Intelligent electric tractor and working method thereof

Abstract

The invention relates to an intelligent electric tractor and a working method thereof, especially relates to an intelligent electric tractor dual-motor distributary and conflux drive system, a controlmode and work and belongs to the technical field of electric agricultural machinery. The overall device comprises a dual-motor input device, a differential gear train deceleration coupling device, arear axle, a differential mechanism and a power output device. The dual-motor input device comprises a main motor and a speed regulating motor, wherein the two motors enable the power to be transmitted backwards. The differential gear train deceleration coupling device is used for receiving input of the dual motors and coupling the power and transmitting the power backwards to the power output device for rotary tillage work or / and to the rear axle for driving the whole vehicle to advance. The device adopts a one-piece transmission case structure and is convenient to install; and the dual motors can work simultaneously and work independently, thereby overcoming the limitation that each motor can only drive a part of output separately, or coupling output can be realized only in some cases in the conventional double-motor drive process, and improving system reliability.

Description

technical field [0001] The invention relates to an intelligent electric tractor, in particular to a dual-motor split-confluence drive system, a control mode and a working method of the intelligent electric tractor, and belongs to the technical field of electric agricultural machinery. Background technique [0002] The energy consumption rate of traditional fuel tractors is relatively large, and the emission performance is also relatively poor. Most of the time, they work in the low-speed and high-torque area under high power, causing increasing damage to ecology, resources and the environment. The country's energy-saving emission reduction and pollution control The problem is getting more and more attention. The operating conditions of tractors are special and complex, requiring frequent changes in operating modes and gears. Today's advanced tractors have automatic shifting technology, but most of them are used in large and medium-sized tractors, which are expensive and not ...

AI Technical Summary

Problems solved by technology

Electric tractors are the basic equipment of green agriculture and the power source of most agricultural machinery. Therefore, the development of electric tractors is the focus of current green agriculture; the drive system can be said to be the core part of the entire electric tractor, and the driving method of traditional fuel tractors cannot meet the requirements. The driving method of the motor, so how to develop an efficient and non-traditional driving method has become the focus of research in the electric tractor industry

[0003] Chinese patent document (application number CN201420000778.8) provides an electric tractor, the power transmission device of which completes the control of the walking motor, power motor (power output device), and lifting motor under actual operating conditions through the integrated controller of the whole machine; China The patent document (application number CN201210122492.2) provides an electric tractor, emphasizing the independent control of multiple motors, and does not solve the coupling problem of dual motors, which has high limitations; the electric tractor provided by the Chinese patent document (application number CN201310444044.9) The purpose of using the integrated transmission box is to study the power transmission paths in the cultivation and transportation sections separately, and the lack of dual-motor coupling means that the motors are idle in most working conditions

Chinese patent document (application number CN201710033661.8) provides a dual-motor multi-mode drive system and control method for an electric tractor. Although there is coupling between the motors, the complex shifting structure does not break the traditional transmission mode and the gap between the motors. Corresponding coordinated control between motors, resulting in waste of power for a certain motor

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