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A transmission and torque sensor technology, applied in the direction of instruments, transmission parts, mechanical equipment, etc.

Inactive Publication Date: 2014-10-29
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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[0056] A first embodiment provides for mounting the sensor on the chain drive sprocket or integrating the sensor into a modified sprocket bearing mount. Thus, in one variant the sensor is mounted on the driving sprocket and in another variant the sensor is mounted on the driven sprocket.

[0057] The second embodiment provides that the sensor is installed at the ground ring gear of the planetary gear final drive. One variant uses a radial sensor configuration, while the other uses an axial sensor configuration.

[0058] A third embodiment provides that the sensor is mounted at the differential housing. In one variation, the sensor is located on the end face of the final drive (final drive configuration with idler shaft) output gear. In another variant, the sensor is at the radial region after the planetary final drive (final drive configuration with chain and planetary final drive).

[0059] A fourth embodiment provides for mounting the sensor at the output planet carrier h...

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Abstract

Various packaging designs for placement of a magnetic torque sensor at the output shaft of a front wheel drive transmission are provided. One design provides for mounting a sensor on a chain drive sprocket or integrating a sensor into a modified sprocket bearing mount. Another design provides for mounting a sensor at the grounded ring gear of a final planetary drive. Another design provides for mounting a sensor at the differential housing. Another design provides for mounting a sensor at the output planetary carrier hub / park gear. Another design provides for mounting a sensor at a multi-piece transfer gear face.

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 output torque at the output speed to traction wheels of the vehicle to propel the vehicle. [0003] The transmission converts input torque at an input speed to output torque at an output speed by adjusting a gear ratio between an input shaft and an output shaft (eg, during an upshift or a downshift). Transmission shifts are accomplished by applying and / or releasing friction elements (eg, clutches, band brakes, etc.) to change the speed and torque relationship by changing the transmission's planetary gear configuration. As a result, a power flow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02
CPCG01L3/103G01L3/101F16H57/01F16H57/037F16H2057/018
Inventor 格雷戈里·迈克尔·皮尔准恩尼姆罗德·卡帕斯藤井雄二约瑟夫·F·库哈尔斯基格雷戈里·丹尼尔·格莱斯基杰夫瑞·爱德华·毛瑞尔
Owner FORD GLOBAL TECH LLC