Modeling and control of an electronic wedge brake

Han, Kyutae; Kim, Myoungjune; Huh, Kunsoo

doi:10.1177/0954406211435584

Cited by 28 publications

(23 citation statements)

References 10 publications

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“…EWB uses the wedge-shaped self-exciting effect to obtain sufficient clamping force, which Siemens first introduced, as shown in Figure 5 [25,26]. Like EMB, EWB also uses torque motor to provide driving force; unlike EMB, the force amplification structure of EWB is wedge-shaped self-amplifying mechanism, rather than gear mechanism [27,28].…”

Section: Electro-wedge Brakementioning

confidence: 99%

“…Like EMB, EWB also uses torque motor to provide driving force; unlike EMB, the force amplification structure of EWB is wedge-shaped self-amplifying mechanism, rather than gear mechanism [27,28]. After the motor enters the block state, the motor torque is first converted into force by ball screw mechanism, and then the wedge-shaped self-amplifying mechanism enlarges the force to slow the wheel down [26,29]. There are two types of EWB: upper wedge and lower wedge, as shown in Figure 6 [30].…”

Section: Electro-wedge Brakementioning

confidence: 99%

“…The research process is mainly divided into two steps: simulation and test verification. 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%

“…The caliper force is a function of the friction plate displacement, which is called a caliper characteristic curve. The caliper force can be indirectly estimated by measuring the friction plate displacement or the motor rotor angular displacement and while using the brake dynamics model, caliper characteristic curves, and estimation algorithms [26,27,52]. The braking process is divided into non-contact state and contact state, according to whether the friction plate and brake disc are in contact.…”

Section: Caliper Force/braking Force Estimationmentioning

confidence: 99%

“…However, the EWB cannot be practically implemented unless the self-energizing effect is effectively controlled. In response to this problem, Han proposed the sliding mode controller with two structures, one using the estimated clamping force and the other using the measured clamping force, as shown in Figure 11 [26]. In Figure 11, the estimated clamping force is obtained as:…”

Section: Sliding Mode Controlmentioning

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: Electro-wedge Brakementioning

confidence: 99%

Section: Electro-wedge Brakementioning

confidence: 99%

Section: Design Of Actuator Controllermentioning

confidence: 99%

Section: Caliper Force/braking Force Estimationmentioning

confidence: 99%

Section: Sliding Mode Controlmentioning

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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Improved adaptive robust control of direct-drive pump-valve cooperative brake-by-wire unit with disturbance compensation

Tan,

Yu,

Jiang

et al. 2024

Smart Mater. Struct.

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Aiming at the needs of high-level autonomous driving, a direct-drive pump-valve coordinated brake-by-wire unit was designed. To improve the response speed, control accuracy, and robustness of the brake-by-wire unit, an improved adaptive robust control method (AIRC-AF) based on a novel adaptive law and disturbance compensation was proposed. By integrating pressure tracking error information and overall parameter estimation error information, a novel parameter adaptive law with fast convergence speed was designed. A finite-time disturbance observer was designed to observe the overall system disturbance, improving the system's anti-disturbance performance. Finally, the stability of the control method was proven using the Lyapunov stability proof method. The results show that under sinusoidal target signals and triangular wave target signals, AIRC-AF has better response speed and control accuracy. In conditions such as increased permanent magnet temperature, increased coil resistance, or reduced flow area due to hydraulic pipeline blockage, AIRC-AF has better adaptability. The unit and the method can meet the demand for precise braking force control in high-level autonomous driving.

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Design and Control of New Brake-by-Wire Actuator for Vehicle Based on Linear Motor and Lever Mechanism

Xiao

Gong

et al. 2021

IEEE Access

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The brake-by-wire actuator was considered to be the next generation of vehicle brake, which uses cables to transmit signals and energy, and uses electric motor instead of hydraulic element or pneumatic element. This paper designs a new type of brake-by-wire actuator based on the special linear motor. First, the structure, composition and working principle of the linear motor are explained. Secondly, the caliper structure and amplification mechanism of the actuator are designed. Thirdly, the controller and control strategy based on dSPACE platform are introduced in detail. Finally, the electromechanical parameters of actuator were identified, and the experiment of the linear motor and brake-by-wire actuator were completed. The experiment results show that the new actuator has the advantages of fast braking response, low control difficulty and high control accuracy, etc. In conclusion, this paper provides a new design scheme for the brake-by-wire actuator, and has the potential to further research and replace the traditional hydraulic braking system.

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Modeling and control of an electronic wedge brake

Cited by 28 publications

References 10 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

Improved adaptive robust control of direct-drive pump-valve cooperative brake-by-wire unit with disturbance compensation

Design and Control of New Brake-by-Wire Actuator for Vehicle Based on Linear Motor and Lever Mechanism

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