公开(公告)号：US11047402B2

公开(公告)日：2021-06-29

申请号：US16639952

申请日：2018-08-17

Applicant: Punch Powertrain N.V.

Inventor： Rekha Kandiyil Raveendran ,  Timotheus Franciscus Adrianus Van Els

IPC: F15B15/20 ,  F16H61/00 ,  F16H61/02

Abstract: Electrically controllable hydraulic system for a vehicle transmission and method for controlling the same An electrically controllable hydraulic system (1) for a vehicle transmission comprises a pressure pump system (4a, 4b) and a subsystem (1A) comprising a transmission element (2) and an electrically controlled hydraulic pressure controlling module (1B) including a hydraulic valve element (15) for controlling a hydraulic pressure for actuating the transmission element (2) and an electromagnetically controllable operating element (21) for operating the hydraulic valve element (15). The subsystem (1A) and the pressure controlling module (1B) have a first and a second cut-off frequency (f1, f2) with f2>f1. The hydraulic system includes a driver circuit (32) for driving the pressure controlling module (1B) that comprises a full bridge circuit and a control circuit (42) for simultaneously controlling both switching elements of the driver circuit with a duty cycle according to an input value of the input signal (lset) dithered with a frequency (fdith) in the range (f1, f2).

公开(公告)号：US11293501B2

公开(公告)日：2022-04-05

申请号：US17058475

申请日：2019-05-27

Applicant: Punch Powertrain N.V.

Inventor： Bas Gerard Vroemen

IPC: F16D48/10 ,  B60W10/02 ,  B60W10/08 ,  B60W40/105

Abstract: A powertrain for a vehicle is disclosed that includes an electromagnetic driving unit (10) and a transmission module (20) having a controllable clutch (21) the powertrain further includes a control system to control the electromagnetic driving unit and to control the clutch. The controller has a safety operational mode wherein it controls an engagement of the controllable clutch with a feedback loop in which a desired extent of engagement is positively correlated to a difference between an extent of slip as indicated by the slip indicator and a positive reference value for the extent of slip, wherein the slip indicator indicates the extent of slip with a sign that is the product of the sign of the difference between the rotational speed of the input shaft and a rotational speed of the output shaft and a desired driving torque sign.

公开(公告)号：US10371216B2

公开(公告)日：2019-08-06

申请号：US15563130

申请日：2016-04-01

Applicant: Punch Powertrain N.V.

Inventor： Peter Mark Smid ,  Stefan Hubertus Godelieve Van Raemdonck

IPC: B60T13/12 ,  F15B11/16 ,  F16D48/02 ,  F16D25/12 ,  F16H61/00 ,  F16H61/02 ,  B60T15/02 ,  F16D67/04 ,  F15B13/02 ,  F15B13/06

Abstract: A hydraulic system for a multiple friction transmission, comprising: a first pressure relief valve 5 regulable by means of a first pilot pressure; a normally-open drain valve 8, which is a directional valve switchable between an open state and a closed state by means of a second pilot pressure; at least one first pressure regulator 11 for operating the drain valve by means of a first pilot pressure and a second pilot pressure, respectively; wherein in the event of detrimental hydraulic pressure build up, the second pilot pressure is dropped to open the drain valve, so as to relieve pressure through the drain line.

公开(公告)号：US20230026557A1

公开(公告)日：2023-01-26

申请号：US17786289

申请日：2020-12-18

Applicant: Punch Powertrain N.V.

Inventor： Mohammad GALAB

IPC: H02K1/32 ,  H02K7/00 ,  H02K9/19

Abstract: An electric machine and method for cooling an electric machine Abstract There is disclosed an electric machine comprising a rotatable shaft comprising an axial channel with a first diameter D1 for receiving cooling fluid; a rotor, arranged to receive the shaft and to be fixedly connected to the shaft; a stator, arranged for mounting over the rotor; wherein the shaft comprises at least one first radial outlet at a first end, and at least one second radial outlet at a second end for allowing cooling fluid to be supplied towards the stator, wherein the channel has a dam section extending from the first end to the second end of the shaft having a second diameter D2 larger than the first diameter D1.

公开(公告)号：US20210270329A1

公开(公告)日：2021-09-02

申请号：US17257346

申请日：2019-07-03

Applicant: Punch Powertrain N.V.

Inventor： Antonius Arnoldus Maria VAN DEURZEN

IPC: F16D21/04 ,  F16H3/087 ,  F16H63/32 ,  F16D23/06

Abstract: A lay-shaft assembly for use in a vehicle transmission, including a lay-shaft which is rotatable around a central axis, a first gearwheel rotatable around the lay-shaft and the central axis, a second gearwheel fixedly connected to the lay-shaft and rotatable with the lay-shaft around the central axis, and a clutching assembly rotatable around the lay-shaft and the central axis. The clutching assembly includes a driven gearwheel and clutching mechanism for selectively coupling the rotation of the driven gearwheel to either the first gearwheel or the second gearwheel. The clutching assembly has a first axial end and a second axial end opposite the first axial end. The first gearwheel and the second gearwheel are arranged on a part of the lay-shaft extending from the first axial end of the clutching assembly.

公开(公告)号：US20200378492A1

公开(公告)日：2020-12-03

申请号：US16604587

申请日：2018-04-18

Applicant: Punch Powertrain N.V.

Inventor： Roell Marie VAN DRUTEN ,  Peter Mark SMID

IPC: F16H61/00 ,  F16H61/02

Abstract: A hydraulic system for a vehicle transmission with at least two friction elements, the system comprising a first hydraulic circuit comprising a pump for supplying hydraulic fluid to the first hydraulic circuit. A flow restriction may be provided in the first hydraulic circuit between an output of the pump and a sump for providing leakage of hydraulic fluid into the sump. Further, a second hydraulic circuit comprising a second pump may be arranged, wherein the hydraulic pressure in the first circuit is higher compared to the second circuit. A flow control element operated using hydraulic pressure from the first circuit may be arranged for controlling flow/pressure in the second circuit. Further, the hydraulic system may be arranged for generating a line pressure, wherein an actuator for engaging a park lock system may be connected to the first hydraulic circuit for enabling direct actuation by means of the line pressure.

公开(公告)号：US10823280B2

公开(公告)日：2020-11-03

申请号：US16304614

申请日：2017-05-29

Applicant: Punch Powertrain N.V.

Inventor： Bert Johannes Cornelis Van Bakel

IPC: F16D25/0638 ,  F16H57/08 ,  F16H1/28

Abstract: Actuation unit for a clutch system of a motor vehicle drivetrain including: a drive plate on an input shaft of the clutch system; a clutch piston arranged to actuate a clutch of the clutch system; a compensation chamber plate defining a compensation chamber; wherein the clutch piston separates a pressure chamber between the drive plate and the clutch piston from the compensation chamber between the clutch piston and the compensation chamber plate. The pressure chamber contains a hydraulic fluid for hydraulically actuating the clutch piston, and the compensating chamber is arranged to compensate centrifugal force pressure on the clutch piston. The compensation chamber plate is fixedly connected to the drive plate.

公开(公告)号：US20240288067A1

公开(公告)日：2024-08-29

申请号：US18565158

申请日：2022-05-31

Applicant: Punch Powertrain N.V.

Inventor： Cláudio Filipe Semedo BRITO ,  Pandiaraja KUMAR

IPC: F16H61/12 ,  F16H59/36 ,  F16H59/40 ,  F16H59/42 ,  F16H59/62 ,  F16H59/64 ,  F16H59/68 ,  F16H59/72 ,  F16H61/30 ,  G01K13/02 ,  G01M13/022

CPC classification number: F16H61/12 ,  F16H59/40 ,  F16H59/42 ,  F16H59/62 ,  F16H59/64 ,  F16H59/72 ,  F16H61/30 ,  G01K13/026 ,  G01M13/022 ,  F16H2059/366 ,  F16H2059/683 ,  F16H2061/1284

Abstract: Method for determining a hydraulic fluid parameter of a hydraulic clutch for a transmission of a vehicle, comprising receiving from a sensor a measurement of the hydraulic fluid parameter; receiving a further parameter different from the hydraulic fluid parameter; estimating the hydraulic fluid parameter based on at least the obtained further parameter; and comparing the received sensed hydraulic fluid parameter with the estimated hydraulic fluid parameter.

公开(公告)号：US11994211B2

公开(公告)日：2024-05-28

申请号：US17824157

申请日：2022-05-25

Applicant: Punch Powertrain N.V.

Inventor： Koen Roger Emma Hendrickx

IPC: F16H63/18 ,  F16H63/30

CPC classification number: F16H63/18 ,  F16H2063/3096

Abstract: A groove follower is provided for cooperating with a shift groove of a shift drum of a multi-step sequential transmission for a motor vehicle, comprising a groove follower body, comprising at least one contact surface for contacting a lateral face of the shift groove of the shift drum, wherein at least part of the at least one contact surface is formed as part of an outer surface of a three-dimensional helix with a helix diameter and a helix pitch.

公开(公告)号：US20230341001A1

公开(公告)日：2023-10-26

申请号：US17796404

申请日：2021-02-16

Applicant: Punch Powertrain N.V.

Inventor： Jan Willem VAN DER VECHT

IPC: F16D1/08 ,  F16B21/18 ,  F16C19/06 ,  F16C35/063

CPC classification number: F16D1/08 ,  F16B21/186 ,  F16C19/06 ,  F16C35/063 ,  F16D2250/0084

Abstract: The invention relates to a shaft assembly for a rotating machine, comprising a shaft, a clamping element and a retaining element. The clamping element can be implemented as a circlip for counteracting or limiting axial movement of a shaft attribute. Further, the retaining element has a mainly annular geometry extending in a circumferential direction around the shaft. Also, the retaining element is provided with a locking element located offset from the shaft such that the clamping element is radially locked between the shaft and the locking element.