| 摘要 |
During operation there is carried out comparison of first input signals (IS) indicating speed frequency of a gearbox (10) input shaft (16) with a product (OS*GR) of a second input signal (OS) indicating speed frequency of the gearbox (10) output shaft (90) and a third signal (GR) indicating the shifted speed gear. If the absolute value of the difference IS - (OS*GR) between the first input signal (IS) and the (OS*GR) product is less than a reference value (REFi(FAILURE)) that corresponds to the stored absolute value for faultless signals (IS, OS, GR) and if the value of the difference IS - (OS*GR) changed from positive value IS is greater than (OS*GR) to negative value IS is less than (OS*GR) it is prevented, for absence of conditions necessary for blocking the transfer of torque the transmission of command output signals to controlled actuators (70, 96) of gear shifting for disengagement of the shifted speed gear in the first operation mode, until an instant when the conditions for blocking the conditions of torque are available. |
