公开(公告)号：US20240218818A1

公开(公告)日：2024-07-04

申请号：US18554710

申请日：2022-04-11

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Lu Qiu ,  David Schmidt ,  Xiaobo Song ,  Yuying Song ,  Ying Yuan

IPC: F01N3/20 ,  B01D53/94

CPC classification number: F01N3/202 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/9495 ,  F01N3/208 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2258/012 ,  F01N2900/1411 ,  F01N2900/1602 ,  F01N2900/1806

Abstract: Systems and methods for controlling and managing ammonia slip are provided. A method includes: receiving, by a controller, data regarding operation of an exhaust aftertreatment system; determining, by the controller, that a condition for ammonia slip is present based on the data regarding operation of the exhaust aftertreatment system; determining, by the controller, that a condition for ammonia storage is present based on the data regarding operation of the exhaust aftertreatment system; and, commanding, by the controller, a heater to activate and warm a component of the exhaust aftertreatment system to reduce the stored amount of ammonia.

公开(公告)号：US20240034300A1

公开(公告)日：2024-02-01

申请号：US18266201

申请日：2021-12-08

Applicant: Cummins Inc.

Inventor： Lu Qiu ,  David Schmidt ,  Yuying Song ,  Jinyong Luo ,  Ying Yuan ,  Manik Narula

IPC: B60W20/15 ,  B60W10/06

CPC classification number: B60W20/15 ,  B60W10/06 ,  B60W2510/068 ,  B60W2510/244

Abstract: A method includes determining, by a controller, that a transient event for a hybrid vehicle is occurring; determining, by the controller, an increase of power demand for the hybrid vehicle based on the determined transient event; directing, by the controller, an amount of power from an electric motor of the hybrid vehicle to a powertrain of the hybrid vehicle based on the increase in power demand, the amount of power from the electric motor determined based on at least one of a state of charge of a battery of the hybrid vehicle; and increasing, by the controller, an amount of power from an engine of the hybrid vehicle as a power output from the electric motor decays to avoid an engine power output spike from the engine based on the determined increase in power demand.