Nghiên cứu và thi công mô hình phanh điện

HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION
FACULTY OF VEHICLE AND ENERGY ENGINEERING

SUBJECT:

BACHELOR THESIS
TOPIC:

Researching about electro-mechanical
braking system and making a model.
Advisor’s name : NGUYEN VAN TOAN, MSc
Students’ name:
Student ID:
VO VAN THANH
13145234
NGUYEN THANH VU
13145332

•1


Content
Introduction

Overview

EWB
The pros
and cons

Operating Principle

Applications
Model
•2


Researching the theory

OBJECTIVE

Providing more information

Applying to make a model

•3


“The braking system of the coach which caused the
accident on Prenn Pass was not qualified”

•4


Brake and Anti-brake forces

•5


Evaluation of brake quality

•6


What types of brake in automobiles do you know ?

•7


Types of brake

NOISE
LOW EFFICIENCY

•8


Hydraulic brakes
USELESS
LEAKAGE
GET
RUINED

•9


Mechanical Brakes
HEAT

FRICTION

WEAR
DOWN

LOCK

•10


Anti-lock Brakes

Created to assist previous braking systems to
prevent the brakes from locking up while in use.

ABS works by sensing when a lock is about to
occur.

•11


ELECTRONIC WEDGE BRAKE SYSTEM
1. EMB wheel modules
2. Brake pedal feel
emulator
3. Wheel speed sensor
4. Central control unit
5. Yaw rate and lateral
acceleration sensors
6. Parking brake switch

•12

Comparison of components

•13


The Electronic Wedge Brake

•14


Components

•15


Normal power

F

•16

Wedge power


Operating principle

A brake pad connected to a wedge is
pressed between the rod and the disc

through the use of electric motors.
The electric motors turn and push the
pad onto the disc.

•17

Sensors measuring wheel speed about
a hundred times per second can adjust
brake forces and wedge position to a
high degree of accuracy.


Controlling Principle & H-Bridge

•18


High Performance

•19


The pros and cons

A fully controlled electro-mechanical
braking system, self-reinforcement.
Intelligently controlling the wedge

The pros

A significant reduction in the actuator’s
energy demand.
Energy consumption, efficiency,
weight…

•20


The deformation of the brake caliper in
automobiles.

The cons

Complex control

High price.

•21


Applications

•22


Model
Structure

Operating principle

Arduino Controlling principle

In conclusion
•23


Algorithm diagram

•24


Thank you so much for attending.

•25