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公开(公告)号：US11578673B2
公开(公告)日：2023-02-14
申请号：US17537309
申请日：2021-11-29
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Mihai Dorobantu , Douglas J. Nielsen , Brian Franke
IPC: F02D17/02
Abstract: A method for controlling vehicle speed comprises selecting an engine speed profile for a vehicle. Road grade data is received and processed to determine a road grade for the vehicle. Vehicle speed data is received and processed to determine a vehicle speed for the vehicle. A cylinder deactivation mode for a valvetrain of a multi-cylinder engine of the vehicle is selected. The cylinder deactivation mode comprises deactivating one or more intake valve, exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. The selected cylinder deactivation mode provides a controlled deviation from the selected engine speed profile at the road grade and vehicle speed.
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公开(公告)号：US11578672B2
公开(公告)日：2023-02-14
申请号：US16326699
申请日：2017-08-17
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, Jr. , Douglas J. Nielsen , Brian Franke
Abstract: A friction loss management system for an engine, comprises a combustion engine comprising a crankshaft and a plurality of cylinders, a reciprocating piston assembly connected to the crankshaft, a fuel injector, an intake valve, and an exhaust valve. A control unit comprises at least one set of control algorithms configured to receive engine power demand data, and determine a number of cylinders of the plurality of cylinders for deactivation based on the received engine power demand data and further based on sensed or stored friction values for the plurality of cylinders. Determining the number of cylinders of for deactivation minimizes friction between the plurality of cylinders and their respective reciprocating piston assembly by selecting a cylinder combination of active cylinders and deactivated cylinders with the lowest total friction while meeting engine power demand. All cylinders can be deactivated for purposes of coasting or controlling speed during platooning.
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公开(公告)号：US20200224559A1
公开(公告)日：2020-07-16
申请号：US16831965
申请日：2020-03-27
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, JR. , Douglas J. Nielsen , Kshamta Bishnoi
Abstract: A combined exhaust and engine brake rocker arm assembly configured to selectively open first and second exhaust valves, includes a rocker arm body, an exhaust rocker arm assembly formed in the rocker arm body, and an engine brake rocker arm assembly formed in the rocker arm body and configured to operate in a collapse mode and a rigid mode. The exhaust rocker arm assembly is configured to selectively engage a valve bridge to open the first and second exhaust valves, and the engine brake rocker arm assembly is configured to selectively engage the valve bridge to open only the first exhaust valve.
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公开(公告)号：US20230235686A1
公开(公告)日：2023-07-27
申请号：US18117598
申请日：2023-03-06
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, JR. , Douglas J. Nielsen , Mark VanWingerden
Abstract: A rocker arm assembly selectively opening first and second engine valves. The assembly includes a rocker arm and a valve bridge operably associated with the rocker arm and including a main body and a lever rotatably coupled to the main body. The main body is configured to engage the first engine valve, and the lever is configured to engage the second engine valve.
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公开(公告)号：US20210324768A1
公开(公告)日：2021-10-21
申请号：US17267451
申请日：2019-08-07
Applicant: Eaton Intelligent Power Limited
Inventor： Mark Van Wingerden , Douglas J. Nielsen
Abstract: A rocker arm assembly comprises a valve side rocker arm portion, a cam side rocker arm portion configured to selectively rotate relative to the valve side rocker arm portion, and a latch pin assembly disposed in the valve side rocker arm portion and in the cam side rocker arm portion. Portions of the latch pin assembly are configured to move so that when the cam side rocker arm portion selectively rotates, the valve side rocker arm portion switches among a full lift mode, a partial lift mode, and a lost motion lift mode.
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Patent Agency Ranking
公开(公告)号：US20210310380A1
公开(公告)日：2021-10-07
申请号：US17266747
申请日：2019-08-07
Applicant: Eaton Intelligent Power Limited
Inventor： Mark Van Wingerden , Douglas J. Nielsen
Abstract: A valvetrain assembly comprises a valve bridge, a capsule, a first rocker arm, and a second rocker arm. The valve bridge comprises an upper surface comprising a central pressure point and an offset pressure point and a lower surface comprising a lower pivot point, a first valve interface, and a second valve interface. The capsule can be connected to the lower pivot point, the capsule configured to provide to the pair of engine valves one or both of a lash adjusting function and a deactivating mode. The first rocker arm is configured to actuate against the central pressure point to transfer a first valve lift mode to the valve bridge. The second rocker arm is configured to actuate against the offset pressure point to transfer a second valve lift mode to the valve bridge.
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公开(公告)号：US10858963B2
公开(公告)日：2020-12-08
申请号：US16597319
申请日：2019-10-09
Applicant: Eaton Intelligent Power Limited
Inventor： Douglas J. Nielsen , James E. McCarthy, Jr.
Abstract: An exhaust valve rocker arm assembly selectively opening first and second exhaust valves includes an exhaust rocker arm, an engagement capsule, a valve bridge operably associated with the rocker arm and including a main body, and a hydraulic actuator assembly disposed at least partially within an aperture formed within the main body. The hydraulic actuator assembly includes a first piston body and a second piston body disposed at least partially within the aperture formed in the main body. The exhaust rocker arm is configured to engage the valve bridge main body to engage the first exhaust valve, and the engagement capsule is configured to engage the hydraulic actuator to engage the second exhaust valve.
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公开(公告)号：US20200182098A1
公开(公告)日：2020-06-11
申请号：US16792521
申请日：2020-02-17
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, JR. , Douglas J. Nielsen , Mark VanWingerden
Abstract: A rocker arm assembly selectively opening first and second engine valves. The assembly includes a rocker arm and a valve bridge operably associated with the rocker arm and including a main body and a lever rotatably coupled to the main body. The main body is configured to engage the first engine valve, and the lever is configured to engage the second engine valve.
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公开(公告)号：US20190277206A1
公开(公告)日：2019-09-12
申请号：US16424369
申请日：2019-05-28
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, JR. , Mihai Dorobantu , Douglas J. Nielsen , Brian Franke
IPC: F02D17/02
Abstract: A method for controlling vehicle speed comprises selecting an engine speed profile for a vehicle. Road grade data is received and processed to determine a road grade for the vehicle. Vehicle speed data is received and processed to determine a vehicle speed for the vehicle. A cylinder deactivation mode for a valvetrain of a multi-cylinder engine of the vehicle is selected. The cylinder deactivation mode comprises deactivating one or more intake valve, exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. The selected cylinder deactivation mode provides a controlled deviation from the selected engine speed profile at the road grade and vehicle speed.
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公开(公告)号：US20220154653A1
公开(公告)日：2022-05-19
申请号：US17537309
申请日：2021-11-29
Applicant: Eaton Intelligent Power Limited
Inventor： James E. McCarthy, JR. , Mihai Dorobantu , Douglas J. Nielsen , Brian Franke
IPC: F02D17/02
Abstract: A method for controlling a transmission of a vehicle during cylinder deactivation can comprise receiving and processing a zero or negative torque requirement for the vehicle. Receiving and processing vehicle speed data can be included to determine a vehicle speed for the vehicle. A cylinder deactivation mode can be implemented for a valvetrain of a multi-cylinder engine of the vehicle, wherein the cylinder deactivation mode comprises deactivating one or more intake valve, one or more exhaust valve, and fuel injection for one or more cylinder of the multi-cylinder engine. Selecting one of an in-gear mode and a neutral mode for a transmission of the vehicle can be included while implementing the cylinder deactivation mode and while maintaining the determined vehicle speed.
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