The invention discloses a vehicle mass estimation and slope automatic identification method based on oil mass, and relates to the technical field of vehicle control. The vehicle mass estimation and slope automatic identification method comprises the steps of after a vehicle is powered on, respectively obtaining initial equidistant oil mass in low-speed constant-speed, low-speed acceleration and high-speed constant-speed states when the vehicle has no slope; the equidistant oil mass being the accumulated oil mass under the same mileage S; according to the three kinds of initial equidistant oilmass, based on the law of conservation of energy, carrying out mass estimation on the vehicle, and obtaining the estimated mass; and acquiring the current real-time equidistant oil mass, and performing slope identification according to the estimated mass and the real-time equidistant oil mass. According to the vehicle mass estimation and slope automatic identification method, a large number of parameters do not need to be obtained and calibrated, the current mass of the vehicle and the slope of the running road surface can be rapidly estimated simply by obtaining the real-time equidistant oilmass of the vehicle in real time, the process is simple, and the real-time performance and accuracy of the estimated mass and slope are high.

    本申请公开了一种基于油量的车辆质量估算和坡度自动识别方法,涉及车辆控制技术领域,该车辆质量估算和坡度自动识别方法包括步骤:车辆上电后,分别获取车辆无坡面时低速匀速、低速加速和高速匀速状态下的初始等距油量;上述等距油量为相同里程S下的累积油量;根据三个上述初始等距油量,基于能量守恒定律,对上述车辆进行质量估算,得到估算质量;获取当前的实时等距油量,根据上述估算质量和实时等距油量,进行坡度识别。本申请的车辆质量估算和坡度自动识别方法,不需要进行大量参数的获取和标定,仅实时获取车辆的实时等距油量,即可快速估算出车辆当前的质量和行驶路面的坡度,不仅过程简单,且估算质量和坡度的实时性和准确度高。


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    Title :

    Vehicle mass estimation and slope automatic identification method based on oil mass


    Additional title:

    一种基于油量的车辆质量估算和坡度自动识别方法


    Contributors:
    WEI HUI (author) / CHEN YUJUN (author) / YU HANG (author) / LI XIAOLONG (author) / CAI TING (author) / ZHANG WEI (author)

    Publication date :

    2021-02-05


    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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