Research Article
Design of LQG Controller for Active Suspension without Considering Road Input Signals
Table 1
Parameters of 4-DOF active suspension.
| | Parameters | Values |
| | Sprung mass () | 690 kg | | Front unsprung mass () | 40 kg | | Rear unsprung mass () | 45 kg | | Damping coefficient of front suspension () | 1000 N⋅s/m | | Damping coefficient of rear suspension () | 1000 N⋅s/m | | Stiffness of front suspension () | 17000 N/m | | Stiffness of rear suspension () | 22000 N/m | | Stiffness of front tire () | 200000 N/m | | Stiffness of rear tire () | 200000 N/m | | Rotary inertia of vehicle body around -axis () | 1222 kg⋅m2 | | Distance from the front axle to CG () | 1.3 m | | Distance from the rear axle to CG () | 1.5 m |
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