| 摘要 |
PURPOSE:To eliminate any unreliable control so as to improve gear shift control performance by making a gear shift control according to a corrected torque signal provided from a noise eliminating means, and preventing the gear shift means operation in the case where the frequency of correction by the noise eliminating means is below the given frequency. CONSTITUTION:An output shaft is provided with a magneto-striction type torque sensor 16 and a rotation sensor 18. A torque signal is inputted to a main control circuit 25 via an a.c. amplifying circuit 21, a full-wave rectifying circuit 22, and a low-pass filter 23, on the other hand, a rotation signal is inputted to the main control circuit 25 via a waveform shaping circuit 24. A periodic noise of these signals is eliminated in the interface circuit 33, a corrected torque signal is outputted from an add-subtract circuit 26, on the other hand, the operation of a pressure control valve 42 is inhibited by a power train control circuit 40 in the case where the frequency of correction by FLG is below the given frequency. Consequently, any unreliable control is prevented, a smooth gear shift control is available, and gear shift control performance is to be improved. |
