臺灣博碩士論文加值系統

In modern world of high paced life style and traffic conditions, automobiles are facing
challenges in terms of having to survive road accidents, increasing vehicle count and
bad road-conditions. Braking systems play a vital role in controlling the vehicle speed
while avoiding road accidents. In the case of a two-wheeler, being a single-track
vehicle, skidding, nose flipping and improper front and rear brake combination are the
major causes for fatal road accidents due to loss in lateral balance.
Many advance brake assisting mechanisms were developed in order to assist the rider
during braking and efficiently preventing from common and rare accidental situations
caused by improper brake usage. Some of these systems include Combined Braking
System (CBS), Anti-lock Braking System (ABS) and CBS plus ABS. In all these
methods, economical cheapest and most commonly used system is CBS. The reason
being, it’s installation cost, effectiveness, easy maintenance and overall price to
performance ratio. Now a days, many motorcycle manufacturer are installing CBS in
their two-wheelers due to change in government’s transportation and automotive
safety regulations.
The presented research work is carried out to develop a new hydraulic CBS concept,
which will address most of the braking related problems and will satisfy the
government’s safety standards and regulations. Also the provided concept is
compared against an existing patent of mechanical CBS. Both subjects were tested using same parameters and conditions in order to provide a fair and fact-based
simulation data.
The concept CBS includes a proportional valve which was designed using
SolidWorks after studying various existing patents of CBS. This CBS concept
development includes Finite Element Analysis to simulate and test safety factor
requirements during high hydraulic fluid pressure of hydraulic brakes. This research
work also uses BikeSIM to simulate real-world braking conditions with vehicle
dynamics and test the concept against the government issued safety standards and
regulations. The same procedure was applied with existing mechanical CBS and then
further data was compared to prove the new concept CBS.
This research work concluded that the developed concept CBS can perform under the
government’s safety requirements. It can perform as well or in some cases better than
the CBS systems which already exists in market. Many data and simulations are
presented in research work to support the concept and its performance.

ABSTRACT ................................................................................................................... 2
ACKNOWLEDGMENTS ............................................................................................. 4
TABLE OF CONTENTS ............................................................................................... 5
LIST OF FIGURES ....................................................................................................... 6
LIST OF TABLES…………………………………………………………………… 7
1. INTRODUCTION…………………………………………………………………8
1.1. Motivation…………………………………………………………………….8
1.2. Reference review……………………………………………………………..9
1.3. Research Statement………………………………………………………….12
2. BACKGROUND AND LITERATURE REVIEW……………………………....13
2.1. Hydraulic Braking System…………………………………………………..13
2.2. Mechanical Braking System……………………………………………..….15
2.3. Combined Braking System………………………………………………….19
2.4. ECE Vehicle Regulations for Two-Wheeler Braking System………………22
3. METHODOLOGY………………………………………………………………27
3.1. Proposed Hydraulic CBS Design………………………………………..….27
3.2. Mechanical Combined Braking System…………………………….………36
3.3. Scooter model and Design Constraints…………………………..…………39
4. RESULTS………………………………………………………………………..41
4.1. Finite Element Analysis of proposed Hydraulic CBS valve…………….….41
4.2. BikeSIM Simulation of proposed Hydraulic CBS……………………...…..44
4.3. Finite Element Analysis of Mechanical CBS Assembly……………………47
4.4. BikeSIM Simulation of Mechanical CBS………………………………..…49
4.5. Comparison of Hydraulic CBS with Mechanical CBS……………………..51
5. CONCLUSION……………………………………………………………….…52
6. REFERENCES……………………………………………….…………………53
APPENDIX…………………………………………………………………………55

1. Hoffman, O., Eckert, A., Woywod, J. “ThecMotorcycle Integral Brakesystem
MIB: an advanced brake solution for high performance motorcycles”, 6.
Internationale Motorradkonferenz, Köln, 9.-10.10.2006
2. Brake system for motorcycles; patent no. EP0687621A2
3. Interlocked brake system for motor vehicles; patent no. EP0800987
4. Brake device for motorcycle; patent no. US005620237A
5. MOTORCYCLE HYDRAULIC BRAKE SYSTEM WITH BRAKE FORCE
REGULATOR ; patent no. US4239294
6. DUAL BRAKING DEVICE FOR MOTORCYCLE; patent no. US4598954
7. BRAKING SYSTEM FOR TWO-WHEELERS; patent no. US4850455
8. BRAKING SYSTEM FOR MOTORCYCLE HAVING APPORTIONING
CONTROL; patent no. US5219211
9. MOTORCYCLE BRAKE SYSTEM HAVING DUAL MASTER CYLINDER
PROPORTIONING; patent no. US 5372408
10. TWO WHEELED VEHICLE WITH A PRESSURE ACTUATED COUPLER
BETWEEN EACH ACTUATOR AND WHEEL BRAKE; patent no.
US5501511
11. LINKED BRAKE SYSTEM FOR MOTORCYCLES; patent no.
US7219965B2
12. STRADDLE TYPE VEHICLE INTERLOCKING BRAKE SYSTEM AND
STRADDLE TYPE VEHICLE; patent no. US8905422B2
13. COMBINED BRAKING SYSTEM PARTICULARLY FOR MOTOR
VEHICLES; patent no. US2010/0241330A1
14. STRADDLE TYPE VEHICLE BRAKE SYSTEM AND STRADDLE TYPE
VEHICLE; patent no. US2014/0008139A1
15. Brake inter-linkage device of compact vehicle; Patent no. M513835 (R.O.C.)
16. UNIFORM PROVISIONS CONCERNING THE APPROVAL OF
VEHICLES OF CATEGORIES L1, L2, L3, L4 AND L5 WITH REGARD TO BRAKING,
Addendum 77: Regulation No. 78, Revision 1 (20 July 2007)
17. Uniform provisions concerning the approval of vehicles of categories L1, L2, L3, L4 and L5 with regard to braking, Addendum 77 – Regulation No. 78,
Revision 1 - Amendment 2 (9 November 2015)