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公开(公告)号：US20240344489A1
公开(公告)日：2024-10-17
申请号：US18604838
申请日：2024-03-14
申请人： Cummins Inc.
IPC分类号： F02M21/02
CPC分类号： F02M21/0275 , F02M21/0254 , F02M21/0257
摘要： A fuel injector for gaseous fuel is provided. The fuel injector includes a valve assembly with a first valve and a second valve. The first valve is actively controlled to permit and prohibit gaseous fuel flow through the first injector. The second valve is spaced from the first valve and passively controlled to open in response to the gaseous fuel flow though the first valve, and to close when the gaseous fuel flow is terminated by closing the first valve.
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公开(公告)号：US20240343157A1
公开(公告)日：2024-10-17
申请号：US18752444
申请日：2024-06-24
申请人： Cummins Inc.
发明人： Martin T. Books , Richard A. Booth
IPC分类号： B60L58/12 , B60K6/46 , G01R31/382
CPC分类号： B60L58/12 , B60K6/46 , G01R31/382 , B60L2260/52 , B60L2260/54
摘要： The present disclosure provides a method for determining the range of an electric vehicle or a hybrid electric vehicle. The method determines the range by estimating a SOC of the vehicle battery and/or a fuel gain by segregating estimation events and weight averaging data samples based on distance traveled during a sample period. The present disclosure also provides a method for determining battery failure for vehicles.
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公开(公告)号：US12115970B2
公开(公告)日：2024-10-15
申请号：US17178094
申请日：2021-02-17
申请人： Cummins Inc.
CPC分类号： B60W20/30 , B60K6/48 , B60W10/08 , B60W20/13 , B60K2006/4825
摘要： A vehicle system includes a powertrain including an electric motor operatively coupled with an automated manual transmission and an electronic control system including a gear shift control module, a transmission control module, and a motor control module in operative communication with one another over one or more controller area networks. The electronic control system includes supervisory controls configured to configured to arbitrate between a plurality of motor operation requests received over the one or more controller area networks to select a winning motor operation request, the plurality of motor operation requests including the operator torque request, evaluate one or more shift inhibit conditions, and command the electric motor to provide the winning motor operation request when none of the one or more shift inhibit conditions evaluate as true.
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公开(公告)号：US20240308510A1
公开(公告)日：2024-09-19
申请号：US18571155
申请日：2022-06-15
申请人： Cummins Inc.
CPC分类号： B60W30/143 , B60W10/06 , B60W10/10 , B60W10/18 , B60W10/30 , B60W50/0205 , B60W50/0225 , B60W50/14 , B60W2520/10 , B60W2552/20
摘要： Systems, apparatuses, and methods for controlling a transmission and other vehicle systems and components based on operation of an auxiliary braking system for a vehicle are disclosed. A controller for a vehicle includes a processing circuit having at least one memory device coupled to at least one processor, the at least one memory device is configured to store instructions thereon that, when executed by the at least one processors, cause the at least one processor to: receive data regarding operation of an auxiliary brake system of the vehicle; determine an auxiliary brake fault condition based on the received data regarding operation of the auxiliary brake system; determine that the vehicle is on or is about to experience a negative road grade; determine a vehicle speed is greater than a requested vehicle speed for the negative road grade; and control a transmission to downshift at least two settings relative to a current transmission setting.
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公开(公告)号：US12094264B2
公开(公告)日：2024-09-17
申请号：US17368730
申请日：2021-07-06
申请人： Cummins Inc.
CPC分类号： G07C5/0808 , B60W50/04 , G05B23/0283 , G05B23/0294 , G06Q10/20 , G07C5/006 , G07C5/008 , G07C5/0825 , G07C5/085 , G05B23/0275
摘要： An apparatus includes one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processing circuits to perform various operations. The operations include wirelessly receiving a plurality of fault codes from a vehicle control system; prioritizing each fault code within the plurality of fault codes; determining a first root cause fault code corresponding to the highest prioritized fault code in the plurality of fault codes; determining a first set of interaction fault codes, the first set of interaction fault codes relating to the first root cause fault code based on a causal relationship; and wirelessly transmitting the first root cause fault code and the first set of interaction fault codes to a display of an interface device.
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公开(公告)号：US20240271586A1
公开(公告)日：2024-08-15
申请号：US18535887
申请日：2023-12-11
申请人： Cummins Inc.
发明人： Raghuvaran Arumugam
摘要： Systems and apparatuses include a lubrication system having an engine piston defining a gudgeon pin aperture, a piston pooling cavity extending radially outward from the gudgeon pin aperture, a piston cooling gallery, and a piston lubrication passage. The piston lubrication passage is in fluid communication with the piston cooling gallery and the piston pooling cavity. The piston further includes a pin journal received in the gudgeon pin aperture of the engine piston and defining a journal aperture in fluid communication with the piston pooling cavity and a journal pooling cavity in fluid communication with the journal aperture. A gudgeon pin is received within the gudgeon pin aperture adjacent the pin journal, which provides fluid communication between the journal pooling cavity and the gudgeon pin.
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公开(公告)号：US12055107B2
公开(公告)日：2024-08-06
申请号：US17420186
申请日：2019-12-30
申请人： Cummins Inc.
发明人： Chirag Dhirajlal Ambaliya , Randal L. Bergstedt , Sunil Dhulipati , Hari Donepudi , Rohit Saha , Jagdeep I. Singh , Sumit Tripathi
CPC分类号： F02D29/04 , F02D1/02 , F02D29/02 , F02D31/002 , F02D31/007 , F02D33/02 , F04B17/05 , F04B49/08
摘要： A method includes detecting a change in a loading condition on an engine based on use of an implement system including a pump driven by the engine, an actuator fluidly coupled to the pump, and an implement repositionable with the actuator. The change in the loading condition is detected based on a variation in a command signal from a joystick that controls movement of the implement, an outlet pressure of the pump, a displacement of the pump, and/or an engagement signal of a clutch positioned to selectively couple the pump to the engine. The method further includes commanding a fueling system to increase an amount of fuel provided to the engine and/or an air handling system of the machine to increase an amount of air and/or a boost pressure of the air provided to the engine in response to detection of an increasing loading condition based on the variation.
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8.发明公开公开(公告)号：US20240253635A1
公开(公告)日：2024-08-01
申请号：US18290526
申请日：2022-05-20
申请人： Cummins Inc.
CPC分类号： B60W30/18127 , B60W10/08 , B60W30/182 , B60W50/082 , H04W4/40 , B60W2050/0063 , B60W2540/10 , B60W2540/12 , B60W2540/215 , B60W2556/45
摘要： Methods, apparatuses, and systems for controlling regenerative braking of a vehicle are disclosed. A user interface facilitates a user to provide an input to select an operating mode for the vehicle, the operating mode selected from one of selectable modes comprising: (i) manually controlled regenerative braking mode and (ii) automatically controlled regenerative braking mode. When the (i) mode is selected, the controller applies a scaling factor to the regenerative torque capability curve of the vehicle based on additional user input. When the (ii) mode is selected, the controller automatically applies the scaling factor based on one or more traction control events and environmental factors.
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公开(公告)号：US12044196B2
公开(公告)日：2024-07-23
申请号：US18056485
申请日：2022-11-17
申请人： Cummins Inc.
CPC分类号： F02M31/205 , F02B33/44
摘要： Control of an internal combustion engine system in response to a condensation condition associated with a charge air cooler is disclosed. One or more operating parameters of the internal combustion engine are monitored to the control charge air cooler coolant inlet temperature to keep the charge temperature above the estimated dew point to reduce or prevent condensation upstream of the intake manifold.
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公开(公告)号：US12044155B2
公开(公告)日：2024-07-23
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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