发明申请
- 专利标题: APPARATUS, SYSTEM, AND METHOD FOR DIESEL EXHAUST FLUID HEATING CONTROL
- 专利标题(中): 柴油机排气加热控制装置,系统及方法
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申请号: US12870552申请日: 2010-08-27
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公开(公告)号: US20110047966A1公开(公告)日: 2011-03-03
- 发明人: Yuetao Zhang , Mickey McDaniel , Baohua Qi , David Everard
- 申请人: Yuetao Zhang , Mickey McDaniel , Baohua Qi , David Everard
- 申请人地址: US MN Minneapolis
- 专利权人: CUMMINS IP, INC
- 当前专利权人: CUMMINS IP, INC
- 当前专利权人地址: US MN Minneapolis
- 主分类号: F02B27/04
- IPC分类号: F02B27/04 ; F01N9/00
摘要:
According to one embodiment, an apparatus for controlling the heating of diesel exhaust fluid (DEF) in a DEF delivery system includes a temperature comparison module that compares a difference between a sensed ambient air temperature and a sensed DEF tank temperature with a predetermined temperature difference threshold. Additionally, the apparatus includes a DEF heating status module that is configured to generate a DEF heating command according to (i) the sensed ambient air temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is less than the predetermined temperature threshold; and (ii) the sensed DEF tank temperature if the difference between the sensed ambient air temperature and sensed DEF tank temperature is more than the predetermined temperature threshold. The apparatus also includes a DEF heating control module that is configured to control the heating of the DEF according to the DEF heating command.