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Multi-axis chassis steering control method and system and wheeled crane employing system

A technology of steering control and control method, which is applied in the steering control of multi-axle chassis and the field of wheeled cranes

Active Publication Date: 2012-06-27
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, it is urgent to optimize the design of the existing steering control method to avoid the problem that the deviation of the reference signal affects the normal steering of each axis

Method used

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  • Multi-axis chassis steering control method and system and wheeled crane employing system
  • Multi-axis chassis steering control method and system and wheeled crane employing system
  • Multi-axis chassis steering control method and system and wheeled crane employing system

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Embodiment Construction

[0036] The core of the present invention is to redundantly set the rotation angle detection device on another non-electrically controlled steering axle, when the device used as the wheel rotation angle detection reference on each electronically controlled steering axle fails, the redundant device can completely replace it As a benchmark function, it ensures the stability and reliability of the system. The accompanying drawings of the following structural specification illustrate this embodiment in detail.

[0037] The multi-axis chassis steering control system described in this embodiment includes a plurality of non-electrically controlled steering axles and electronically controlled steering axles, which is the same as the prior art. Usually, the front axle is a non-electrically controlled steering axle, that is, mechanically controlled, and the rear axle is an electronically controlled steering axle.

[0038] Wherein, one of the plurality of non-electrically controlled stee...

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Abstract

The invention discloses a multi-axis chassis steering control system, which comprises a plurality of non-electrically controlled steering axles and electrically controlled steering axles. One of the plurality of non-electrically controlled steering axles is provided with a first rotation angle detection device; and a steering controller controls control signals of the plurality of electrically controlled steering axles according to output of a rotation angle signal acquired by the first rotation angle detection device, wherein the other of the plurality of non-electrically controlled steeringaxles are provided with a second rotation angle detection device respectively; and the second rotation angle detection device is configured to provide redundancy for the first rotation angle detection device and output the acquired rotation angle signal to the steering controller when the first rotation angle detection device is abnormal. Because the redundant second rotation angle detection device can completely replace the first rotation angle detection device with the basic function, the normal steering of the steering system can be guaranteed, and a phenomenon that a vehicle is out of control is effectively avoided. On the basis, the invention also provides a multi-axis chassis steering control method and a wheeled crane with the control system.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a multi-axis chassis steering control method and system and a wheeled crane applying the system. Background technique [0002] In order to meet the needs of shortening the construction period, improving efficiency and reducing costs, multi-axle wheeled chassis are more and more widely used in construction machinery such as cranes and elevating work vehicles. As we all know, a multi-axle vehicle chassis has multiple steering shafts, and the steering angle needs to be determined according to the requirements of the steering mode under different working conditions. [0003] Take the road driving condition of a wheeled crane as an example. In order to make the vehicle run straight or turn according to the driver's manipulation intention, it is necessary to turn the steering wheel to adjust the vehicle's driving direction, that is, the steering angle of the wheels. See...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00B62D113/00
Inventor 朱长建王建东朱林邹艳波
Owner XUZHOU HEAVY MASCH CO LTD
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