Integrated start/stop and after-treatment controls

    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.

    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.

    INTEGRATED START/STOP AND AFTER-TREATMENT CONTROLS

    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.

    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.

    Systems and method for optimizing engine operations in gensets

    公开(公告)号:US11563394B2

    公开(公告)日:2023-01-24

    申请号:US17722160

    申请日:2022-04-15

    Applicant: Cummins Inc.

    Abstract: A system includes a generator and an engine coupled to the generator. The engine is configured to provide mechanical power to the generator. The system further includes a controller coupled to the engine and the generator. The controller is configured to: receive information regarding an engine operating parameter threshold value at which an engine operating parameter value failed to match a load demand value that is indicative of a load exerted by the generator on the engine, and set the engine operating parameter threshold value as a maximum allowable engine operating parameter value for the engine.

    Engine start/stop function management

    公开(公告)号:US10385817B2

    公开(公告)日:2019-08-20

    申请号:US16249223

    申请日:2019-01-16

    Applicant: Cummins Inc.

    Abstract: A system and method for controlling automatic start/stop operations for an engine. While the engine is shutdown, operation of the engine may be automatically started upon expiration of a threshold time limit or in response to one or more adverse or deteriorated conditions of a power storage device, such as, for example, a state of health, state of function, or state of charge of the power storage device. After the engine has been automatically started, the ability of the controller to subsequently automatically stop the operation of the engine may be disabled until at least one secondary condition is satisfied. Upon satisfaction of the at least one secondary condition, the controller may again be enabled to at least automatically stop the operation of the engine.

    SYSTEMS AND METHODS FOR OPTIMIZING ENGINE OPERATIONS IN GENSETS

    公开(公告)号:US20210044230A1

    公开(公告)日:2021-02-11

    申请号:US16979741

    申请日:2019-03-11

    Applicant: Cummins Inc.

    Abstract: A system comprises a generator and an engine coupled thereto. The engine is configured to provide mechanical power to the generator. A controller is coupled to the engine and the generator and is configured to compare an engine operating parameter value to a load demand value indicative of a load exerted by the generator on the engine. The controller determines that the engine operating parameter value fails to match the load demand value. The controller determines an engine operating parameter threshold value at which the engine operating parameter value failed to match the load demand value, and sets the engine operating parameter threshold value as a maximum allowable engine operating parameter value for the engine.

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