Auto electric power -assisted steering system

The utility model discloses an auto electric power -assisted steering system sets up the energy storage ware on the hydraulic pressure oil pipe of the oil -out through turning to the oil pump in the connection and the oil inlet of pneumatic cylinder, stores the energy that the motor produced in the energy storage ware with the form of high pressure hydraulic oil, and is reserve to realized that energy in the energy storage ware can satisfy and under the condition of the demand of turning to shut down the motor, be continuous operation before need not looking like, reduced the energy consumption, and set up the pressure size of hydraulic oil in the pressure sensor energy storage ware, and this a steering system can realize providing power -assisted steering by energy storage ware and the two stack of motor, and under the condition that does not increase power of motor, diversion ground has improved the power -assisted steering's that this electronic hydraulic pressure helping hand a steering system can provide