公开(公告)号：US11541713B2

公开(公告)日：2023-01-03

申请号：US17124752

申请日：2020-12-17

Applicant: ClearMotion, Inc.

Inventor： Joseph Thomas Belter ,  Clive Tucker ,  Marco Giovanardi ,  Jack A. Ekchian ,  Zackary Martin Anderson ,  John A. Laplante

IPC: B60G17/016 ,  B60G17/033 ,  B60G17/04 ,  B60G17/027 ,  B60G7/00

Abstract: Integrated multiple actuator electro-hydraulic systems as well as their methods of use are described. Depending on the particular application, the integrated electro-hydraulic systems may exhibit different frequency responses and/or may be integrated into a single combined unit.

公开(公告)号：US20220373003A1

公开(公告)日：2022-11-24

申请号：US17775567

申请日：2020-11-13

Applicant: ClearMotion, Inc.

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

IPC: F15B21/00

Abstract: Hydraulic systems and methods for reducing the propagation of flow and/or pressure pulsations within a hydraulic system are described. In one embodiment, a hydraulic system may include a hydraulic device and a differential buffer fluidly connected to the hydraulic device. The differential buffer may include a piston that is exposed to pressure pulsations that propagate along separate flow paths and that are at least partially out of phase with one another. Corresponding displacement of the piston due to the out of phase pulsations may at least partially mitigate propagation of the pulsations within the hydraulic system downstream from the differential buffer.

公开(公告)号：US11186135B2

公开(公告)日：2021-11-30

申请号：US16433479

申请日：2019-06-06

Applicant: ClearMotion, Inc.

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

IPC: B60G17/016 ,  H02K7/06 ,  H02P21/06 ,  B60G13/14 ,  B60G17/015 ,  B60G17/018 ,  B60G17/08 ,  B60G99/00 ,  F16F9/32 ,  F16F9/46 ,  F16F9/06

Abstract: A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes 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：US20210207597A1

公开(公告)日：2021-07-08

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

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：US20210172463A1

公开(公告)日：2021-06-10

申请号：US17078233

申请日：2020-10-23

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：US20200062067A1

公开(公告)日：2020-02-27

申请号：US16433479

申请日：2019-06-06

Applicant: ClearMotion, Inc.

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

IPC: B60G17/016 ,  H02K7/06 ,  H02P21/06 ,  B60G13/14 ,  B60G17/015 ,  B60G17/018 ,  B60G17/08 ,  B60G99/00 ,  F16F9/32 ,  F16F9/46 ,  F16F9/06

Abstract: A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes 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：US10513161B2

公开(公告)日：2019-12-24

申请号：US15833738

申请日：2017-12-06

Applicant: ClearMotion, Inc.

Inventor： Zackary Martin Anderson ,  Marco Giovanardi ,  Jack A. Ekchian ,  Olivia D. Godwin ,  Clive Tucker ,  John A. Laplante ,  William Graves ,  Shakeel Avadhany ,  Michael W. Finnegan

IPC: B60G17/016 ,  B60G17/015 ,  B60G17/06 ,  B60N2/50 ,  B60G17/0165 ,  B60G17/04 ,  B60G17/052 ,  B60G17/019 ,  A61B5/00 ,  B60N2/02

Abstract: In one embodiment, one or more suspension systems of a vehicle may be used to mitigate motion sickness by limiting motion in one or more frequency ranges. In another embodiment, an active suspension may be integrated with an autonomous vehicle architecture. In yet another embodiment, the active suspension system of a vehicle may be used to induce motion in a vehicle. The vehicle may be used as a testbed for technical investigations and/or as a platform to enhance the enjoyment of video and/or audio by vehicle occupants. In some embodiments, the active suspensions system may be used to perform gestures as a means of communication with persons inside or outside the vehicle. In some embodiments, the active suspensions system may be used to generate haptic warnings to a vehicle operator or other persons in response to certain road situations.

公开(公告)号：US10471798B2

公开(公告)日：2019-11-12

申请号：US15827126

申请日：2017-11-30

Applicant: ClearMotion, Inc.

Inventor： Clive Tucker ,  Zackary Martin Anderson ,  David Michael Lewis ,  Ross J. Wendell ,  Alexander Apostolos Alexandridis

IPC: B60G17/08 ,  B60G17/04 ,  F16F9/36

Abstract: An active suspension system is configured in a strut arrangement. The active suspension system comprises a hydraulic actuator and a hydraulic pump/electric motor assembly, wherein the actuator movement is preferably in lockstep with the hydraulic motor-pump and electric motor-generator combination. Torque in the electric motor is instantaneously controlled by a controller to create an immediate force change on the hydraulic actuator. The hydraulic actuator is configured so that it can be used as a strut whereby the actuator has sufficient structural rigidity to carry the applied suspension loads while capable of supplying damper forces in at least three quadrants of the force velocity graph of the suspension actuator operation. Embodiments disclosed include low cost active suspension systems for a MacPherson strut application.

公开(公告)号：US10377371B2

公开(公告)日：2019-08-13

申请号：US15300500

申请日：2015-04-01

Applicant: ClearMotion, Inc.

Inventor： Zackary Martin Anderson ,  Marco Giovanardi ,  Clive Tucker ,  Jack A. Ekchian

IPC: B60W30/02 ,  B60G17/0195 ,  B60G17/02 ,  B60W10/20 ,  B60W10/22 ,  B60W50/14

Abstract: In some embodiments, a rapid-response active suspension system controls suspension force and position for improving vehicle safety and drivability. The system may interface with various sensors that detect safety critical vehicle states and adjust the suspension of each wheel to improve safety. Pre-crash and collision sensors may notify the active suspension controller of a collision and the stance may be adjusted to improve occupant safety during an impact while maintaining active control of the wheels. Wheel forces may also be controlled to improve the effectiveness of vehicle safety systems such as ABS and ESP in order to improve traction. Also, bi-directional information may be communicated between the active suspension system and other vehicle safety systems such that each system may respond to information provided to the other.

公开(公告)号：US10350957B2

公开(公告)日：2019-07-16

申请号：US15432901

申请日：2017-02-14

Applicant: ClearMotion, Inc.

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

IPC: B60G17/016 ,  B60G13/14 ,  B60G17/015 ,  B60G17/018 ,  B60G17/08 ,  B60G99/00 ,  H02K7/06 ,  H02P21/06 ,  F16F9/32 ,  F16F9/46 ,  F16F9/06

Abstract: A method of on-demand energy delivery to an active suspension system is disclosed. The suspension system includes an actuator body, a hydraulic pump, an electric motor, a plurality of sensors, an energy storage facility, and a controller. The method includes 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.