According to the torsional vibration suppression system and method for the hybrid electric vehicle, an inherent frequency calculation module calculates the inherent frequency of a transmission system of a torsional vibration damper in different states, and a resonant frequency analysis module determines the excitation frequency according to engine rotating speed and motor rotating speed signals and judges whether resonance control needs to be carried out or not; the resonance control module generates motor additional torque, resonance possibly caused by power source excitation and a transmission system is avoided, the gap observation module estimates the gear meshing gap of the transmission system in the vehicle running process in real time and judges the mode of the gap, and the gap active control module determines motor command torque according to the estimation result of the gap observation module. By means of the method, the problem of transmission system oscillation caused by gaps under the sudden acceleration/deceleration (Tip-in/out) and starting working conditions can be effectively solved.
本发明公开了一种混合动力汽车扭振抑制系统及方法,固有频率计算模块计算扭转减振器不同状态下的传动系统固有频率,谐振频率分析模块根据发动机转速、电机转速信号确定激励频率,判断是否需要进行谐振控制,谐振控制模块生成电机附加转矩,避免动力源激励与传动系统可能引发的共振,间隙观测模块实时估计车辆运行过程中传动系统齿轮啮合间隙,判断间隙所处模式,间隙主动控制模块根据间隙观测模块的估计结果确定电机命令转矩。本发明能够有效解决在突然加速/减速(Tip‑in/out)、起步工况下由于间隙而产生的传动系统振荡。
Torsional vibration suppression system and method for hybrid electric vehicle
一种混合动力汽车扭振抑制系统及方法
2025-05-06
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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