Control of Novel Integrated-Electro-Hydraulic Brake System for Automotive

Xu, Songyun; Yu, Zhuoping; Liu, Xiong

doi:10.4271/2015-01-2699

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…In order to mitigate the static friction, the dither-based compensation method is employed, and the critical parameters of dither signal are selected through the experimental tests. 16…”

Section: Friction Characterizationmentioning

confidence: 99%

“…In this paper, the high-frequency sinusoidal signal is added to the control input to enhance the control performance. It is indicated in Xu et al 16 that the amplitude and frequency of dither signal are related to the pressure working point, respectively. The orthogonal test including amplitude and frequency of dither signal is designed.…”

Section: Pressure Control Strategy Via Fusion Of Control Signalsmentioning

confidence: 99%

“…In order to mitigate the static friction, the dither-based compensation method is employed, and the critical parameters of dither signal are selected through the experimental tests. 16 In order to investigate the mechanical efficiency h m in equation 3, some experiments through the HILS have been conducted. As shown in Figure 5, h m keeps near 80% on the majority of operation point (particularly on the large position point), as the mechanical efficiency is negatively influenced by friction loss.…”

Section: Friction Force Increases With the Increasing Pistonmentioning

confidence: 99%

“…Nevertheless, the control complexity of the LuGre model, that is, high requirement to system state feedback signal and a large amount of parameter identification, impedes its usage. In Xu et al, 16 an algorithm that uses small amounts of random noise based on dithering has been proposed to compensate for friction. However, the dithering compensation algorithm may consume the energy more.…”

Section: Introductionmentioning

confidence: 99%

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A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

Han

Liu

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

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With the development of electro-hydraulic brake system in the automotive application, pressure control is at the top of a brake system engineer’s agenda. This work focuses on the development of a pressure-loop controller for a motor-type electro-hydraulic brake system, which is composed of an electro-mechanical actuator and a hydraulic link. The pressure control issue of motor-type electro-hydraulic brake system is influenced intensely by the nonlinearities (i.e. friction) and uncertainties (e.g. temperature variation, brake pad wear, and so on) of the system and by the very demanding performance specifications (i.e. supporting cooperative work with hydraulic control unit of anti-lock brake system). The pressure control of motor-type electro-hydraulic brake system is investigated, and a novel pressure–based control strategy via fusion of control signals is proposed to improve the pressure tracking performance. The control strategy comprises online model–based friction compensation, online dither–based friction compensation, and feedback control. Four original contributions make this work distinctive from the existing relevant literature. Selecting the Coulomb+viscous friction model can maximize to reduce difficulty of parameter identification and Stribeck effects detection based on maintaining the pressure tracking accuracy. Thanks to the model-based friction compensation torque, the signal magnitude of dither-based friction compensation torque can be decreased so that the vehicle comfort can be improved. The compensation parameters of both the model-based and dither-based friction compensation can be online modified according to the operating point of system. The robustness of the fusion controller is enhanced by employing the sliding mode control algorithm with conditional integrator. The performance of the proposed control strategy is evaluated by hardware-in-the-loop-simulation and vehicle experiment in typical braking situations. The experimental results with fusion control show improved pressure tracking performance in comparison with that without fusion control.

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“…In order to mitigate the static friction, the dither-based compensation method is employed, and the critical parameters of dither signal are selected through the experimental tests. 16…”

Section: Friction Characterizationmentioning

confidence: 99%

Section: Pressure Control Strategy Via Fusion Of Control Signalsmentioning

confidence: 99%

Section: Friction Force Increases With the Increasing Pistonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

Han

Liu

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

Self Cite

View full text Add to dashboard Cite

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Braking pressure control in electro-hydraulic brake system based on pressure estimation with nonlinearities and uncertainties

Han

Liu

2019

Mechanical Systems and Signal Processing

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Review of Brake-by-Wire Technology for Low-Speed and Autonomous Vehicles

Ji,

Zheng,

et al. 2024

WEVJ

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With advancements in autonomous driving and intelligent transportation, the need for responsive, stable braking systems in low-speed vehicles (LSVs) has risen, especially in complex conditions where traditional systems fall short. Brake-by-Wire (BBW) systems, known for their efficiency, energy savings, and safety, are becoming increasingly popular. This paper provides a systematic review of BBW technology for low-speed vehicles (LSV-BBW), aiming to offer valuable insights for researchers, engineers, and decision-makers in related fields. This comprehensive review covers the application of BBW and its associated technologies in LSVs. First, the current state of research on BBW systems is assessed, both domestically and internationally. Next, the fundamental principles and components of LSV-BBW technology are detailed. Following this, the control strategies of the LSV-BBW system are elaborated, with a clear definition of its performance metrics and identification of the key technologies involved. By analyzing the current trends in LSV-BBW technology development, this paper highlights cutting-edge advancements in the field. Finally, the significance and application prospects of LSV-BBW technology in promoting the intelligent, safe, and efficient development of LSVs are emphasized.

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Control of Novel Integrated-Electro-Hydraulic Brake System for Automotive

Cited by 4 publications

References 5 publications

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

Braking pressure control in electro-hydraulic brake system based on pressure estimation with nonlinearities and uncertainties

Review of Brake-by-Wire Technology for Low-Speed and Autonomous Vehicles

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