Vehicle Height Control of Automotive Air Suspension System Using Fuzzy Neural Network Approach

Shan, Hong Yan

doi:10.4028/www.scientific.net/amm.727-728.781

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The maximum air pressure of the air pump used in this test platform is 1.5 MPa, and its main function is to automatically replenish the air to 1.1 MPa when the air pressure in the air storage tank is lower than 0.4 MPa and maintain the pressure in the air storage tank. The charging and discharging process of the air storage tank can be regarded as an adiabatic process, and according to Hypothesis 5, its characteristics can be expressed according to the first theorem of variable mass thermodynamics [17].…”

Section: Hypothesismentioning

confidence: 99%

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Development of Static Test Equipment and a System for Lever-Loaded Air Springs

Zhao,

Zhang,

et al. 2024

Actuators

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In light of the heavy load applied by traditional air spring test equipment and its complex structural system design, a lever-type torque loading air spring test system is designed. It adopts the principle of Chinese scales to apply the load on the air spring in the form of proportional amplification, which can apply a simulated load on the air spring of 500–800 kg, using the vertical sliding shaft as the transverse limit to make the air spring elongate and compress by 280 mm in the longitudinal direction. The measurement and control system of the test equipment is then developed based on the LabVIEW platform, and the required sensors are selected and installed. The system can achieve real-time data acquisition of the air pressure, load, height and other parameters of the air spring and air spring charging and discharging control. Following the debugging of the function of the test equipment, the function of each subsystem is normal and able to meet the requirements of air spring characteristic and pressure tightness tests. For small spaces, such as laboratories, by reducing the installation of hydraulic and other oil source systems, avoiding the use of large mass blocks to simulate the loading of air spring loads and optimizing the complex installation and debugging process, this miniaturized design for air spring test equipment has benefits for practical applications.

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Section: Hypothesismentioning

confidence: 99%

“…cess of the air storage tank can be regarded as an adiabatic process, an pothesis 5, its characteristics can be expressed according to the first mass thermodynamics [17].…”

Section: Measurement and Control System Design 41 Measurement And Con...mentioning

confidence: 99%

Development of Static Test Equipment and a System for Lever-Loaded Air Springs

Zhao,

Zhang,

et al. 2024

Actuators

View full text Add to dashboard Cite

show abstract

“…At present, air and hydraulic suspensions are generally adopted to adjust vehicle body height. [1][2][3][4][5] However, the air suspension must open and close the solenoid valve to realize airbag inflation and deflation, which has the disadvantages of slow inflation and deflation processes and complex structures. Hydraulic suspensions have high requirements for component sealing and must install supporting devices, which have high costs and high energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Vehicle height control based on active suspension with permanent magnet synchronous linear motor

Liu

Yao

Jia

2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Adjustments in vehicle height and attitude under high-speed steering, emergency obstacle avoidance, and obstacle crossing can significantly improve the safety, mobility, and passing ability of a vehicle. At present, air and hydraulic suspensions are generally used for vehicle body height adjustment, both of which have problems of slow response and complex structures. In this study, a novel method of vehicle body height adjustment based on active suspension with a permanent magnet synchronous linear motor (PMSLM) is proposed. First, active suspension and PMSLM models are established. Then, the vehicle body height controller is designed by hierarchical control, where the upper layer uses PI control to make the vehicle body height track the desired vehicle body height and calculate the desired control force, whereas the lower layer uses the finite control set model predictive current control to make the linear motor track the desired suspension control force. For motor control, the cost function is constructed based on the minimum tracking error between the reference and predicted currents. The forward Euler discrete method is used to deduce the current prediction model for the linear motor. The simulation tests under different road classes and vehicle speeds prove that the active suspension with the PMSLM can effectively adjust the vehicle body height and has a fast response, simple structure, and does not affect ride comfort. The proposed method provides a new concept for short-term vehicle body height adjustments under specific working conditions.

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Vehicle Height Control of Automotive Air Suspension System Using Fuzzy Neural Network Approach

Cited by 2 publications

References 6 publications

Development of Static Test Equipment and a System for Lever-Loaded Air Springs

Development of Static Test Equipment and a System for Lever-Loaded Air Springs

Vehicle height control based on active suspension with permanent magnet synchronous linear motor

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