The document discusses dynamic modeling and simulation of electrical power steering. It begins with an introduction to basic steering purposes and problems with conventional hydraulic power steering systems. Electrical power steering is then presented as an improved alternative. The document outlines the key components of an electrical power steering system and bond graph modeling technique. It provides figures to illustrate electrical power steering system configurations and examples of bond graph elements like inertial, storage, resistor, source, transformer and gyrator components.

1. DYNAMIC MODELLING AND SIMULATION
OF
ELECTRICAL POWER STEERING
By
Anshuman
Roll No: 801281005
ME (CAD/CAM &
robotics)
1

2. OUTLINE

Introduction

Electrical Power Steering

Literature Review

Bond Graph
References
2

3. INTRODUCTION

Basic purpose of steering

Power Steering

Problems with Conventional power steering[1]
3

4. TECHNIQUE PROGRESSES
Hydraulic Power Steering
Electro-hydraulic Power
Steering
Flow control System
Hybrid System
Electrical power
steering
Rack
Assisted
Column
Assisted
4
Fig.1.3

5. ELECTRICAL POWER STEERING
5
Fig.1.1

6. ELECTRICAL POWER STEERING
6
Fig.1.2 [1]

7. (CONTD…….)
BOND GRAPH
Bond Graph Elements
C
Storage element
e.g. capacitor (stores charge), spring (stores displacement)
I
Inertia element
e.g. inductor (stores flux linkage), mass (stores momentum)
R
Resistor element
e.g. electric resistor, mechanical friction
Se, Sf
Sources,
e.g. electric mains (voltage source), gravity (force source),
pump (flow source)
TF
Transformer,
e.g. an electric transformer, toothed wheels, lever
GY
Gyrator,
e.g. electromotor
0, 1
0 and 1–junctions, for ideal connecting two or more sub models
7

8. (CONTD…….)
BOND GRAPH
Source of effort
R:R1
SE
Inertial element
0
1
1
SF
0
Storage element
I:m
Resistor element
C:K
Source of flow
8
Fig.1.7

9. BOND GRAPH
(CONTD…….)
Transformer element
τ1
TF
µ=D2/D1
τ2
Fig.1.8
9

10. Thank You
10