F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 13/044 (2006.01) B60G 17/015 (2006.01) B60G 17/0165 (2006.01) B60G 17/052 (2006.01) B60N 2/16 (2006.01) B60N 2/52 (2006.01) F16F 15/027 (2006.01)
Patent
CA 2342088
An active suspension system for supporting a mass, such as a seat on a base of a vehicle includes a hydraulic actuator coupled between the seat and the base, an pneumatic off-load device between the seat and the base, and a control system which actively controls the hydraulic actuator and which controls the off-load member. The control system actively controls the hydraulic actuator as a function of a seat position error signal. The control system also controls the off-load member as a function of a signal used in the active control of the actuator. A compressor and a vent are coupled to the pneumatic device for controlling pressurization thereof. The control system comprises an electronic control unit which repeatedly executes a control algorithm at a predetermined rate, and which controls the operational status of the compressor and the vent as a function of the position error signal and the predetermined rate.
Dufner Daniel Lee
Schick Troy Eugene
Borden Ladner Gervais Llp
Deere & Company
LandOfFree
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