Stepless speed change steering-by-wire device and method for magneto-rheological variable damping road feeling

A magneto-rheological damping and magneto-rheological damper technology, which is applied to steering mechanisms, electric steering mechanisms, power steering mechanisms, etc., can solve problems such as high cost and complex mechanisms, and achieve easy layout, high transmission efficiency, and improved stability sexual effect

Inactive Publication Date: 2021-06-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

But the organization is more complicated and the cost is higher

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  • Stepless speed change steering-by-wire device and method for magneto-rheological variable damping road feeling
  • Stepless speed change steering-by-wire device and method for magneto-rheological variable damping road feeling
  • Stepless speed change steering-by-wire device and method for magneto-rheological variable damping road feeling

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[0036] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0037] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0038] The invention discloses a continuously variable speed-by-wire steering device with magnetorheological damping road sense, which comprises a steering wheel, a steering wheel sensor, a steering column, a stepless speed change mechanism, an electromagnetic clutch, a magnetorheological damper, a connecting column, a wire control Steering motor, wire-controlled driving gear, wire-controlled passive gear, steering gear, steering rack, first microcontroller, second microcontroller and ...

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Abstract

The invention discloses a stepless speed change steering-by-wire device and method for magneto-rheological variable damping road feeling. The device comprises a road feeling feedback system based on a magneto-rheological damper and a steering execution system based on a stepless speed changer, and multiple working modes can be switched under the control of an electronic control unit; and the normal steering function can still be ensured when the drive-by-wire mode breaks down. The problems that in a traditional steer-by-wire technology, a steering power source is single, safety is poor when a motor of a steering system fails, steering road feeling simulation is not vivid enough, and steering precision is not high are solved, the structure is simple and compact, road feeling simulation is rapid and accurate, and certain safety is achieved.

Description

technical field [0001] The invention relates to the steering-by-wire technology of automobiles, in particular to a continuously variable speed-by-wire steering device and method for magneto-rheological damping road sense. Background technique [0002] At present, automobiles are gradually becoming intelligent and electrified. Steering by wire is a key link in the development of intelligent automobiles, especially one of the necessary technologies for unmanned driving. The steer-by-wire technology has gradually matured and has been applied to a small number of models. The steer-by-wire system requires redundancy and fault-tolerant functions. Not only does it need to implement diagnostic and fault-tolerant control algorithms on the software, but it also requires redundant design of the hardware, which leads to complex hardware layout, high cost, and low hardware utilization of the steer-by-wire system. [0003] At present, there have been many researches on steering-by-wire t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCB62D5/0409B62D5/0436B62D5/046
Inventor 金智林胡志强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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