Design and Application of Electromechanical Brake System

2014 ◽  
Vol 705 ◽  
pp. 152-156 ◽  
Author(s):  
Xiao Mei Liao
Keyword(s):  
Brake System ◽  
Electrical Machine ◽  
System Software ◽  
Fluid System ◽  
Brake Fluid ◽  
Braking System ◽  
Electromechanical Brake ◽  
Design And Application

Aim at the brake fluid system cannot protect the automobile security effectively, this article analyzes the electromechanical brake system in details. At first, it introduces the theory and the advantage composition of the electromechanical brake system. Then, this article introduces the hardware of EBS system and evaluates the design of EMB electrical machine and electron pedal. At last, it particularly analyzes the system software. This article has significant meaning to the automobile maintainers and the braking system researchers.

scholarly journals Heat transfer problem analysis in three dimension tromol brake system problem

2018 ◽  
Vol 197 ◽  
pp. 01008
Author(s):  
Tulus Tulus ◽  
Sudirman Sudirman ◽  
U. Sinulingga ◽  
T.J. Marpaung
Keyword(s):  
Heat Transfer ◽  
Transfer Problem ◽  
Three Dimensions ◽  
Brake System ◽  
Problem Analysis ◽  
Three Dimension ◽  
Brake Fluid ◽  
Excessive Heat ◽  
Braking System ◽  
Brake Lining

One of the physical problems that can be found in heat transfer is heat transfer to a vehicle brake. In this study a focused vehicle is a motorcycle. Where the heat transfer of the brake system on the motorcycle in this study was completed finite element method. The purpose of this study is to analyse one of the problems of displacement in the three dimensions of the motorcycle brake. So, the results obtained in the form of the best time in the braking for motorcycles. The settlement method is to use one of the partial differential equations for heat transfer. One of them is the Elemenisation model is the braking system. As is known braking system is a system used to slow and stop the vehicle. During the braking phase, the vehicle's kinetic energy will be converted into heat energy due to the friction action of the brake system. The heat flux produced by effects to the brake lining is ideally dissipated into the environment to avoid brake friction pad emissions. The heat produced has a tendency to evaporate the brake fluid and the disc brake surfaces will become hot. Based on the results obtained, when the braking system is in operation, the most significant heat transfer in t = 3.8s. This time is the best time to avoid excessive brake fluid evaporation and the rapid breakdown of the brake surface due to excessive heat.

scholarly journals Design, Analysis and Application of Single-Wheel Test Bench for All-Electric Antilock Braking System in Electric Vehicles

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1294
Author(s):  
Xiangdang XUE ◽  
Ka Wai Eric CHENG ◽  
Wing Wa CHAN ◽  
Yat Chi FONG ◽  
Kin Lung Jerry KAN ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Test Bench ◽  
Potential Candidate ◽  
Vertical Force ◽  
Abs Algorithms ◽  
Braking System ◽  
Vehicle Velocity ◽  
Antilock Braking System ◽  
Antilock Braking ◽  
Electromechanical Brake

An antilock braking system (ABS) is one of the most important components in a road vehicle, which provides active protection during braking, to prevent the wheels from locking-up and achieve handling stability and steerability. The all-electric ABS without any hydraulic components is a potential candidate for electric vehicles. To demonstrate and examine the all-electric ABS algorithms, this article proposes a single-wheel all-electric ABS test bench, which mainly includes the vehicle wheel, the roller, the flywheels, and the electromechanical brake. To simulate dynamic operation of a real vehicle’s wheel, the kinetic energy of the total rotary components in the bench is designed to match the quarter of the one of a commercial car. The vertical force to the wheel is adjustable. The tire-roller contact simulates the real tire-road contact. The roller’s circumferential velocity represents the longitudinal vehicle velocity. The design and analysis of the proposed bench are described in detail. For the developed prototype, the rated clamping force of the electromechanical brake is 11 kN, the maximum vertical force to the wheel reaches 300 kg, and the maximum roller (vehicle) velocity reaches 100 km/h. The measurable bandwidth of the wheel speed is 4 Hz–2 kHz and the motor speed is 2.5 Hz–50 kHz. The measured results including the roller (vehicle) velocity, the wheel velocity, and the wheel slip are satisfactory. This article offers the effective tools to verify all-electric ABS algorithms in a laboratory, hence saving time and cost for the subsequent test on a real road.

Master cylinder pressure reduction logic for cooperative work between electro-hydraulic brake system and anti-lock braking system based on speed servo system

2020 ◽  
Vol 234 (13) ◽  
pp. 3042-3055
Author(s):  
Lu Xiong ◽  
Wei Han ◽  
Zhuoping Yu ◽  
Jian Lin ◽  
Songyun Xu
Keyword(s):  
Feedback Control ◽  
Closed Loop ◽  
Servo System ◽  
Brake System ◽  
Extreme Condition ◽  
Pressure Reduction ◽  
Cylinder Pressure ◽  
Master Cylinder ◽  
Braking System ◽  
Hydraulic Brake

As one feasible solution of brake-by-wire systems, electro-hydraulic brake system has been made available into production recently. Electro-hydraulic brake system must work cooperatively with the hydraulic control unit of anti-lock braking system. Due to the mechanical configuration involving electric motor + reduction gear, the electro-hydraulic brake system could be stiffer in contrast to a conventional vacuum booster. That is to say, higher pressure peaks and pressure oscillation could occur during an active anti-lock braking system control. Actually, however, electro-hydraulic brake system and anti-lock braking system are produced by different suppliers considering brake systems already in production. Limited signals and operations of anti-lock braking system could be provided to the supplier of electro-hydraulic brake system. In this work, a master cylinder pressure reduction logic is designed based on speed servo system for active pressure modulation of electro-hydraulic brake system under the anti-lock braking system–triggered situation. The pressure reduction logic comprises of model-based friction compensation, feedforward and double closed-loop feedback control. The pressure closed-loop is designed as the outer loop, and the motor rotation speed closed-loop is drawn into the inner loop of feedback control. The effectiveness of the proposed controller is validated by vehicle experiment in typical braking situations. The results show that the controller remains stable against parameter uncertainties in extreme condition such as low temperature and mismatch of friction model. In contrast to the previous methods, the comparison results display the improved dynamic cooperative performance of electro-hydraulic brake system and anti-lock braking system and robustness.

Characteristics of Water Absorption in a Brake Fluid System Containing 3,6,9-Trioxadecanol and its Borate Esters

2001 ◽  
Vol 55 (10) ◽  
pp. 1422-1425
Author(s):  
Wioletta Herzog ◽  
Maciej Wiśniewski ◽  
Wiesław Hreczuch
Keyword(s):  
Water Absorption ◽  
Fluid System ◽  
Brake Fluid ◽  
Borate Esters

Study and Application of Electronic Technology in Automobile Brake System

2014 ◽  
Vol 1049-1050 ◽  
pp. 646-648
Author(s):  
Xiao Ling Mo
Keyword(s):  
Rapid Development ◽  
Present Situation ◽  
Brake System ◽  
Electronic Technology ◽  
Braking System ◽  
Vehicle Technology ◽  
Vehicle Security

Vehicle braking system in vehicle security plays an important role.In recent years, with the progress of vehicle technology and improvement of the car speed, the rapid development of electronic technology provides a more broad space of development to the braking system. Based on the use of electronic technology in automobile braking system present situation as the research object, the application of electronic technology in automobile braking system has carried on the detailed exploration and research, to promote the further study of electronic technology in automobile braking system and the application.

Design of a New Crawler Chassis Brake System

2014 ◽  
Vol 635-637 ◽  
pp. 1224-1227
Author(s):  
Xiao Rong Lü ◽  
Xiao Lian Lü
Keyword(s):  
Walking Speed ◽  
Brake System ◽  
Light Weight ◽  
Compact Structure ◽  
Braking System ◽  
Slow Walking ◽  
New Type ◽  
Structure Light ◽  
Slow Walking Speed ◽  
Speed Characteristic

This paper designs a new type of the crawler chassis brake system, which is suitable for crawler travel system slow walking speed. Characteristic of braking system has simple and compact structure, light weight, flexible use, convenient assembly and disassembly, large braking force, good braking effect, etc., can solve small crawler chassis brake problem very well.

Design and Manufacturing of a Clutch and Brake System for Indoor Tire Testing

2017 ◽  
Author(s):  
Aamir K. Khan ◽  
Corina Sandu
Keyword(s):  
Rolling Resistance ◽  
Brake System ◽  
Main Task ◽  
Test Rig ◽  
Braking Performance ◽  
Current Configuration ◽  
Braking System ◽  
Actuation System ◽  
Clutch System ◽  
Transmission Shaft

The primary goal of this work is to implement a clutch and brake system on the single tire Terramechanics rig of Advanced Vehicle Dynamics Laboratory (AVDL) at Virginia Tech. This test rig was designed and built to study the performance of tires in off-road conditions on surfaces such as soil, sand, and ice. Understanding the braking performance of tires is crucial, especially for terrains like ice, which has a low coefficient of friction. Also, rolling resistance is one of the important aspects affecting the tractive performance of a vehicle and its fuel consumption. Investigating these experimentally will help improve tire models performance. The current configuration of the test rig does not have braking and free rolling capabilities. This study involves modifications on the rig to enable free rolling testing when the clutch is disengaged and to allow braking when the clutch is engaged and the brake applied. The first part of this work involves the design and fabrication of a clutch system that would not require major changes in the setup of the test rig; this includes selecting the appropriate clutch that would meet the torque requirement, the size that would fit in the space available, and the capability to be remotely operated. The test rig’s carriage has to be modified in order to fit a pneumatic clutch, its adapter, a new transmission shaft, and the mounting frame for the clutch system. The components of the actuation system consisting of pneumatic lines, the pressure regulator, valves, etc., have to be installed. Easy operation of the clutch from a remote location is enabled through the installation of a solenoid valve. The second part of this work is to design, fabricate, and install a braking system. The main task is to design a customized braking system that satisfies the various physical and functions constraints of the current configuration of the Terramechanics rig. Some other tasks are: design and fabrication of a customized rotor, selection of a suitable caliper, and design and fabrication of a customized mounting bracket for the caliper. A hydraulic actuation system is selected, since it is suitable for this configuration and enables remote operation of the brake. Finally, the rig is calibrated for the new testing configurations.

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