Transmission speed sensor arrangement

G - Physics – 01 – P

Patent

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Details

74/166, 340/148.

G01P 13/00 (2006.01) F16H 3/66 (2006.01) F16H 59/36 (2006.01) F16H 59/40 (2006.01) F16H 59/42 (2006.01)

Patent

CA 1238962

ABSTRACT OF THE DISCLOSURE A remote dual peed sensing arrangement for a motor vehicle automatic power transmission turbine input and output shafts aligned on a common axis. The output shaft has an axial throughbore aligned on the input shaft axis. A speed shaft is rotatably journalled in the throughbore and has one end coupled to the input shaft. The shaft opposite free end has a toothed speed wheel mounted thereon for rotation on the common axis adjacent the transmission output gear mounted on the free end of the output shaft. A pair of magnetic sensors are supported on the transmission housing in side-by-side radially offset relation. The sensors have their pickup ends juxtaposed to the periphery of the speed wheel-teeth and output shaft gearteeth , respectively. Thus, the speed of both the transmission's input and output shafts may be accurately sensed and measured from a single remote installation while obviating the generation of false speed signals between the sensors and their associated rotating teeth.

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