Classification of Automotive Electric Struts

Automotive electric liftgates can be classified according to various criteria, as detailed below:

Classification by Operating Principle
Mechanical Electric Liftgates: Utilize an electric motor to drive a gear transmission system, thereby enabling the opening and closing of the tailgate. Hydraulic Electric Liftgates: Rely on a hydraulic oil pump and hydraulic cylinders to execute the opening and closing movements of the tailgate.

Classification by Drive Method
DC Motor-Driven Liftgates: Characterized by a simple structure, high starting torque, and rapid response speed; these are relatively common in the market.
AC Motor-Driven Liftgates: Feature high power output, high efficiency, and strong adaptability; they are frequently used in large vehicles or models with higher power requirements.

Classification by Installation Method
Integrated Electric Liftgates: Installed directly inside the vehicle door, occupying no external space and enhancing the aesthetic appeal of the vehicle's design; however, they present greater installation complexity and higher costs.
External Electric Liftgates: Installed on the exterior of the vehicle door; they feature a relatively simple structure and lower manufacturing costs, though they may potentially compromise the overall aesthetic integrity of the vehicle's exterior.

Classification by Number of Struts
Single-Strut Electric Liftgates: Characterized by a simple structure and lower cost; however, during operation, situations may arise where the struts on both sides fail to reach their destination simultaneously or do not align precisely, potentially leading to issues such as tailgate torsion, deformation, or improper closure.
Dual-Strut Electric Liftgates: Feature coordinated left and right struts that ensure simultaneous arrival on both sides, thereby effectively eliminating the issues associated with single-strut systems; however, they entail higher costs and greater installation complexity.