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公开(公告)号：US20230231164A1
公开(公告)日：2023-07-20
申请号：US18186750
申请日：2023-03-20
申请人： CUMMINS INC.
IPC分类号： H01M8/04082 , H01M8/04111 , H01M8/04537 , H01M8/04746
CPC分类号： H01M8/04201 , H01M8/04111 , H01M8/04604 , H01M8/04753
摘要： An air handling system for a fuel cell stack includes a pneumatic storage device disposed downstream from a compressor, a flow control valve system configured to operatively couple an inlet of the pneumatic storage device to an outlet of the compressor and configured to operatively couple an outlet of the pneumatic storage device to an inlet of the fuel cell stack, and a controller configured to, in response to a power demand being greater than a threshold, cause the flow control valve to open to increase a flow rate of air from the pneumatic storage device to the fuel cell stack.
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62.发明授权公开(公告)号：US11703548B2
公开(公告)日：2023-07-18
申请号：US17205330
申请日：2021-03-18
申请人： Cummins Inc.
发明人： Aleksey Yezerets , Guodong Fan
IPC分类号： G01R31/392 , G01R31/385
CPC分类号： G01R31/392 , G01R31/385
摘要： Systems and methods for determining state of health (SOH) of a battery. For example, a method includes conditioning the battery by determining an initial state of charge of the battery; charging the battery from the initial state of charge to a first target state of charge via a predetermined multi-stage charging sequence; and determining SOH of the battery by charging the battery from the first target state of charge to a second target state of charge at an ICA charging rate; acquiring a voltage vs. capacity (QV) data of the battery during charging of the battery from the first target state of charge to the second target state of charge; obtaining an incremental capacity (IC) data based on at least the acquired QV data; pre-processing the IC data; extracting an incremental capacity analysis (ICA) peak from the IC data; and determining the SOH of the battery based upon the ICA peak.
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公开(公告)号：US20230220794A1
公开(公告)日：2023-07-13
申请号：US17928138
申请日：2021-05-27
申请人： Cummins Inc.
CPC分类号： F01N11/00 , F01N3/106 , F01N3/2066 , F01N2430/06 , F01N2550/02 , F01N2560/026 , F01N2560/14 , F01N2570/18 , F01N2610/02 , F01N2610/146 , F01N2900/0408 , F01N2900/0411 , F01N2900/08 , F01N2900/1602 , F01N2900/1616 , F01N2900/1622
摘要： A method for diagnosing a NOx sensor is provided. The method includes receiving data indicative of operating conditions of an engine or an aftertreatment system; determining, during a first period of time, that an amount of NOx output from the aftertreatment system satisfies a low NOx operating mode condition; determining, during a second period of time, that operating conditions for ammonia slip are present based on data regarding operation of the aftertreatment system; responsive to the determination that operating conditions for ammonia slip are present, determining that the amount of NOx output from the aftertreatment system satisfies a high NOx operating mode condition; comparing a difference between a minimum value from the first period of time and a maximum value from a second period of time to a diagnostic threshold; and responsive to the difference being less than the diagnostic threshold, setting an alert.
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公开(公告)号：US20230219154A1
公开(公告)日：2023-07-13
申请号：US18180205
申请日：2023-03-08
申请人： Cummins Inc.
发明人： Chen-Chun Kao , John K. Awad , Steven Valentin
CPC分类号： B23H7/20 , B23H1/02 , B23H7/265 , B23H9/14 , B23H9/16 , B23H9/00 , B23H2200/20 , G05B2219/45221
摘要： A method is provided comprising identifying an alignment point of a workpiece; positioning a first end of an electrode in the direction of the alignment point of the workpiece; applying a first voltage to the electrode wherein the applied first voltage generates a spark; rotating the electrode in a first direction; advancing the electrode toward the alignment point by a first distance wherein advancing the electrode and applying the first voltage creates a first orifice section; applying a second voltage to the electrode and modifying one or more operational parameters of the electrode; advancing the electrode toward the alignment point by a second distance wherein advancing the electrode and applying the second voltage causes formation of at least a second orifice section; wherein the first and second orifice sections cooperate to form an orifice comprising a first flow area and a second flow area.
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公开(公告)号：US11691504B2
公开(公告)日：2023-07-04
申请号：US17281498
申请日：2020-02-05
申请人： CUMMINS INC.
摘要： A prime mover system includes a first prime mover, a first drive shaft, a differential, a power take-off (PTO) drive shaft, a second drive shaft, a transmission, a first accessory, and an output shaft. The first drive shaft is operatively coupled to the first prime mover. The differential is coupled to the first drive shaft. The PTO drive shaft is coupled to the differential. The second drive shaft is coupled to the differential. The transmission is coupled to the second drive shaft. The first accessory is operatively coupled to the PTO drive shaft. The output shaft is coupled to the transmission. The transmission is configured to transfer rotation of the second drive shaft to the output shaft. Rotation of the PTO drive shaft is independent of rotation of the output shaft.
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公开(公告)号：US11680545B2
公开(公告)日：2023-06-20
申请号：US17319436
申请日：2021-05-13
申请人： Cummins Inc.
CPC分类号： F02M31/205 , F02D19/022 , F02D19/027 , F02M21/0212 , F02M21/0227 , F02M21/0287 , F02M37/0052 , F02M37/0064 , F02M37/20
摘要： Systems and methods for thermal management of a direct injection propane fuel system are disclosed that include control a temperature of the fuel tank at or below a desired operating temperature to avoid venting of fuel to atmosphere.
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67.发明公开公开(公告)号：US20230187663A1
公开(公告)日：2023-06-15
申请号：US18063498
申请日：2022-12-08
IPC分类号： H01M8/04111 , H01M8/04014 , H01M8/0432 , H01M8/04746
CPC分类号： H01M8/04111 , H01M8/04014 , H01M8/04358 , H01M8/04768 , H01M2250/20
摘要： The present disclosure generally relates to systems and methods in a vehicle or powertrain system including an air stream flowing through an air compressor and an air cooler into a fuel cell stack, an air stream flowing out of the fuel cell stack to an ambient through a backpressure valve, one or more sensors for measuring pressure or temperature in the first air stream or second air stream, and a controller controlling the flow of the first air stream, the flow of the scond air stream and the opening of the backpressure valve.
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公开(公告)号：US20230182763A1
公开(公告)日：2023-06-15
申请号：US18107760
申请日：2023-02-09
申请人： Cummins Inc.
发明人： Hoseinali Borhan , Edmund P. Hodzen
CPC分类号： B60W50/14 , G01C21/3469 , B60W40/06 , B60W2050/146 , B60W2050/0075
摘要： A method includes acquiring, by one or more processing circuits, an operating parameter of a component of a vehicle; acquiring, by the one or more processing circuits, at least one of static information or dynamic information regarding at least one route characteristic; determining, by the one or more processing circuits, an adjustment for the component of the vehicle based on the operating parameter and the at least one of the static information or the dynamic information indicating that an upcoming event is expected to cause the operating parameter of the component to be outside of a target operating range; and implementing, by the one or more processing circuits, the adjustment for the component of the vehicle to preemptively adjust the operating parameter of the component in advance of the upcoming event to maintain the operating parameter within the target operating range as the upcoming event is traversed.
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公开(公告)号：US20230182756A1
公开(公告)日：2023-06-15
申请号：US17911975
申请日：2020-03-20
申请人： Cummins Inc.
CPC分类号： B60W50/12 , B60W30/08 , B60W2510/305
摘要： A system and method of utilizing a power boost feature is disclosed. The power boost feature enables the vehicle to produce a greater amount of power when needed, for example, to provide launch assist or overtake assist in a vehicle. A power boost request processor may receive information from a plurality of information systems of the vehicle, including, for example, vehicle mass, enablement of an accelerator pedal kick down switch, an amount of time passed between power boost system functions as communicated by a timer, operation and/or status of a cooling system, system enablement, transmission enablement, vehicle speed, position of an accelerator pedal, grade of the road as communicated by a road-grade sensor, actual vehicle power, actual available vehicle power, available battery power, look ahead information, powertrain health, route information, existence of emission zones, weather, and advanced driver-assistance systems.
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公开(公告)号：US11668261B2
公开(公告)日：2023-06-06
申请号：US17605174
申请日：2019-04-22
申请人： Cummins Inc.
发明人： Donald J. Benson
IPC分类号： F02D41/38
CPC分类号： F02D41/3845 , F02D2200/0602 , F02D2200/101
摘要： A method and system is provided of controlling a pump having a pumping element comprising: determining, by a controller, a suspension of one or more fuel delivery events for a pumping element of the at least one pumping element; subsequent to determining the suspension of the one or more fuel delivery events, providing, by the controller, a first command to open an inlet valve of the pumping element to remove a portion of residual fluid within a pumping chamber based on pressure within the pumping chamber of the pumping element; and subsequent to providing the first command, providing, by the controller, a second command to close the inlet valve of the pumping element based on a top dead center (TDC) position of the pumping element.
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