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Twin-motor alternating-current driving system for electric fork-lift truck

An AC-driven, electric forklift technology, applied in the field of vehicle power systems, can solve problems such as low performance, inconvenient installation, and complex structure, and achieve the effects of easy layout and installation, reduced volume, and sensitive steering

Inactive Publication Date: 2013-01-09
CHENGDU LAINTEM MOTORS CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the existing drive system, such as large volume, heavy weight, complex structure, inconvenient installation and low performance, and provide a dual-motor AC drive system for electric forklifts.

Method used

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  • Twin-motor alternating-current driving system for electric fork-lift truck
  • Twin-motor alternating-current driving system for electric fork-lift truck

Examples

Experimental program
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Effect test

Embodiment

[0025] Such as figure 1 As shown, the electric forklift uses a dual-motor AC drive system, which includes a main controller, an accelerator pedal, an electronic brake pedal and a steering wheel connected to the main controller through a communication line, and the main controller is connected with the angular displacement sensor, the accelerator pedal, and the steering wheel. Electronic brake pedals, etc. collect action signals, and the above-mentioned dual-motor AC drive system for electric forklifts also includes:

[0026] An electronic differential, the electronic differential is connected to the main controller through a communication line;

[0027] A first motor controller and a second motor controller, the first motor controller and the second motor controller are respectively connected to the electronic differential through a communication line;

[0028] a first drive motor and a second drive motor, the first drive motor is electrically connected to the first motor con...

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PUM

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Abstract

The invention discloses a twin-motor alternating-current driving system for an electric fork-lift truck. The driving system comprises a main controller and an electric differential. The main controller collects action signals from an angular displacement sensor, an accelerator pedal, an electronic brake pedal and the like and sends the signals to the electric differential after comprehensive treatment. The main controller comprises a first motor controller and a second motor controller, and the first motor controller and the second motor controller control a first drive motor and a second drive motor independently and respectively, so that the fork-lift truck achieves a reserved speed difference during steering. The twin-motor alternating-current driving system has the advantages of being small in size, light in weight, simple in structure and convenient to mount, enabling the steering of the fork-lift truck to be flexible, and having flexible and efficient mechanical driving characteristics.

Description

technical field [0001] The invention relates to a vehicle power system, in particular to a dual-motor AC drive system for an electric forklift. Background technique [0002] Electric forklifts generally use a single-motor drive system, which mainly includes a motor controller, a drive motor and a mechanical differential. The motor controller controls the output of the drive motor, and the mechanical differential distributes the power of the motor to each on the drive wheel. Since only one driving motor is used, the power of the driving motor must be relatively large, which results in a relatively large volume of the entire system. The use of mechanical differentials further increases the volume and weight of the system, making the system complex and inconvenient to install. The mechanical differential has a slight impact on the handling of the vehicle, and cannot provide effective assistance for the vehicle to pass under bad road conditions. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): B60K17/12B60K17/16B60L11/18
CPCY02T10/648Y02T10/7005Y02T90/16Y02T10/64Y02T10/70
Inventor 樊成芳何勤陈奇志朱春全
Owner CHENGDU LAINTEM MOTORS CONTROL TECH
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