CPC B60P 3/38 (2013.01) [B60N 2/501 (2013.01); F16F 15/02 (2013.01); B60N 2/34 (2013.01); B60P 3/39 (2013.01); B62D 33/06 (2013.01); F16F 9/00 (2013.01)] | 19 Claims |
1. A berth apparatus having a berth for accommodating a recumbent passenger, said berth apparatus being mounted in a vehicle and comprising:
a) a secondary suspension for supporting said berth;
b) a vibration detection system comprising at least one sensing element for detecting an unwanted motion of said berth produced by vibrations in at least one degree of freedom of rigid body motion;
b) a motion management system in communication with said vibration detection system, said motion management system comprising said secondary suspension and further having:
i) a motion removing component for removing from said berth said unwanted motion in said at least one degree of freedom, said motion removing component having at least one element selected from the group consisting of passive vibration isolation elements, semi-passive vibration isolation elements and active vibration isolation elements;
ii) a motion adding component for adding to said berth a desirable motion in said at least one degree of freedom, said desirable motion having a low frequency and a small amplitude and being based on a physiological parameter of said recumbent passenger.
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