公开(公告)号：US20150336439A1

公开(公告)日：2015-11-26

申请号：US14282173

申请日：2014-05-20

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： MINGYU WANG ,  PRASAD S. KADLE ,  JEFFREY C. KINMARTIN ,  DEBASHIS GHOSH ,  CHARLES A. ARCHIBALD

IPC: B60H1/00

CPC classification number: B60H1/00864 ,  B60H1/00064 ,  B60H2001/00092 ,  B60H2001/002

Abstract: An automotive HVAC system includes upper and lower mode cases configured to discharge separate streams of temperature-conditioned air into front and rear passenger zones. The system separates the inlet air into separate mixing chambers, and a third stream through a heater core. Blend doors control hot and cold air streams entering their respective mixing chambers. Operation is controlled by reading requested temperature, blower rate and mode for system zone outlet, converting requests to a flowrate, calculating total flowrate as a summation of all requests, employing a math model to calculate total zonal flowrate as a summation of all zonal flowrates, calculating a blower control error as a function of the difference between total blower request and total zonal flowrate, modifying the operating state using the calculated control error, positioning and resetting the mode valves into defrost, heater and vent openings, and resetting the mode valves.

Abstract translation: 汽车HVAC系统包括上部和下部模式壳体，其构造成将单独的温度调节空气流排放到前后乘客区域。 该系统将入口空气分离成单独的混合室，通过加热器芯将第三流分离。 混合门控制进入其各自混合室的冷气流。 操作通过读取要求的温度，鼓风机速率和系统区域出口的模式，将请求转换为流量，计算总流量作为所有请求的总和来控制，采用数学模型计算总区域流速，作为所有区域流量的总和， 计算鼓风机控制误差，作为总鼓风机要求与总区域流量之差的函数，使用计算出的控制误差修改运行状态，将模式阀定位和重置为除霜，加热器和通风口，以及复位模式阀。