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Magnetic sensor packaging for transmissions

A transmission, torque sensor technology, applied in the direction of transmission, gear transmission, transmission control, etc.

Inactive Publication Date: 2014-08-27
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mounting and packaging such magnetic sensors within the limited space of the transmission presents challenges

Method used

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  • Magnetic sensor packaging for transmissions
  • Magnetic sensor packaging for transmissions
  • Magnetic sensor packaging for transmissions

Examples

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Embodiment Construction

[0049] Specific embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various and alternative forms. The figures are not necessarily to scale and some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0050] now refer to figure 1 , shows a block diagram of a power train 10 of a vehicle according to an embodiment of the present invention. The powertrain 10 includes an engine 12 , a torque converter 14 and an automatic transmission 16 . The transmission 16 has an input shaft 18 and an output shaft 20 . The engine 12 transmits torque to the torque converter 14 via a crankshaft 13 of the engi...

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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.

Description

technical field [0001] The invention relates to an automatic transmission with a magnetic sensor. Background technique [0002] A vehicle's automatic transmission includes an input shaft and an output shaft. The input shaft receives input torque at an input speed from power from a power source (eg, an engine). The transmission converts input torque at the input speed to output torque at the output speed. The output shaft transmits the output torque at the output speed to the traction wheels of the vehicle to drive the vehicle. [0003] A transmission converts input torque at an input speed to output torque at an output speed by adjusting the gear ratio between the input shaft and output shaft (for example, during an upshift or downshift). Transmission shifting is accomplished by applying and / or releasing friction elements (eg, clutches, band brakes, etc.) that alter the speed and torque relationship by changing the transmission's planetary gear configuration. As a result...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/40
CPCG01L3/101B60K17/28B60K17/344B60K25/06B60Y2400/307F16H3/091F16H63/40
Inventor 尼姆罗德·卡帕斯约瑟夫·F·库哈尔斯基格雷戈里·迈克尔·皮尔准恩黛安娜·雅娜奇维夫马克·理查德·多布森藤井雄二
Owner FORD GLOBAL TECH LLC