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Automatic speed change electric tractor wheel edge driving device, system and method

A wheel-side drive and tractor technology, which is applied to electric devices, electric vehicles, control drives, etc., can solve problems such as the inability to meet the power requirements of electric tractors, the immaturity of products and related supporting services, and achieve light weight and compact structure. , strong anti-vibration effect

Pending Publication Date: 2021-04-02
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pure electric four-wheel drive vehicles are constantly developing, and related technologies are becoming more and more mature, and are widely used in China. However, in terms of agriculture, pure electric four-wheel drive tractors are still in a relatively initial stage, and the actual products and related supporting services are not yet mature. , so the research on pure electric four-wheel drive tractor has great practical significance
The power output function of the existing wheel drive device is mainly for normal road driving, which cannot meet the power requirements of electric tractors under farming conditions

Method used

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  • Automatic speed change electric tractor wheel edge driving device, system and method
  • Automatic speed change electric tractor wheel edge driving device, system and method
  • Automatic speed change electric tractor wheel edge driving device, system and method

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Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 , figure 2 Shown, a kind of electric tractor wheel edge driving device, comprises high-speed stage planetary gear mechanism, low-speed stage planetary gear mechanism, first electromagnetic clutch and second electromagnetic clutch; The sun gear 3 is connected through a flat key transmission, and the first planet carrier 7 of the high-speed planetary gear mechanism is connected with the second sun gear 8 of the low-speed planetary gear mechanism through a flat key transmission connection; the second sun gear 8 is connected with a plurality of second planetary gears 9 are respectively meshed, and a plurality of second planetary gears 9 are respectively meshed with the second ring gear 10, the second ring gear 10 is drilled with screw holes, the second ring gear 10 is fixedly connected with the output hub 14 by screws, the second The number of planetary wheels 9 is determined according to specific deceleration requirements; each second planetary wheel 9 i...

Embodiment 2

[0038] Based on the electric tractor wheel drive device described in Embodiment 1, this embodiment provides an electric tractor wheel drive system, such as image 3 As shown, it includes: a road condition identification module, which is used to obtain current road condition information; a working condition selection module, which is used to judge and select matching working condition information according to the current road condition information obtained by the road condition identification module; The working condition information output by the condition selection module controls the working states of the first electromagnetic clutch and the second electromagnetic clutch in the wheel drive device of the electric tractor in the first embodiment.

[0039] Such as Figure 4 As shown, the road condition recognition module includes an independent selection module, a mobile phone positioning module and a state observer; the independent selection module is the first priority, and t...

Embodiment 3

[0059] Based on the electric tractor wheel drive device described in Embodiment 1 and the electric tractor wheel drive system described in Embodiment 2, this embodiment provides an electric tractor wheel drive method, including: acquiring current road condition information; Information judgment selects the matching working condition information; according to the working condition information, the working states of the first electromagnetic clutch and the second electromagnetic clutch in the wheel drive device of the electric tractor described in the first embodiment are controlled. The current road condition information includes: the first road condition information acquired according to the driver's input, the location information of the electric tractor during operation obtained in real time according to the positioning software, and compared with the map database, the second road condition information acquired; During the operation of the electric tractor, the longitudinal f...

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Abstract

The invention discloses an automatic speed change electric tractor wheel edge driving device, system and method in the technical field of wheel edge driving, and the device has a two-gear speed changefunction and can meet the requirements of an electric tractor for speed when the electric tractor travels on a normal road surface and the requirements for power under the tillage working condition at the same time. The device comprises a high-speed-stage planetary gear mechanism, a low-speed-stage planetary gear mechanism, a first electromagnetic clutch and a second electromagnetic clutch. The output end of a motor rotor is in transmission connection with a first sun gear of the high-speed-stage planetary gear mechanism, and a first planet carrier of the high-speed-stage planetary gear mechanism is in transmission connection with a second sun gear of the low-speed-stage planetary gear mechanism; the second sun gear is engaged with a plurality of second planet gears, the second planet gears are engaged with a second inner gear ring, and the second inner gear ring is fixedly connected with an output hub; and the first electromagnetic clutch and the second electromagnetic clutch are used for switching between a driving mode and a farming mode.

Description

technical field [0001] The invention belongs to the technical field of wheel drive, and in particular relates to a wheel drive device, system and method for an automatic speed-variable electric tractor. Background technique [0002] Pure electric four-wheel drive vehicles are constantly developing, and related technologies are becoming more and more mature, and are widely used in China. However, in terms of agriculture, pure electric four-wheel drive tractors are still in a relatively initial stage, and the actual products and related supporting services are not yet mature. , so the research on pure electric four-wheel drive tractor has great practical significance. The power output function of the existing wheel drive device is mainly for normal road driving, which cannot meet the power requirements of electric tractors under farming conditions. Contents of the invention [0003] In order to solve the deficiencies in the prior art, the present invention provides an autom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/04B60K17/02B60L15/20
CPCB60K17/02B60K17/046B60L15/2054B60L2220/44B60L2240/62B60L2240/647Y02T10/72
Inventor 郑恩来申涛章永年薛金林高辉松林相泽朱跃
Owner NANJING AGRICULTURAL UNIVERSITY
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