Charger peak power optimization for fleet depot

    公开(公告)号:US12233739B2

    公开(公告)日:2025-02-25

    申请号:US17246605

    申请日:2021-05-01

    Applicant: Cummins Inc.

    Abstract: A system for charging electric vehicles is disclosed, comprising: vehicle chargers coupled to an electric power grid; and a controller in communication with the chargers and vehicles and configured to execute software to cause the controller to: determine characteristics of each vehicle, the characteristics including a charge capacity of a battery system of each vehicle and a mission schedule; determine characteristics of each charger, the characteristics including a type of each charger and a charging capacity; process the characteristics of each vehicle and each charger to identify charging opportunities for each vehicle over the course of a time period; and perform a peak power optimization analysis to generate a vehicle charging profile configured to activate a minimum number of chargers simultaneously and to minimize downtimes of the plurality of chargers to thereby distribute the power demand from the electric power grid and result in an initial peak power demand.

    OPTIMAL ROUTE PLANNING FOR ELECTRIC VEHICLES

    公开(公告)号:US20240102815A1

    公开(公告)日:2024-03-28

    申请号:US18383143

    申请日:2023-10-24

    Applicant: Cummins Inc.

    CPC classification number: G01C21/3469 G01C21/3492 G01C21/3694 G01C21/3697

    Abstract: A method of route planning for an electric vehicle includes obtaining waypoint data that indicates waypoint locations for the electric vehicle. The method also includes generating a map and a plurality of route segments to connect each of the waypoint locations on the map. Further, the method includes calculating an optimal route for the electric vehicle to visit each of the waypoint locations by evaluating the plurality of route segments. In response to detecting changes occurring in conditions associated with each of the plurality of route segments, the method includes recalculating the optimal route for the electric vehicle.

    Optimization of mission efficiency through platoon opportunity assessment

    公开(公告)号:US10788845B2

    公开(公告)日:2020-09-29

    申请号:US16208020

    申请日:2018-12-03

    Applicant: Cummins Inc.

    Abstract: A method, an optimization controller, and combustion engine are disclosed. The method includes determining, by an optimization controller, values of a performance parameter of a target vehicle using characteristics of at least two platoons travelling on a roadway, each of the values corresponding to a platoon of the at least two platoons; selecting, by the optimization controller, one of the at least two platoons based on a comparison of the values of the performance parameter, and coordinating, by the optimization controller, for the target vehicle to join the selected of the at least two platoons.

    Active prognostics and diagnostics of engine-driven rotary accessories with intermittent duty cycles

    公开(公告)号:US10351138B2

    公开(公告)日:2019-07-16

    申请号:US15816271

    申请日:2017-11-17

    Applicant: Cummins Inc.

    Abstract: One embodiment is a system comprising an engine structured to output torque to an accessory drive, a rotary load structured to be selectably driven by the accessory drive, and an electronic control system. The electronic control system is operable to selectably engage and disengage the rotary load effective to vary the load on the engine, monitor engine load values in coordination with engagement of the rotary load, store a data set comprising the monitored engine load values in association with values of one or more associated system conditions in a non-transitory memory medium, update a mathematical model of the system stored in the non-transitory memory medium in response to the engine load values to converge one or more model parameters, diagnose or prognosticate a failure state of the rotary load in response to a change in the one or more model parameters, and output a perceptible diagnostic indication of the failure state in response to the diagnosis or prognostication.

    ACTIVE PROGNOSTICS AND DIAGNOSTICS OF ROTARY ENGINE-DRIVEN ACCESSORIES WITH INTERMITTENT DUTY CYCLES

    公开(公告)号:US20190152485A1

    公开(公告)日:2019-05-23

    申请号:US15816271

    申请日:2017-11-17

    Applicant: Cummins Inc.

    Abstract: One embodiment is a system comprising an engine structured to output torque to an accessory drive, a rotary load structured to be selectably driven by the accessory drive, and an electronic control system. The electronic control system is operable to selectably engage and disengage the rotary load effective to vary the load on the engine, monitor engine load values in coordination with engagement of the rotary load, store a data set comprising the monitored engine load values in association with values of one or more associated system conditions in a non-transitory memory medium, update a mathematical model of the system stored in the non-transitory memory medium in response to the engine load values to converge one or more model parameters, diagnose or prognosticate a failure state of the rotary load in response to a change in the one or more model parameters, and output a perceptible diagnostic indication of the failure state in response to the diagnosis or prognostication.

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