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公开(公告)号：US09683498B2
公开(公告)日：2017-06-20
申请号：US14716603
申请日：2015-05-19
Applicant: Caterpillar Inc.
Inventor： Urvish Joshi , Travis Barnes , Eric W. Cler , Anand KrishnamurthyGopalan , Eric A. Hutchison , Kirti Tamhane , Andrew N. Schifferer , Tyler Bowman , Kevin Sergott , Matthew Mowers , Daniel R. Puckett
CPC classification number: F02D41/0007 , F02B2037/125 , F02D31/001 , F02D41/0225 , F02D41/18 , Y02T10/144
Abstract: A method for operating an internal combustion engine includes monitoring engine parameters using an electronic controller, determining a surge speed limit for the engine based on a compressor map, determining an offset engine speed based on a margin between the surge speed limit and an engine speed, determining a minimum engine speed based on the margin, applying the offset engine speed to an engine speed signal to provide an adjusted engine speed, and applying the adjusted engine speed to a desired engine speed when a speed of the engine approaches the surge speed limit.
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公开(公告)号：US20250019924A1
公开(公告)日：2025-01-16
申请号：US18221715
申请日：2023-07-13
Applicant: Caterpillar Inc.
Inventor： Eric W. Cler
Abstract: A work machine includes a load bucket and operator controls for controlling position of the load bucket. The work machine can include an actuator assembly coupled to hold the load bucket in a position based upon signals from the operator controls. The actuator assembly can include a motor and a brake assembly. The brake assembly can include a non-spring-coupled brake and a spring-coupled brake. The work machine can further include control circuitry coupled to the actuator assembly to activate the spring-coupled brake responsive to detection that the non-spring-coupled brake is holding the load bucket stationary. The control circuitry can further control the motor to apply additional braking force upon detecting that a magnitude of oscillation of the work machine exceeds a threshold magnitude based on a damping coefficient of the spring-coupled brake.
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公开(公告)号：US20240070934A1
公开(公告)日：2024-02-29
申请号：US17823110
申请日：2022-08-30
Applicant: Caterpillar Inc.
Inventor： Shaun David Currier , Aaron Robert Shatters , Eric W. Cler
CPC classification number: G06T11/001 , E02F9/26 , G05D1/0038 , G07C5/008 , E02F9/02
Abstract: A system for communicating slippage experienced by at least one traction device of a work machine, to a remote operator interface for controlling the work machine through the remote operator interface is described. The system includes a controller configured to receive data associated with a speed of the at least one traction device of the work machine and determine a slippage condition of the at least one traction device based on the data. The controller is further configured to activate a visual overlay over a virtual image, of the at least one traction device, displayed in a video feed to represent the slippage condition on the remote operator interface. The video feed is a real-time video feed, indicating one or more operations of the work machine, displayed on the remote operator interface.
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公开(公告)号：US09938692B2
公开(公告)日：2018-04-10
申请号：US14986843
申请日：2016-01-04
Applicant: Caterpillar Inc.
Inventor： Aaron R. Shatters , Eric W. Cler
CPC classification number: E02F9/26 , E02F3/283 , E02F3/422 , E02F9/2203 , E02F9/264 , G01G19/083
Abstract: A payload weight of a load of material carried by an implement of a machine may be estimated taking into account angular acceleration of the payload. A lift cylinder pressure differential and a lift arm angular acceleration may be determined as the implement is raised through a weigh range. An angular acceleration compensation factor may be determined from the lift arm angular acceleration, and a compensated differential pressure may be calculated by multiplying the lift cylinder pressure differential by the angular acceleration compensation factor. The estimated payload weight may then be determined based on the compensated pressure differential and a head end cross-sectional area of the lift cylinder.
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公开(公告)号：US20170097881A1
公开(公告)日：2017-04-06
申请号：US15237698
申请日：2016-08-16
Applicant: Caterpillar Inc.
Inventor： Benjamin J. Hodel , Aaron R. Shatters , Eric W. Cler , Vishnu Suganth Prabhakaran
CPC classification number: G06F11/3672 , G06F8/65 , G06F9/452
Abstract: A method for operating a machine using a mobile device is provided. The method includes connecting wirelessly, by a mobile device processor, a mobile device to an electronic controller unit of a machine; receiving, at the mobile device processor, machine data for machine parameters associated with the machine from the electronic controller unit, the machine data being in a machine data structure; applying, at the mobile device processor, a constraint to the machine data in response to a query received at the mobile device processor; generating, at the mobile device processor, result data in a mobile device data structure based upon the constraint applied to the machine data; and modifying, by the mobile device processor, an operation of the machine based upon the result data.
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Patent Agency Ranking
公开(公告)号：US09551131B2
公开(公告)日：2017-01-24
申请号：US14617213
申请日：2015-02-09
Applicant: Caterpillar Inc.
Inventor： Sairam Gopalan Velamakanni , Eric W. Cler , Aaron Josiah Meyer
CPC classification number: E02F9/2066 , B60W10/06 , E02F9/2246 , F02D11/105 , F02D31/007 , F02D41/021 , F02D41/022 , F02D2250/18
Abstract: A power system is disclosed for use with a mobile machine having a work tool. The power system may have an engine, a first input device configured to generate a first signal indicative of an operator-desired output of the engine, a second input device configured to generate a second signal indicative of an operator-desired movement of the work tool, and a controller in communication with the engine, the first input device, and the second input device. The controller may be configured to adjust fueling of the engine based on the first signal and based on a desired speed of the engine during a first mode of operation, and to adjust fueling of the engine based on the first signal and a desired torque of the mobile machine during a second mode of operation. The controller may be further configured to selectively switch operation of the machine between the first and second modes based on the second signal.
Abstract translation: 公开了一种与具有工作工具的移动机器一起使用的电力系统。 电力系统可以具有发动机，第一输入装置被配置为产生指示发动机的操作者期望输出的第一信号;第二输入装置，被配置为产生指示操作者期望的作业工具运动的第二信号 以及与发动机，第一输入装置和第二输入装置通信的控制器。 控制器可以被配置为基于第一信号并且基于在第一操作模式期间的发动机的期望速度来调节发动机的燃料供应，并且基于第一信号和期望的扭矩来调节发动机的燃料供应 移动机在第二种操作模式下运行。 控制器还可以被配置为基于第二信号有选择地在第一和第二模式之间切换机器的操作。
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公开(公告)号：US12141895B2
公开(公告)日：2024-11-12
申请号：US17823110
申请日：2022-08-30
Applicant: Caterpillar Inc.
Inventor： Shaun David Currier , Aaron Robert Shatters , Eric W. Cler
Abstract: A system for communicating slippage experienced by at least one traction device of a work machine, to a remote operator interface for controlling the work machine through the remote operator interface is described. The system includes a controller configured to receive data associated with a speed of the at least one traction device of the work machine and determine a slippage condition of the at least one traction device based on the data. The controller is further configured to activate a visual overlay over a virtual image, of the at least one traction device, displayed in a video feed to represent the slippage condition on the remote operator interface. The video feed is a real-time video feed, indicating one or more operations of the work machine, displayed on the remote operator interface.
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公开(公告)号：US11708681B2
公开(公告)日：2023-07-25
申请号：US17229489
申请日：2021-04-13
Applicant: Caterpillar Inc.
Inventor： Shaun D. Currier , Eric W. Cler
CPC classification number: E02F3/42 , E02F3/434 , E02F9/2271
Abstract: A wheel loader machine includes a bucket configured to hold a predetermined load of a granular or powder material, a hydraulic system having an electro-hydraulic actuator to move the bucket over tilt angles and to shake the bucket, a hydraulic sensor configured to detect hydraulic pressure, an interface configured to receive input parameters and to output status information of the bucket, and a controller. The input parameters including a target weight of the granular or powder material. The status information including weight of the granular or powder material in the bucket determined using the detected hydraulic pressure. The controller configured to control the hydraulic system to tilt the bucket to a predetermined tilt angle and to shake the bucket in accordance with an agitation pattern until the weight of the granular or powder in the bucket is at or below the target weight of the granular or powder material.
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公开(公告)号：US20170113591A1
公开(公告)日：2017-04-27
申请号：US14923707
申请日：2015-10-27
Applicant: Caterpillar Inc.
Inventor： Michael A. Spielman, JR. , Eric W. Cler , Aaron R. Shatters
CPC classification number: E02F9/265
Abstract: A system for controlling a movement of an implement during a dump operation is provided. The system includes a payload detection module associated with the implement. The payload detection module is configured to generate a signal indicative of a current weight of payload in the implement. The payload detection module determines the current weight of payload during a controlled lifting motion of the implement. The system also includes a control module communicably coupled to the payload detection module.
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公开(公告)号：US20230359209A1
公开(公告)日：2023-11-09
申请号：US17737370
申请日：2022-05-05
Applicant: CATERPILLAR INC.
Inventor： Aaron Robert Shatters , Eric W. Cler
CPC classification number: G05D1/0214 , G05D1/0223 , G05D1/0094 , G05D2201/0202
Abstract: The real time state and stability of a machine are determined and the future stability of the machine is predicted based on different potential machine operations. Sensor inputs including machine speed and acceleration, lift height of a payload, an articulation angle of the machine, a position of the machine, a pitch angle and a roll angle of the machine are used to generate a model for estimating a time series of real time and future values for the degree of stability of the machine by solving a kinematic equation and inputting other machine operational parameters during a timestep of a series of timesteps based at least in part on an estimate of the location of the center of gravity of a first portion of the machine in combination with the payload carried by the machine relative to a predetermined point, and the location of the center of gravity of a second portion of the machine relative to the predetermined point in a subsequent timestep. Visible or audible indications of the machine's current degree of stability and hypothetical future degrees of stability at different potential states of the machine are output.
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