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Due to long working hours at the steering wheel of a long haulage truck great attention has to be paid to the driving comfort. The possibilities of passive suspension systems are widely exhausted. It is shown by results of measurements that an active suspension system is well feasible with commercially available hydraulic components, though naturally still to be improved. An apropriate concept is presented including neccessary changes of the existing test vehicle taken from series, sensorics and safety considerations. Also basic features of the control strategy and a first test rig for evaluating the control parameters of the hydraulic system are described.