An electro-hydraulic steering system was designed,which can be applied to truck,construction machinery vehicle,etc.The structure of the electro-hydraulic steering system was introduced,the principle was given,and the performance influence analysis was carried out.With this system,the vehicle steers lightly and flexibly at low speed,and increases steering resistance at high speed,which can prevent instability caused by road impact and driver misoperation.The system is simple in structure,light in weight and high in safety.
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