Modeling and Simulation of Energy‐Regenerative Active Suspension Based on BP Neural Network PID Control

Liu, Jiang; Li, Xinjun; Zhang, Xilong; Chen, Xiufeng

doi:10.1155/2019/4609754

Cited by 30 publications

(21 citation statements)

References 22 publications

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“…Accordingly, the dynamics of nonlinear automobile shock absorbers [1] and the evaluation of shock absorber models [2] have been proposed so far. e hydraulic shock absorber uses the oil system to convert the vibration energy of the piston into the hydraulic energy of the damping oil, which drives the hydraulic motor in the system to rotate and drive the generator to generate the electricity [3,4]. Hsieh put forward a semiactive electromechanical suspension, which can control the damper requirements to recover the energy in accordance with the generating voltage of the generator.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Damping Characteristics of a Hydraulic Shock Absorber

Yang

et al. 2021

Shock and Vibration

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In the present study, a hydraulic shock absorber is proposed. Since the damper is mainly used in suspension energy recovery system, the damping characteristics of the damper under no-load state are studied in this paper. Structural design is conducted so that the unidirectional flow of the oil drives the hydraulic motor to generate electricity. Meanwhile, an asymmetrical extension/compression damping force is obtained. A mathematical model of the shock absorber is established, and the main characteristics of the inherent damping force are obtained. Based on the established model, effects of the accumulator volume, accumulator preinflation pressure, hydraulic motor displacement, check valve inner diameter, and spring stiffness, hydraulic line length and inner diameter on the indicator characteristics are analyzed. Moreover, a series of experiments are conducted on the designed damper to evaluate the characteristics of the inherent damping force and analyze the effect of the accumulator volume and preinflation pressure on the damping characteristics.

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Section: Introductionmentioning

confidence: 99%

Analysis of Damping Characteristics of a Hydraulic Shock Absorber

Yang

et al. 2021

Shock and Vibration

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“…Active suspension can effectively improve vehicle riding comfort and handling stability by outputting active force of the actuator [1][2][3]. However, the active suspension actuator needs to consume a large amount of external energy and it reduces the economic performance of the vehicle [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Endocrine Composite Skyhook-Groundhook Control of Electromagnetic Linear Hybrid Active Suspension

Kou

Jing

Chen

et al. 2020

Shock and Vibration

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In order to effectively improve vehicle riding comfort, handling stability, and realize vibration energy recovery, a new kind of electromagnetic linear hybrid active suspension (EMLHAS) integrated with linear motor and solenoid valve shock absorber is put forward. Firstly, for the analysis of the suspension performance, a quarter dynamic model of EMLHAS is established. At the same time, the mathematical models of a linear motor, including the active state and energy-regenerative state, are found. The correctness of mathematical models for the linear motor in the active and energy-regenerative states is verified by means of characteristic tests. Moreover, the velocity characteristic tests of solenoid valve shock absorber are carried out to determine its mathematical polynomial model in the semiactive state. Then, a new kind of multimode endocrine composite skyhook-groundhook control strategy is proposed. The suspension motion is divided into four modes according to the driving conditions of the vehicle. An endocrine control with long feedback and short feedback is combined with the skyhook-groundhook control. The control laws of the skyhook-groundhook controller and endocrine controller are, respectively, designed. Finally, the simulation analysis of suspension dynamic performance and energy-regenerative characteristic is done. The results show the control effect of endocrine composite skyhook-groundhook control is better than that of skyhook-groundhook control, which improves vehicle riding comfort and handling stability. Moreover, part of vibration energy is recovered.

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“…Li and Zhang both simulation and test results tested the energyregenerative shock absorber based on rack and pinion mechanism, was proved to be feasible [12,13]. Liu has stimulated, and modelling of energy regenerative shock absorber develop another system with rotary motor-HESA to obtain higher efficiency and better reliability [14]. Recently Yousaf has been proposed an advanced hydraulic regenerative shock absorber recovered and recovered 4% suspension energy by using one accumulator [15].…”

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Energy Harvesting By Using Hydraulic Electromagnetic Regenerative Shock Absorber

Iqbal

Wu²,

Mahmood

2020

Preprint

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This article intends a hybrid energy harvesting shock absorber design which comprehends energy harvesting of automobile suspension vibration dissipation. A mathematical model of the energy harvesting prototype is established, and simulation results show that the dissipation energy can be recovered by varying the feed module, thereby got the damping forces ratio at different compression and extension stroke. The energy conversion from hydraulic energy to mechanical energy mainly then mechanical energy converted into electrical energy furthermore we can rechange our battery from this recovered energy. The advanced mathematical model and prototype proposed maximum ride comfort meanwhile recovered the suspension energy and fuel saving. This article shows the simulation results verifying it with prototype test results. The damping force of expansion stroke is higher than the damping force of compression stroke. The damping characteristics curves and speed characteristics curves verify the validity by simulation and prototyping damper at different amplitudes of off-road vehicles. The Hydraulic Electromagnetic Regenerative Shock Absorber (HESA) prototype characteristic is tested in which 65 watts recovered energy at 1.67 Hz excitation frequency. So, 14.65% maximum energy recovery efficiency got at 20 mm rod diameter and 8 cc/rev motor displacement. The damping characteristics of the HESA prototype examined and it has ideal performance as the standard requirements of the National Standard QC/T 491–1999.

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Modeling and Simulation of Energy‐Regenerative Active Suspension Based on BP Neural Network PID Control

Cited by 30 publications

References 22 publications

Analysis of Damping Characteristics of a Hydraulic Shock Absorber

Analysis of Damping Characteristics of a Hydraulic Shock Absorber

Endocrine Composite Skyhook-Groundhook Control of Electromagnetic Linear Hybrid Active Suspension

A High-Efficiency Energy Harvesting By Using Hydraulic Electromagnetic Regenerative Shock Absorber

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