現行的大型車輛如巴士、卡車或聯結車，使用之煞車系統為氣壓煞車系統，主要由常用煞車(主煞車)加上輔助煞車所構成，而輔助煞車所提供之煞車力並不足以取代主煞車，本研究的目的在於設計一新的煞車機構-備援煞車，在主煞車閥旁再加一備援煞車之氣壓閥，使得在常用煞車失效的情形下，能夠給予足夠的煞車力並直接取代常用煞車，使得車輛能夠繼續安全的行駛至維修點，做為備援的功能且減少意外發生，提高車輛行駛之安全性。
若從零開始設計一新式煞車系統，因成本與實驗進行之問題而難以達成，故本研究欲參考氣壓煞車建模相關文獻建立其數學模型，並以車用模擬軟體Trucksim與車測中心提供之實驗數據加以驗證其正確性，並簡化自建模型以設計備援煞車。最終，整合自建模型、備援煞車模型與Trucksim進行整合式煞車模擬並估算車輛動態，以及評估未來應用於駕駛輔助系統之可能性。

Current brake designs of commercial vehicles are pneumatics brake system generally consist of a primary brake system and an auxiliary brake. The auxiliary braking does not provide enough braking force to fully replace the primary brake. The objective of this research is to assist the development of a new braking mechanism to apply an augmented braking force via a separate pneumatic component. The new braking system is expected to deliver the necessary braking force when the primary brake failure or the primary brake is mal-functioning, the proposed backup braking can provide enough braking force temporarily for the vehicle to be driven to a service location. This new backup is expected to help prevent a significant amount of braking related crashes and enhancing the driving safety of commercial vehicles.
A new math model was created with the help of the literature in MATLAB/Simulink. In order to check the validity of the math model of the newly designed braking system, TruckSim data and experimental data from ARTC was used. Once the math model was verified to be valid, it was combined with a complete vehicle model and then simulations were done to identify the braking performance of the new braking system.In this work, the models of the pneumatics brake and the backup brake will be established and adjusted to assist the development of the backup braking system.

[1] 公路總局嘉義區監理所 何增宋-大型車與交通安全
https://cyi.thb.gov.tw/Doc/100.02.08-國產嘉太廠大型車與交通安全.pdf
[2] Yang, F., Li, G., Hua, J., Li, X., & Kagawa, T. (2017). A New Method for Analysing The Pressure Response Delay in A Pneumatic Brake System Caused by The Influence of Transmission Pipes. Applied Sciences, 7(9), 941.
[3] Subramanian, S. C., Darbha, S., & Rajagopal, K. R. (2004). Modeling The Pneumatic Subsystem of An S-cam Air Brake System. Journal of Dynamic Systems, Measurement, and Control, 126(1), 36-46.
[4] Göhring, E., von Glasner, E. C., & Povel, R. (1992). Engine Braking Systems and Retarders-An Overview from an European Standpoint (No. 922451). SAE Technical Paper.
[5] KUBOMIYA, Tomoyuki; KUWAHARA, Tohru; ARAKI, Kenji. Permanent-magnet-type-retarder in Commercial Vehicles. SAE Technical Paper, 1992.
[6] Acarman, T., Ozguner, U., Hatipoglu, C., & Igusky, A. M. (2000). Pneumatic Brake System Modeling for Systems Analysis (No. 2000-01-3414). SAE Technical Paper.
[7] Haasbeek, J. F. (1994). The New Air Brake System Technology(No. 942289). SAE Technical Paper.
[8] Marwitz, H., Junghans, H., & Fischer, J. (1995). Current Positions and Development Trends in Air Brake Systems for Mercedes-Benz Commercial Vehicles (No. 952303). SAE Technical Paper.
[9] Bauer, F., & Fleischhacker, J. (2015). Hardware-in-the-loop Simulation of Electro-pneumatic Brake Systems (No. 2015-01-2745). SAE Technical Paper.
[10] Patil, J. N., Palanivelu, S., Aswar, V., & Sharma, V. (2015). Mathematical Model to Evaluate and Optimize the Dynamic Performance of Pneumatic Brake System (No. 2015-26-0082). SAE Technical Paper.
[11] Infantini, M. B., Britto, J. F. F. H., & Perondi, E. (2005). Model of An ABS Pneumatic Regenerative Braking System (No. 2005-01-4033). SAE Technical Paper.
[12] Kaisheng, H., Linlin, C., & Zhenhua, J. (2007). Design of Parallel Hybrid Electric Bus with Emphasis on Regeneration Braking (No. 2007-01-3490). SAE Technical Paper.
[13] Zagorski, S. B., & Dunn, A. L. (2005). Braking of Commercial Vehicles Equipped with Air-Disc Brakes from High Speed-Effects on Stopping Distance. SAE transactions, 1-11.
[14] Natarajan, S. V., Subramanian, S. C., Darbha, S., & Rajagopal, K. R. (2007). A Model of The Relay Valve Used in An Air Brake System. Nonlinear Analysis: Hybrid Systems, 1(3), 430-442.
[15] Kluever, C. A. (2015). Dynamic Systems: Modeling, Simulation, and Control. John Wiley & Sons.
[16] He, L., Wang, X., Zhang, Y., Wu, J., & Chen, L. (2011, June). Modeling and Simulation Vehicle Air Brake System. In Proceedings of The 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany (No. 063, pp. 430-435). Linköping University Electronic Press.
[17] 財團法人車輛安全審驗中心 吳信宏-淺談車輛煞車系統http://vsccdms.vscc.org.tw/webfile/Epaper/500000104/File/b9bc56a9-1e5d-4a00-8cd2-aff22342f495.pdf
[18] Andersen, B. W., & Binder, R. C. (1967). The Analysis and Design of Pneumatic Systems. Journal of Applied Mechanics, 34, 1055.
[19] 郭先予，李秉諺，陳俊傑，電動巴士氣壓煞車之失效診斷策略研究，中華民國第二十屆車輛工程學術研討會，大葉大學機械與自動化工程學系，台灣彰化，2015年11月13日。
[20] 陳建安，李秉諺，氣壓煞車備援機制設計與模擬分析，中華民國第二十一屆車輛工程學術研討會，南臺科技大學機械系，台灣台南, 2016年11月18日。
[21] 車輛研究測試中心 試車場部 實車測試課 葉重宇-大客車煞車法規檢測項目概述
https://www.car-safety.org.tw/uploads/Rule/與煞車安全息息相關的法規檢測基準-大客車煞車法規檢測項目概述.pdf