Introduction  

Energy is an important foundation for the development of the national economy. All walks of life, our daily production and life are inseparable from all kinds of energy. China is a large energy-consuming country. While vigorously advocating the development of new types of clean energy, such as wind energy, solar energy, and water energy, China is also paying more and more attention to the efficiency of energy use, adopting intensive development to replace the previous extensive development model, and taking sustainable The path of development. To ensure the sustainability of energy and the environment, energy conservation and consumption reduction, energy conservation and emission reduction are equally important as energy development.

Brief introduction of forklift

Forklift is a non-highway, short-distance handling machine, widely used in various warehouses, workshops in the movement of goods, stacking, loading and unloading and other operations, with small size, flexible operation, solid and durable, heavy load Features, the emergence of forklifts has greatly liberated manpower, improved the efficiency of cargo handling, utilization of storage space, and changed the storage mode.

The early forklifts were internal combustion, similar to our diesel vehicles. They were accompanied by large noise and dark exhaust emissions during work. For the relatively closed space of the factory warehouse, it was very unfriendly to the workers ’working environment. With the change of electrification, the original internal combustion engine is replaced with an electric drive device, similar to our current new energy EV car.

Electric forklifts have developed rapidly, from traditional counterweights to pallet handling, stacking, traction, backpack, submersible navigation unmanned AGV, narrow lane unmanned stacking and other new intelligent handling machinery, which have changed the traditional forklift industry The usage habit provides efficient and accurate handling support for intelligent warehousing.

Brief introduction of Lg series low voltage driver

Megmeet L6 series drive controller is mainly a high-performance drive controller developed for electric low-speed vehicles. The advanced control software ensures that the motor can run smoothly in different modes, including full speed and high torque output, zero Speed and torque control, special input / output ports and software ensure the controller's economy and high efficiency in controlling the walking system, electromagnetic brake and hydraulic system. It is widely used in all kinds of low-speed vehicles, such as counterbalanced forklifts, warehouse logistics vehicles, golf carts, sightseeing vehicles, patrol vehicles, various lifting platforms, electric excavators, etc., and is committed to comprehensively helping the electrification of low-speed vehicles and construction machinery. Energy Conservation Competition——L6 VS KDS

Recently, at the request of customers, an energy-saving contest was launched in its factory for Ningbo Forklift and Hangcha Forklifts, and the power saving and energy efficiency data under their respective control schemes were compared. 

Contrast equipment: Haimike permanent magnet synchronous forklift, Hangzhou asynchronous forklift, the configuration is as follows

Contrast performance: unified vehicle management charging energy consumption, vehicle management work operation energy consumption

Performance index 1: Unified vehicle management charging energy consumption

Test methods and steps：

（1） Install two electric meters in front of the on-site charging pile, which are used to record the power consumption of the two vehicles.

（2） Unified charge management for the two vehicles on site, separately recording the battery power and meter degree of the vehicle dashboard before charging; after charging to the set time, recording the current battery power of the instrument panel and the current degree of the meter respectively Data, comparing power consumption before and after.

Actual Data:

Result analysis:

From the data in the above table, we can see that the charging efficiency of the synchronous vehicle lithium battery is significantly higher than that of the asynchronous vehicle lead acid battery.

Performance index 2: Energy consumption of vehicle management

Test methods and steps

（1） Install the electric energy meter in the vehicle body, control the vehicle to work under the same working condition, and record the current running timing and power display of the vehicle instrument panel.

（2） Drive the forklift under the same working condition. After the same operation time, record the current running time and power display of the vehicle dashboard, and analyze the data difference before and after.

Result analysis:

From the data in the table above, we can see that the working efficiency of synchronous vehicles is higher than that of asynchronous vehicles, and the power consumption is low.