发明授权
- 专利标题： Method to control and diagnose an exhaust gas heat exchanger
- 专利标题（中）： 控制和诊断排气热交换器的方法
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申请号： US13479457申请日： 2012-05-24
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公开(公告)号： US09086001B2公开(公告)日： 2015-07-21
- 发明人: Angel Fernando Porras , Douglas Raymond Martin
- 申请人： Angel Fernando Porras , Douglas Raymond Martin
- 申请人地址： US MI Dearborn
- 专利权人： Ford Global Technologies, LLC
- 当前专利权人： Ford Global Technologies, LLC
- 当前专利权人地址： US MI Dearborn
- 代理机构： Brooks Kushman P.C.
- 代理商 David B. Kelley
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; F01N3/02 ; F01N3/10 ; F01N3/20 ; F01N5/02 ; F01N9/00 ; F02D41/14 ; F02D41/18 ; F02D41/22 ; F02D41/00
摘要：
A method for controlling an engine having an exhaust gas heat exchanger includes measuring air mass flow, engine coolant temperature (ECT), exhaust gas temperature (EGT), heat exchanger coolant temperature (HECT), and engine speed; and operating a valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed. A vehicle has an engine and an exhaust heat recovery system with an exhaust gas heat exchanger and a valve configured to control exhaust gas flow. A controller for the vehicle is configured to (i) measure air mass flow, ECT, EGT, HECT, and engine speed, and (ii) operate the valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed.
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