Novel steering mechanism capable of realizing partial steer-by-wire function and control method thereof

A technology of steering by wire and steering mechanism, which is applied in the direction of steering mechanism, power steering mechanism, mechanical steering mechanism, etc.

Active Publication Date: 2019-08-23
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The realization of this function requires the decoupling of the steering wheel angle and the wheel angle. At this stage, only the steeri

Method used

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  • Novel steering mechanism capable of realizing partial steer-by-wire function and control method thereof
  • Novel steering mechanism capable of realizing partial steer-by-wire function and control method thereof
  • Novel steering mechanism capable of realizing partial steer-by-wire function and control method thereof

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Embodiment Construction

[0085] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0086] Such as figure 1 As shown, the present invention provides a new type of steering mechanism capable of realizing partial steer-by-wire functions, including: a steering wheel 100 fixedly connected with a steering column 110 through a spline. The electric power steering system 120, the electromagnetic brake 130 and the single planetary row steering transmission mechanism 140 are sequentially connected with the steering column 110. The single planetary row steering transmission mechanism 140 is connected with the steering gear 160 through the universal transmission mechanism 150, and the steering gear 160 is connected to the rack and pinion mechanism 170, and then drives the wheels 200 to turn. The electric power steering system 120 , the electromagnetic brake 130 and the...

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Abstract

The invention discloses a novel steering mechanism capable of realizing partial steer-by-wire function. The novel steering mechanism comprises a steering wheel, an electromagnetic contracting brake, asun gear, a plurality of planetary gears, a gear ring, a planetary carrier, a worm and a decoupling driving mechanism, wherein the steering wheel is fixedly connected with a steering column; the electromagnetic contracting brake is coaxially and fixedly connected with the steering column; the sun gear is coaxially and fixedly connected with the electromagnetic contracting brake; the planetary gears are circumferentially and uniformly arranged on the outer side of the sun gear and are in meshed transmission with the sun gear; the gear ring is arranged concentric with the sun gear, the inner ring is in meshed transmission with the planetary gears, and the outer ring is provided with worm gear teeth; the planetary carrier is rotationally connected with gear shafts of the planetary gears in the circumferential direction, and a tubular column structure vertically extends from the center of one side, away from the steering wheel, of the planetary carrier and is used for being connected witha steering gear; the worm is in meshed transmission with the worm gear teeth of the outer ring of the gear ring; and the decoupling driving mechanism is connected with the worm and is used for driving the worm to rotate. A control method of the novel steering mechanism capable of realizing the partial steer-by-wire function is further provided.

Description

technical field [0001] The invention relates to the technical field of automobile steering, and more specifically, the invention relates to a novel steering mechanism and a control method thereof. Background technique [0002] In the design of automobile steering system, the vehicle requires the steering system to operate "sensitively" under low-speed conditions, that is, a larger wheel steering angle can be obtained by turning a small steering wheel angle; while the opposite is true under high-speed conditions. Most of the models now use a mechanical steering system with power assist. Once such a system is designed, the angular transmission ratio of the steering system cannot be changed, which is inconsistent with the actual driving needs. In order to balance the two contradictory requirements, the German BMW company uses the AFS active steering technology based on the double planetary row, which can realize the real-time adjustment of the angular transmission ratio of the ...

Claims

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Application Information

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IPC IPC(8): B62D3/02B62D1/20B62D5/00
CPCB62D1/20B62D3/02B62D5/001
Inventor 靳立强褚学聪
Owner JILIN UNIV
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