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Pedal feeling simulator applied to brake-by-wire system and control method thereof

A brake pedal and brake-by-wire technology, which is applied in the direction of brakes, brake transmission devices, brake action activation devices, etc., can solve problems such as limitations, large differences in pedals, and non-adjustable

Pending Publication Date: 2021-02-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some existing pedal feeling simulators use two kinds of springs with different stiffnesses for passive simulation, and the pedal characteristics are quite different from the actual ones; , and relatively limited, lack of classification experience and personalization settings

Method used

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  • Pedal feeling simulator applied to brake-by-wire system and control method thereof
  • Pedal feeling simulator applied to brake-by-wire system and control method thereof
  • Pedal feeling simulator applied to brake-by-wire system and control method thereof

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Experimental program
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Embodiment Construction

[0091] see Figure 1-4 As shown, a pedal feel simulator applied to a brake-by-wire system provided by the present invention includes a brake pedal 1, a pedal push rod 2, a simulator cylinder 3, a first piston 4, a second piston 5, a third Piston 6, first spring 7, second spring 8, third spring 9, pedal force adjusting device 10, pedal force sensor 11, pedal displacement sensor 12, electronic control unit ECU13;

[0092] The brake pedal 1 is hinged with the pedal push rod 2, the first piston 4, the second piston 5, and the third piston 6 are sequentially arranged in the simulator cylinder 3, and the pedal push rod 2 passes through the front end of the simulator cylinder 3 The through hole on the plate is connected with the first piston 4;

[0093] One end of the first spring 7 is connected to the brake pedal 1, and the other end is fixed on the vehicle body or the simulator cylinder 3. When the first spring 7 is fixed on the simulator cylinder, the first spring 7 is sleeved on...

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Abstract

The invention provides a pedal feeling simulator applied to a brake-by-wire system and a control method of the pedal feeling simulator. The pedal feeling simulator comprises a brake pedal, a pedal push rod, a simulator cylinder body, a first piston, a second piston, a third piston, a first spring, a second spring, a third spring, a pedal force adjusting device, a pedal displacement sensor, a pedalforce sensor and an electronic control unit ECU. Pedal displacement and pedal displacement rate signals of a driver under specific working conditions are collected, the driving habits of the driver are classified into a sharp type, a general type and a cautious type through a K-Means clustering or hierarchical clustering algorithm, and personalized pedal feeling adjustment is achieved according to the driving habit classification result of the driver or the will of the driver. The structure is simple, the cost is low, and accurate adjustment of the pedal force and accurate identification of the braking intention of a driver can be achieved.

Description

technical field [0001] The invention relates to a pedal feeling simulator, in particular to a pedal feeling simulator applied to a brake-by-wire system and a control method thereof. Background technique [0002] In recent years, my country's automobile industry has made great progress and achieved remarkable results. The number of domestic automobiles and the production and sales of automobiles are among the top in the world. The development of the automobile industry has also brought a series of problems, the more serious ones are environmental pollution, energy crisis, travel safety and so on. In order to solve these problems, the automotive industry needs to continuously develop various new technologies. In this context, the wire control technology has become an important direction for future automotive development. [0003] Braking performance is an essential and important performance of a car, and the braking system is a necessary guarantee for the safety of the car. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/40B60T7/04B60T13/74
CPCB60T7/042B60T8/409B60T13/746
Inventor 朱冰靳万里赵健张伊晗李扬康宇李波姜景文孙一
Owner JILIN UNIV
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