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US 9,285,282 B2Granted
Magnetic sensor packaging for transmissions
AssigneeFord Global Technologies, LLC
InventorsNimrod Kapas, Joseph F. Kucharski, Gregory Michael Pietron, Diana Yanakiev, Mark Richard Dobson, Yuji Fujii
Life of this patent
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Abstract
Designs to package a magneto-elastic torque sensor in an automotive transmission for volume production applications are provided. One transmission includes an output shaft and a magnetic torque sensor. The output shaft has a magnetized region. The sensor, for detecting torque of the output shaft, is mounted on friction reduction members such as bushings supporting the output shaft. In another transmission, the sensor is alternatively mounted to a transmission case.
Claims8
A transmission comprising:
- a transmission case;
- an output shaft having a magnetized region;
- bearings supporting the shaft;
- and
- a sensor housing having a magnetic torque sensor for detecting torque of the output shaft, the housing being directly between the transmission case and the shaft and supported over the bearings thereby maintaining spacing between the sensor and the shaft and being affixed to the transmission case to be held in place as the shaft rotates.
2 more elements
A transmission comprising:
- a transmission case;
- an output shaft having a magnetized region;
- and
- a sensor housing having a magnetic torque sensor for detecting torque of the output shaft, the housing being directly between the transmission case and the shaft and being press-fit mounted to a portion of the transmission case adjacent to the magnetized region thereby maintaining spacing between the sensor and the shaft and holding the sensor in place as the shaft rotates.
1 more element
Dependencies are inferred from the claim text.