hydraulic actuator includes an energy recuperation device which harvests the energy generated from the stroking of a shock absorber the energy recuperation device can function in a passive energy recovery mode for the shock absorber to store recovered energy as fluid pressure or it can be converted to another form of energy such as electrical energy application_number US 201514616112 A description example embodiments will now be described more fully with reference to the accompanying drawings the following description is merely exemplary in nature and is not intended to limit the present disclosure application or uses there is shown in fig1 a vehicle incorporating an active energy harvesting suspension system in accordance with the present disclosure and which is designated generally by the reference numeral 10 vehicle 10 includes a rear suspension 12 a front suspension 14 and a body 16 rear suspension 12 has a transversely extending rear axle assembly not shown adapted to operatively support a pair of rear wheels 18 the rear axle is attached to body 16 by means of a pair of active energy harvesting devices 20 and by a pair of springs 22 similarly front suspension 14 includes a transversely extending front axle assembly not shown to operatively support a pair of front wheels 24 the front axle assembly is attached to body 16 by means of a pair of active energy harvesting devices 26 and by a pair of springs 28 active energy harvesting devices 20 and 26 serve to dampen the relative motion of the unsprung portion i e front.