Research on Height Adjustment Characteristics of Heavy Vehicle Active Air Suspension Based on Fuzzy Control

The suspension system’s performance has a direct impact on the ride comfort, handling stability, and driving safety of heavy vehicles. The active air suspension of heavy vehicles can adjust the stiffness, damping parameters, and body height in real-time based on different road conditions. This adjus...

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Bibliographic Details
Published inWorld electric vehicle journal Vol. 14; no. 8; p. 210
Main Authors Bai, Xin, Lu, Liqun, Zhang, Can, Geng, Wenpeng
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2023
Subjects
Acceleration
active air suspension
Active control
Air bags
Air springs
Algorithms
Body height
control strategy
Controllers
Damping
Design techniques
Driving ability
Fuzzy control
fuzzy PID
Heavy duty trucks
heavy vehicle
Heavy vehicles
Optimization
Parameters
Passenger comfort
Performance evaluation
Pneumatics
Proportional integral derivative
Research methodology
Road conditions
Sensors
Shock absorbers
simulation
Suspension systems
Traffic speed
Vehicle safety
Vehicles
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Summary:The suspension system’s performance has a direct impact on the ride comfort, handling stability, and driving safety of heavy vehicles. The active air suspension of heavy vehicles can adjust the stiffness, damping parameters, and body height in real-time based on different road conditions. This adjustment ensures that the entire vehicle experiences a smooth ride while also making vehicle loading and unloading more labor efficient. Additionally, the active air suspension system enables the vehicle to achieve automation and intelligence. This study focused on a particular 6 × 4 heavy vehicle and designed an active air suspension system that aligns with the vehicle parameters of the heavy truck. Through the use of a fuzzy PID active control strategy, this study investigated and analyzed the height adjustment of the air spring. The results indicate that at a vehicle speed of 60 km/h on a class A road surface, the vehicle body’s vertical acceleration was reduced by 22.1%, and the dynamic travel of the suspension was reduced by 20.1%. This indicates that the fuzzy PID active air suspension system effectively reduces the vehicle’s vibrations and improves ride comfort.
ISSN:2032-6653
2032-6653
DOI:10.3390/wevj14080210