The drive system is the core power train of an electric forklift, converting electrical energy
from the battery into mechanical motion.
Two Categories based on Motor type:
1. DC Drive System
Uses a series-wound DC motor with a thyristor or transistor chopper controller. This is the older,
traditional technology.
They're Features:
Simple and Robust: Proven reliability with lower initial cost.
High Start-up Torque: Provides strong pulling force from standstill.
Drawbacks: Requires periodic brush and commutator maintenance; lower energy efficiency compared
to AC and limited regenerative braking capability.
2. AC Drive System
Utilizes an AC induction motor powered by a Lead-Acid or Li-ion battery.
Paired with a transistorized inverter controller that converts DC battery power to AC.
They're Advantages:
Brushless Design: No carbon brushes or commutator, eliminating regular wear-part replacement.
Regenerative Braking: Captures kinetic energy during deceleration and returns it to the battery, extending
shift life by 15-20%.
Superior Torque Control: Delivers full torque at low speeds for precise inching and ramp starting.
Sealed IP54 Rating: Better resistance to dust and moisture in harsh warehouse environments.
