Control method of driving mechanism

A control method of a driving mechanism is provided, comprising:

• providing a first electrical signal from a control assembly to a driving assembly to move a movable portion to an initial position relative to a fixed portion using the driving assembly, wherein the control assembly comprises a control unit and a position sensing unit, wherein providing the first electrical signal from the control assembly to the driving mechanism comprises:
• determining predetermined information, comprising:
• establishing initial predetermined information;
• providing linear compensation to the initial predetermined information to achieve compensated predetermined information;
• searching for a zero value;
• and
• testing the driving mechanism according to the compensated predetermined information and the zero value, to determine a difference between the compensated predetermined information and an actual value of the driving mechanism and a difference between the zero value and the actual value of the driving mechanism, and then determine the predetermined information by the differences;
• and
• providing the first electrical signal to the driving assembly according to the predetermined information;
• reading a status signal from an inertia sensing unit;
• using the inertia sensing unit to provide the status signal to the control unit, and then use the control unit to calculate a target position;
• using the control unit to provide a second electrical signal to the driving assembly according to the target position for driving the driving assembly;
• providing a position signal from the position sensing unit to the control unit;
• and
• using the control unit to provide a third electric signal to the driving assembly according to the position signal to drive the driving assembly.