Motorized control of valve for automobile hydraulic assisted steering comprises computer, driving stepper motor, comprising condenser and inductance filtration circuit constituting energy reserve supplying motor in event of battery failure

摘要

The motorized valve control for the hydraulic assisted steering comprises a computer or controller (11) driving the electrical stepper motor which comprises a filtration circuit comprising a condenser (15) and an inductance (16) constituting an electrical energy reserve able to temporarily supply the motor in the event of electrical supply failure from the vehicle battery (12). A branch circuit (17) behind the filtration stage comprises a condenser (18) and a transistor (19) in series.