The invention relates to a method for operating a motor vehicle (10) having a drive unit and a transmission. When the transmission is force-transmitting, the cruise control function is activated and a cruise control target speed (11) is predetermined, a predicted speed profile (12) is calculated on the basis of travel route data of a travel route in front of the motor vehicle, which predicted speed profile will be generated when the motor vehicle rolls or slides in a non-force-transmitting manner by the transmission. A maximum deviation (vMAX) between the cruise setpoint speed (11) and the predicted speed profile (12) is ascertained, and a maximum permissible duration (tMAX) of the rolling or coasting mode of the motor vehicle is ascertained as a function of the maximum deviation. A check is made as to whether the predicted speed profile (12) has returned to the cruise setpoint speed (11) within a maximum permissible duration (tMAX) of the rolling or coasting mode, the rolling or coasting mode being activated if it is confirmed that the predicted speed profile (12) has returned to the cruise setpoint speed (11) within the maximum permissible duration (tMAX), and wherein the rolling or coasting mode is activated if it is confirmed that the predicted speed profile (12) has returned to the cruise setpoint speed (11) within the maximum permissible duration (tMAX). If it is confirmed that the predicted speed profile (12) does not return to the cruise setpoint speed (11) within the maximum permissible duration (tMAX), a disabled rolling or coasting operation is maintained.

    用于运行具有驱动单元和传动装置的机动车(10)的方法。当传动装置是传力的、巡航定速功能启用并且预定了巡航定速额定速度(11)时,基于处在机动车前方的行驶路线的行驶路线数据计算预测的速度曲线(12),该预测的速度曲线将在机动车以传动装置不传力的方式溜滚或滑行时产生。获知在巡航定速额定速度(11)和预测的速度曲线(12)之间的最大偏差(△vMAX),其中,依赖于最大偏差获知机动车的溜滚运行或滑行运行的最大允许的持续时间(△tMAX)。检查预测的速度曲线(12)在溜滚运行或滑行运行的最大允许的持续时间(△tMAX)内是否回到巡航定速额定速度(11),其中,如果确认了预测的速度曲线(12)在最大允许的持续时间(△tMAX)内回到巡航定速额定速度(11),激活溜滚运行或滑行运行,并且其中,如果确认了预测的速度曲线(12)在最大允许的持续时间(△tMAX)内没有回到巡航定速额定速度(11),保持禁用溜滚运行或滑行运行。


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    Title :

    Method and controller for operating motor vehicle


    Additional title:

    用于运行机动车的方法和控制器


    Contributors:

    Publication date :

    2023-10-27


    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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