Power system and control method of a four-wheel drive pure electric tiller

Abstract

The invention discloses a four-wheel driven pure-electric micro-ploughing machine powder system and control method of the same. The power system comprises a powder output unit and a control unit, wherein four wheel hub motors of the power output unit are powered by a first lithium battery set and rotating speed of the motors are controlled by corresponding wheel hub controllers; a rotary tillage motor is powered by a second lithium battery set and rotating speed of the rotary tillage motor is controlled by a motor controller; a main controller of the control unit collects on-site image information and the on-site image information is sent to a hand-held remote controller via a wireless communication way; an operator sends a control order of the micro-ploughing machine to the main controller via the hand-held remote controller; and the main controller sends rotating speed adjusting orders to the four wheel hub controllers of the power output unit to control forward, backward and turn-walking paths of the micri-ploughing machine, and sends a rotating speed adjusting order to the motor controller to control rotating speed of a micro-ploughing motor output shaft to drive a cutter to work. The four-wheel driven pure-electric micro-ploughing machine powder system is clean, free of pollution and has convenient operation and strong adaptability, thereby being suitable for wide application to micro-ploughing work in vegetable greenhouses.

Description

Technical field: [0001] The invention belongs to the technical field of new energy agricultural machinery, and relates to a power system and a control method, in particular to a power system and method of a four-wheel drive pure electric tiller. Background technique: [0002] Due to the reduction of agricultural practitioners and the increase of agricultural labor costs, the development of agricultural machinery to replace human operation is an important way to improve agricultural production efficiency and realize agricultural modernization. At present, most agricultural machinery used in agricultural operations uses traditional fuel engines as the main power source. Exhaust emissions and fuel leakage will further pollute crops and soil. The noise of fuel engines seriously damages the physical and mental health of field operators. Today, when people are pursuing green vegetables and healthy life, the development of new energy agricultural machinery and equipment for vegetab...

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Problems solved by technology

The magazine "Guangdong Agricultural Science", the article published in the 14th issue of 2013: "Research on the Control System of Two-Wheel Independently Driven Electric Tillers", reported a small hand-held two-wheel independently driven electric tiller for For the drive control of the electric micro tillage machine, a fuzzy PID controller based on the fuzzy control method is designed to effectively improve its operating performance and reduce the driver's manipulation intensity, but it needs to provide additional power to the DC motor, and the power grid needs to be set up in the greenhouse, which increases the cost. Greenhouse cost; the article published in the magazine "Anhui Agricultural Science", Volume 41, Issue 14, 2013: "Design and Analysis of Electric Tiller Rack Based on Wheel Hub Motor Drive", provides a micro tillage machine driven by a lithium battery-powered wheel hub motor. Tillers, this design reduces the cost of the greenhouse. At the same time, the micro-tillers driven by hub motors replace the traditional drive system. The lightweight hub motors directly drive tires or rotary tillers, eliminating the need for intermediate transmission devices such as reducers, Walking box, etc., the overall structure is simplified, the cost of the greenhouse is reduced, and the efficiency is improved. However, these tillage machines adopt the operation mode of people following the machine, which brings a lot of inconvenience to the operation.

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