公开(公告)号：US20200088214A1

公开(公告)日：2020-03-19

申请号：US16305121

申请日：2017-06-01

Applicant: ClearMotion, Inc.

Inventor： Nathan Woodard ,  Colin Patrick O'Shea ,  Hector Arnaldo Inirio

IPC: F15B7/00 ,  B60G17/0165

Abstract: Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working chamber and a contained chamber may be utilized to at least partially attenuate propagation of certain pulsations in the system. The working chamber may be fluidically coupled to the pump via a first flow path and fluidically coupled to a chamber of the actuator via a second flow path. The system may be designed such that a first inertance of the first flow path is greater than a second inertance of the second flow path. Additionally or alternatively, the system may be designed such that a resonance associated with the first inertance and a compliance of the accumulator may occur at a resonance frequency of less than 90 Hz.

公开(公告)号：US20170182859A1

公开(公告)日：2017-06-29

申请号：US15432907

申请日：2017-02-14

Applicant: ClearMotion, Inc.

Inventor： Zackary Martin Anderson ,  Shakeel Avadhany ,  Matthew D. Cole ,  Robert Driscoll ,  John Giarratana ,  Marco Giovanardi ,  Vladimir Gorelik ,  Jonathan R. Leehey ,  William G. Near ,  Patrick W. Neil ,  Colin Patrick O'Shea ,  Tyson David Sawyer ,  Johannes Schneider ,  Clive Tucker ,  Ross J. Wendell ,  Richard Anthony Zuckerman

IPC: B60G17/052

CPC classification number: B60G17/052 ,  B60G13/14 ,  B60G17/019 ,  B60G2202/413 ,  B60G2300/60 ,  B60G2600/182 ,  B60G2800/012 ,  F03G7/08

Abstract: A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

公开(公告)号：US11879451B2

公开(公告)日：2024-01-23

申请号：US17198584

申请日：2021-03-11

Applicant: ClearMotion, Inc.

Inventor： Colin Patrick O'Shea ,  Clive Tucker ,  Brian Alexander Selden

IPC: F04B49/06 ,  F04B49/10 ,  F04B49/20 ,  F04C28/08

CPC classification number: F04B49/065 ,  F04B49/103 ,  F04B49/20 ,  F04B2201/0201 ,  F04B2201/0208 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0207 ,  F04C28/08

Abstract: Presented herein are systems and methods for attenuating flow ripple generated by a hydraulic pump. In certain aspects, a method and system for operating a hydraulic positive displacement pump according to a stabilized command profile are disclosed, such that flow ripple generated by operation of the pump according to the stabilized command profile is attenuated as compared to operation of the pump according to a corresponding nominal command profile. In other aspects, a pressure-balanced active buffer is disclosed that allow for at least partially cancelling flow ripple in a hydraulic circuit comprising a pump. In another aspect, a method for generating ripple maps for a pump is disclosed. Such ripple maps may be used, for example, to determine the stabilized command profile used to operate the pump, or may be used by the pressure-balanced active buffer to counteract ripple in the hydraulic circuit.

公开(公告)号：US11480199B2

公开(公告)日：2022-10-25

申请号：US16305121

申请日：2017-06-01

Applicant: ClearMotion, Inc.

Inventor： Nathan Woodard ,  Colin Patrick O'Shea ,  Hector Arnaldo Inirio

IPC: B60G17/0165 ,  F15B7/00 ,  F04B11/00 ,  F04B49/06 ,  F15B1/24

Abstract: Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working chamber and a contained chamber may be utilized to at least partially attenuate propagation of certain pulsations in the system. The working chamber may be fluidically coupled to the pump via a first flow path and fluidically coupled to a chamber of the actuator via a second flow path. The system may be designed such that a first inertance of the first flow path is greater than a second inertance of the second flow path. Additionally or alternatively, the system may be designed such that a resonance associated with the first inertance and a compliance of the accumulator may occur at a resonance frequency of less than 90 Hz.

公开(公告)号：US10851816B1

公开(公告)日：2020-12-01

申请号：US16001804

申请日：2018-06-06

Applicant: ClearMotion, Inc.

Inventor： Clive Tucker ,  Johannes Schneider ,  John Giarratana ,  William G. Near ,  Colin Patrick O'Shea ,  Tyson David Sawyer ,  Richard Anthony Zuckerman ,  Zackary Martin Anderson ,  Marco Giovanardi ,  Jack A. Ekchian

IPC: F15B21/00 ,  F04B49/10 ,  F04B49/06 ,  F04B49/20

Abstract: Method and apparatus for improving the performance, response, and durability of an electro-hydraulic active suspension system. The noise caused by hydraulic flow ripple is reduced and system response is improved.

公开(公告)号：US20180297432A1

公开(公告)日：2018-10-18

申请号：US16017980

申请日：2018-06-25

Applicant: ClearMotion, Inc.

Inventor： Marco Giovanardi ,  Clive Tucker ,  Ross J. Wendell ,  Zackary Martin Anderson ,  Colin Patrick O'Shea ,  Vladimir Gorelik ,  Tyson David Sawyer ,  Jonathan R. Leehey ,  Johannes Schneider ,  Robert Driscoll ,  Patrick W. Neil ,  Shakeel Avadhany

IPC: B60G17/016 ,  F16K31/12 ,  F16K11/065

CPC classification number: B60G17/016 ,  B60G15/10 ,  B60G2202/413 ,  B60G2204/11 ,  B60G2400/0511 ,  B60G2400/0521 ,  B60G2400/60 ,  B60G2800/70 ,  F04B49/20 ,  F15B13/0444 ,  F16K11/065 ,  F16K31/12

Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.

公开(公告)号：US12179539B2

公开(公告)日：2024-12-31

申请号：US18491335

申请日：2023-10-20

Applicant: ClearMotion, Inc.

Inventor： Zackary Martin Anderson ,  Shakeel Avadhany ,  Matthew D. Cole ,  Robert Driscoll ,  John Giarratana ,  Marco Giovanardi ,  Vladimir Gorelik ,  Jonathan R. Leehey ,  William G. Near ,  Patrick W. Neil ,  Colin Patrick O'Shea ,  Tyson David Sawyer ,  Johannes Schneider ,  Clive Tucker ,  Ross J. Wendell ,  Richard Anthony Zuckerman

IPC: B60G17/052 ,  B60G13/14 ,  B60G17/019 ,  F03G7/08

Abstract: A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

公开(公告)号：US20240300275A1

公开(公告)日：2024-09-12

申请号：US18491335

申请日：2023-10-20

Applicant: ClearMotion, Inc.

Inventor： ZACKARY MARTIN ANDERSON ,  Shakeel Avadhany ,  Matthew D. Cole ,  Robert Driscoll ,  John Giarratana ,  Marco Giovanardi ,  Vladimir Gorelik ,  Jonathan R. Leehey ,  William G. Near ,  Patrick W. Neil ,  Colin Patrick O'Shea ,  Tyson David Sawyer ,  Johannes Schneider ,  Clive Tucker ,  Ross J. Wendell ,  Richard Anthony Zuckerman

IPC: B60G17/052 ,  B60G13/14 ,  B60G17/019 ,  F03G7/08

CPC classification number: B60G17/052 ,  B60G13/14 ,  B60G17/019 ,  F03G7/08 ,  B60G2202/413 ,  B60G2300/06 ,  B60G2300/60 ,  B60G2600/182 ,  B60G2800/012

Abstract: A method of on-demand energy delivery to an active suspension system comprising an actuator body, hydraulic pump, electric motor, plurality of sensors, energy storage facility, and controller is provided. The method comprises disposing an active suspension system in a vehicle between a wheel mount and a vehicle body, detecting a wheel event requiring control of the active suspension; and sourcing energy from the energy storage facility and delivering it to the electric motor in response to the wheel event.

公开(公告)号：US11815110B2

公开(公告)日：2023-11-14

申请号：US17942352

申请日：2022-09-12

Applicant: ClearMotion, Inc.

Inventor： Nathan Woodard ,  Colin Patrick O'Shea ,  Hector Arnaldo Inirio

IPC: F15B1/24 ,  F15B7/00 ,  B60G17/0165 ,  F04B11/00 ,  F04B49/06

CPC classification number: F15B7/006 ,  B60G17/0165 ,  B60G2202/154 ,  B60G2202/413 ,  B60G2202/416 ,  F04B11/0016 ,  F04B49/065 ,  F15B1/24 ,  F15B2211/20515 ,  F15B2211/20561 ,  F15B2211/27 ,  F15B2211/625 ,  F15B2211/8616

Abstract: Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working chamber and a contained chamber may be utilized to at least partially attenuate propagation of certain pulsations in the system. The working chamber may be fluidically coupled to the pump via a first flow path and fluidically coupled to a chamber of the actuator via a second flow path. The system may be designed such that a first inertance of the first flow path is greater than a second inertance of the second flow path. Additionally or alternatively, the system may be designed such that a resonance associated with the first inertance and a compliance of the accumulator may occur at a resonance frequency of less than 90 Hz.

公开(公告)号：US20230220853A1

公开(公告)日：2023-07-13

申请号：US17942352

申请日：2022-09-12

Applicant: ClearMotion, Inc.

Inventor： Nathan Woodard ,  Colin Patrick O'Shea ,  Hector Arnaldo Inirio

IPC: F15B7/00 ,  B60G17/0165 ,  F15B1/24 ,  F04B11/00 ,  F04B49/06

CPC classification number: F15B7/006 ,  B60G17/0165 ,  F15B2211/27 ,  B60G2202/154 ,  B60G2202/416 ,  F15B1/24 ,  F15B2211/8616 ,  F04B11/0016 ,  F15B2211/20515 ,  F15B2211/20561 ,  B60G2202/413 ,  F15B2211/625 ,  F04B49/065

Abstract: Presented herein are systems and methods for attenuating certain pulsations in a hydraulic system comprising a pump and a hydraulic actuator. In certain aspects, an accumulator comprising an internal volume that is divided into a working chamber and a contained chamber may be utilized to at least partially attenuate propagation of certain pulsations in the system. The working chamber may be fluidically coupled to the pump via a first flow path and fluidically coupled to a chamber of the actuator via a second flow path. The system may be designed such that a first inertance of the first flow path is greater than a second inertance of the second flow path. Additionally or alternatively, the system may be designed such that a resonance associated with the first inertance and a compliance of the accumulator may occur at a resonance frequency of less than 90 Hz.