Abnormality detecting apparatus for automatic speed changer

An abnormality detecting apparatus for an automatic speed changer, comprising:

• a speed change controlling means for controlling the automatic speed changer;
• a learn controlling means for optimizing an rpm change at the time of speed change control by said speed change controlling means;
• and
• an abnormality detection controlling means for counting up a learn control execution number counter when the learn control is executed by said learn controlling means, counting up learned value change number counter if there is a change in the learned value and storing the condition as abnormal if the value of said learn control execution number counter is not less than a first predetermined value when a value obtained by subtracting the value of said learned value change number counter from the value of said learn control execution number counter is not greater than a second predetermined value.