Electric tractor

A tractor, electric technology, applied in electric vehicles, electric power devices, electric braking systems, etc., can solve the problems of low system efficiency, low energy conversion efficiency, high noise, etc., achieve ultra-low pollution emissions, improve utilization, The effect of improving transmission efficiency

Inactive Publication Date: 2012-08-29
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional tractors are usually fueled by liquid gasoline or diesel, driven by internal combustion engines, and have a wide range of optional horsepower, but the shortcomings of low energy conversion efficiency, loud noise and serious environmental pollution are difficult to completely improve
In addition, most of the energy generated by most tractors during braking, steering, and power take-off shaft deceleration is mostly converted into heat energy and lost, and the system efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Embodiment: when the electric tractor drives straight ahead and needs to be accelerated, the driver depresses the accelerator pedal, and the accelerator pedal sensor (19) transmits this acceleration signal to the main controller (8), and the main controller (8) according to the acceleration signal After the size is determined, the drive wheel (15) needs to accelerate the size of the electric power. At the same time, the main controller (8) cooperates with the energy management system (12) to control the discharge of the battery pack (10), and the electric energy of the battery pack (10) passes through the motor controller. II(7) is transmitted to the motor II(5), the motor controller II(7) adjusts the torque or speed of the motor II(5), and the motor II(5) realizes electric energy conversion, and converts the transmitted electric energy into the motor II( 5) output the mechanical energy of the shaft, and then transmit the mechanical energy to the reducer II (6), the redu...

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PUM

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Abstract

The invention provides an electric tractor. The electric tractor comprises a battery pack (10), an energy management system (12), a main controller (8), a motor controller I (4), a motor I (3), a speed reducer I (2), a power output shaft (1), a motor controller II (7), a motor II (5) and a speed reducer II (6). The main controller is used for receiving a motion signal and a working signal of a vehicle and transmitting a control instruction to the motor controller I and the motor controller II so as to carry out corresponding adjustments, like starting, accelerating, braking and the like on the motor I and the motor II; output torques of the motor I and the motor II are respectively used for driving the power output shaft and wheels by the speed reducer I and the speed reducer II so as to achieve multi-motor independent control. According to the invention, steering, downhill and braking energy can be recycled by using electric brake; requirements on different farmland operations, like rotary tillage, ploughing, transportation and the like can be satisfied; and the electric tractor provided by the invention has the advantages of light weight, flexibility, higher energy conversion rate, no waste gas emission and the like.

Description

technical field [0001] The invention belongs to the field of agricultural machinery and relates to an electric tractor, in particular to an electric tractor independently controlled by multiple motors. Background technique [0002] With the sharp reduction of oil reserves, the price of oil resources is also gradually rising. At the same time, exhaust emissions and environmental pollution are also increasing. The environmental protection of tractors puts forward higher requirements. Traditional tractors are usually fueled by liquid gasoline or diesel, driven by internal combustion engines, and have a wide range of optional horsepower, but the shortcomings of low energy conversion efficiency, loud noise and serious environmental pollution are difficult to completely improve. In addition, most of the energy generated by most tractors during braking, steering, and power take-off shaft deceleration is mostly converted into heat energy and lost, and the system efficiency is low. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/02B60L11/18B60L7/10
CPCY02T10/70
Inventor 杨福增刘永成孙立江刘东琴陈娇龙刘虹玉王乾水
Owner NORTHWEST A & F UNIV
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