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Genetic Algorithm Optimization of LQR Controller for Vehicle Vertical Dynamics
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Ping Wang, Yiming Wang
Automotive Engineer | 2026, (6) : 31 - 36
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Automotive Engineer | 2026, (6): 31-36
Genetic Algorithm Optimization of LQR Controller for Vehicle Vertical Dynamics
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Ping Wang, Yiming Wang
Affiliations
  • BYD Auto Industry Co., Ltd., Shenzhen 518100
Published: 2026-06-15 doi: 10.20104/j.cnki.1674-6546.20240418
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In order to improve smoothness and ride comfort of the vehicle, this paper proposes a Genetic Algorithm (GA) optimization method to address the subjectivity and limitations of performance optimization of Linear Quadratic Regulators (LQR) in the vertical dynamic system of vehicles. Firstly, a vertical dynamic model of the vehicle is established, an LQR controller is designed, and genetic algorithm is introduced for parameter optimization. The simulation results show that compared with passive suspension, the controller optimized by genetic algorithm demonstrates better control effect in performance index including body acceleration, suspension dynamic travel and tire dynamic displacement.

Vertical dynamics  /  LQR control  /  Genetic algorithm  /  Parameter optimization
王平, 王一鸣. 面向车辆垂向动力学LQR控制器的遗传算法优化. 汽车工程师, 2026 , (6) : 31 -36 . DOI: 10.20104/j.cnki.1674-6546.20240418
Ping Wang, Yiming Wang. Genetic Algorithm Optimization of LQR Controller for Vehicle Vertical Dynamics[J]. Automotive Engineer, 2026 , (6) : 31 -36 . DOI: 10.20104/j.cnki.1674-6546.20240418
Year 2026 volume Issue 6
190
53
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doi: 10.20104/j.cnki.1674-6546.20240418
  • Online Date:2026-09-20
  • Published:2026-06-15
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  • Revised:2025-02-18
Affiliations
    BYD Auto Industry Co., Ltd., Shenzhen 518100
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表12种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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