| 摘要 |
The invention relates to a method for controlling a drive train of a vehicle, with a drive motor and a gearbox, the ratio of which can be automatically varied within a range of ratios in a continuous and/or stepped manner, as a function of predefinable target speeds (v_ziel) that can be set using a vehicle speed control unit and the inclination of the vehicle at any one time relative to a longitudinal axis of the vehicle. According to the invention, when the vehicle speed control unit is activated and the actual speed (v_ist) of the vehicle differs from a predefined target speed (v_ziel) of the vehicle, a request to change the current gear ratio (i_ist) is generated if it is determined that the output torque that can be represented by the actual gear ratio (i_ist) at the output of the drive train is smaller than a threshold value or is smaller than an output-end output torque that is required to set the predefined target speed (v_ziel) of the vehicle, the gear ratio (i_ist) being varied such that the output torque that can be represented at the output is altered in the direction of the output torque required to set the target speed (v_ziel). ® KIPO & WIPO 2008 |
