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公开(公告)号：US10443471B2
公开(公告)日：2019-10-15
申请号：US15586801
申请日：2017-05-04
Applicant: GM Global Technology Operations LLC
Inventor： Sarah Funk , Eric M. Sisco , Jose Deleon
Abstract: Technical solutions are described for an emissions control system for a motor vehicle including an internal combustion engine. The emissions control system includes a reductant injector device, a selective catalytic reduction (SCR) device, and a controller. The controller determines a reductant energizing time for the reductant injector device based on one or more operating conditions of the SCR device. The controller further computes a diagnostic adaptation factor for the reductant energizing time based on an on-board diagnostic signal. The controller further inputs an amount of reductant into the SCR device by adjusting a reductant energizing time of the reductant injector device according to the diagnostic adaptation factor.
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公开(公告)号：US20180320572A1
公开(公告)日：2018-11-08
申请号：US15586801
申请日：2017-05-04
Applicant: GM Global Technology Operations LLC
Inventor： Sarah Funk , Eric M. Sisco , Jose Deleon
CPC classification number: F01N3/208 , F01N9/005 , F01N11/007 , F01N2610/02 , F01N2610/146 , F01N2900/0402 , F01N2900/08 , F01N2900/1402 , F01N2900/1821
Abstract: Technical solutions are described for an emissions control system for a motor vehicle including an internal combustion engine. The emissions control system includes a reductant injector device, a selective catalytic reduction (SCR) device, and a controller. The controller determines a reductant energizing time for the reductant injector device based on one or more operating conditions of the SCR device. The controller further computes a diagnostic adaptation factor for the reductant energizing time based on an on-board diagnostic signal. The controller further inputs an amount of reductant into the SCR device by adjusting a reductant energizing time of the reductant injector device according to the diagnostic adaptation factor.
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