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Clutch master cylinder capable of outputting displacement signal

A displacement signal and master cylinder technology, applied in the field of automobile clutch system, can solve the problems of inability to accurately judge the position of the clutch master cylinder piston, unable to provide accurate signals of the clutch system, etc., and achieve the effect of compact structure, satisfying signal requirements and low quality.

Inactive Publication Date: 2011-04-20
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the traditional clutch master cylinder is composed of mechanical components, it is impossible to accurately judge the position of the clutch master cylinder piston, and cannot provide an accurate signal of the engagement or separation of the clutch system

Method used

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  • Clutch master cylinder capable of outputting displacement signal
  • Clutch master cylinder capable of outputting displacement signal
  • Clutch master cylinder capable of outputting displacement signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] see figure 1 with image 3 A clutch master cylinder capable of outputting displacement signals is shown, including a piston 2 matched with the inner wall of the cylinder body 1, a push rod 3 connected with the piston, an inner ring and a push rod matched with a sealing ring, and an outer ring matched with the inner wall of the cylinder 4; the piston 2 is made of magnetic material with an alnico magnet, which can generate a magnetic field;

[0015] A Hall element 6 and a connector connecting body 7 are integrated with the sensor housing 5 by casting, the wiring harness connector 8 is connected with the connector connecting body 7 by injection molding, and the signal is output by the wiring harness connector 8; the sensor housing 5 and the The cylinder body 1 is pressed into one body through interference fit, and the Hall element 6 in the sensor housing 5 corres...

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Abstract

The invention discloses a clutch master cylinder capable of outputting a displacement signal, which comprises a cylinder body, a piston matched with the inner wall of the cylinder body, a push rod connected with the piston, an inner ring, an outer ring matched with the push rod, and a seal ring matched with the inner wall of the cylinder body, and is characterized in that the piston is produced by magnetic material with an aluminum-nickel-cobalt magnet; a Hall element, a socket connector connecting body and a sensor housing are combined into a whole by casting, a wiring harness socket connector and the socket connector connecting body are connected by injection molding, and the signal is outputted by the wiring harness socket connector; and the sensor housing and the cylinder body are press-mounted into the whole by interference fit, and the Hall element in the sensor housing corresponds to the piston in the cylinder body. The clutch master cylinder adopts non-metal material, the weight is small, the structure is compact, and the assembly is convenient; by adopting a Hall principle sensor, the non-contact output of the displacement signal can be realized. The output of the signal of the clutch master cylinder is stable, the response speed is fast, and the clutch master cylinder is durable and can meet the signal requirement of an electronic hand brake arranged in an existing hybrid vehicle on a clutch system.

Description

technical field [0001] The invention relates to an automobile clutch system, in particular to a clutch master cylinder capable of outputting displacement signals. Background technique [0002] In the existing automobile clutch system, the clutch master cylinder mostly adopts a mechanical type, and the clutch master cylinder is mainly composed of a cylinder block, a push rod, a piston, a sealing ring and the like. The push rod is rigidly connected to the piston, the sealing ring is located between the cylinder body and the piston, and the push rod pushes the piston to establish hydraulic pressure to push the clutch split cylinder, so as to realize the separation or engagement of the clutch. Since the traditional clutch master cylinder is composed of mechanical components, it is impossible to accurately judge the position of the clutch master cylinder piston, and cannot provide an accurate signal for the engagement or separation of the clutch system. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/02F16J1/01F16J10/02
Inventor 赵立杰杨文杰蒋伟
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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