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An ultrasonic motor automobile automatic steering system and automobile automatic steering method

An automatic steering system and automatic steering technology, applied in electric steering mechanism, power steering mechanism, steering mechanism, etc., can solve the problem of always grasping the steering wheel, etc., achieve simple structure and manufacturing process, meet the needs of artificial intelligence, and high control precision Effect

Active Publication Date: 2019-06-18
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to adapt to the increasing development of modern artificial intelligence, from alleviating the driver's operating burden, to overcome the problem in the prior art that the driver needs to grasp the steering wheel at all times, the purpose of the present invention is to provide a new type of ultrasonic motor vehicle automatic steering system, which has The advantages of high safety, light operation, low cost and automatic steering can meet the needs of artificial intelligence

Method used

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  • An ultrasonic motor automobile automatic steering system and automobile automatic steering method
  • An ultrasonic motor automobile automatic steering system and automobile automatic steering method
  • An ultrasonic motor automobile automatic steering system and automobile automatic steering method

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Experimental program
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Embodiment 1

[0038] see Figure 1~2, the ultrasonic motor automobile automatic steering system of the present embodiment comprises a steering rod 1, a flange 3, two 6003 bearings 4, an upper ultrasonic longitudinal torsion motor 2 and a lower ultrasonic longitudinal torsion motor 2, the steering rod 1 is connected with the steering wheel of the automobile, and the Threads are processed on the outer wall of the steering rod 1, and a flange 3 is welded in the middle of the steering rod 1. The flange 3 is a concentric cylindrical structure, and its inner radius is the same as that of the steering rod 1. The inner radius of the 6003 bearing 4 is the same as that of the steering rod. 1 with the same radius. The upper ultrasonic longitudinal torsion motor 2 and the lower ultrasonic longitudinal torsion motor 2 are set on the steering rod 1, distributed on the upper and lower sides of the flange 3 and installed symmetrically with respect to the flange 3, the upper ultrasonic longitudinal torsion ...

Embodiment 2

[0054] The slotting cutting body 23 of the ultrasonic longitudinal torsion motor 2 of the present embodiment is provided with two mutually parallel spiral grooves along the circumferential direction on the side wall of a circular tube with one end closed and one end open, and one end of the opening is connected to the flange. The disk 3 is in contact, and one end of the closure is fixed longitudinally with the piezoelectric ceramic stack 22 and the cover plate 21 through a nut, and the cover plate 21 is movably connected to the connecting rod 1 through the bearing 4 in the radial direction; the starting points of the two spiral grooves are on the same circumference, and Evenly distributed on the pipe wall, the round pipe is made of aluminum material, the outer diameter is 100mm, the inner diameter is 60mm, the bottom thickness of the closed end is 10mm, the pipe length is 185mm, the two spiral grooves are left spiral, and the pitch is 50mm, the slot width is 5mm, the helix angl...

Embodiment 3

[0057] Two flanges 3 are respectively welded on the 1 / 3 node and 2 / 3 node of the steering rod 1 of the ultrasonic motor automobile automatic steering system of this embodiment, and ultrasonic vertical torsion plates are installed symmetrically on both sides of the flange 3. Motor 2, that is, three ultrasonic longitudinal and torsion motors 2 are distributed from top to bottom.

[0058] The rotation direction and rotation angle of the ultrasonic longitudinal torsion motor 2 in this embodiment can be determined according to the adjustable voltage output value of the programmable switching power supply module 24 of each ultrasonic longitudinal torsion motor 2. The connection mode and the structure of the ultrasonic warping motor 2 are the same as those of the first embodiment.

[0059] It should be further explained that the helix angle of the slotted cutting body 23 in the above embodiment can be adjusted in the range of 15-45°, and the pitch can be adjusted in the range of 50-3...

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Abstract

The invention relates to an automatic steering system of an ultrasonic motor automobile and an automatic steering method of the automobile. The system comprises a steering rod and one or more flange plates which are fixed on the steering rod, and ultrasonic longitudinal-torsional motors are symmetrically arranged at the two sides of each flange plate; the ultrasonic longitudinal-torsional motors are composed of cover plates, piezoelectric ceramic reactors, groove opening cutting bodies and program-controlled switch power supply modules. According to the automatic steering system, the aims of controlling the amplitude by changing the value of applied voltage is achieved by using the program-controlled switch power supply modules, the steering and rotation angles are further controlled by controlling the amplitude, and the system is flexible in steering, high in control precision and simple in structure and manufacturing technology; used elements are common, the whole cost of the steering system is low, the steering system which meets different requirements can also be obtained by changing the size of the novel ultrasonic longitudinal-torsional motors, and the system is suitable forvehicles of various types.

Description

technical field [0001] The invention belongs to the technical field of automobile steering systems, and in particular relates to an ultrasonic motor automobile automatic steering system and an automobile automatic steering method. Background technique [0002] In the field of automobile manufacturing, automobile steering occupies an important position. During normal driving, it is responsible for transmitting the driver's steering will to the car, changing or maintaining the direction of the vehicle during driving, to ensure the normal driving of the vehicle. The existing steering system is mainly divided into two categories: mechanical steering system and power steering system according to different energy sources. The mechanical steering system is mainly operated by the driver to turn the steering wheel, and all the power transmission parts are mechanical structures. When the steering direction and resistance are large, the driver uses the mechanical steering system to ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04
CPCB62D5/0415B62D5/046
Inventor 张小凤史菁尧李永杰张光斌
Owner SHAANXI NORMAL UNIV
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