Fork lifting controller for electric lift truck based on FPGA

An electric forklift and controller technology, applied in the direction of hoisting devices, etc., can solve the problems of current fluctuation, torque fluctuation, and increase driver fatigue, and achieve the effect of preventing cargo damage, small torque fluctuation, and improving work comfort.

Inactive Publication Date: 2016-02-24
JILIN UNIV
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  • 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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  • Fork lifting controller for electric lift truck based on FPGA
  • Fork lifting controller for electric lift truck based on FPGA
  • Fork lifting controller for electric lift truck based on FPGA

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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 includes 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 CycloneII series EP2C5Q208C8 model of Altera Company, and the input module , FPGA as the core microcontroller module, motor drive module and display module connection diagram as shown in figure 1 shown.

[0025] Such a...

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PUM

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Abstract

The invention discloses a fork lifting controller for an electric lift truck based on FPGA. The controller monitors a fork lifting control signal in real time through a detecting system, and controls the temperature of a lifting motor for lifting a fork, the weight of goods loaded 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 in the FPGA, and through address search, the temperature of the motor, the weight of the goods, the height of the fork and the lifting speed of the fork detected by the FPGA are saved to the random access memory in real time; the controller comprises a microprocessor, a motor driving module, a DSP mould, a plurality of sensors, an AD converter, a display module and the like. The controller disclosed by the invention is low in cost, high in response speed and high in integrity, and new functions can be convenient to improve, upgrade and increase.

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 Applications(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
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