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A universal brake 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., can solve the problems of increasing system complexity, different, difficult to accurately simulate springs, etc., and achieve optimal braking. Efficiency, good comfort, responsive results

Active Publication Date: 2021-07-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brake-by-wire pedal simulators proposed by the above two patents are difficult to accurately simulate using springs due to the nonlinearity of the pedal characteristics.
In addition, whether using pneumatic or hydraulic pressure, many auxiliary structures are required, which increases the complexity of the system
And different people have different feedback on pedal feeling, especially when an emergency occurs, it is difficult for the elderly and women to maximize the braking force according to the traditional pedal characteristics

Method used

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  • A universal brake pedal simulator and its working method
  • A universal brake pedal simulator and its working method
  • A universal brake pedal simulator and its working method

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Embodiment Construction

[0047] 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.

[0048] refer to Figure 1 to Figure 4 As shown, a universal brake-by-wire brake pedal simulator of the present invention includes: a mechanical transmission module, a brake pedal feeling simulation module and a control module;

[0049] The mechanical transmission module includes: brake pedal 2, pedal shaft 4, connecting rod 3 and push rod 9;

[0050] The input end of the pedal rotating shaft 4 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 3; the output end of the connecting rod 3 is connected with the input end of the push rod 9 Hinged; said push rod 9 has an L-shaped through hole 25 inside;

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Abstract

The invention discloses a universal 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; the property of the magnetorheological fluid flowing through the through hole of the piston is changed through the excitation coil, and the rotation angle of the electronically controlled rotary paddle is combined By adjusting the size of the piston through hole, the two methods can be used together to finely adjust the damping force of the magneto-rheological fluid to obtain the best pedal feedback force; provide the best possible brake pedal feedback.

Description

technical field [0001] The invention belongs to the technical field of automobile brake systems, and specifically refers to a universal brake 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 the driver simulates through s...

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吴子涵何鹏王展秦亚娟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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