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Title:
【発明の名称】回転-作動ブレ-キを含み界磁応答媒体を有する可制御空気装置及びその制御方法
Document Type and Number:
Japanese Patent JP2002539380
Kind Code:
A
Abstract:
A controllable pneumatic actuator and motion control apparatus including a field responsive medium and control method therefor. The apparatus has a pneumatic actuator coupled to a rotary-acting brake such that a motion (e.g., a displacement, velocity or acceleration) of an output member may be precisely controlled. The pneumatic actuator has a housing with a piston moveable responsive to a pressure differentials and an output member coupled to the piston. The rotary-acting controllable brake includes a field responsive medium and a brake shaft coupled to the output member. Preferably, the apparatus includes a control system having a sensor for deriving motion signal and a motion control for processing the motion signal and providing a control signal to the brake. The apparatus preferably also includes a pressure supply providing a supply of pressurized gas, a pneumatic control controlling a pneumatic control valve for apportioning the pressurized gas and providing differential pneumatic pressure to move the piston. A preferable control method implements motion control based upon the kinetic energy and the braking force in the system.

Inventors:
Jolly, Mark Earl
Application Number:
JP2000604133A
Publication Date:
November 19, 2002
Filing Date:
March 02, 2000
Export Citation:
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Assignee:
Road corporation
International Classes:
F15B15/06; F15B15/26; F15B21/08; F16D55/00; F16D57/00; F16D63/00; F16H25/20; (IPC1-7): F15B15/26; F15B15/06; F16D57/00; F16D63/00; F16H25/20
Attorney, Agent or Firm:
Warren G. Simor