The invention provides a vehicle running speed determination method and a device. The vehicle running speed determination method comprises the steps: obtaining an oil consumption characteristic diagram of an engine of a target vehicle, wherein the oil consumption characteristic diagram is used for indicating the instantaneous oil consumption of the engine when the engine works at each of a plurality of working points; acquiring road information of a target road, and segmenting the target road according to the road information to obtain a plurality of road sections; determining the engine torque of the target vehicle when the target vehicle runs at each speed of a plurality of preset speeds in each road section of the plurality of road sections to obtain a plurality of working points corresponding to each road section; and determining the driving speed of each road section according to the oil consumption characteristic diagram of the engine of the target vehicle and the plurality of working points corresponding to each road section. According to the method, the proper driving speed of the target vehicle running on each road section can be found, so that the oil consumption of vehicle driving can be effectively reduced, the fuel economy of the vehicle is improved, and resources and cost are saved.

    本申请提供了一种车辆行驶速度确定方法和装置,其中,该方法包括:获取目标车辆的发动机的油耗特性图,其中,油耗特性图用于指示发动机在多个工作点中各工作点下工作时的瞬时油耗;获取目标道路的道路信息,并根据道路信息对目标道路进行分段,得到多个路段;确定目标车辆在多个路段中各路段中以多个预设速度中各速度行驶时目标车辆的发动机扭矩,得到各路段对应的多个工作点;根据目标车辆的发动机的油耗特性图和各路段对应的多个工作点确定各路段的行驶速度。上述方法可以找到目标车辆在各路段行驶时的合适的行驶速度,从而能有效地降低车辆行驶的油耗,改善车辆的燃油经济性,节约资源和成本。


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    Title :

    Vehicle running speed determining method and device


    Additional title:

    车辆行驶速度确定方法和装置


    Contributors:
    LI YAO (author) / ZHANG XINSHI (author) / WANG LEI (author) / YU CHENDI (author)

    Publication date :

    2020-04-21


    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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