公开(公告)号：US09130499B2

公开(公告)日：2015-09-08

申请号：US14022614

申请日：2013-09-10

Applicant: Eaton Corporation

Inventor： Bin Lu ,  Santosh Kumar Sharma ,  Ting Yan ,  Steven Andrew Dimino

IPC: G01P21/00 ,  H02P27/04 ,  G01P3/48 ,  G01P3/489 ,  H02P23/14 ,  H02P21/14

CPC classification number: H02P27/047 ,  G01P3/48 ,  G01P3/489 ,  H02P21/18 ,  H02P23/14

Abstract: A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

Abstract translation: 公开了一种用于确定AC感应电机的转子速度的系统和方法。 该系统被编程为根据线速度估计算法并且基于感应电动机的铭牌信息（NPI）以及在其运行期间的AC感应电机的参数来估计感应电机的转子速度。 转子速度估计系统还被编程为根据频域信号处理算法估计AC感应电机的转子速度，并且确定由此估计的转子速度是否有效。 如果通过频域信号处理算法估计的转子速度有效，则根据线速度估计算法估计交流感应电机的调谐转子速度，部分基于由频域信号处理算法估计的转子速度， 域信号处理算法。

公开(公告)号：US20180087475A1

公开(公告)日：2018-03-29

申请号：US15468739

申请日：2017-03-24

Applicant: Eaton Corporation

Inventor： Vaughn K. Mills ,  Matthew Memmer ,  Curtis T. Moy ,  Steven Ambrose ,  Russell Trapp ,  Robert P. Benjey ,  Max Russell Franklin ,  Kenneth Brauning ,  Santosh Balasaheb Patil ,  Atish Dinkar Gawale ,  Santosh Kumar Sharma ,  Hrushikesh Arun Barve ,  Pritam Bhurke

IPC: F02M25/08 ,  F02D41/00

CPC classification number: F02M25/0836 ,  B60K15/03504 ,  B60K15/03519 ,  B60K2015/03217 ,  B60K2015/0325 ,  B60K2015/03509 ,  B60K2015/03514 ,  B60K2015/03576 ,  B60K2015/0358 ,  B60K2015/03585 ,  F02D41/004 ,  F02M25/0809 ,  F02M25/0872 ,  F02M25/089

Abstract: A fuel tank system constructed in accordance to one example of the present disclosure includes a fuel tank, a first vent tube, an evaporative emissions control system and a cam driven tank venting control assembly. The first vent tube is disposed in the fuel tank. The evaporative emissions control system is configured to recapture and recycle emitted fuel vapor. The evaporative emissions control system has a controller. The cam driven tank venting control assembly has a rotary actuator that rotates a cam assembly based on operating conditions. The cam assembly has at least a first cam having a first cam profile configured to selectively open and close the first vent tube based on operating conditions.

公开(公告)号：US20140320148A1

公开(公告)日：2014-10-30

申请号：US13873326

申请日：2013-04-30

Applicant: EATON CORPORATION

Inventor： Santosh Kumar Sharma ,  Xin Zhou ,  Steven Andrew Dimino ,  Supriya Karnani ,  Snehal Kale ,  Rahul Choudhary ,  Debsubhra Chakraborty

IPC: G01R31/02

CPC classification number: G01R31/024 ,  G01R31/026 ,  G01R31/088 ,  G01R31/343 ,  H02H3/33 ,  H02H3/44 ,  H02H5/10 ,  H02H7/228

Abstract: A system and method for detecting excess voltage drop (EVD) in a three-phase electrical distribution circuit includes a diagnostic system comprising a processor that is programmed to receive three-phase voltages and currents provided to terminals of the electrical machine, determine fundamental components of the three-phase voltages and currents provided to the terminals, and compute positive, negative, and zero sequence currents from the fundamental components. The processor is also programmed to extract a compensated negative sequence current from the negative sequence current component, add the compensated negative sequence current to the positive sequence current to determine fault reference current phasors, determine a negative current reference phase angle for each phase based in part on a phase angle of the positive sequence current, and identify an EVD fault in the electrical distribution circuit based on the compensated negative sequence current, the fault reference current phasors, and the negative current reference phase angles.

Abstract translation: 用于检测三相配电电路中的过电压降（EVD）的系统和方法包括诊断系统，其包括被编程为接收提供给电机端子的三相电压和电流的处理器， 提供给端子的三相电压和电流，并从基本分量计算正，负和零序电流。 处理器还被编程为从负序电流分量提取补偿的负序电流，将补偿的负序电流加到正序电流以确定故障参考电流相量，部分地基于每个相确定负电流参考相位角 在正序电流的相位角上，基于补偿的负序电流，故障参考电流相量和负电流参考相位角来识别配电电路中的EVD故障。