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Patent Agency Ranking
公开(公告)号：US10202975B2
公开(公告)日：2019-02-12
申请号：US15250078
申请日：2016-08-29
Applicant: Caterpillar Inc.
Inventor： Nathaniel Steven Doy
IPC: F04B51/00
Abstract: A method for determining cavitation in a pump is disclosed. The method includes detecting, by a sensor, a pressure of a fluid pumped by the pump and determining, by a controller, whether the pressure exceeds a pressure range. Cavitation is determined when the pressure exceeds the pressure range. The method includes selectively incrementing or decrementing, by the controller, a counter value of a counter based on determining whether the pressure exceeds the pressure range. The counter value is incremented when the pressure exceeds the pressure range, and decremented when the pressure does not exceed the pressure range. The method includes determining, by the controller, whether the counter value exceeds a threshold value, and generating, by the controller, an alert when the counter value exceeds the threshold value and causing, by the controller, the alert to be displayed via a display.
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公开(公告)号：US09593461B2
公开(公告)日：2017-03-14
申请号：US14280875
申请日：2014-05-19
Applicant: Caterpillar Inc.
Inventor： Joseph Leo Faivre , Nathaniel Steven Doy
CPC classification number: E02F3/844 , E02F3/7618 , E02F9/2221 , E02F9/2278 , F15B2211/3059 , F15B2211/6336 , F15B2211/7107 , F15B2211/782
Abstract: A control system for a machine is disclosed. The control system may have a first cylinder operatively connected between a first side of a work tool and an undercarriage of the machine, a second cylinder operatively connected between a second side of the work tool and the undercarriage of the machine, and one or more electro-hydraulic valves configured to selectively regulate flow of pressurized fluid to the cylinders. The control system may also have a controller configured to determine a difference between a desired pitch of the work tool and an actual pitch of the work tool, and compare the difference to a threshold value. The controller may also be configured to move the one or more electro-hydraulic valves to change the flow of pressurized fluid to at least one of the first and second cylinders to adjust the actual pitch of the work tool to the desired pitch, based on the comparison.
Abstract translation: 公开了一种用于机器的控制系统。 控制系统可以具有操作地连接在工作工具的第一侧和机器的底架之间的第一气缸，可操作地连接在工作工具的第二侧和机器的底架之间的第二气缸，以及一个或多个电 液压阀构造成选择性地调节加压流体到气缸的流动。 控制系统还可以具有控制器，其被配置为确定作业工具的期望间距与作业工具的实际间距之间的差异，并且将该差与阈值进行比较。 控制器还可以被配置为移动一个或多个电动液压阀，以将加压流体的流量改变到第一和第二气缸中的至少一个，以将工作工具的实际俯仰调整到所需的间距，基于 比较。
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公开(公告)号：US20240360633A1
公开(公告)日：2024-10-31
申请号：US18141161
申请日：2023-04-28
Applicant: Caterpillar Inc.
Inventor： Paul Russell FRIEND , Mark Andrew Tarvin , Nathaniel Steven Doy , Robert Jason McGee , Joel Case Miller
CPC classification number: E01C19/004 , E01C19/282 , E02F9/2045
Abstract: A control system for a construction machine is disclosed. The control system may comprise a controller configured to: receive work parameters associated with working of the worksite surface by a surface-working member; generate an edge-to-edge work plan of the worksite surface, the edge-to-edge work plan comprising a plurality of paths each having a center-line-of-travel, wherein one of the plurality of paths includes a first outer edge defined by a first boundary side and another includes a second outer edge defined by a second boundary side; and activate the construction machine to traverse the center-line-of travel of each of the plurality of paths. The plurality of paths may comprise a first path and a second path that includes a second path overlap-section that overlaps the first path, wherein a width of the second path overlap-section varies along a length of the second path.
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公开(公告)号：US20180058443A1
公开(公告)日：2018-03-01
申请号：US15250078
申请日：2016-08-29
Applicant: Caterpillar Inc.
Inventor： Nathaniel Steven Doy
IPC: F04B51/00
CPC classification number: F04B51/00 , F04B2205/05 , F04B2205/503
Abstract: A method for determining cavitation in a pump is disclosed. The method includes detecting, by a sensor, a pressure of a fluid pumped by the pump and determining, by a controller, whether the pressure exceeds a pressure range. Cavitation is determined when the pressure exceeds the pressure range. The method includes selectively incrementing or decrementing, by the controller, a counter value of a counter based on determining whether the pressure exceeds the pressure range. The counter value is incremented when the pressure exceeds the pressure range, and decremented when the pressure does not exceed the pressure range. The method includes determining, by the controller, whether the counter value exceeds a threshold value, and generating, by the controller, an alert when the counter value exceeds the threshold value and causing, by the controller, the alert to be displayed via a display.
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公开(公告)号：US20150330057A1
公开(公告)日：2015-11-19
申请号：US14280875
申请日：2014-05-19
Applicant: Caterpillar Inc.
Inventor： Joseph Leo Faivre , Nathaniel Steven Doy
IPC: E02F9/22
CPC classification number: E02F3/844 , E02F3/7618 , E02F9/2221 , E02F9/2278 , F15B2211/3059 , F15B2211/6336 , F15B2211/7107 , F15B2211/782
Abstract: A control system for a machine is disclosed. The control system may have a first cylinder operatively connected between a first side of a work tool and an undercarriage of the machine, a second cylinder operatively connected between a second side of the work tool and the undercarriage of the machine, and one or more electro-hydraulic valves configured to selectively regulate flow of pressurized fluid to the cylinders. The control system may also have a controller configured to determine a difference between a desired pitch of the work tool and an actual pitch of the work tool, and compare the difference to a threshold value. The controller may also be configured to move the one or more electro-hydraulic valves to change the flow of pressurized fluid to at least one of the first and second cylinders to adjust the actual pitch of the work tool to the desired pitch, based on the comparison.
Abstract translation: 公开了一种用于机器的控制系统。 控制系统可以具有操作地连接在工作工具的第一侧和机器的底架之间的第一气缸，可操作地连接在工作工具的第二侧和机器的底架之间的第二气缸，以及一个或多个电 液压阀构造成选择性地调节加压流体到气缸的流动。 控制系统还可以具有控制器，其被配置为确定作业工具的期望间距与作业工具的实际间距之间的差异，并且将该差与阈值进行比较。 控制器还可以被配置为移动一个或多个电动液压阀，以将加压流体的流量改变到第一和第二气缸中的至少一个，以将工作工具的实际俯仰调整到所需的间距，基于 比较。
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