CN202361998U

CN202361998U - A clutch sensor

Info

Publication number: CN202361998U
Application number: CN2011204831468U
Authority: CN
Inventors: 杨利江; 王雄关; 李建斌
Original assignee: HANGZHOU LIN'AN TECHRUN CO Ltd
Current assignee: HANGZHOU LIN'AN TECHRUN CO Ltd
Priority date: 2011-11-29
Filing date: 2011-11-29
Publication date: 2012-08-01
Anticipated expiration: 2021-11-29

Abstract

This utility model relates to a clutch sensor. The existing clutch sensors have problems of having relatively high failure rate during use and relatively high error rate when transmitting information. This utility model comprises a housing with a circuit board set inside which is characterized by comprising a power source input end and a grounding end. The exterior of the circuit board is provided with an annular magnetic steel doing the directional movement along the circuit board. A first chip and a third chip which are only responsive with a south pole of the annular magnetic steel are positioned on the circuit board ,and a second chip which is only responsive with north pole of the annular magnetic steel is positioned on the circuit board as well. The first chip is located at a distance of 9.5mm away from an anode of the circuit board, and the second chip and third chip are located coordinately at a distance of 26mm away from the anode. This utility model employs a Hall-type dual-circuit switch(one circuit being normally closed and another circuit being normally opened at a standstill state; one circuit being closed and another circuit being opened at an open state; quickly switching of closing and opening the circuit.)This clutch sensor has high sensitivity and can send the information to an ECU accurately with low error rate and high stability.

Description

A kind of clutch sensor

Technical field

The utility model belongs to sensor, especially a kind of clutch sensor.

Background technology

During gearshift, at first step on clutch and break away from power, clutch sensor is about to signal and is transferred to ECU, judges gear shift possibly, promptly temporarily remembers present engine rotating speed, accelerator pedal position and distributive value and keeps.Finished changing shelves, unclamped clutch and get back to full interlock, sensor is notified ECU again immediately.Whether ECU is the monitor engine change in rotational speed at once, also have a look at gas pedal simultaneously and change.When finding the trend have rotating speed to reduce, and gas pedal does not change or is not enough, strengthens the oil spout speed-raising with regard to immediate command and keeps or compensation.Gas pedal has had variation, changes the operation of following the tracks of throttle immediately over to.This function makes gearshift procedure steady along cunning, speed-raising and reduction of speed.And existing clutch sensor be not well positioned to meet the demand, and failure rate is higher in the use, and error rate is higher when transmitting information.

The utility model content

The utility model provides a kind of clutch sensor to the defective that prior art exists, and has job stability preferably, and accurately transmission information is given ECU, and error rate is low.

For this reason; The utility model is taked following technical scheme: a kind of clutch sensor, comprise shell, and be provided with circuit board in the shell; It is characterized in that described circuit board comprises power input and earth terminal; Described circuit board outside is provided with the annular magnetic steel that moves along circuit board orientation, and described circuit board only is provided with South Pole with annular magnetic steel interact first chip, the 3rd chip, only also is provided with second chip that interacts with the annular magnetic steel arctic; Described first chip is located at from circuit board positive terminal 9.5mm position, and described second chip and the 3rd chip are located at from circuit board positive terminal 26mm position side by side.Second chip is opposite with the 3rd chip functions; When annular magnetic steel is in initial position, its south pole orientation orientation movements direction, first output terminal of first chip controls keeps high electricity frequently; Second output terminal of second chip controls keeps low electricity frequently, and the 3rd output terminal of the 3rd chip controls keeps high electricity frequently.Annular magnetic steel when the outside moves to the 9.5mm place along desired trajectory, and first output terminal that first chip is controlled promptly frequently aims at low electricity frequently by high electricity, realizes conversion, and signal is constant frequently for the electricity of the second and the 3rd chip.When annular magnetic steel moves to the 26mm place; Second output terminal of second chip controls transfers high electricity to frequently; The 3rd output terminal of the 3rd chip controls then becomes low electricity frequently; The process of conversion realizes the clutch change in information, and ECU is passed in this variation, and second output terminal and the 3rd output terminal remain consistance when changing.

The utility model adopts Hall-type double circuit switch (stationary state one a tunnel normally closed Lu Changkai, starting state one tunnel closes a tunnel and opens, and closes with open circuit to switch fast), and transducer sensitivity is high, and accurately transmission information is given ECU, and error rate is low, good operating stability.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the electricity frequency variation diagram of three output terminals of the utility model.

Embodiment

Clutch sensor as shown in Figure 1 comprises shell, is provided with circuit board 1 in the shell; Circuit board 1 comprises power input and earth terminal; Circuit board 1 outer setting is along the annular magnetic steel 2 of circuit board 1 directed movement, when annular magnetic steel 2 is in initial position, and its south pole orientation orientation movements direction.Circuit board 1 only is provided with South Pole with annular magnetic steel 2 interact first chip 3, the 3rd chip 5; Only also be provided with second chip 4 that interacts with annular magnetic steel 2 arctic; First chip 3 is located at from circuit board 1 positive terminal 9.5mm position, and second chip 4 and the 3rd chip 5 are located at from circuit board positive terminal 26mm position side by side.First chip 3 and the 3rd chip 5 all only react to the South Pole of annular magnetic steel 2, and the function of the 3rd chip 4 is just opposite.Three chips on the sensor are controlled three output terminals respectively, and these three output terminals join through lead and ECU respectively, realize the conveying of information, and these three output terminals any a tunnel can also external driving-chain relay.

As shown in Figure 2; When magnet steel is in initial position arrival 9.5mm process; First chip all is in the magnetic line of force in the magnet steel South Pole; First output terminal that this moment, first chip was controlled is height electricity frequency, and second output terminal that second chip is controlled is for low frequently electric. the 3rd output terminal that the 3rd chip is controlled is high electricity frequency.

When the central plane of magnet steel arrived 9.5 ± 1 positions, first output terminal that first chip is controlled became low electricity frequently frequently by original high electricity immediately, and other two output terminals remain unchanged.

When the magnet steel central plane (comprised the 18mm position, but do not comprise 26mm) from 9.5 (not comprising 9.5 ± 1) to 26mm, first output terminal was for low frequently electric, and second output terminal is low electricity frequency, and the 3rd output terminal is high frequently electric;

When magnet steel central plane during to 26mm ± 1 position, second output terminal be high electricity frequently, the 3rd output terminal for low electricity frequently; Second output terminal and the 3rd output terminal remain consistance when changing simultaneously in this position.

(when comprising 32.6 ± 1mm), the state of three output terminals remains unchanged from 26mm (not comprising 26 ± 1) to 35.5mm when the magnet steel central plane.

The utility model changes in time clutch information is passed to ECU through the electricity frequency signal of three chips on the sensor, has ECU to assign subsequent instructions again.Transducer sensitivity is high, and error rate is low, good operating stability.

What need particularly point out is; The mode of the foregoing description only limits to describe embodiment; But the utility model is confined to aforesaid way incessantly; And those skilled in the art can modify in the scope that does not break away from the utility model in view of the above easily, so the scope of the utility model should comprise the principle that the utility model discloses and the maximum magnitude of new feature.

Claims

1. clutch sensor; Comprise shell; Be provided with circuit board in the shell, it is characterized in that described circuit board comprises power input and earth terminal, described circuit board outside is provided with the annular magnetic steel that moves along circuit board orientation; Described circuit board only is provided with South Pole with annular magnetic steel interact first chip, the 3rd chip; Only also be provided with second chip that interacts with the annular magnetic steel arctic, described first chip is located at from circuit board positive terminal 9.5mm position, and described second chip and the 3rd chip are located at from circuit board positive terminal 26mm position side by side.