Clearmotion, Inc.

William G Near

Marco Giovanardi

Clive Tucker

Zackary Martin Anderson

Tyson David Sawyer

Johannes Schneider

Colin Patrick O'Shea

Richard Anthony Zuckerman

John Giarratana

Jonathan Robert Leehey

Vladimir Gorelik

Matthew D Cole

Ross J Wendell

Patrick W Neil

Shakeel Avadhany

Robert Driscoll

Jack A Ekchian

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.

Active vehicle suspension system

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.

Apparatus and method for active vehicle suspension

Gerotor pump with bearing

A distributed active suspension control system is provided. The control system is based on a distributed, processor-based controller that is coupled to an electronic suspension actuator. The controller processes sensor data at the distributed node, making processing decisions for the wheel actuator it is associated with. Concurrently, multiple distributed controllers on a common network communicate such that vehicle-level control (such as roll mitigation) may be achieved. Local processing at the distributed controller has the advantage of reducing latency and response time to localized sensing and events, while also reducing the processing load and cost requirements of a central node. The topology of the distributed active suspension controller contained herein has been designed to respond to fault modes with fault-safe mechanisms that prevent node-level failure from propagating to system-level fault. Systems, algorithms, and methods for accomplishing this distributed and fault-safe processing are disclosed.

Distributed active suspension control system

Growing community of inventors

Boston, MA, United States of America

William G Near