Systems and methods for controlling cylinder deactivation operation in electrified powertrains

    公开(公告)号:US11378022B2

    公开(公告)日:2022-07-05

    申请号:US16983010

    申请日:2020-08-03

    Applicant: Cummins Inc.

    Abstract: At least some embodiments of the present disclosure are directed to systems and methods for controlling a cylinder deactivation (CDA) operation for an electrified powertrain, the electrified powertrain comprising an engine and an additional power source, the engine having a plurality of cylinders. The method includes the step of: operating the electrified powertrain in a CDA mode and deactivating one or more selected cylinders of the plurality of cylinders; receiving measurement data indicative of operating conditions of the electrified powertrain; analyzing the measurement data to determine whether a predetermined operating condition is met; and adjusting the CDA operation by adjusting the duration of the CDA operation or changing a number of deactivated cylinders.

    SYSTEM AND METHOD OF PERFORMING A RANGE ESTIMATION FOR HYBRID AND ELECTRIC VEHICLES

    公开(公告)号:US20200079223A1

    公开(公告)日:2020-03-12

    申请号:US16125038

    申请日:2018-09-07

    Applicant: CUMMINS INC.

    Abstract: A system is provided for performing an automated range estimation process for an electric vehicle using a processor. Included in the system is a range estimator configured to estimate an initial value of an energy required to travel a unit distance for the electric vehicle. The range estimator generates a first estimation model based on a correlation between a maximum all-electric-range and the energy required to travel a unit distance. Then, the first estimation model is adjusted based on one or more predetermined driving conditions. The maximum all-electric-range of the electric vehicle is updated based on the adjusted first estimation model. An estimated range of the electric vehicle is calculated based on the updated maximum all-electric-range of the electric vehicle and a fraction of total energy capability remaining in the electric vehicle. The estimated range of the electric vehicle is outputted and is used to control the electric vehicle.

    SYSTEMS AND METHODS FOR CONTROLLING CYLINDER DEACTIVATION OPERATION IN ELECTRIFIED POWERTRAINS

    公开(公告)号:US20220290622A1

    公开(公告)日:2022-09-15

    申请号:US17830055

    申请日:2022-06-01

    Applicant: Cummins Inc.

    Abstract: At least some embodiments of the present disclosure are directed to systems and methods for controlling a cylinder deactivation (CDA) operation for an electrified powertrain, the electrified powertrain comprising an engine and an additional power source, the engine having a plurality of cylinders. The method includes the step of operating the electrified powertrain in a CDA mode and deactivating one or more selected cylinders of the plurality of cylinders; receiving measurement data indicative of operating conditions of the electrified powertrain; analyzing the measurement data to determine whether a predetermined operating condition is met; and adjusting the CDA operation by adjusting the duration of the CDA operation or changing a number of deactivated cylinders.

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