Active anti-rollover control method and system for wheeled tractors based on active steering control

A wheeled tractor and active steering technology, applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc., can solve the problems of lack of traction and off-road performance, and achieve obvious effects, strong robustness, and quick response

Active Publication Date: 2020-11-17
CHINA AGRI UNIV
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  • Abstract
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Problems solved by technology

In addition, in order to improve the stability of tractors when driving on side slopes, some scholars have studied the stability controller and walking mechanism of mountain tractors. This model can run stably on 24.2° side slopes, but the traction and Lack of off-road performance

Method used

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  • Active anti-rollover control method and system for wheeled tractors based on active steering control
  • Active anti-rollover control method and system for wheeled tractors based on active steering control
  • Active anti-rollover control method and system for wheeled tractors based on active steering control

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Embodiment Construction

[0059] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0060] Such as Figure 1 ~ Figure 2 As shown, an active anti-rollover control system for wheeled tractors based on active steering control includes an inclination sensor 1 , an angular velocity sensor 2 , a central control unit 3 , a stepper motor 4 and a yaw angle sensor 5 .

[0061] The wheeled tractor active anti-rollover control system based on active steering control of the present invention is arranged on a tractor equipped with a full hydraulic power steering system. Wherein, the inclination sensor 1, the angular velocity sensor 2 and the central control unit 3 are arranged at the lower longitudinal axis position of the rear part of the tractor chassis. The yaw angle sensor 5 is arranged at the front longitudinal axis of the tractor chassis. The stepper motor 4 is arranged at the bottom of the steering wheel ...

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Abstract

The invention relates to the technical field of active safety of wheeled tractors, in particular to the wheeled tractor active anti-rollover control method and system based on active steering control.The wheeled tractor active anti-rollover control system includes an inclination sensor (1), an angular velocity sensor (2), a central control unit (3), a stepping motor (4) and a yaw angle sensor (5); the inclination sensor (1), the angular velocity sensor (2) and the yaw angle sensor (5) jointly collect motion parameters of a tractor in the course of traveling, and the motion parameters includea real-time state roll angle of the tractor, the speed of roll angle and the yaw angle of the whole tractor; and the central control unit (3) judges a roll trend of the tractor according to a collected signal of the tractor roll instability, calculates the active steering angle of the active steering required under a rollover working condition, controls the steeping motor (4) to work according tothe calculated results to drive the rotation of an inner shaft of a direction pipe string, and cooperates with a tractor hydraulic power steering system to realize active steering and stabilized control of the tractor.

Description

technical field [0001] The invention relates to the technical field of active safety of wheeled tractors, in particular to an active anti-rollover control method and system for wheeled tractors based on active steering control. Background technique [0002] As a power machine widely used in agricultural production, wheeled tractors have greatly improved the efficiency of agricultural production and promoted the development of agricultural mechanization in countries all over the world. However, due to the complex working environment and poor operating conditions of tractors, different agronomic operating conditions require high passability, which leads to the characteristics of high working ground clearance, resulting in tractor fatal accidents in different environments. In addition, statistical results show that rollover accidents account for more than 50% of wheeled tractor fatal accidents worldwide in recent years, and rollover is the main culprit of fatal accidents. Alth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00B60R21/013B60R21/00B60R21/13B60R16/023B62D137/00
CPCB60R16/023B60R21/00B60R21/013B60R21/13B60R2021/0076B60R2021/01306B62D6/00
Inventor 李臻秦嘉浩武仲斌朱忠祥王国业杜岳峰
Owner CHINA AGRI UNIV
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