Method for smoothing transmission input shaft speed signal of dual clutch gear box in drive train of motor car, involves determining prediction weight based on slippage rotation speed after fading of oscillation of speed signal

摘要

The method involves supplying a transmission input shaft speed signal to a filter, where the speed signal comprises a prediction weight as a function of slippage rotation speed of a clutch. The prediction weight is adjusted to a constant value independent of slippage rotation speed for recognition of oscillation of the speed signal, where the constant value is less than 70 percent. The prediction weight is determined again based on the slippage rotation speed after fading of the oscillation of the speed signal, where the prediction weight represents weight factor of the filtered speed signal.