles typically have a single temperature-controlled zone air conditioning system designed to provide conditioned air to front passengers in the vehicle's cabin. As the size of vehicles increases, and as vehicle occupants demand more luxurious features, air conditioning systems capable of providing multiple temperature-controlled zones, or multi-zone air conditioning systems, become more widespread. The multi-zone air-conditioning system allows the driver, front passenger, and even rear seat passengers to h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/00
CPCB60H1/00064B60H1/00807B60H1/00899B60H2001/002B60H2001/00942B60H1/00678B60H1/00842B60H1/0073B60H1/00521B60H1/00871B60H2001/00192B60H2001/00721
Inventor P·S·凯德尔J·C·金马丁刘文王明玉夏燕萍
Owner MAHLE INT GMBH