发明名称 |
DOSING CONTROL SYSTEMS AND METHODS |
摘要 |
A dosing control system for a vehicle includes a pump control module and an enabling/disabling module. The pump control module controls a pump that provides dosing agent to a dosing agent injector located upstream of a selective catalytic reduction (SCR) catalyst in an exhaust system. The enabling/disabling module disables the pump for a predetermined melting period after engine startup when the dosing agent is frozen and selectively activates the pump during the predetermined melting period to cool the dosing agent injector when a tip temperature of the dosing agent injector is greater than a predetermined temperature.
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申请公布号 |
US2011047971(A1) |
申请公布日期 |
2011.03.03 |
申请号 |
US20100796062 |
申请日期 |
2010.06.08 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
MULLINS JASON DANIEL;SHETNEY JUSTIN A.;CRAWFORD KYLE E.;JASINKIEWICZ PAUL;DARR REBECCA J. |
分类号 |
F01N3/20 |
主分类号 |
F01N3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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