Electric tractor is widely used in railway, airport and other logistics systems because of its battery power, good environmental protection performance and high production efficiency.
At present, the forward and backward motion of electric tractor is mainly controlled by the forward and backward switch, accelerator, electronic control unit and motor on the direction switch assembly. This control method has three shortcomings: firstly, when the tractor and the pallet truck are towed and trailed, it can not accurately adjust the position of the tractor pin and the pallet truck hook, so it is easy to damage the tractor body; secondly, the tractor forward, backward time and speed control precision is low; thirdly, when the vehicle frequently forward, backward and brake, the motor. The damage of components such as ECU and tires is large.
The principle of the micro-motion control system of the electric tractor is as follows: when the tractor and the pallet truck are towed, the tractor approaches the pallet truck first; when the tail of the tractor is very close to the pallet truck, the driver alights to observe the distance between the tractor pin and the pallet truck hook; two electric mounted on the right rear hood of the tractor car body The movable switch is used for adjusting the micro adjustment of the towing vehicle’s forward or backward motion so as to complete the hook operation accurately. When the tractor needs to be decoupled from the pallet truck, the operation method is basically the same.
The micro-motion control system of electric tractor greatly shortens the towing operation time, improves work efficiency, and reduces the damage caused by motor, electronic control unit, tire and other components of towing operation team.