公开(公告)号：US10662847B2

公开(公告)日：2020-05-26

申请号：US15918424

申请日：2018-03-12

Applicant: Cummins Inc.

Inventor： Erik L. Piper ,  Robert Edward Cochran ,  John P. O'Brien

IPC: F01N3/20 ,  F02N11/08 ,  F02D41/02 ,  F02D41/14

Abstract: An apparatus and method for controlling engine start/stop operations based at least in part on considerations relating to the thermal management of an exhaust gas after-treatment system. A control system may monitor and/or predict conditions and/or properties of the after-treatment system, including conditions related to the thermal management of a selective catalytic reduction system and the properties of an exhaust gas stream that has been released from an internal combustion engine and into the after-treatment system. Such conditions may be evaluated in determining whether the thermal management of the after-treatment system is at, or will be in, a condition that may accommodate a start/stop operation of the internal combustion engine with minimal, if any, adverse impact on the thermal management of the after-treatment system. Such an evaluation may, in at least certain situations, provide at least a consideration as to whether to de-activate or activate start/stop operations.

公开(公告)号：US20180202341A1

公开(公告)日：2018-07-19

申请号：US15918424

申请日：2018-03-12

Applicant: Cummins Inc.

Inventor： Erik L. Piper ,  Robert Edward Cochran ,  John P. O'Brien

IPC: F01N3/20 ,  F02D41/02 ,  F02D41/14 ,  F02N11/08

Abstract: An apparatus and method for controlling engine start/stop operations based at least in part on considerations relating to the thermal management of an exhaust gas after-treatment system. A control system may monitor and/or predict conditions and/or properties of the after-treatment system, including conditions related to the thermal management of a selective catalytic reduction system and the properties of an exhaust gas stream that has been released from an internal combustion engine and into the after-treatment system. Such conditions may be evaluated in determining whether the thermal management of the after-treatment system is at, or will be in, a condition that may accommodate a start/stop operation of the internal combustion engine with minimal, if any, adverse impact on the thermal management of the after-treatment system. Such an evaluation may, in at least certain situations, provide at least a consideration as to whether to de-activate or activate start/stop operations.