公开(公告)号：US20200318735A1

公开(公告)日：2020-10-08

申请号：US16305354

申请日：2017-06-12

Applicant: Perkins Engines Company Limited

Inventor： Michael Beyer

IPC: F16H61/468 ,  F16H61/66 ,  F16H61/472 ,  F16H63/50

Abstract: A method is provided for estimating input torque and output torque in a continuously variable transmission having a variator. The method comprising the steps of determining (202) a transmission input and/or output speed, calculating (204) the speed of each of a plurality of transmission components by reflecting the transmission input and/or output speed through the transmission to each of the plurality of transmission components, and calculating (208) the speed rate of change of each of the plurality of transmission components. The inertia torque of each of the plurality of transmission components is calculated (210) based upon its respective speed rate of change and a predetermined component inertia value (209). The method further comprises the steps of determining (211) a motor torque of the variator, and calculating (212) a transmission input torque and transmission output torque by reflecting the motor torque of the variator through the transmission to the transmission input and output. The calculated transmission input and output torque values are adjusted (214) to account for the calculated inertia torque values of those of the plurality of transmission components which lie between the variator and the transmission input, and the variator and the transmission output, respectively.

公开(公告)号：US20200318528A1

公开(公告)日：2020-10-08

申请号：US16376262

申请日：2019-04-05

Applicant: Perkins Engines Company Limited

Inventor： Marc B. Hewing ,  Jonathan Lee Gumbrell

IPC: F01P7/16 ,  F01P5/10 ,  F01P11/04

Abstract: A water pump housing includes a top horizontal pad defining a top horizontal pad normal axis pointing vertically, and a first return port and a second return port extending down vertically from the top horizontal pad.

公开(公告)号：US20190211925A1

公开(公告)日：2019-07-11

申请号：US16306059

申请日：2017-06-12

Applicant: Perkins Engines Company Limited

Inventor： Michael Beyer ,  Steven Spencer

IPC: F16H61/462 ,  F16H47/04 ,  F16H63/50

CPC classification number: F16H61/462 ,  F16H47/04 ,  F16H63/50 ,  F16H2059/363 ,  F16H2059/702 ,  F16H2059/704

Abstract: According to the present invention, there is provided a method of reducing output torque deficits during the launch of a vehicle having a continuously variable transmission, wherein the variator has an input connected to a prime mover and an output. The method comprises the steps of determining a rate of change of ratio in the transmission, and predicting a required motor speed ratio rate of change value of the variator on the basis of: (i) the determined rate of change of ratio in the transmission, and (ii) the configuration of the transmission. The speed of the variator output is adjusted so as to achieve the required motor speed ratio rate of change value.

公开(公告)号：US10047735B2

公开(公告)日：2018-08-14

申请号：US14366815

申请日：2012-12-17

Applicant: Perkins Engines Company Limited

Inventor： Paul J. Smith

IPC: F04B13/02 ,  F04C2/10 ,  B01F15/02 ,  F04C11/00

Abstract: The present disclosure relates to a mixing pump (10) for combining two or more substances. More specifically, the mixing pump (10) is adapted to combine controlled amounts of those substances so as to produce a mixture containing predetermined proportions of those substances. The mixing pump includes a chamber (23) lying in fluid communication with a first substance inlet (50), a second substance inlet (51) and a mixture outlet (52). The mixing pump (10) also includes a pumping member disposed in the chamber (23) and adapted to draw first and second substances from the first and second substance inlets (50,51) and to expel a mixture of those substances through the mixture outlet (52).

公开(公告)号：US20180163605A1

公开(公告)日：2018-06-14

申请号：US15828883

申请日：2017-12-01

Applicant: Perkins Engines Company Limited

Inventor： Siddharth Subhash Gharpure ,  Stuart Smith ,  James K. McCloskey ,  Tom Carlill

IPC: F01N11/00 ,  F01N3/20 ,  F01N3/28

CPC classification number: F01N11/002 ,  F01N3/208 ,  F01N3/2896 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/144 ,  F01N2610/146 ,  F01N2610/1493 ,  F01N2900/1808 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for monitoring an SCR injection system is disclosed. The method includes operating a pump, and measuring a first pressure drop value in the SCR injection system during actuation of a reductant injector. A second pressure drop value in the SCR injection system is measured during a further actuation of the reductant injector. It is determined to perform a deposit mitigation strategy based on the first pressure drop value and the second pressure drop value.

公开(公告)号：US20180142604A1

公开(公告)日：2018-05-24

申请号：US15818196

申请日：2017-11-20

Applicant: Perkins Engines Company Limited

Inventor： Naseer A. Niaz

IPC: F01N13/18 ,  F01N3/021 ,  F01N3/20 ,  F01N13/00 ,  B01D53/94

CPC classification number: F01N13/1805 ,  B01D53/9418 ,  B01D53/944 ,  F01N3/021 ,  F01N3/103 ,  F01N3/2006 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/1811 ,  F01N2340/04 ,  F01N2470/24 ,  F01N2590/08 ,  F01N2610/02 ,  Y02T10/20

Abstract: An aftertreatment assembly for an internal combustion engine is disclosed. The assembly includes an aftertreatment component with an inlet, and a pipe connection fluidly connected to the inlet. The pipe connection includes an adjustable spherical pipe joint that joins two angularly offset pipe sections, and a slip pipe joint that joins two axially aligned pipe sections and that can adjust a combined length of the two axially aligned pipe sections. The assembly allows for compensating the positional and orientational displacements between an exhaust outlet and the inlet of the aftertreatment assembly.

公开(公告)号：US09735723B2

公开(公告)日：2017-08-15

申请号：US15221924

申请日：2016-07-28

Applicant: Perkins Engines Company Limited

Inventor： John Rutledge ,  Stephen Watkins

IPC: H02P25/08 ,  H02P25/092 ,  H02P6/18 ,  H02P23/00 ,  H02P25/089

CPC classification number: H02P25/092 ,  H02P6/186 ,  H02P23/0031 ,  H02P25/089

Abstract: A method to control the rotor position in a reluctance motor includes: energizing a phase winding to an energized state so as to move a rotor relative to a stator; switching the phase winding between the energized state and a freewheeling state over a pulsing period to produce a plurality of phase current pulses wherein the phase current freewheels in the freewheeling state over a freewheeling period of each current pulse; sampling rates of change of phase current and amplitudes of phase current during a plurality of freewheeling periods; de-energizing the phase winding; and computing the angular position of the rotor.

公开(公告)号：US09702288B2

公开(公告)日：2017-07-11

申请号：US14391599

申请日：2012-12-07

Applicant: Perkins Engines Company Limited

Inventor： Naseer A. Niaz

IPC: F01N3/28 ,  F01N3/20 ,  F01N13/08 ,  F01N13/00 ,  F01N13/14 ,  F01N13/18 ,  F01N3/021 ,  F01N3/02 ,  F01N3/023 ,  G01M15/10 ,  B60R13/08 ,  B01D46/00 ,  F01N3/08 ,  B01D53/86 ,  F01N3/035 ,  B01D53/92 ,  F01N9/00 ,  H05K5/02 ,  H05K7/20 ,  B01F5/06 ,  F01N1/08

CPC classification number: F01N3/20 ,  B01D46/0002 ,  B01D46/0057 ,  B01D53/864 ,  B01D53/92 ,  B01F5/0613 ,  B01F2005/0621 ,  B01F2005/0636 ,  B60R13/0876 ,  F01N1/086 ,  F01N3/02 ,  F01N3/021 ,  F01N3/0233 ,  F01N3/035 ,  F01N3/08 ,  F01N3/28 ,  F01N3/2892 ,  F01N9/00 ,  F01N13/00 ,  F01N13/008 ,  F01N13/08 ,  F01N13/14 ,  F01N13/143 ,  F01N13/18 ,  F01N13/1805 ,  F01N2240/20 ,  F01N2260/022 ,  F01N2260/20 ,  F01N2450/22 ,  F01N2470/04 ,  F01N2490/06 ,  F01N2610/1453 ,  G01M15/102 ,  H05K5/02 ,  H05K7/20436 ,  Y10T29/49345

Abstract: An emissions cleaning module is provided including a first support, a second support and a mixer module. The mixer module extends between the first support and the second support. The mixer module includes an outer body and an inner body located within the outer body. In addition the outer body is fixedly retained to the first support and the second support. Further, a first end of the inner body is slidingly retained within the outer body, and a second end of the inner body is fixedly retained relative to the outer body at or near the second support.

公开(公告)号：US09651012B2

公开(公告)日：2017-05-16

申请号：US14644727

申请日：2015-03-11

Applicant: Perkins Engines Company Limited

Inventor： Naseer Niaz ,  Andrew Keen ,  luliana Mocanu

IPC: F02M61/14 ,  F01N3/10 ,  F01N3/20 ,  F01N3/021 ,  F01N13/00

CPC classification number: F02M61/14 ,  F01N3/021 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

Abstract: An injector mount for mounting an injector adjacent a curved fluid flow path includes an inner surface defining a boundary of the curved fluid flow path and an aperture between the inner surface and an outer surface. The aperture is configured to receive an injector. The inner surface includes a peripheral region, a central region recessed relative to the peripheral region, and an intermediate region including a convex surface that joins an inner edge of the peripheral region to an outer edge of the central region.

公开(公告)号：US09528456B2

公开(公告)日：2016-12-27

申请号：US14362699

申请日：2012-12-11

Applicant: PERKINS ENGINES COMPANY LIMITED

Inventor： Adam Stubbs

IPC: F02M25/07 ,  F02D41/00 ,  F02D41/22 ,  F16K31/04

CPC classification number: F02D41/0077 ,  F02D41/221 ,  F02M26/48 ,  F16K31/04 ,  Y02T10/47

Abstract: A method of controlling a valve assembly includes calculating, by a controller of the valve assembly, one or more electrical signals to move a valve element of the valve assembly dependent on an actual and a desired position of the valve element. The method also includes sending, by the controller, the one or more electrical signals to an electrical actuator of the valve assembly. The method further includes detecting a valve fault condition defined as the actual position of the valve element failing to match the desired position of the valve element after a configurable period has elapsed. When the valve fault condition is detected, the method includes substituting the data corresponding to the desired position of the valve element with pulses of waveform data which oscillate about a value corresponding to the desired position of the valve element until either of two predetermined conditions is met.

Abstract translation: 一种控制阀组件的方法包括：由阀组件的控制器计算一个或多个电信号，以根据阀元件的实际位置和期望位置来移动阀组件的阀元件。 该方法还包括由控制器将一个或多个电信号发送到阀组件的电致动器。 该方法还包括检测阀故障状态，其被定义为在经过可配置的时间段之后，阀元件的实际位置未能匹配阀元件的期望位置。 当检测到阀故障状况时，该方法包括用与波形数据相对应的波形数据的脉冲替换对应于阀元件的期望位置的数据，该值是与阀元件的期望位置相对应的值，直到达到两个预定条件之一 。