Dynamic ANALYSIS AND CONTROL OF HYDRAULIC BRAKE-BY-WIRE SYSTEM FOR HEAVY-DUTY VEHICLE
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Affiliation:

1.College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China;2.Shanghai Aerospace Control Technology Institute, Shanghai, 201109, China

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Fund Project:

The project supported by the National Natural Science Foundation of China (51775269) and the China Postdoctoral Fund (2017M610326)

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    Abstract:

    For the active safety performance of heavy-duty vehicles, the dynamic performance of the hydraulic brake-by-wire for heavy-duty vehicle braking process is studied. The principle and working mode of the hydraulic brake-by-wire are analyzed and the key hydraulic components of the system are mathematically modeled. The hydraulic model of the hydraulic brake-by-wire system is established in the AMESim. The accumulator pressure maintaining control strategy and the wheel cylinder pressure following control strategy based on PID algorithm are designed. The control strategy is embedded in the electronic control unit and the HBW test bench is developed. Under typical braking conditions, the dynamic characteristics simulation and test verification of wheel cylinder pressure are carried out. The results show that the established hydraulic model is accurate, and the hydraulic brake-by-wire system is effective with quick dynamic response and high precision.

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History
  • Received:May 20,2020
  • Revised:August 29,2020
  • Adopted:
  • Online: July 06,2021
  • Published:

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