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Non-contact type angular sensor for automobile electronic accelerator

An angle sensor and automotive electronics technology, applied in the field of sensors, can solve problems affecting the promotion of electronic accelerator pedals, and achieve the effect of accurate angle detection

Inactive Publication Date: 2012-06-13
CHANGZHOU WANXIANG AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports, the current failure rate of the factory's products has reached more than 30%, which has greatly affected the promotion of electronic accelerator pedals in China.

Method used

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  • Non-contact type angular sensor for automobile electronic accelerator
  • Non-contact type angular sensor for automobile electronic accelerator

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to figure 1 , the non-contact automotive electronic throttle angle sensor of the present invention includes a housing 1, a rotor 2, a circuit board 3, a chip 4, a magnet 5, a cover plate 6 and a rotor cover 7, and the housing 1 is provided with a circuit board assembly cavity 101 and the rotor accommodating chamber 102 , the chip 4 is welded on the circuit board 3 . An isolation plate 103 is provided between the circuit board assembly cavity 101 of the housing 1 and the rotor accommodation cavity 102. The isolation plate 103 and the housing 1 are integrally formed by injection molding. Since the isolation plate 103 is made of plastic, the isolation plate 103 is only The circuit board assembly cavity 101 is isolated from the rotor accommodating cavity 102 , and the magnetic field generated by the magnet 5 is not isolated, so the magnetic field induction of the chip 4 to the magnet 5 will not be affected. A chip positioning frame 104 is arranged on the isolation pl...

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Abstract

The invention discloses a non-contact type angular sensor for an automobile electronic accelerator, which comprises a casing, a rotor, a circuit board, a chip, a magnet, a cover plate and a rotor cover casing. The casing is provided with a circuit board assembly cavity and a rotor containing chamber, the chip is welded to the circuit board, a partition board is arranged between the circuit board assembly chamber and the rotor containing chamber of the casing, and the partition board is provided with a chip positioning frame. After the circuit board is assembled into the circuit board assembly chamber, the chip is matched into the chip positioning frame, and the cover plate is assembled on a chamber opening of the circuit board assembly chamber. The rotor is provided with a magnet containing chamber. After the rotor is assembled in the rotor containing chamber of the casing, the center of magnet containing chamber and the center of the chip positioning frame are located on the same axis, the magnet is assembled in the magnet containing chamber, and the rotor cover casing is fixed in the rotor containing chamber and located below the rotor. The non-contact type angular sensor for the automobile electronic accelerator can detect that the chip is coaxial with the magnet, thereby being favorable for improving detecting accuracy and saving programming.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a non-contact automotive electronic throttle angle sensor. Background technique [0002] At present, the rapid development of automotive electronics and the emergence of various sensors have brought automobiles into the era of intelligent comprehensive control. The accelerator pedal has evolved from a pull-wire type to a potentiometer-type angle sensor, and then evolved to a non-contact angle sensor. The brain ECU of the car senses the accelerator operation, and comprehensively controls the accelerator opening, intake air volume, supercharger, exhaust gas purification treatment, etc. , Adjust the state of the car to the optimal operation, so as to achieve the purpose of energy saving, environmental protection and prolonging the life of the vehicle. [0003] The emergence of the non-contact angle sensor solves the shortcoming of the long-term friction and damage of the previous p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30
Inventor 董春华巢来保
Owner CHANGZHOU WANXIANG AUTOMOBILE PARTS
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