Research on Voltage Control of P2.5 Hybrid System

Jing, Junchao; Liu, Yiqiang; Huang, Weishan

doi:10.1109/rcae51546.2020.9294209

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Ling Zheng et al [5] analyzed fuzzy PID control strategy enabling online adjustment of PID parameters for adaptive capabilities and improved suppression of motor torque ripple. Junchao Jing et al [6] conducted a comprehensive analysis of P2.5 hybrid motor current control as well as motor mode and path regulation to introduce a motor control strategy.…”

Section: Introductionmentioning

confidence: 99%

Research on Motor Control of Dual Motor Hybrid Vehicle

2024

jeeem

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The stability and robustness of the control system for a dual hybrid system's permanent magnet synchronous motor are analysed. Various control techniques, such as current vector control, flux weakening control, PI current control, and SVPWM control, are examined. The motor operates in different modes including initialization mode, normal mode, fault mode, active discharge mode, and power down mode. To ensure occupant safety and prevent damage to vehicle components when facing obstacles like high resistance or steep uphill slopes, motor stall control is implemented. Active short control is defined to avoid feedback of motor current to the battery through the continuous current diode of the IGBT and minimize excessive braking torque generated by the back electromotive force after closing the three-phase bridge arm at high speeds. Finally, successful validation of the motor control design is achieved through real vehicle testing.

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Section: Introductionmentioning

confidence: 99%

Research on Motor Control of Dual Motor Hybrid Vehicle

2024

jeeem

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Mitigating HV battery malfunctions in a 48 V P0 mild hybrid system: A novel voltage control strategy

Shang,

Zhang,

Yin

2024

Advances in Mechanical Engineering

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When the HV battery of a hybrid electric vehicle encounters severe faults, the 12 V battery can easily become depleted, forcing the vehicle to shut down. To address this issue, this paper proposes a novel voltage control strategy specifically tailored for a 48 V P0 mild hybrid system in a MHEV. The strategy comprises two main components. The first component is a dual closed-loop control strategy with weak magnetic control for the MCU, ensuring a stable voltage output from the BSG in generator mode across a wide speed range. The second component is a hierarchical control-based voltage control strategy for the HCU. In this context, the HCU serves as the central controller, coordinating with the BMS, MCU, DC/DC, and ECU to harmonize the voltage control mode of the hybrid system. The effectiveness of this strategy has been confirmed through bench and vehicle tests. Test results indicate that the strategy enables the hybrid system to maintain acceptable HV bus voltage fluctuations and provides effective hardware protection under various scenarios. The strategy guarantees that the vehicle can continue operating after a severe fault in the 48 V battery, thereby enhancing the robustness of the hybrid electric vehicle system.

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Research on Voltage Control of P2.5 Hybrid System

Cited by 2 publications

References 9 publications

Research on Motor Control of Dual Motor Hybrid Vehicle

Research on Motor Control of Dual Motor Hybrid Vehicle

Mitigating HV battery malfunctions in a 48 V P0 mild hybrid system: A novel voltage control strategy

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