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A magneto-rheological fluid-based brake-by-wire pedal simulator and its working method

A pedal simulator, brake pedal technology, applied in the direction of brakes, braking action starting devices, foot starting devices, etc., to achieve smooth feedback, quick response, good dynamic performance and anti-interference ability.

Active Publication Date: 2021-10-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the field of braking systems, there is no example of applying magneto-rheological fluid to control the simulated pedal feel.

Method used

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  • A magneto-rheological fluid-based brake-by-wire pedal simulator and its working method
  • A magneto-rheological fluid-based brake-by-wire pedal simulator and its working method
  • A magneto-rheological fluid-based brake-by-wire pedal simulator and its working method

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Embodiment Construction

[0036]In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0037] refer to figure 1 , figure 2 As shown, a magneto-rheological fluid-based brake-by-wire pedal simulator of the present invention includes: a mechanical transmission module, a brake pedal feeling simulation module and a control module;

[0038] The mechanical transmission module includes: brake pedal 2, pedal shaft 3, connecting rod 14 and push rod 15;

[0039] The input end of the pedal rotating shaft 3 is fixedly connected with the output end of the brake pedal 2, and the output end is fixedly connected with the input end of the connecting rod 14; the output end of the connecting rod 14 is connected with the input end of the push rod 15 hinged;

[0040] The brake pedal feeling simu...

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PUM

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Abstract

The invention discloses a magneto-rheological fluid-based brake pedal feel simulator and a working method thereof. The brake pedal feel simulator includes: a mechanical transmission module, a brake pedal feel simulation module and a control module. The brake pedal feeling simulation module uses magnetorheological fluid instead of hydraulic or elastic components, which greatly simplifies the structural complexity; adjusts the magnetic field strength through the excitation coil, changes the characteristics of the magnetorheological fluid to adjust the brake feedback; the invention has strong real-time performance and accuracy The height is high, so that the driver can get a good and smooth feeling of the brake pedal.

Description

technical field [0001] The invention belongs to the technical field of automobile brake systems, and specifically refers to a magneto-rheological fluid-based brake-by-wire pedal simulator and a working method thereof. Background technique [0002] The brake-by-wire system replaces the original mechanical connections and hydraulic pipelines with electronic circuits. It has the characteristics of fast response, good braking performance and flexible layout. However, because the brake-by-wire system cancels the hydraulic or mechanical connection between the brake pedal and the brake, the driver cannot directly perceive the braking force fed back to the brake pedal when braking, and the braking feedback of the traditional braking system is lost. . During the long-term braking operation, the driver has long been accustomed to the pedal force and pedal travel of the brake pedal feedback. The pedal simulator is the feeling of the brake pedal in the traditional braking system that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/40B60T7/04
CPCB60T7/042B60T8/4081B60T8/409
Inventor 王春燕王一松张自宇吴刚颜伸翔施帅朋秦亚娟王展
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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