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Multi-motor cluster driving control technology

A drive control and multi-motor technology, which is applied in the direction of controlling the combination of DC and AC motors, can solve the problems of low integration, high hardware cost, and low motor precision control

Inactive Publication Date: 2010-11-24
JIANGLU MACHINERY & ELECTRONICS GROUP
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] Due to the large number of motors required on hybrid excavators, and the working methods of each motor are different, similar products at home and abroad currently use independent control circuits and drive circuits for each motor, with many redundant circuits and high integration. Not high, high hardware cost, large volume, heavy weight, and low precision control of the motor

Method used

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Embodiment Construction

[0014] The main processor chip selects DSP, which receives all motor control commands and all motor feedback signals through related peripheral chips, generates control command words through comprehensive calculation, refreshes the corresponding address of the cache chip, and notifies the coprocessor chip.

[0015] The control command word is divided into two parts. The number of digits (BIT) in the first part is four times the number of motors. Every four bits (nibbles) correspond to a motor. For example, the first four bits are "0000" to indicate that the control command word Do not control the motor with number 1, "1111" means that the motor with control number 1 is in the power generation state, "1110" means that the pulse width speed regulation of the motor with control number 1 is at high level, "1101" means that the motor with control number 1 is at a high level The pulse width speed regulation of the motor is low level, and the remaining combinations respectively repres...

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Abstract

The invention relates to a multi-motor cluster driving control technology which comprises a peripheral signal receiving circuit, a main processor circuit, a buffer circuit, a coprocessor circuit and N motor-driven circuits. A main processor is used for receiving control signals and speeds and current feedback signals of motors and respectively carrying out corresponding operation processing. The switching-on / switching-off times of all the power switching pipes of the motors are sequenced from front to back by adopting unified time, thereby generating the control command words of all the motors. The multi-motor cluster driving control technology has the advantages of low cost, small size, light weight and high precise control degree for the motors.

Description

technical field [0001] The invention relates to a multi-motor cluster drive control technology on a hybrid excavator Background technique [0002] Due to the large number of motors required on hybrid excavators, and the working methods of each motor are different, similar products at home and abroad currently use independent control circuits and drive circuits for each motor, with many redundant circuits and high integration. Not high, the hardware cost is high, the volume is large, the weight is heavy, and the precise control of the motor is not high. Contents of the invention [0003] The purpose of the present invention is to provide a low-cost, small-volume, light-weight technology for multi-motor group control, and a high degree of precise control of the motors. [0004] The multi-motor centralized drive control technology is composed of a peripheral signal receiving circuit, a main processor circuit, a cache circuit, a co-processor circuit, and N motor drive circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P5/60
Inventor 易振董玉刚
Owner JIANGLU MACHINERY & ELECTRONICS GROUP
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