The automatic transmission shift control unit and method for self-learning control means
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The present invention discloses an automatic transmission shift control unit learning control method and apparatus. The method comprising: controlling the automatic transmission control unit calculates the duty ratio for each gear PRND reference value; controlling the automatic transmission control unit respectively store the duty ratio for each gear PRND reference value; triggering a said automatic transmission control means separately reading each of the duty ratio reference value PRND gear; triggering the automatic transmission control unit according to the parking position P, a reverse position R, the neutral N and the forward reference duty cycle value D for each gear, calculates a duty ratio range of the parking position P, a reverse position R, neutral N of the forward gear and the gear D of each. Using the technical solution provided by the invention, the automatic transmission can be avoided after the replacement of the prior art sensors require maintenance and repair problems Depot, so the owner can bring convenience.