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A fpga-based fork lift controller for electric forklift

An electric forklift and controller technology, applied in the direction of hoisting devices, etc., can solve the problems of current fluctuation, torque fluctuation, increase driver fatigue, etc., and achieve the effect of fast response speed, small torque fluctuation, and improved work comfort.

Inactive Publication Date: 2018-05-29
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electric forklifts are usually powered by 80V lead-acid batteries, so permanent magnet synchronous motors work in a low-voltage and high-current environment, which is very prone to torque fluctuations and current fluctuations, and long-term work will increase driver fatigue.

Method used

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  • A fpga-based fork lift controller for electric forklift
  • A fpga-based fork lift controller for electric forklift
  • A fpga-based fork lift controller for electric forklift

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Embodiment Construction

[0023] The following is a clear and complete description of the technical solutions in the electric forklift lifting controller of the present invention in conjunction with the drawings and embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, and therefore other embodiments based on the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work belong to this invention. scope of invention protection.

[0024] The controller of the present invention comprises an input module, a microcontroller module with FPGA as the core, a power supply module, a power supply control module and a motor drive module, and the FPGA microcontroller is an FPGA chip of the Cyclone II series EP2C5Q208C8 model of Altera Company, and the input The connection diagram of module, microcontroller module with FPGA as the core, motor drive module and display module is as follows figure 1 shown. ...

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Abstract

The invention discloses an FPGA-based fork lifting controller for an electric forklift. The controller monitors the fork lifting control signal in real time through a detection system, controls the temperature of the lifting motor for lifting the fork, and the weight of the load carried by the fork. , the height of the fork relative to the ground and the lifting speed of the fork; a random access memory (RAM) is established inside the FPGA, and the motor temperature, cargo weight, height of the fork and the lifting speed of the fork detected by the FPGA are saved in real time through address search. In the RAM; the controller includes a microprocessor, a motor drive module, a DSP module, several sensors, an AD converter, and a display module etc.; the controller mentioned in the present invention is low in cost, fast in response speed, and highly integrated High, easy to improve, upgrade and add new functions.

Description

technical field [0001] The invention relates to the technical field of an FPGA-based electric forklift fork lift controller, and belongs to the technical field of engineering vehicle electronics. Background technique [0002] In recent years, energy and environmental issues have become the focus of global attention, and energy-saving and environment-friendly vehicles are increasingly favored by people. In the logistics handling industry, more and more electric forklifts are used in light industries such as warehouses, food, and textiles due to their high performance, high energy conversion efficiency, low noise, and no emissions. At present, the market share of foreign electric forklifts exceeds 50%, and the domestic market share of electric forklifts is only about 15%, which has broad market prospects. [0003] The lifting control device of the existing electric forklift mainly controls the lifting and lowering of the mast and the fork of the forklift through the motor, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F9/24
CPCB66F9/24
Inventor 周原尚文东刘明山李晓坤曾颖
Owner JILIN UNIV