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1.发明申请
公开(公告)号：WO2023033694A1
公开(公告)日：2023-03-09
申请号：PCT/SE2022/050758
申请日：2022-08-19
Applicant: SCANIA CV AB
Inventor： DAHL, Andreas , SARBY, Håkan
Abstract: A method (100) of controlling a powertrain (2) of a vehicle (40) is disclosed. The powertrain (2) comprises a combustion engine (1) comprising a crankshaft (16), a cylinder (10), and a piston (12). The distance (d) between a piston top (12') of the piston (12) and a cylinder head (10') of the cylinder (10) is smaller than 0.5% of a stroke length (L) of the piston (12). The method (100) comprises the steps of monitoring (110) a rotational speed of a crankshaft (16) of the combustion engine (1), and if the rotational speed of the crankshaft (16) exceeds a threshold speed, increasing (120) the cylinder pressure at a gas exchanging phase of the cylinder (10), and restricting (130) the rotational speed of the crankshaft (16). The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), a powertrain (2), and a vehicle (40).
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公开(公告)号：WO2022250597A1
公开(公告)日：2022-12-01
申请号：PCT/SE2022/050499
申请日：2022-05-23
Applicant: SCANIA CV AB
Inventor： GÖRANSSON, Hans , ANDERSSON, Henrik , JOHANSSON, Pontus , RODEBÄCK, Joakim , DAHL, Andreas , HÖCKERDAL, Erik , ANDERBERG, Bengt
Abstract: A method (100) of controlling inlet valves (18) and exhaust valves (24) of a cylinder (10) of an internal combustion engine (1) to obtain an engine braking effect is disclosed. The method (100) comprises the steps of preventing (110) at least one exhaust valve (24) of the cylinder (10) from closing completely during a plurality of successive intake, compression, expansion, and exhaust strokes (41 - 44) of the cylinder (10), phase shifting (120) control of at least one exhaust valve (24) and regulating (130) the amount of air being pumped through the cylinder (10) by phase shifting control of at least one inlet valve (18) of the cylinder (10). The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), an internal combustion engine (1), and a vehicle (40) comprising an internal combustion engine (1).
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公开(公告)号：WO2022242850A1
公开(公告)日：2022-11-24
申请号：PCT/EP2021/063326
申请日：2021-05-19
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： HÜBNER, Zdenek , MORAITIS, Georgios , GUASCHINO, Mirko , TERNA, Peter
Abstract: A rocker arm assembly can comprise a rocker arm. A rocker shaft comprises a channel and an oil path enclosed in the rocker shaft. The oil path is configured to supply hydraulic pressure within the rocker shaft to the channel. Rotation-locking mechanism comprises a locking pin or pressure pin configured to slide in the channel. The oil path is configured to supply oil pressure to the locking pin or pressure pin within the rocker shaft. The locking pin can be configured to slide in the channel between a locked position, where the locking pin abuts a groove, and an unlocked position, where the locking pin is withdrawn into the channel. Or, a locking pin can be configured to slide in the rocker arm between a locked position abutting the locking groove and an unlocked position where the locking pin is withdrawn into the rocker arm.
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公开(公告)号：WO2022228732A1
公开(公告)日：2022-11-03
申请号：PCT/EP2022/025186
申请日：2022-04-26
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： WANG, Long , ANDRISANI, Nicola
Abstract: A combined exhaust and engine brake rocker arm assembly (20) configured to selectively open first and second exhaust valves (26, 28) includes a rocker arm body (40), an exhaust rocker arm assembly (16) formed in the rocker arm body (40), and a lost motion spigot assembly (56) including an adjustment nut (70) and guide (62) configured to receive a shaft assembly (60) for adjusting a lash of the lost motion spigot assembly (56). The shaft assembly is disposed within a bore (92) of the adjustment nut below an upper surface thereof, and an engine brake rocker arm assembly (18) is formed in the rocker arm body (40) and configured to operate in a collapse mode and a rigid mode. The lost motion spigot assembly (56) is configured to selectively engage a valve bridge (52) to open the first and second exhaust valves (26, 28), and the engine brake rocker arm assembly (18) is configured to selectively engage the valve bridge (52) to open only the first exhaust valve (26).
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公开(公告)号：WO2022083896A1
公开(公告)日：2022-04-28
申请号：PCT/EP2021/025421
申请日：2021-10-22
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： CISAR, Ondrej , HUBNER, Zdenek
Abstract: A castellation assembly (600) can comprise a first toothed body (601) comprising a first toothed end (611) and a biased end (610) comprising a projecting lever (615). The projecting lever can be configured to extend out from the biased end and contact an actuation lever throughout a travel of the first toothed body. The second toothed body can comprise a base (620) and a second toothed end (621) configured to mesh between or stack against the first toothed end. A castellation spring (630) can be configured to push the first and second toothed body apart. An actuator assembly (40) can actuate the castellation assembly and comprise an actuating lever assembly (50) configured to reciprocate between a contacting position against the projecting lever and a clearance position spaced from the projecting lever. A rocker arm (100) in a valvetrain can be controlled for variable valve actuation thereby.
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Patent Agency Ranking
公开(公告)号：WO2021144147A1
公开(公告)日：2021-07-22
申请号：PCT/EP2021/025008
申请日：2021-01-14
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： SHEREN, James, R. , RADULESCU, Andrei
IPC: F01L1/14 , F01L1/18 , F01L1/20 , F01L1/26 , F01L13/06 , F02D13/04 , F01L1/181 , F01L13/065 , F01L2001/186 , F01L2013/105 , F01L2303/01 , F01L2305/00 , F01L2800/06
Abstract: An engine brake rocker arm assembly for a valvetrain and operable in an engine drive mode and an engine braking mode. The assembly is configured to selectively open one of first and second exhaust valves in the engine braking mode and includes a brake rocker arm configured to rotate about a rocker shaft, and an engine brake capsule assembly movable between (i) a locked position configured to perform an engine braking operation, and (ii) an unlocked position that does not perform the engine braking operation. A lash setting tool is configured to removably engage the engine brake capsule assembly and move the engine brake capsule to the locked position to enable mechanical lash adjustment while the brake rocker arm is assembled in a valvetrain and the engine brake capsule is assembled in the brake rocker arm.
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公开(公告)号：WO2021083552A1
公开(公告)日：2021-05-06
申请号：PCT/EP2020/025484
申请日：2020-10-30
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： VAN WINGERDEN, Mark , STRONG, Andrew, T. , SPOOR, Anthony, L. , SHEREN, James, R. , REHM, Brent, L.
Abstract: A rocker arm assembly can comprise a main rocker arm and a latch assembly. A latching arm can control the latch assembly and thereby control the extent to which a secondary rocker arm acts on the main rocker arm. The main rocker arm can comprise a main body configured to rotate around a rocker shaft, a valve end extending from the main body, a reaction end extending from the main body, and a latch bore. A bias pin can extend from the main body. The latch assembly can be configured to selectively rotate in the latch bore. The latch assembly can comprise a first latch end comprising a switch plate configured to receive actuation force on a first side and to receive bias force from the bias pin on a second side. A second latch end can comprise a first latch seat and a second latch seat.
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公开(公告)号：WO2021013718A1
公开(公告)日：2021-01-28
申请号：PCT/EP2020/070265
申请日：2020-07-17
Applicant: MAN TRUCK & BUS SE
Inventor： MALISCHEWSKI, Thomas , HIRSCHMANN, Steffen , BUG, Andreas
Abstract: Die Erfindung betrifft einen variablen Ventiltrieb (10) zum Schalten eines Auslassventils (22) einer Brennkraftmaschine in einen Motorbremsmodus. Der variable Ventiltrieb (10) weist eine Nockenwelle (12) mit einem ersten Nocken (34), der als ein Normalbetriebsnocken ausgebildet ist, und einem zweiten Nocken (36), der als ein Motorbremsnocken ausgebildet ist, auf. Ein erster Kipphebel (14) weist eine erste Leerweg-Einrichtung (38) auf, die zum wahlweisen Schaffen oder Trennen einer ersten Wirkverbindung zwischen dem ersten Nocken (34) und dem Auslassventil (22) mittels des ersten Kipphebels (14) ausgebildet ist. Ein zweiter Kipphebel (16) weist eine zweite Leerweg-Einrichtung (40) auf, die zum wahlweisen Schaffen oder Trennen einer zweiten Wirkverbindung zwischen dem zweiten Nocken (36) und dem Auslassventil (22) mittels des zweiten Kipphebels (16) ausgebildet ist. Eine Ventileinrichtung (60) verbindet wahlweise die erste Leerweg-Einrichtung (38) oder die zweite Leerweg-Einrichtung (40) mit einer Fluidzufuhrleitung (66).
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9.发明申请
公开(公告)号：WO2020253993A1
公开(公告)日：2020-12-24
申请号：PCT/EP2020/025291
申请日：2020-06-17
Applicant: EATON INTELLIGENT POWER LIMITED
Inventor： EDKE, Pritam Gopal , SAGGAM, Nikhil , ANDRISANI, Nicola
Abstract: A rocker assembly for a type III center pivot valvetrain comprises a rocker arm comprising a cam end, a center pivot bore, and a valve end. The valve end comprises a first actuator bore and a second actuator bore. A cylinder deactivation actuator is in the first actuator bore. An engine brake actuator is in the second actuator bore. The rocker assembly can be part of a valve assembly and can impart an engine braking function, a cylinder deactivation function, and a main lift function to first and second valves. It is also possible to impart an early exhaust valve opening, a main lift function, and a late exhaust valve closing to the engine braking valve.
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10.发明申请
公开(公告)号：WO2020118284A1
公开(公告)日：2020-06-11
申请号：PCT/US2019/065113
申请日：2019-12-07
Applicant: JACOBS VEHICLE SYSTEMS, INC.
Inventor： MANDELL, John , ALEXANDRU, Matei
Abstract: A valve actuation system comprises at least one main rocker arm operatively connected to a first engine valve, the at least one main rocker arm configured to receive at least main valve actuation motions. A second rocker arm is operatively connected to a second engine valve, the second rocker arm being configured to receive first auxiliary valve actuation motions. The second rocker arm further comprising a hydraulically-controlled first actuator that can selectively couple or decouple the second rocker arm and the second engine valve thereby permitting or preventing conveyance of the first auxiliary valve actuation motions from the second rocker arm to the second engine valve. A one-way coupling mechanism disposed between the at least one main rocker arm and the second rocker arm permits valve actuation motions to be transferred from the at least one main rocker arm to the second rocker arm, but not vice versa.
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