The invention provides a vehicle-mounted road surface gradient measuring system. The system comprises an attitude acquisition unit, a distance measurement unit and a signal processing unit, the attitude acquisition unit is used for measuring an inclination angle beta, the distance measurement unit is used for measuring an interference angle gamma, and the signal processing unit is used for calculating the value of a road surface gradient tan theta. The invention further provides a road surface gradient measuring method. The method comprises the steps of acquiring the inclination angle beta; obtaining the interference angle gamma; obtaining the road surface gradient tan theta according to the inclination angle beta and the interference angle gamma, the interference angle gamma being obtained by the distance measurement unit, substituting the interference angle gamma into the signal processing unit for operation, eliminating interference of the interference angle gamma on gradient measurement during acceleration and deceleration of a vehicle, and improving the precision of the road surface gradient tan theta calculated by the signal processing unit.
本发明提供了一种车载式路面坡度测量系统,包括:姿态获取单元、测距单元及信号处理单元,所述姿态获取单元用于测量倾角β,所述测距单元用于测量干扰角γ,所述信号处理单元用于计算得到路面坡度tanθ的值。本发明还提供一种路面坡度测量方法,包括:获取倾角β;获取干扰角γ;根据倾角β和干扰角γ得到路面坡度tanθ,其中,所述测距单元获取了所述干扰角γ,并将所述干扰角γ代入所述信号处理单元进行运算,消除了车辆加减速运动时所述干扰角γ对坡度测量的干扰,提高了所述信号处理单元运算出的路面坡度tanθ的精度。
Vehicle-mounted road surface gradient measuring system and measuring method
车载式路面坡度测量系统及测量方法
2021-03-02
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 / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS |
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