A change gear control device for an automatic transmission in a motor vehicle comprising, an acceleration sensor which detects an acceleration on the motor vehicle into its traveling direction; a vehicle traveling speed detector; a controller for processing change gear ratio for the automatic transmission...http://www.google.com/patents/US5235876?utm_source=gb-gplus-sharePatent US5235876 - Change gear control device using acceleration and gear ratio as parameters for automatic transmission in motor vehicle and the method therefor
