The invention discloses a vehicle energy-saving type assist steering
oil pump which comprises a steering
oil pump body and a belt
pulley, wherein an
electromagnetic clutch is arranged between the belt
pulley and the steering
oil pump body and comprises a transmission disc, an
electromagnet core and a coil, the transmission disc is located on the inner side of a belt
pulley hub, the
electromagnet core is located on the inner side of the transmission disc, the coil is arranged in the
electromagnet core, a friction plate is arranged on the side surface, facing the belt pulley hub, of the transmission disc, and an
electrophoresis paint material layer matched with the friction plat is arranged on the surface of the belt pulley hub. According to the vehicle energy-saving type assist steering oil pump, the
electromagnetic clutch is arranged, the on and off of
power transmission between the belt pulley and the steering oil pump body is controlled, the power of an engine is saved, and
oil consumption and
discharge of the engine are reduced; the
electrophoresis paint material layer is arranged on the surface of the belt pulley hub, so that the contact area of the
electromagnetic clutch and the friction plate can be increased, the
friction force is increased, the belt pulley can be prevented from skidding, the reliability is improved, and at the same time, the
electrophoresis paint material layer has a
rust-proof effect on the belt pulley.