公开(公告)号：US12116910B2

公开(公告)日：2024-10-15

申请号：US17777696

申请日：2020-11-11

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Steffen Lohde ,  Giovanni Mincione ,  Sebastian Sperrhacke ,  Din Wabbals

IPC分类号： F01L13/00 ,  F01L1/053 ,  F01L1/18 ,  F01L13/08 ,  F02D13/02 ,  F02D41/14

CPC分类号： F01L13/0063 ,  F01L1/053 ,  F01L1/185 ,  F01L13/08 ,  F02D13/0269 ,  F02D41/1446 ,  F01L2013/0068 ,  F01L2305/00 ,  F01L2820/044

摘要： A lift regulator for a variable lift valve gear has a cam contour arranged around an axis of rotation of the lift regulator for deflecting a lift adjustment of the valve gear on rotation of the lift regulator about the axis of rotation. The cam contour has a region deflecting from a resting position, a changeover region, and a region deflecting back to the resting position. A variable lift valve gear and a method for operating the variable lift valve gear are disclosed.

公开(公告)号：US12110814B2

公开(公告)日：2024-10-08

申请号：US17420777

申请日：2020-01-02

申请人： Vitesco Technologies GmbH

发明人： YoungMo Lee ,  HaMyeong Song ,  JaeWon Choi

IPC分类号： F01L1/344 ,  F01L13/00 ,  F02D13/02 ,  F02D41/24 ,  F02D41/00 ,  F02D41/20

CPC分类号： F01L1/3442 ,  F01L13/0015 ,  F02D13/0215 ,  F02D41/2464 ,  F01L2001/34426 ,  F01L2001/3443 ,  F01L2001/34433 ,  F01L2201/00 ,  F01L2800/00 ,  F01L2820/041 ,  F02D2041/001 ,  F02D2041/2027 ,  F02D2041/2055 ,  Y02T10/12

摘要： Various embodiments of the teachings herein include a method for controlling a cam using an ECU (electronic control unit) comprising: learning a holding region in which linearity is not ensured by increasing or decreasing a PWM signal while the cam maintains a holding state; based on the results of the learning, generating a final PWM signal; and transmitting the final PWM signal to an oil control valve. The final PWM signal comprises a sum of a minimum PWM signal for the cam to leave the holding region and a control PWM signal for the cam to reach a desired position.

公开(公告)号：US12092043B2

公开(公告)日：2024-09-17

申请号：US18275817

申请日：2022-02-04

申请人： Isuzu Motors Limited

发明人： Satoshi Hanawa

IPC分类号： F02D13/02 ,  F02D41/00 ,  F02D41/18

CPC分类号： F02D13/0234 ,  F02D41/009 ,  F02D41/182 ,  F02D2200/0411

摘要： Provided are a control device for an internal combustion engine, wherein the internal combustion engine is provided with a crank mechanism for converting a reciprocating motion of a piston into a rotating motion of a crankshaft, a cylinder accommodating the piston, and an intake valve capable of opening and closing an inlet for sucking gas into the cylinder, and the control device is provided with: a volumetric efficiency calculating unit for calculating a volumetric efficiency representing a suction efficiency when gas is sucked into the cylinder, on the basis of a cylinder capacity when the intake valve is closed; a gas suction amount calculating unit for calculating a gas suction amount sucked into the cylinder, by means of a predetermined formula, on the basis of the calculated volumetric efficiency; and a control unit for controlling the internal combustion engine on the basis of the calculated gas suction amount.

公开(公告)号：US12065980B2

公开(公告)日：2024-08-20

申请号：US17786315

申请日：2020-12-08

申请人： TURBO SYSTEMS SWITZERLAND LTD.

发明人： Raphael Ryser

IPC分类号： F02D41/00 ,  F02B29/04 ,  F02B37/00 ,  F02B37/013 ,  F02B37/16 ,  F02B37/18 ,  F02D13/02 ,  F02D19/02

CPC分类号： F02D41/0007 ,  F02B29/0412 ,  F02B37/004 ,  F02B37/013 ,  F02B37/162 ,  F02B37/18 ,  F02D13/0223 ,  F02D19/02 ,  F02D41/0027 ,  F02D2041/001 ,  F02D2041/002

摘要： A mixture supply system with quantitative mixture control comprises a charging system connectable to an internal combustion engine, comprising a bypass and a bypass valve, and a valve train for periodically actuating an intake valve of the internal combustion engine. A valve control time of the intake valve is controllable by the valve train. The system is configured to at least partially close the bypass valve and change the valve control time for extending the valve opening duration upon increase of an engine load, to at least partially open the bypass valve during and/or after expiration of a valve train latency time, and/or to at least partially open the bypass valve and change the valve control time for decreasing the valve opening duration upon an decrease of an engine load, and to at least partially close the bypass valve during and/or after expiration of a valve train latency time.

公开(公告)号：US12055104B2

公开(公告)日：2024-08-06

申请号：US17283388

申请日：2019-11-13

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Michael Etzel ,  Michael Friedrich ,  Sebastian Liebert

IPC分类号： F02D13/08 ,  B60K6/24 ,  B60K6/26 ,  B60K6/36 ,  B60K6/38 ,  B60K6/387 ,  B60K6/48 ,  B60K6/547 ,  B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60W20/15 ,  F02D13/02 ,  F02D13/06 ,  F02D41/00 ,  F16H57/00 ,  B60W30/18 ,  F16H57/04

CPC分类号： F02D13/08 ,  B60K6/24 ,  B60K6/26 ,  B60K6/36 ,  B60K6/387 ,  B60K6/48 ,  B60K6/547 ,  B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60W20/15 ,  F02D13/0203 ,  F02D13/06 ,  F02D41/0005 ,  F16H57/0006 ,  B60K2006/268 ,  B60K2006/4825 ,  B60W30/18127 ,  B60Y2200/92 ,  F02D2041/0012 ,  F02D2200/101 ,  F02D2200/503 ,  F16H2057/0012 ,  F16H57/04

摘要： A controller and a method for a hybrid drive, which includes an internal combustion engine and an electrical machine are provided. The internal combustion engine includes adjustment devices that deactivate the intake and exhaust valve opening actuation. The controller is designed in such a way that, in the case of at least one specified condition (such as regeneration during unfired overrun or in the case of electric travel, in particular in the case of operation with high activation frequency of the internal combustion engine, e.g., in charge sustaining or HEV operation), the intake and exhaust valves are kept at least approximately (preferably completely) closed at least approximately simultaneously while the internal combustion engine is unfired. The internal combustion engine must be connected to the electrical machine. If there is a disconnect clutch, the disconnect clutch is brought into the closed state or remains closed.

公开(公告)号：US20240254931A1

公开(公告)日：2024-08-01

申请号：US18565743

申请日：2022-05-31

申请人： Daimler Truck AG

发明人： Alexander ZINK ,  Marc Oliver WAGNER ,  Thomas SCHUHMACHER

IPC分类号： F02D13/02 ,  F01L1/047

CPC分类号： F02D13/0276 ,  F01L1/047

摘要： A method for operating an internal combustion engine. The internal combustion engine has multiple cylinders and the cylinders are assigned a respective exhaust valve and intake valve. The internal combustion engine has a crankshaft, an intake camshaft, and an exhaust camshaft. Initially, the internal combustion engine is operated in a first operating state. A second operating state of the internal combustion engine is set by the intake camshaft being adjusted late relative to the crankshaft in comparison to the first operating state and the exhaust camshaft being adjusted early relative to the crankshaft in comparison to the first operating state. To set the second operating state, the intake camshaft is adjusted late by a first value which is in a range from 50-120 crank angle degrees and the exhaust camshaft is adjusted early by a second value which is in a range of 1-35 crank angle degrees.

公开(公告)号：US12037956B1

公开(公告)日：2024-07-16

申请号：US18463076

申请日：2023-09-07

申请人： PACCAR Inc

发明人： Charles Wayne Reinhardt Swart ,  Stephen Anthony Ciatti ,  Nick Hertlein

IPC分类号： F02D41/06 ,  F02D13/02 ,  F02D41/30 ,  F02P5/15

CPC分类号： F02D41/062 ,  F02D13/0215 ,  F02D41/3076 ,  F02P5/1504 ,  F02D2200/021 ,  F02D2200/101

摘要： A method for starting a vehicle's engine includes: causing a crankshaft of the engine to begin to rotate and to rotate through a first plurality of rotations; and causing, for each combustion chamber of at least one combustion chamber of the engine, an exhaust valve of the combustion chamber to remain in an opened position while the crankshaft rotates through the first plurality of rotations and prior to fuel being injected into the combustion chamber.

公开(公告)号：US12012906B2

公开(公告)日：2024-06-18

申请号：US18002728

申请日：2021-05-11

申请人： AISIN CORPORATION ,  Mazda Motor Corporation

发明人： Yoshinari Tokunaga ,  Yuki Kasuya ,  Takano Nakai ,  Kenichiro Suzuki ,  Yoshiyuki Kamoyama ,  Toru Hirota

IPC分类号： F02D13/02 ,  F02D13/08 ,  F02D41/00 ,  F02D41/04

CPC分类号： F02D13/0215 ,  F02D13/0203 ,  F02D13/0223 ,  F02D13/0234 ,  F02D13/0242 ,  F02D13/0249 ,  F02D13/08 ,  F02D41/009 ,  F02D41/042 ,  F02D2041/001

摘要： A stop control device for an internal combustion engine is structured that stops the engine in a state suitable for starting and that does not cause a crank angle to change after the engine is stopped. A four-cycle internal combustion engine includes an electric valve opening and closing timing control device that sets an opening and closing timing of either or both of an intake valve and an exhaust valve. Stop control of stopping the internal combustion engine is performed when a stop signal for stopping the internal combustion engine is acquired, and post-stop phase control of displacing the opening and closing timing of the valve opening and closing timing control device in either an advancing direction or a retarding direction is performed after the internal combustion engine is stopped by the stop control.

公开(公告)号：US12006889B2

公开(公告)日：2024-06-11

申请号：US16989308

申请日：2020-08-10

申请人： Arctic Cat Inc.

发明人： Cord Miller Christensen ,  Alexander Konrad Fuhrman

IPC分类号： F02D41/08 ,  F02B33/04 ,  F02B33/28 ,  F02D13/02 ,  F02D41/00 ,  F02D41/30 ,  F02P9/00

CPC分类号： F02D41/08 ,  F02B33/04 ,  F02B33/28 ,  F02D13/0242 ,  F02D41/0007 ,  F02D41/009 ,  F02D41/086 ,  F02D41/30 ,  F02P9/00 ,  F02D2200/021 ,  F02D2200/0404 ,  F02D2200/0602 ,  F02D2200/0614 ,  F02D2200/08 ,  F02D2200/101 ,  F02D2200/703 ,  F02D2400/04

摘要： Embodiments describe a method of controlling a two-stroke internal combustion engine is shown. The method includes selecting one set of two or more sets of engine parameter inputs or a weighted value of two or more sets of engine parameter inputs, determining an engine output parameter from the selection, and utilizing the determined engine output parameter to control one or more engine operations; re-selecting one set of two or more sets of engine parameter inputs or a weighted value of two or more sets of engine parameter inputs during engine operation, utilizing the reselected output parameters to adjust one or more engine operations. Each set of engine parameter inputs includes a direct measurement of crankcase pressure and engine speed and optionally one or more of barometric pressure, exhaust valve position, air temperature, engine coolant temperature, exhaust temperature, boost pressure, crankshaft position and direction of rotation, humidity, fuel pressure, fuel temperature, detonation sensor level, exhaust oxygen content, and throttle valve angle.

公开(公告)号：US20240183290A1

公开(公告)日：2024-06-06

申请号：US18440939

申请日：2024-02-13

申请人： Cummins Inc. ,  Tula Technology, Inc.

发明人： Timothy R. Frazier ,  J. Steven Kolhouse ,  Steven J. Small ,  Louis Joseph Serrano

IPC分类号： F01L13/00 ,  F01L9/10 ,  F02D13/02 ,  F02D13/06 ,  F02D41/00

CPC分类号： F01L13/0005 ,  F01L9/10 ,  F02D13/0223 ,  F02D13/06 ,  F02D41/0087 ,  F01L2013/001

摘要： Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes initiating, by a controller, a CDA mode for an engine; determining, by the controller, a first cycle count for a first oil control solenoid of the CDA system; determining, by the controller, a second cycle count for a second oil control solenoid of the CDA system; comparing, by the controller, the first cycle count and the second cycle count; and modifying, by the controller, operation of the CDA mode for the engine based on the comparison.