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公开(公告)号：US11619026B2
公开(公告)日：2023-04-04
申请号：US16591034
申请日：2019-10-02
Applicant: Caterpillar Inc.
Inventor： Richard Lane Fulcher , Timothy A. Evans , Travis N. Richards , Yongtao Li
Abstract: A motor grader having ride control for dampening machine bounce using a DCM assembly rotatably coupled to and suspended from a frame of the motor grader is disclosed. Each lift cylinder for the DCM may have an associated ride control circuit with an accumulator, a ride control conduit fluidly connected to a carry end of the lift cylinder and having a flow restriction element, and a ride control accumulator valve fluidly connected to the accumulator and the ride control conduit and operable to either block or allow fluid communication between the carry end and the accumulator through the flow restriction element. Each rid control circuit may also include a head end valve fluidly connected to between the head end of the lift cylinder and a low pressure fluid reservoir and operable to block or allow fluid communication between the head end and the low pressure fluid reservoir.
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公开(公告)号：US20180320340A1
公开(公告)日：2018-11-08
申请号：US15588190
申请日：2017-05-05
Applicant: Caterpillar Inc.
Inventor： Timothy A. Evans
Abstract: A machine orientation display may be displayed by an operator display device in an operator station of a machine. The machine orientation display may include a field area, a horizontal reference displayed on the field area, a machine orientation indicator displayed on the field area and positioned and oriented relative to the horizontal reference to graphically indicate a machine orientation of the machine relative to a work surface on which the machine is disposed. The machine orientation display may further include an implement orientation indicator displayed on the field area and positioned and oriented relative to the horizontal reference and the machine orientation indicator to graphically indicate an implement orientation of an implement of the machine. The implement is movable relative to a machine body of the machine and to the work surface.
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Patent Agency Ranking
公开(公告)号：US20240391526A1
公开(公告)日：2024-11-28
申请号：US18322925
申请日：2023-05-24
Applicant: Caterpillar Inc.
Inventor： Ethan M. Tevis , Michael C. Gentle , Timothy A. Evans
Abstract: A system for determining a total machine turning angle of a construction equipment having a front frame articulatable with respect to a rear frame, the front frame including a steering apparatus and the rear frame including a traction device, the construction equipment having a wheelbase, the system including: a first inertial motion unit disposed on the front frame or the rear frame, the first inertial motion unit providing a front frame yaw rate if disposed on the front frame or a rear frame yaw rate if disposed on the rear frame; a machine speed sensor providing a machine speed of the construction equipment; and a controller for receiving as inputs the wheelbase, machine speed, and either the front frame yaw rate or the rear frame yaw rate, and outputting the total machine turning angle based on the wheelbase, the machine speed, and either the front or rear frame yaw rate.
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公开(公告)号：US20210102358A1
公开(公告)日：2021-04-08
申请号：US16591034
申请日：2019-10-02
Applicant: Caterpillar Inc.
Inventor： Richard Lane Fulcher , Timothy A. Evans , Travis N. Richards , Yongtao Li
Abstract: A motor grader having ride control for dampening machine bounce using a DCM assembly rotatably coupled to and suspended from a frame of the motor grader is disclosed. Each lift cylinder for the DCM may have an associated ride control circuit with an accumulator, a ride control conduit fluidly connected to a carry end of the lift cylinder and having a flow restriction element, and a ride control accumulator valve fluidly connected to the accumulator and the ride control conduit and operable to either block or allow fluid communication between the carry end and the accumulator through the flow restriction element. Each rid control circuit may also include a head end valve fluidly connected to between the head end of the lift cylinder and a low pressure fluid reservoir and operable to block or allow fluid communication between the head end and the low pressure fluid reservoir.
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公开(公告)号：US10544566B2
公开(公告)日：2020-01-28
申请号：US15588190
申请日：2017-05-05
Applicant: Caterpillar Inc.
Inventor： Timothy A. Evans
Abstract: A machine orientation display may be displayed by an operator display device in an operator station of a machine. The machine orientation display may include a field area, a horizontal reference displayed on the field area, a machine orientation indicator displayed on the field area and positioned and oriented relative to the horizontal reference to graphically indicate a machine orientation of the machine relative to a work surface on which the machine is disposed. The machine orientation display may further include an implement orientation indicator displayed on the field area and positioned and oriented relative to the horizontal reference and the machine orientation indicator to graphically indicate an implement orientation of an implement of the machine. The implement is movable relative to a machine body of the machine and to the work surface.
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公开(公告)号：US11046180B2
公开(公告)日：2021-06-29
申请号：US15970205
申请日：2018-05-03
Applicant: Caterpillar Inc.
Inventor： Randall T. Anderson , Timothy A. Evans
Abstract: A method, system, and machine for controlling the output of an engine of a machine includes calculating the difference between a measured track slip based on track speed and ground speed and a calculated target track slip depending on track speed and chassis pitch, inputting the difference into a controller to determine a propulsion engine torque limit, and limiting the engine toque to the propulsion engine torque limit plus a steering system input torque.
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公开(公告)号：US20190337386A1
公开(公告)日：2019-11-07
申请号：US15970205
申请日：2018-05-03
Applicant: Caterpillar Inc.
Inventor： Randall T. Anderson , Timothy A. Evans
Abstract: A method, system, and machine for controlling the output of an engine of a machine includes calculating the difference between a measured track slip based on track speed and ground speed and a calculated target track slip depending on track speed and chassis pitch, inputting the difference into a controller to determine a propulsion engine torque limit, and limiting the engine toque to the propulsion engine torque limit plus a steering system input torque.
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