公开(公告)号：US11430319B1

公开(公告)日：2022-08-30

申请号：US17489466

申请日：2021-09-29

Applicant: Caterpillar Inc.

Inventor： Nathan S Pauli ,  Pengfei Ma ,  Kalpeshkumar N. Patel ,  Richard Andrew Carpenter ,  James David Siegle ,  Vignesh Jayakumar ,  Richard Scott Cushing

IPC: G08B21/18

Abstract: Cavitation that occurs within a pump of a machine, such as truck or other work machine, can potentially damage the pump and/or other components of the machine. The machine can have a cavitation monitor configured to detect cavitation and/or cavitation damage associated with the pump based on vibration data, speed data associated with mechanical movements of the pump, and operating data associated with the machine overall. If the cavitation monitor detects cavitation and/or cavitation damage, the cavitation monitor can cause corresponding alerts to be displayed to a machine operator or other user.

公开(公告)号：US10337537B2

公开(公告)日：2019-07-02

申请号：US15690389

申请日：2017-08-30

Applicant: Caterpillar Inc.

Inventor： Jason Brinkman ,  Richard Andrew Carpenter

IPC: G06G5/00 ,  F15B19/00 ,  F15B1/26

Abstract: A system for determining a health status of a tank is provided. The system includes a temperature sensor, a pressure sensor, a sensor coupled to a hydraulic actuator, a breather valve, and a controller. The controller is configured to receive a signal indicative of a temperature and a volume of a fluid within the tank from the temperature sensor and the sensor coupled to the hydraulic actuator respectively. The controller is configured to determine an estimated pressure of the fluid within the tank based on the received signals and a breather performance curve. The controller is configured to receive a signal indicative of a pressure of the fluid within the tank and compare it with the estimated pressure. The controller is also configured to determine the health status of the tank and to actuate one or more of an operator console display unit and the hydraulic actuator.

公开(公告)号：US09556887B2

公开(公告)日：2017-01-31

申请号：US14534611

申请日：2014-11-06

Applicant: Caterpillar Inc.

Inventor： Richard Andrew Carpenter

IPC: F15B19/00 ,  B60T17/22 ,  B60T13/66

CPC classification number: F15B19/005 ,  B60T13/662 ,  B60T17/22 ,  F15B2201/51 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/857

Abstract: A method for estimating health and remaining useful life of a hydraulic element of a machine is provided. The method includes determining a charge time of a hydraulic accumulator coupled to the hydraulic element in which a current pressure of a hydraulic fluid in the hydraulic accumulator reaches an upper threshold pressure, the current pressure being measured by a hydraulic accumulator pressure sensor coupled to the processor and the hydraulic accumulator. The method includes determining a discharging flow rate of the hydraulic element based upon the determined charge time of the hydraulic accumulator, a health indicator of the hydraulic element based upon a difference between the discharging flow rate and a stored discharging flow rate. The method includes determining a remaining useful life of the hydraulic element based upon the health indicator of the hydraulic element.

Abstract translation: 提供了一种用于估计机器的液压元件的健康和剩余使用寿命的方法。 该方法包括确定耦合到液压元件的液压蓄能器的充电时间，其中液压蓄能器中的液压流体的当前压力达到上限阈值压力，当前压力由耦合到处理器的液压蓄能器压力传感器 和液压蓄能器。 该方法包括基于液压蓄能器的确定的充电时间，基于排出流量与存储的排出流量之间的差异来确定液压元件的健康指示器来确定液压元件的排出流量。 该方法包括基于液压元件的健康指示器确定液压元件的剩余使用寿命。

公开(公告)号：US20160116392A1

公开(公告)日：2016-04-28

申请号：US14523086

申请日：2014-10-24

Applicant: Caterpillar Inc.

Inventor： Richard Andrew Carpenter ,  Patrick Opdenbosch

IPC: G01N15/08 ,  B01D35/143

CPC classification number: B01D35/143 ,  B01D46/0086 ,  B01D2201/54 ,  G01N2015/084

Abstract: A method for estimating a remaining useful life of a filter is provided. The method includes determining, at a processor of a machine, a scaled delta pressure of the filter in the machine based on an input from a plurality of sensors. The method includes determining a plugging parameter of the filter based upon a non-linear relationship between the scaled delta pressure and the plugging parameter of the filter. The method includes estimating the remaining useful life of the filter at a time instant based upon a contamination rate estimate, the contamination rate estimate being determined based upon the determined plugging parameter. The method includes controlling, using a signal, a flow of a fluid entering the filter based on the plugging parameter, and outputting the estimated remaining useful life of the filter on a display.

Abstract translation: 提供了一种用于估计滤波器的剩余使用寿命的方法。 该方法包括在机器的处理器处基于来自多个传感器的输入来确定机器中的过滤器的缩放的增量压力。 该方法包括基于缩放的增量压力和滤波器的插入参数之间的非线性关系来确定滤波器的插入参数。 该方法包括基于污染率估计在时间估计滤波器的剩余使用寿命，基于所确定的插入参数来确定污染率估计。 该方法包括基于插入参数控制进入滤波器的流体的信号，并将滤波器的估计剩余使用寿命输出到显示器上。

公开(公告)号：US20190063474A1

公开(公告)日：2019-02-28

申请号：US15690389

申请日：2017-08-30

Applicant: Caterpillar Inc.

Inventor： Jason Brinkman ,  Richard Andrew Carpenter

IPC: F15B19/00 ,  G06G5/00

CPC classification number: F15B19/005 ,  F15B1/26 ,  G06G5/00

Abstract: A system for determining a health status of a tank is provided. The system includes a temperature sensor, a pressure sensor, a sensor coupled to a hydraulic actuator, a breather valve, and a controller. The controller is configured to receive a signal indicative of a temperature and a volume of a fluid within the tank from the temperature sensor and the sensor coupled to the hydraulic actuator respectively. The controller is configured to determine an estimated pressure of the fluid within the tank based on the received signals and a breather performance curve. The controller is configured to receive a signal indicative of a pressure of the fluid within the tank and compare it with the estimated pressure. The controller is also configured to determine the health status of the tank and to actuate one or more of an operator console display unit and the hydraulic actuator.

公开(公告)号：US09752956B2

公开(公告)日：2017-09-05

申请号：US14642652

申请日：2015-03-09

Applicant: Caterpillar Inc.

Inventor： Marvin Grendel McKimpson ,  Richard Andrew Carpenter

IPC: G01M13/02 ,  G01N33/28 ,  G01N15/06 ,  G01N3/56 ,  G01N15/02 ,  G01N15/00

CPC classification number: G01M13/021 ,  G01N3/56 ,  G01N15/02 ,  G01N15/06 ,  G01N33/2858 ,  G01N33/2888 ,  G01N2015/0053

Abstract: A monitoring system for a gearbox containing a lubricant is disclosed. The monitoring system may include a first sensor configured to measure a concentration of debris particles in the lubricant, a second sensor configured to generate data indicative of a deterioration of the gearbox, and a controller in communication with the first and second sensors. The controller may be configured to estimate a concentration of debris particles in the lubricant based on the data from the second sensor using a mathematical function, and estimate a remaining useful life of the gearbox based on a difference between concentration of debris particles measured by the first sensor and concentration of debris particles estimated to be in the lubricant.

公开(公告)号：US09732838B2

公开(公告)日：2017-08-15

申请号：US14861150

申请日：2015-09-22

Applicant: Caterpillar Inc.

Inventor： Marvin Grendel McKimpson ,  Richard Andrew Carpenter

IPC: G01M17/00 ,  F16H57/01 ,  F16H57/04 ,  G01N33/28 ,  G05B23/02 ,  F03D17/00

CPC classification number: F16H57/01 ,  F03D17/00 ,  F16H57/0405 ,  F16H2057/012 ,  G01N33/2888 ,  G05B23/0283

Abstract: A monitoring system for a gearbox having at least one rotational component having a design lifetime and at least one design parameter is disclosed. The monitoring system may include a first sensor configured to generate a first signal indicative of a speed associated with the at least one rotational component, a second sensor configured to generate a second signal indicative of a torque associated with the rotational component, and a controller electronically connected to the first and second sensors. The controller may be configured to determine a remaining lifetime of the at least one rotational component based on the design lifetime, the at least one design parameter, and the first and second signals over a period of operating time, and generate a maintenance signal based on the remaining lifetime.

公开(公告)号：US20160131164A1

公开(公告)日：2016-05-12

申请号：US14534611

申请日：2014-11-06

Applicant: Caterpillar Inc.

Inventor： Richard Andrew Carpenter

IPC: F15B19/00 ,  F15B15/14

CPC classification number: F15B19/005 ,  B60T13/662 ,  B60T17/22 ,  F15B2201/51 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/857

Abstract: A method for estimating health and remaining useful life of a hydraulic element of a machine is provided. The method includes determining a charge time of a hydraulic accumulator coupled to the hydraulic element in which a current pressure of a hydraulic fluid in the hydraulic accumulator reaches an upper threshold pressure, the current pressure being measured by a hydraulic accumulator pressure sensor coupled to the processor and the hydraulic accumulator. The method includes determining a discharging flow rate of the hydraulic element based upon the determined charge time of the hydraulic accumulator, a health indicator of the hydraulic element based upon a difference between the discharging flow rate and a stored discharging flow rate. The method includes determining a remaining useful life of the hydraulic element based upon the health indicator of the hydraulic element.

Abstract translation: 提供了一种用于估计机器的液压元件的健康和剩余使用寿命的方法。 该方法包括确定耦合到液压元件的液压蓄能器的充电时间，其中液压蓄能器中的液压流体的当前压力达到上限阈值压力，当前压力由耦合到处理器的液压蓄能器压力传感器 和液压蓄能器。 该方法包括基于液压蓄能器的确定的充电时间，基于排出流量与存储的排出流量之间的差异来确定液压元件的健康指示器来确定液压元件的排出流量。 该方法包括基于液压元件的健康指示器确定液压元件的剩余使用寿命。