Corner module dual-mode steering system equipped with two-stage steering, and driving method thereof

A corner module dual-mode steering system equipped with two-stage steering, comprising:

• a suspension configured to be connected between a vehicle frame and a wheel hub;
• a primary steering drive assembly comprising a primary drive mechanism and a primary transmission mechanism connected to the primary drive mechanism, the primary drive mechanism being fixed to the suspension, the primary transmission mechanism being configured to be connected to the wheel hub, and the primary drive mechanism being configured to drive the primary transmission mechanism to move, such that the primary transmission mechanism causes the wheel hub to steer relative to the suspension within a first angular range;
• a secondary steering drive assembly comprising a secondary drive mechanism and a secondary transmission mechanism connected to the secondary drive mechanism, the secondary drive mechanism being configured to be fixed to the vehicle frame, the secondary transmission mechanism being connected to the suspension, and the secondary drive mechanism being configured to drive the secondary transmission mechanism to move, such that the secondary transmission mechanism causes the suspension and the wheel hub together to steer within a second angular range.