The invention discloses a transmission climbing and downshifting assisting system and method, and belongs to the field of automobile transmission gear shifting control, and the system comprises a gradient sensor, a driving motor, a transmission, a climbing and downshifting assisting device, a power battery pack and a control module. The gradient sensor detects the gradient and transmits a signal to the control module, when the gradient is larger than a set threshold value and downshifting is needed, the control module distributes electric energy of the power battery to the driving motor and the climbing and downshifting power assisting device, and the driving motor inputs torque to the transmission; the climbing downshift power assisting device provides torque with the same steering direction as the transmission for the transmission shaft, so that the rotating speed of the transmission shaft is maintained within a certain range, the rotating speed difference between an input shaft and an output shaft of the transmission is reduced, and the purpose of assisting the control module to control gear shifting of the transmission is achieved. The problem that in the prior art, power is interrupted when a vehicle climbs and downshifts is solved, smooth downshift of a transmission is guaranteed, and gear engaging smoothness and the gear engaging success rate are improved.

    本发明公开了一种变速器爬坡降挡助力系统及方法,属于汽车变速器换挡控制领域,该系统包括坡度传感器、驱动电机、变速器、爬坡降挡助力装置、动力电池组和控制模块。坡度传感器检测坡度大小并将信号传递给控制模块,当坡度大于设定的阈值并且需要降挡时,控制模块分配动力电池的电能给驱动电机和爬坡降挡助力装置,驱动电机为变速器输入转矩,爬坡降挡助力装置为传动轴提供与变速器相同转向的转矩,从而保证传动轴的转速维持在一定的范围内,减小变速器输入轴与输出轴的转速差,以达到协助控制模块控制变速器换挡目的。解决了现有技术中车辆爬坡降挡时动力中断的问题,保证变速器顺利降挡,提高挂挡平顺性以及挂挡成功率。


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    Title :

    Transmission climbing and downshifting assisting system and method


    Additional title:

    一种变速器爬坡降挡助力系统及方法


    Contributors:
    WEI LONGLONG (author) / YAN JIANBO (author) / LIU YI (author) / REN SHUAI (author) / WANG PENG (author) / LIU QIANG (author) / SU NAN (author) / HAO LIUDAN (author) / RAN GUANGJUN (author) / ZHOU SIQUAN (author)

    Publication date :

    2022-06-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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