Hardware-in-the-Loop Simulation of Brake-by-Wire Systems with FlexRay Communication

Lee, Kyung-Jung; Kwon, Jae-Min; Cheon, Jae-Seung; Ahn, Hyun-Sik

doi:10.4271/2014-01-2530

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…In the simulation phase, the professional software, such as Maxwell, AMESim, and Simulink, are used to establish the actuator's finite element model, dynamic model, and controller model, and the analysis tools and optimization theories are used to optimize the actuator and controller [26,46]. In the test phase, dSPACE is firstly used to complete software-in-the-loop (SIL) and hardware-in-the-loop (HIL) verification; and then, the actual vehicle test is completed to comprehensively evaluate the BBW system [9,10,47,48].…”

Section: Design Of Actuator Controllermentioning

confidence: 99%

“…Generally, there are three ways to improve the reliability and security of BBW. The first way is to improve the inherent reliability and reduce the failure probability by using reliability theory and reliability design methods [79]; the second way is to enable the BBW system have sufficient braking capability in the case of partial failure by using fault tolerant technology [48,80,81]; and, the third way is to detect and diagnose the fault in real time, and to remind the driver to repair the fault in time by fault diagnosis technology [77,82].…”

Section: Redundancy Of Bbw Systemmentioning

confidence: 99%

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Review on the Development, Control Method and Application Prospect of Brake-by-Wire Actuator

Gong

Yan

et al. 2020

Actuators

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This paper reviews and summarizes the development, key technologies, and application of brake-by-wire (BBW) actuators. BBW is the technology orientation of future vehicle brake system. The main feature of BBW is to replace some of the mechanical and hydraulic components of traditional brake system with electronic control components, and use cables and wires to transmit energy and signals. BBW actuators have outstanding advantages, such as fast response, accurate control, and compact structure. They are easy to integrate with active safety functions and they are easily matched with the regenerative braking systems of electric vehicle. First, this paper summarizes the classification, characteristics, performance, and architecture of BBW actuators. Subsequently, the braking process regulation of vehicle is considered to be the main target, which is summarized from two aspects of actuator regulation and braking force distribution. The state estimation algorithm and control algorithm applied to these actuators are summarized and analyzed, and the development trend, challenges, and schemes of the braking force distribution are proposed. The development and research trend of braking force match strategies between the regenerative brake system and BBW system are also analyzed and summarized. The further electrification and intelligence of vehicle demand BBW's braking force control method and distribution method must have higher control accuracy, stronger robustness, and wider adaptability, and the effects on braking comfort and handling stability must be further discussed.Actuators 2020, 9, 15 2 of 24 new features [2,3]. The additional functions, such as ABS and ESP, require additional devices, such as high-speed solenoid valves, oil return pumps, and return lines. Therefore, the structure of hydraulic brake system is becoming increasingly complex, and the maintenance is also becoming more and more difficult [4,5]. At present, new energy vehicles, such as electric vehicles (EV), hybrid electric vehicles (HEV), and fuel cell electric vehicles (FCEV), are developing rapidly and are highly concerned by major automotive manufacturers. However, most electric vehicles still use hydraulic brake system. On the one hand, the electric vehicles cannot use vacuum boosters to provide auxiliary force. The electric hydraulic pump must first be used to increase the hydraulic pressure, and then delivers the high pressure to each wheel. The electric energy needs to be converted and then transmitted multiple times in this process, so the energy utilization efficiency is not high, and there is the potential danger of brake fluid leakage. On the other hand, the hydraulic brake system cannot accurately and independently regulate the braking force, so it cannot be well matched with the regenerative brake system of EV and HEV [6].Actuators 2020, 9, 15 2 of 24 hydraulic brake system is becoming increasingly complex, and the maintenance is also becoming more and more difficult [4,5]. At present, new energy vehicles, such as electric vehicles (EV)...

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Section: Design Of Actuator Controllermentioning

confidence: 99%

Section: Redundancy Of Bbw Systemmentioning

confidence: 99%

Review on the Development, Control Method and Application Prospect of Brake-by-Wire Actuator

Gong

Yan

et al. 2020

Actuators

View full text Add to dashboard Cite

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A Study on the Clamping Force Estimation and Failsafe Control Algorithm Design of the Electronic Wedge Brake System

Chung

Lee²

2016

Transactions of the Korean Society of Automotive Engineers

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: The EWB(electronic wedge brake) is one in which the braking force is developed in a wedge and caliper system and applied to a disk and wedge mechanism. The advantage of the wedge structure is that it produces self-reinforcing effect and hence, utilizes minimal motor power, resulting in reduced gear and current. The extent of use of clamping force sensors and protection from failure of the EWB system directly depends on the level of vehicle mass production. This study investigated the mathematical equations, simulation modeling, and failsafe control algorithm for the clamping force sensor of the EWB and validated the simulations. As this EWB system modeling can be applied to motor inductance, resistance, screw inertia, stiffness, and wedge mass and angle, this study could improve the accuracy of simulation of the EWB. The simulation results demonstrated the braking force, motor speed, and current of the EWB system when the driver desired to the step and pulse the brake force inputs. Moreover, this paper demonstrated that the proposed failsafe control algorithm accurately detects faults in the clamping force sensor, if any.

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Hardware-in-the-Loop Simulation of Brake-by-Wire Systems with FlexRay Communication

Cited by 2 publications

References 17 publications

Review on the Development, Control Method and Application Prospect of Brake-by-Wire Actuator

Review on the Development, Control Method and Application Prospect of Brake-by-Wire Actuator

A Study on the Clamping Force Estimation and Failsafe Control Algorithm Design of the Electronic Wedge Brake System

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