High-precision non-contact type automobile gear sensor

A non-contact, sensor technology, applied in the direction of transmission control, toothed components, belts/chains/gears, etc., can solve problems such as poor contact, easy wear, easy failure, etc., to achieve short life and prolong work Long life, accurate and stable output signal

Inactive Publication Date: 2013-05-01
HEFEI BANGLI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art, to provide a high-precision non-contact automotive gear sensor, which solves the problems of poor contact and easy failure caused by easy wear and tear in the existing contact gear sensors and The development of AMT gearbox puts forward higher requirements for the performance of non-contact gear sensor

Method used

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  • High-precision non-contact type automobile gear sensor

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Embodiment Construction

[0022] Referring to the accompanying drawings, a high-precision non-contact automotive gear sensor includes a cylindrical housing 5, an upper cover 1 is provided on the axial top of the housing 5, and a lower cover 9 is provided on the axial bottom. The inner side of the upper cover plate 1 is provided with a shielding layer 2 and a circuit board 3. The Hall chip 4 is pasted and welded on the circuit board 3. The center of the Hall chip 4 corresponds to the center of the magnet 6. The magnet 6 is embedded in the middle of the hollow shaft 7. Hollow rotating shaft 7 radially outside is provided with locating ring, and the hollow rotating upper cover of locating ring bottom is provided with return spring 8, and the upper end and the lower end of return spring 8 are respectively located on locating ring and lower cover plate 9; The upper ring groove, the inner surface of the lower cover plate 9 is provided with the lower ring groove, and the lower end of the upper end of the back-...

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Abstract

The invention discloses a high-precision non-contact type automobile gear sensor which comprises a shell having a shape of cylinder. The high-precision non-contact type automobile gear sensor is characterized in that an upper cover plate is arranged at the axial top of the shell; a lower cover plate is arranged at axial bottom; a shielding layer and a circuit board are arranged inside the upper cover plate; a Hall chip is stuck and welded on the circuit board; the center of the Hall chip is corresponding to the center of a magnet; the magnet is embedded into a middle part of a hollow rotating shaft; a positioning ring is arranged along the radial direction outside the hollow rotating shaft; a resetting spring is sleeved on the hollow rotating shaft on the lower part of the positioning ring; and the upper end and the lower end of the resetting spring are respectively located on the positioning ring and the lower cover plate. The invention solves the problems of poor contact and easiness in losing efficiency caused by easiness in abrading of the present contact type gear sensor, meets the higher demand of the development of AMT (Advanced Manufacturing Technology) gearbox on the non-contact type gear sensor, has a multipoint programming function and has excellent linear output characteristics.

Description

technical field [0001] The invention relates to a car gear sensor, in particular to a high-precision non-contact car gear sensor. Background technique [0002] Electric mechanical automatic transmission (AMT) is based on a conventional manual transmission, with an additional set of electronic control devices, which can automatically control the clutch and shift lever of the manual transmission, so that the separation and engagement of the clutch are automatic. of. AMT transmission combines the advantages of high transmission efficiency of mechanical transmission and convenient operation of automatic transmission, and is widely used in various vehicles. [0003] The AMT gearbox realizes the moving shift and swing shift of the shift fork shaft of the gearbox and the engagement of the clutch through the control of the rotation angle of the motor. The gear sensor is the most important measurement and control link in the AMT transmission system. The accuracy of the measurement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/42
Inventor 周守元张肖康
Owner HEFEI BANGLI ELECTRONICS
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