The invention discloses a method and system for calculating the vehicle demand torque. The calculation method comprises the following steps of carrying out the zero-crossing virtualization calculationof an accelerator pedal position signal and a vehicle speed signal, and outputting a zero-crossing virtualization accelerator pedal relative position signal, generating a torque MAP based on the vehicle speed signal and the zero-crossing virtualization accelerator pedal position signal, and acquiring a static torque demand signal, generating a dynamic torque demand signal through derivation processing according to the accelerator pedal position signal, and superposing the static torque demand signal and the dynamic torque demand signal to obtain the demand torque of the whole vehicle. According to the method for calculating the vehicle demand torque, zero-crossing virtualization calculation processing is introduced. The accelerator pedal not only analyzes the demand willingness of the driver (expressing the demand willingness through the static torque demand signal), but also further analyzes the intense degree of the demand willingness of the driver (expressing the intense degree ofthe willingness of the dynamic torque demand signal), so that the torque demand of the driver can be completely analyzed.

    本发明公开了一种整车需求扭矩的计算方法及系统,其中计算方法包括以下步骤:对油门踏板位置信号和车速信号进行过零虚拟化计算处理后,输出过零虚拟化油门踏板相对位置信号;基于车速信号和过零虚拟化油门踏板位置信号生成扭矩MAP图,得到静态扭矩需求信号;根据油门踏板位置信号经过求导处理生成动态扭矩需求信号;叠加静态扭矩需求信号和动态扭矩需求信号得到整车需求扭矩。本发明提供的整车需求扭矩的计算方法,引入过零虚拟化计算处理。油门踏板不仅仅解析为驾驶员的需求意愿(通过静态扭矩需求信号表达需求意愿),还进一步解析驾驶员需求意愿的强烈程度(动态扭矩需求信号表达意愿的强烈程度),从而可以完整的解析驾驶员的扭矩需求。


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    Title :

    Method and system for calculating vehicle demand torque


    Additional title:

    整车需求扭矩的计算方法及系统


    Contributors:
    SUN ZENGGUANG (author) / LI YUAN (author) / LIU XIN (author)

    Publication date :

    2020-09-11


    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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