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Magnetorheological fluid-based brake-by-wire pedal simulator and working method thereof

A technology of pedal simulator and brake pedal, which is applied in the direction of brakes, brake action activation devices, foot activation devices, etc., to achieve the effects of smooth feedback, good comfort, universal applicability, and strong robustness

Active Publication Date: 2020-05-01
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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  • Magnetorheological fluid-based brake-by-wire pedal simulator and working method thereof
  • Magnetorheological fluid-based brake-by-wire pedal simulator and working method thereof
  • Magnetorheological fluid-based brake-by-wire pedal simulator and working method thereof

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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 Articulation;

[0040] The brake pedal feelin...

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Abstract

The invention discloses a brake-by-wire pedal feeling simulator based on a magnetorheological fluid, and a working method thereof. The brake-by-wire pedal feeling simulator comprises a mechanical transmission module, a brake pedal feeling simulation module and a control module. The brake pedal feeling simulation module uses a magnetorheological fluid to replace a hydraulic or elastic element so asto substantially simplify the structural complexity. The magnetic field intensity is adjusted through a magnet exciting coil, so that the characteristics of the magnetorheological fluid are changed so as to adjust brake feedback. The brake-by-wire pedal feeling simulator is high in real-time performance, high in accuracy and capable of enabling a driver to obtain a good and smooth brake pedal feeling.

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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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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