This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Research and Simulation of Electro-Hydraulic Braking System Based on Integrated Master Cylinder
Technical Paper
2015-01-0159
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Analogous to a vacuum boosted system, Electro-Hydraulic Braking System (EHB) is free from engine vacuum and supplies a braking force proportional to driver input. The independence of engine vacuum makes it especially suitable to be used in electric vehicles (EVs) and hybrid electric vehicles (HEVs). As a key component of EHB, master cylinder is driven by the pump rather than the vacuum booster. Even if the pump fails, the cylinder can also build proper pressure. Meanwhile, in order to maintain the pedal feeling, a pedal stroke simulator is applied in the system.
In this paper, aiming at decreasing the size and cost of master cylinder and providing an ideal pedal feeling without compromise of performance, a new integrated master cylinder of EHB system is designed including two parts: master cylinder and pedal stroke simulator. The key components of the integrated master cylinder are motor pump, solenoid valves and composite springs. A model of the EHB and other key components of the brake system are established in AMEsim-MATLAB/SIMULINK. AMEsim is responsible for hydraulic part while SIMULINK for control part. Some parameters of the components are discussed to research their effects on system performance. In addition, to verify the system availability, the PWM method is adopted to regulate the fluid pressure in the pressure following control. Finally, braking performance is tested under three modes through the match of EHB model and vehicle model in CarSim. The simulation result demonstrates that the EHB system not only can satisfy the demands of braking system, but also conform to ideal stroke-force curve.
Authors
Citation
Tan, Z., Chen, Z., Pei, X., Zhang, J. et al., "Research and Simulation of Electro-Hydraulic Braking System Based on Integrated Master Cylinder," SAE Technical Paper 2015-01-0159, 2015, https://doi.org/10.4271/2015-01-0159.Also In
References
- Reuter , D. , Lloyd , E. , Zehnder , J. , and Elliott , J. , Hydraulic Design Considerations for EHB Systems SAE Technical Paper 2003-01-0324 2003 10.4271/2003-01-0324
- Jonner , W. , Winner , H. , Dreilich , L. , and Schunck , E. , Electrohydraulic Brake System - The First Approach to Brake-By-Wire Technology SAE Technical Paper 960991 1996 10.4271/960991
- Nakamura , E. , Soga , M. , Sakai , A. , Otomo , A. et al. Development of Electronically Controlled Brake System for Hybrid Vehicle SAE Technical Paper 2002-01-0300 2002 10.4271/2002-01-0300
- Soga , M. , Shimada , M. , Sakamoto , J. , and Otomo , A. , Development of vehicle dynamics management system for hybrid vehicles: ECB system for improved environmental and vehicle dynamic performance JSAE Review 23 2002 459 464
- Continental Teve AG & Co. oHG Hydraulic Vehicle Brake System
- Oshima , T. , Fujiki , N. , Nakao , S. , Kimura , T. et al. Development of an Electrically Driven Intelligent Brake System SAE Int. J. Passeng. Cars - Mech. Syst. 4 1 399 405 2011 10.4271/2011-01-0568
- Wang , Z. , Yu , L. , Wang , Y. , You , C. et al. Prototype of Distributed Electro-Hydraulic Braking System and its Fail-Safe Control Strategy SAE Technical Paper 2013-01-2066 2013 10.4271/2013-01-2066
- Liu , Y. , Sun , Z. , and JI , W. , Development of Composite Brake Pedal Stroke Simulator for Electro-Hydraulic Braking System SAE Technical Paper 2014-01-0117 2014 10.4271/2014-01-0117
- Wu , D. , Ding , H. , Guo , K. , and Wang , Z. , Experimental Research on the Pressure Following Control of Electro-Hydraulic Braking System SAE Technical Paper 2014-01-0848 2014 10.4271/2014-01-0848
- Standardization Administration of the People's Republic of China Safety Specifications for Power-driven Vehicles Operating on Roads GB 7258-2012, Rev. Sept. 2012
- Standardization Administration of the People's Republic of China Road Vehicle-Braking Systems-Structure, Performance and Test Method GB 12676-1999, Rev. Jan. 1999