Method and apparatus for selecting a starting gear in an...

Details Method and apparatus for selecting a starting gear in an... Method and apparatus for selecting a starting gear in an...

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 59/14 (2006.01) F16H 59/52 (2006.01) F16H 59/66 (2006.01) F16H 61/02 (2006.01) F16H 59/44 (2006.01) F16H 59/48 (2006.01) F16H 61/00 (2006.01)

Patent

CA 2134796

A method and apparatus for selecting a transmission starting gear based on calculated gross vehicle weight is disclosed. The vehicle speed and grade are monitored by sensors which provide data to a computer. The computer is programmed to calculate vehicle acceleration from the sensed speed and to adjust the acceleration value so as to eliminate the effect of grade. The gross vehicle weight is then calculated from the adjusted acceleration value. Based on the calculated gross vehicle weight and the existing grade, an appropriate starting gear is automatically selected by the computer from a look-up table stored in memory.

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