CN105203010A - Automobile clutch sensor system - Google Patents
Automobile clutch sensor system Download PDFInfo
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- CN105203010A CN105203010A CN201510734113.9A CN201510734113A CN105203010A CN 105203010 A CN105203010 A CN 105203010A CN 201510734113 A CN201510734113 A CN 201510734113A CN 105203010 A CN105203010 A CN 105203010A
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Abstract
The invention relates to an automobile clutch sensor system which comprises an automobile clutch sensor and a sensor processing circuit, wherein a switching signal generated by the automobile clutch sensor is converted into a high-low level signal through the sensor processing circuit, and is sent to an automobile control system; the automobile clutch sensor comprises a clutch master cylinder, a piston, a permanent magnet and a sensor; the sensor comprises a Hall switch component I, a Hall switch component II and a programmable Hall component; the piston is positioned inside the clutch master cylinder; the permanent magnet mounted on the piston can move along with the piston along the axis of the clutch master cylinder; the sensor is mounted at the outer part of the clutch master cylinder; the Hall switch component I, the programmable Hall component and the Hall switch component II are used for sensing the magnetic field intensity change of the permanent magnet; the programmable Hall component outputs PwM square waves of duty ratio linear variation according to the magnetic field change, so as to reflect stroke of the clutch master cylinder. According to the automobile clutch sensor system, a mechanical contact type working manner is avoided, and the service life of a product is prolonged.
Description
Technical field
The present invention relates to a kind of sensing system, particularly relate to a kind of automatic clutch sensing system.
Background technology
Along with the development of automotive circuit diagram, cruise, lock function, electronic parking technology all need the signal obtaining clutch sensor.Clutch sensor exports the pwm signal of the switching signal of cruise and lock function and the change in duty cycle of electronic parking needs.
Summary of the invention
The invention provides for above problem and a kind of automatic clutch action be converted into electric signal and flow to automotive control system, avoid mechanical contact working method, increase the automatic clutch sensing system in product serviceable life.
A kind of automatic clutch sensing system is the invention provides in order to overcome the above problems, it is characterized in that: comprise automatic clutch sensor and sensor treatment circuit, automatic clutch sensor changes into low and high level signal through sensor treatment circuit after producing switching signal and flows to automotive control system;
Described automatic clutch sensor comprises Clutch main cylinder, piston, permanent magnet, induction installation;
Described induction installation comprises Hall switching element, programmable hall element;
Hall switching element I, Hall switching element II is comprised described in described Hall switching element;
Piston is positioned at Clutch main cylinder inside, along Clutch main cylinder axis shift, piston can be provided with permanent magnet, when piston is subjected to displacement, is arranged on the permanent magnet also and then displacement together on piston;
Be provided with induction installation in Clutch main cylinder outside, the entirety that an entirety and piston and the permanent magnet of Clutch main cylinder and induction installation composition form produces relative motion when stepping on clutch;
Hall switching element I, programmable hall element, Hall switching element II are for responding to the change of magnetic field strength of permanent magnet, it utilizes the magnetic bias induction change of permanent magnet, namely forward is perpendicular to the magnetic field in Hall switching element induction point direction, that is effective magnetic field, Hall switching element I is that forward magnetic field is effective, and Hall switching element II is that reversed magnetic field is effective;
When stepping on clutch pedal, permanent magnet field is along with motion change, and the programmable hall element in induction installation, according to the PWM square wave of changes of magnetic field output duty cycle linear change, reflects the stroke of Clutch main cylinder.
Described sensor treatment circuit Clutch main cylinder amount of movement being converted into low and high level and pwm signal comprises, connector J1, electric capacity C1, resistance R1, resistance R2, electric capacity C2, diode D1, Hall switching element IIU1, electric capacity C3, resistance R3, resistance R4, electric capacity C4, diode D2, Hall switching element IU1, resistance R5, resistance R6, triode Q1, electric capacity C5, programmable hall element U3, electric capacity C6, electric capacity C7, resistance R7, triode Q2, diode D3, diode D4, electric capacity C9, electric capacity C8, Hall power supply chip U4, electric capacity C10;
Its connector J1 terminal 2,3,4 pin exports, and 5 pin connect positive source, and 1 pin connects power cathode, positive source and electric capacity C1 pin, diode D3 anode, resistance R1 pin 2, resistance R2 pin 2, resistance R3 pin 2, resistance R4 pin 2, resistance R5 pin 1, triode Q1 emitter is connected, diode D3 negative electrode and diode D4 negative electrode, electric capacity C9 pin 1, electric capacity C8 pin 2, power supply chip U4 pin 1 is connected, power supply chip U4 pin 3 and electric capacity C10 pin 1, electric capacity C7 pin 2, programmable hall element U3 pin 1 is connected, resistance R1 pin 1 and R2 pin 1, electric capacity C2 pin 1, diode D1 negative electrode, Hall switching element IIU1 pin 1 is connected, Hall switching element IIU1 pin 2 and electric capacity C3 pin 1, connector J1 pin 4 is connected, resistance R3 pin 1 and R4 pin 1, electric capacity C4 pin 2, diode D2 negative electrode, Hall switching element IU1 pin 1 is connected, Hall switching element IU1 pin 2 and resistance R5 pin 2, resistance R6 pin 2 is connected, and resistance R6 pin 1 is connected with triode Q1 base stage, triode Q1 collector and electric capacity C5 pin 1, connector J1 pin 2 is connected, and programmable hall element U3 pin 4 is connected with electric capacity C6 pin 1, and electric capacity C6 pin 2 is connected with resistance R7 pin 1, and resistance R7 pin 2 is connected with triode Q2 base stage, and triode Q2 collector is connected with connector J1 pin 3,
Electric capacity C1 pin 2, electric capacity C2 pin 2, electric capacity C3 pin 2, electric capacity C4 pin 1, electric capacity C5 pin 2, electric capacity C6 pin 2, electric capacity C7 pin 1, electric capacity C8 pin 1, electric capacity C9 pin 2, electric capacity C10 pin 2, diode D1 anode, diode D2 anode, diode D4 anode, Hall switching element IIU1 pin 3, Hall switching element IU1 pin 3, programmable hall element U3 pin 2, power supply chip U4 pin 2, triode Q2 emitter are connected with power cathode.
Described permanent magnet is annular, and the axis direction of annular is its magnetizing direction.
Described Hall switching element I4, in operating temperature range is: during-40 DEG C ~ 140 DEG C of scopes, and its span opening magnetic field is 3.4 ~ 7.7mT, and its span of closing magnetic field is 1.8 ~ 5.4mT; Described Hall switching element II6, in operating temperature range is: during-40 DEG C ~ 140 DEG C of scopes, and its span opening magnetic field is-3 ~-7.7mT, and its span of closing magnetic field is-1.7 ~-5.4mT.
Beneficial effect: it is Hall effect principle design that sensing system of the present invention adopts, and compares with mechanical switch, avoids the problem of the product deficiency in serviceable life brought because of mechanical wear, thus adds security performance for automobile.And adopt programmable Hall chip, can require to programme according to the different master cylinders of client, different output function, decrease because master cylinder size is different, output function requires that difference needs to redesign sensor.
Accompanying drawing explanation
Fig. 1 is the structural representation of sensing system of the present invention;
The effective magnetic field intensity schematic diagram that Fig. 2 adopts for sensor of the present invention;
Fig. 3 is the change schematic diagram of sensor of the present invention effective magnetic field intensity when automatic clutch;
Fig. 4 is the change schematic diagram of sensor of the present invention magnetic field intensity when 0 magnetic field;
Fig. 5 is the change schematic diagram of sensor of the present invention effective magnetic field intensity when automatic clutch discharges;
Fig. 6 is sensor treatment circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of automatic clutch sensing system, comprises automatic clutch sensor and sensor treatment circuit, and automatic clutch sensor changes into low and high level signal through sensor treatment circuit after producing switching signal and flows to automotive control system;
Described automatic clutch sensor comprises Clutch main cylinder 1, piston 2, permanent magnet 3, induction installation 7;
Described induction installation 7 comprises Hall switching element, programmable hall element 5;
Hall switching element I4, Hall switching element II6 is comprised described in described Hall switching element;
Automatic clutch action is converted into the change of magnetic field intensity by automatic clutch lamp sensing system of the present invention, then the change of magnetic field intensity is converted into electric signal and flows to automotive control system.
When automatic clutch action on automobile clutch system the piston 2 of Clutch main cylinder 1 inside along Clutch main cylinder 1 axis shift, they coordinate compression clutch liquid to carry out automatic clutch, mounting permanent magnet 3 on the internal piston 2 of Clutch main cylinder 1, when automatic clutch, Clutch main cylinder 1 internal piston 2 is subjected to displacement, thus the permanent magnet 3 also and then displacement be together arranged on internal piston 2, so just by clutch action, the magnetic field changed on master cylinder on certain fixed position changes.
In Clutch main cylinder 1 outside, the induction installation 7 with Hall switching element I4, programmable hall element 5, Hall switching element II6 is installed, utilize Hall effect principle, when automobile generation clutch, the displacement of Clutch main cylinder 1 internal piston 2 is moved with permanent magnet 3, be arranged on the change of magnetic field strength of the Hall switching element I4 in the induction installation 7 of Clutch main cylinder 1 outside, programmable hall element 5, Hall switching element II6 induction permanent magnet, finally convert electric signal to and flow to automotive control system.This wherein comprises three parts:
A. the Hall element in the induction installation 7 on Clutch main cylinder 1 is arranged on, when automobile generation clutch action, the permanent magnet 3 be arranged on Clutch main cylinder 1 is subjected to displacement, relative to the induction installation 7 on master cylinder, the magnetic field intensity at the induction point place on its Hall switching element changes, and when magnetic field intensity reaches certain value Hall switching element I4 (1.8 ~ 7.7mT), Hall switching element II6 (-1.7 ~-7.7mT), Hall switching element produces switching signal;
B. Clutch main cylinder 1 and induction installation 7 form a whole, and the entirety formed with internal piston 2 and permanent magnet 3 produces relative motion when automatic clutch.In this process, Hall switching element induction point place magnetic field intensity changes, and change procedure is as follows.
As shown in Figure 2, the S pole 8 of permanent magnet 3 and permanent magnet N pole 9, in permanent magnet 3, the magnetic line of force 10 is through the induction point of Hall switching element, the magnetic field intensity B of this point
0the horizontal component of 13 is the invalid magnetic field B at sensor Hall switching element induction point place
111, the magnetic field intensity B of this point
0the vertical component of 13 is the effective magnetic field B at Hall switching element induction point place
212.
1) note: sensor of the present invention adopts Hall switching element I4, Hall switching element II6 as sensing element, it utilizes the magnetic bias of permanent magnet 3, and (namely forward is perpendicular to the magnetic field in Hall switching element induction point direction, that is effective magnetic field B
212) induction change, Hall switching element I4 is that forward magnetic field is effective, and Hall switching element II6 is that reversed magnetic field is effective;
2) note: the permanent magnet 3 that the present invention adopts is annular, and the axis direction of annular is its magnetizing direction.
As shown in Figure 3, the change of effective magnetic field intensity when automatic clutch: the S pole 8 of permanent magnet 3 and permanent magnet N pole 9, in permanent magnet 3, the magnetic line of force 8 is through the induction point of Hall switching element, the magnetic field intensity B of this point
3the horizontal component of 16 is the invalid magnetic field B at sensor Hall switching element induction point place
414, the magnetic field intensity B of this point
3the vertical component of 16 is the effective magnetic field B at Hall switching element induction point place
515.
As Fig. 4 institute, the change of magnetic field intensity when 0 magnetic field: the S pole 8 of permanent magnet 3 and permanent magnet N pole 9, in permanent magnet 3, the magnetic line of force 8 is through the induction point of Hall switching element, the magnetic field intensity B of this point
617 are entirely horizontal component, without vertical component, i.e. and the magnetic field intensity B of this point
6the vertical component of 17 is 0.
During automatic clutch action, the permanent magnet 3 be arranged on Clutch main cylinder 1 is subjected to displacement, relative to the induction installation 7 on master cylinder, the magnetic field intensity at the induction point place on its Hall switching element changes, magnetic field intensity is 0mT in original state and Hall switching element induction point magnetic field intensity, the magnetic field intensity B namely shown in Fig. 4
6change between 17, during this, produce the effective magnetic field intensity B shown in Fig. 3
515 magnetic field intensity points, the scope of Hall switching element I4 magnetic field intensity is 3.4 ~ 7.7mT, and the scope of Hall switching element II6 magnetic field intensity is-3 ~-7.7mT.Now Hall switching element is opened, and changes into the electric signal needed for automobile clutch system by induction installation 7.
As shown in Figure 5, the change of effective magnetic field intensity when automatic clutch discharges: the S pole 8 of permanent magnet 3 and permanent magnet N pole 9, in permanent magnet 3, the magnetic line of force 8 is through the induction point of Hall switching element, the magnetic field intensity B of this point
7the horizontal component of 20 is the invalid magnetic field B at sensor Hall switching element induction point place
818, magnetic field intensity B
7the vertical component of 20 is the effective magnetic field B at Hall switching element induction point place
819.
During automatic clutch release, the permanent magnet 3 be arranged on Clutch main cylinder 1 is subjected to displacement, relative to the induction installation 7 on master cylinder, the magnetic field intensity at the induction point place on its Hall switching element changes, magnetic field intensity is 0mT in Hall switching element induction point magnetic field intensity, the magnetic field intensity B namely shown in Fig. 4
6change between 17 and original state, during this, produce the effective magnetic field intensity B shown in Fig. 5
819 magnetic field intensity points, the scope of Hall switching element I4 magnetic field intensity is 1.8 ~ 5.4mT, the scope of Hall switching element II6 magnetic field intensity is-1.7 ~-5.4mT, and now Hall switching element is closed, and changes into the electric signal needed for automobile clutch system by induction installation 7.
Select Hall switching element I4, the operating fields strength characteristics of Hall switching element I4 is as shown in following table .1.(product work temperature range :-40 DEG C ~ 140 DEG C)
Table .1
Select Hall switching element II6, the operating fields strength characteristics of Hall switching element II6 is as shown in following table .2.(product work temperature range :-40 DEG C ~ 140 DEG C)
Table .2
C. Hall element changes into low and high level signal through sensor treatment circuit after producing switching signal and flows to automotive control system.
When stepping on clutch pedal, permanent magnet 3 magnetic field is along with motion change, and the programmable hall element 5 in induction installation 7, according to the PWM square wave of changes of magnetic field output duty cycle linear change, reflects the stroke of Clutch main cylinder.
Because the displacement of permanent magnet 3 on internal piston 2 is only converted to switch motion by Hall switching element I4, Hall switching element II6, this low and high level required with clutch control system does not mate, and needs that the switching function of Hall switching element is changed into low and high level signal and flows to control system.For this reason, design treatment circuit is to meet control system requirement.Certainly different low and high level requirements, sensor treatment circuit is different.
As shown in Figure 6, sensor treatment circuit Clutch main cylinder amount of movement being converted into low and high level and pwm signal that present embodiment adopts: comprise connector 21J1, electric capacity C1, resistance R1, resistance R2, electric capacity C2, diode D1, Hall switching element II6U1, electric capacity C3, resistance R3, resistance R4, electric capacity C4, diode D2, Hall switching element I4U1, resistance R5, resistance R6, triode Q1, electric capacity C5, programmable hall element 5U3, electric capacity C6, electric capacity C7, resistance R7, triode Q2, diode D3, diode D4, electric capacity C9, electric capacity C8, power supply chip U4, electric capacity C10,
Its connector 21J1 terminal 2,3,4 pin exports, and 5 pin connect positive source, and 1 pin connects power cathode, positive source and electric capacity C1 pin, diode D3 anode, resistance R1 pin 2, resistance R2 pin 2, resistance R3 pin 2, resistance R4 pin 2, resistance R5 pin 1, triode Q1 emitter is connected, diode D3 negative electrode and diode D4 negative electrode, electric capacity C9 pin 1, electric capacity C8 pin 2, power supply chip U4 pin 1 is connected, power supply chip U4 pin 3 and electric capacity C10 pin 1, electric capacity C7 pin 2, programmable hall element 5U3 pin 1 is connected, resistance R1 pin 1 and R2 pin 1, electric capacity C2 pin 1, diode D1 negative electrode, Hall switching element II6U1 pin 1 is connected, Hall switching element II6U1 pin 2 and electric capacity C3 pin 1, connector 21J1 pin 4 is connected, resistance R3 pin 1 and R4 pin 1, electric capacity C4 pin 2, diode D2 negative electrode, Hall switching element I4U1 pin 1 is connected, Hall switching element I4U1 pin 2 and resistance R5 pin 2, resistance R6 pin 2 is connected, and resistance R6 pin 1 is connected with triode Q1 base stage, triode Q1 collector and electric capacity C5 pin 1, connector 21J1 pin 2 is connected, and programmable hall element 5U3 pin 4 is connected with electric capacity C6 pin 1, and electric capacity C6 pin 2 is connected with resistance R7 pin 1, and resistance R7 pin 2 is connected with triode Q2 base stage, and triode Q2 collector is connected with connector 21J1 pin 3,
Electric capacity C1 pin 2, electric capacity C2 pin 2, electric capacity C3 pin 2, electric capacity C4 pin 1, electric capacity C5 pin 2, electric capacity C6 pin 2, electric capacity C7 pin 1, electric capacity C8 pin 1, electric capacity C9 pin 2, electric capacity C10 pin 2, diode D1 anode, diode D2 anode, diode D4 anode, Hall switching element II6U1 pin 3, Hall switching element I4U1 pin 3, programmable hall element 5U3 pin 2, power supply chip U4 pin 2, triode Q2 emitter are connected with power cathode.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (5)
1. an automatic clutch sensing system, is characterized in that: comprise automatic clutch sensor and sensor treatment circuit, and automatic clutch sensor changes into low and high level signal through sensor treatment circuit after producing switching signal and flows to automotive control system;
Described automatic clutch sensor comprises Clutch main cylinder (1), piston (2), permanent magnet (3), induction installation (7);
Described induction installation (7) comprises Hall switching element, programmable hall element (5);
Hall switching element I (4), Hall switching element II (6) is comprised described in described Hall switching element;
It is inner that piston (2) is positioned at Clutch main cylinder (1), can along Clutch main cylinder (1) axis shift, piston (2) is provided with permanent magnet (3), when piston (2) is subjected to displacement, be arranged on permanent magnet (3) the also and then displacement together on piston (2);
Be provided with induction installation (7) in Clutch main cylinder (1) outside, the entirety that the entirety that Clutch main cylinder (1) and induction installation (7) form and piston (2) and permanent magnet (3) form produces relative motion when stepping on clutch;
Hall switching element I (4), programmable hall element (5), Hall switching element II (6) are for responding to the change of magnetic field strength of permanent magnet, it utilizes the magnetic bias induction change of permanent magnet (3), namely forward is perpendicular to the magnetic field in Hall switching element induction point direction, that is effective magnetic field, Hall switching element I (4) is that forward magnetic field is effective, and Hall switching element II (6) is that reversed magnetic field is effective;
When stepping on clutch pedal, permanent magnet 3 magnetic field is along with motion change, and the programmable hall element (5) in induction installation (7), according to the PWM square wave of changes of magnetic field output duty cycle linear change, reflects the stroke of Clutch main cylinder.
2. automatic clutch sensing system according to claim 1, it is characterized in that: described sensor treatment circuit comprises connector J1 (21), electric capacity C1, resistance R1, resistance R2, electric capacity C2, diode D1, Hall switching element II (6) U1, electric capacity C3, resistance R3, resistance R4, electric capacity C4, diode D2, Hall switching element I (4) U2, resistance R5, resistance R6, triode Q1, electric capacity C5, programmable hall element (5) U3, electric capacity C6, electric capacity C7, resistance R7, triode Q2, diode D3, diode D4, electric capacity C9, electric capacity C8, power supply chip U4, electric capacity C10,
Its connector J1 (21) terminal 2,3,4 pin exports, and 5 pin connect positive source, and 1 pin connects power cathode, positive source and electric capacity C1 pin, diode D3 anode, resistance R1 pin 2, resistance R2 pin 2, resistance R3 pin 2, resistance R4 pin 2, resistance R5 pin 1, triode Q1 emitter is connected, diode D3 negative electrode and diode D4 negative electrode, electric capacity C9 pin 1, electric capacity C8 pin 2, power supply chip U4 pin 1 is connected, power supply chip U4 pin 3 and electric capacity C10 pin 1, electric capacity C7 pin 2, programmable hall element (5) U3 pin 1 is connected, resistance R1 pin 1 and R2 pin 1, electric capacity C2 pin 1, diode D1 negative electrode, Hall switching element II (6) U1 pin 1 is connected, Hall switching element II (6) U1 pin 2 and electric capacity C3 pin 1, connector J1 (21) pin 4 is connected, resistance R3 pin 1 and R4 pin 1, electric capacity C4 pin 2, diode D2 negative electrode, Hall switching element I (4) U2 pin 1 is connected, Hall switching element I (4) U2 pin 2 and resistance R5 pin 2, resistance R6 pin 2 is connected, and resistance R6 pin 1 is connected with triode Q1 base stage, triode Q1 collector and electric capacity C5 pin 1, connector J1 (21) pin 2 is connected, programmable hall element (5) U3 pin 4 is connected with electric capacity C6 pin 1, and electric capacity C6 pin 2 is connected with resistance R7 pin 1, and resistance R7 pin 2 is connected with triode Q2 base stage, triode Q2 collector is connected with connector J1 (21) pin 3
Electric capacity C1 pin 2, electric capacity C2 pin 2, electric capacity C3 pin 2, electric capacity C4 pin 1, electric capacity C5 pin 2, electric capacity C6 pin 2, electric capacity C7 pin 1, electric capacity C8 pin 1, electric capacity C9 pin 2, electric capacity C10 pin 2, diode D1 anode, diode D2 anode, diode D4 anode, Hall switching element II (6) U1 pin 3, Hall switching element I (4) U2 pin 3, programmable hall element (5) U3 pin 2, power supply chip U4 pin 2, triode Q2 emitter are connected with power cathode.
3. automatic clutch sensing system according to claim 1, is characterized in that: described permanent magnet (3) is annular, and the axis direction of annular is its magnetizing direction.
4. automatic clutch sensing system according to claim 1, it is characterized in that: described Hall switching element I (4), in operating temperature range be: during-40 DEG C ~ 140 DEG C of scopes, its span opening magnetic field is 3.4 ~ 7.7mT, and its span of closing magnetic field is 1.8 ~ 5.4mT;
Described Hall switching element II (6), in operating temperature range is: during-40 DEG C ~ 140 DEG C of scopes, and its span opening magnetic field is-3 ~-7.7mT, and its span of closing magnetic field is-1.7 ~-5.4mT.
5. automatic clutch sensing system according to claim 4, it is characterized in that: during described automatic clutch action, the scope of Hall switching element I (4) magnetic field intensity is 3.4 ~ 7.7mT, the scope of Hall switching element II (6) magnetic field intensity is-3 ~-7.7mT, now Hall switching element is opened, and changes into the electric signal needed for automobile clutch system by induction installation (7);
During automatic clutch release, the scope of Hall switching element I (4) magnetic field intensity is 1.8 ~ 5.4mT, the scope of Hall switching element II (6) magnetic field intensity is-1.7 ~-5.4mT, now Hall switching element is closed, and changes into the electric signal needed for automobile clutch system by induction installation (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734113.9A CN105203010B (en) | 2015-11-03 | 2015-11-03 | Automatic clutch sensing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510734113.9A CN105203010B (en) | 2015-11-03 | 2015-11-03 | Automatic clutch sensing system |
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| CN105203010A true CN105203010A (en) | 2015-12-30 |
| CN105203010B CN105203010B (en) | 2018-04-24 |
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| CN201510734113.9A Active CN105203010B (en) | 2015-11-03 | 2015-11-03 | Automatic clutch sensing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110654307A (en) * | 2019-09-18 | 2020-01-07 | 东风柳州汽车有限公司 | Brake lamp sensor |
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| CN102996689A (en) * | 2011-09-16 | 2013-03-27 | 株式会社万都 | Brake master cylinder |
| CN103253183A (en) * | 2013-06-08 | 2013-08-21 | 昆山市兴利车辆科技配套有限公司 | Automobile brake lamp sensor system |
| CN103264657A (en) * | 2013-06-08 | 2013-08-28 | 昆山市兴利车辆科技配套有限公司 | Vehicle brake lamp sensor |
| CN205120023U (en) * | 2015-11-03 | 2016-03-30 | 昆山市兴利车辆科技配套有限公司 | Car separation and reunion sensor system |
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2015
- 2015-11-03 CN CN201510734113.9A patent/CN105203010B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1789689A (en) * | 2004-12-07 | 2006-06-21 | 环球冷却有限公司 | Apparatus for determining free piston position and an apparatus for controlling free piston position |
| CN102996689A (en) * | 2011-09-16 | 2013-03-27 | 株式会社万都 | Brake master cylinder |
| CN103253183A (en) * | 2013-06-08 | 2013-08-21 | 昆山市兴利车辆科技配套有限公司 | Automobile brake lamp sensor system |
| CN103264657A (en) * | 2013-06-08 | 2013-08-28 | 昆山市兴利车辆科技配套有限公司 | Vehicle brake lamp sensor |
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| CN110654307A (en) * | 2019-09-18 | 2020-01-07 | 东风柳州汽车有限公司 | Brake lamp sensor |
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| CN105203010B (en) | 2018-04-24 |
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