CN104389687A - Noncontact electronic air damper - Google Patents
Noncontact electronic air damper Download PDFInfo
- Publication number
- CN104389687A CN104389687A CN201410510069.9A CN201410510069A CN104389687A CN 104389687 A CN104389687 A CN 104389687A CN 201410510069 A CN201410510069 A CN 201410510069A CN 104389687 A CN104389687 A CN 104389687A
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- China
- Prior art keywords
- throttle
- sensor assembly
- displacement sensor
- angular displacement
- drive motor
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a noncontact electronic air damper, which belongs to an engine supporting device. The noncontact electronic air damper comprises a shell and a lower cover, wherein a cavity is formed inside the shell and the lower cover, a drive motor is installed in the cavity, the output end of the drive motor is connected with an air damper shaft in a power manner through a gear set, and the air damper shaft is provided with an air damper plate; an angular displacement sensor assembly is also installed in the cavity, a magnet and a Hall element which is used for measuring a rotating magnetic field in a noncontact manner are installed on a circuit board of the angular displacement sensor assembly; a return torsion spring is also installed between the gear set and the angular displacement sensor assembly, and the return torsion spring is fixedly connected with the tail end of the air damper shaft. An accelerator pedal position sensor in an electric control system and two noncontact sensors form an air damper openness closed-loop control system. The noncontact electronic air damper has characteristics of high control precision (rotation precision of the air damper shaft) and sensitivity in reaction, and the problem that the response of an execution mechanism is inconsistent with the control prospect can be solved.
Description
Technical field
The present invention relates to a kind of motor match equipment, in particular, the present invention relates generally to a kind of non-contact electronic throttle.
Background technique
The effect of automobile engine system throttle body assembly is the charge flow rate controlling motor, determines the operating conditions of motor.Driver carrys out control node valve opening by operation gas pedal.Tradition throttle body assembly adopts mechanical connection manner, to be in transmission connection gas pedal and throttle body assembly by pull bar or drag-line, therefore throttle opening depends on the position of gas pedal completely, the i.e. operation intention of driver, but from power character and economy point, motor is not always in optimal operating condition completely, and the misoperation of driver also brings hidden danger to Security.Electronic air throttle body eliminates traditional mechanical connection, by ECU (Electrical Control Unit) drive electronic air throttle body quickly and accurately aperture put in place.Its advantage is can according to the best aperture of the demand of driver and car load various running condition determination closure, motor is discharged and reaches best, ensure the power performance and the economy performance of vehicle the best, and there is polling power controlling, cruise the controlling functions such as controls, raising Security; Formal because traditional throttle body is connected by drag-line with between accelerator pedal, the aperture of throttle body is controlled by accelerator pedal by driver completely.This mechanical connection manner can only make electronic engine management system by driver, the operation of accelerator pedal be controlled to the work of motor completely, can not guarantee that the working state of motor and the runnability of automobile form best mating.Because whole operating process is all come by mechanical linkage, therefore from driver by bend the throttle send operational order to actuator make response just there will be one time lag phenomenon, will cause so the best fuel-economy performance desired by driver and emission performance and motor be realize often and different, be thus necessary to do the throttle valve structure of available engine further to improve and research.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, a kind of non-contact electronic throttle is provided, mechanical linkage is relied on to expect to solve throttle opening in prior art, what cause actuator to make is corresponding inconsistent with expection, causes fuel-economy performance and emission performance to occur the technical problems such as deviation.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of non-contact electronic throttle provided by the present invention, comprise housing and lower cover, the inside of described housing and lower cover forms cavity, in described cavity, drive motor is installed, the output terminal of described drive motor is connected with throttle plate pin power by gear train, described throttle plate pin is provided with throttle blade, and described housing is provided with the through hole corresponding with throttle blade; Angular displacement sensor assembly for detecting throttle blade displacement is also installed in described cavity, the circuit board of described angular displacement sensor assembly is at least provided with magnet, and for the Hall element of non-contact measurement rotating magnetic field potential difference; Also be provided with reduction torsion spring between described gear train and angular displacement sensor assembly, described reduction torsion spring is fixedly connected with closure the tip of the axis, rotates throttle valve sheet be reset to initial position for driving throttle plate pin.
As preferably, further technological scheme is: described gear train comprises driving gear, driving gear and imperfect reseting gear, described driving gear is arranged on drive motor output terminal, driving gear is arranged on the inside of cavity, imperfect reseting gear is arranged on closure the tip of the axis, described driving gear, imperfect reseting gear are meshed with driving gear respectively, for driving imperfect reseting gear to rotate by driving gear by driving gear.
Further technological scheme is: the circuit board of described angular displacement sensor assembly is provided with magnetic receiver, and described magnet and Hall element are installed on magnetic receiver; The position of described Hall element is mutually corresponding with closure the tip of the axis.
Further technological scheme is: the Hall element on described angular displacement sensor assembly circuit board is by the first copper coin winding displacement inserts access socket, and described drive motor is by the second copper coin winding displacement inserts access socket.
Further technological scheme is: circuit board and the drive motor of described angular displacement sensor assembly all access ECU (Electrical Control Unit), for the rotation angle that the throttle blade fed back according to angular displacement sensor assembly by ECU (Electrical Control Unit) is current, control the real-time input voltage of drive motor.
Further technological scheme is: be also provided with seal ring between described housing and lower cover.
Further technological scheme is: described drive motor is direct current generator, and described direct current generator is arranged in cavity by motor cover.
Further technological scheme is: the end of described throttle plate pin is arranged on the inwall of cavity by bearing.
Further technological scheme is: described throttle plate pin drives the angle of swing of throttle blade to be 0 to 80 degree.
Compared with prior art, one of beneficial effect of the present invention is:
1, the closed loop control system to throttle opening is formed by the accelerator pedal position sensor in automatical control system and two-way noncontacting proximity sensor, there is control accuracy high (precision that throttle plate pin rotates), sensitive feature, and under any operating mode all direct aperture by DC motor Driver throttle blade, improve the power character of motor, Economy and Security; Also effectively improve response that actuator makes and control expect inconsistent problem, the fuel-economy performance of lifting motor and emission performance.
2, by setting up torsion spring at closure the tip of the axis, make when direct current generator breaks down and causes normally working, throttle blade under the effect of torsion spring, can always be in high idle speed state, thus adds the Security of engine system.
Accompanying drawing explanation
Fig. 1 is the structural representation for illustration of one embodiment of the invention;
Fig. 2 is the gear train structural representation for illustration of another embodiment of the present invention;
Fig. 3 is for illustration of being the Hall element of another embodiment of the present invention and jack conspectus;
In figure, 1 be housing, 11 be through hole, 2 be lower cover, 3 be drive motor, 4 be gear train, 41 be driving gear, 42 be driving gear, 43 be imperfect reseting gear, 5 be throttle plate pin, 6 be throttle blade, 7 be circuit board, 8 be magnet, 9 be Hall element, 10 be reduction torsion spring, 12 be seal ring for magnetic receiver, 13 is the first copper coin winding displacement, 14 for socket, 15 is the second copper coin winding displacement, 16,17 be bearing, 18 for drive motor plug.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
Shown in figure 1, one embodiment of the present of invention are a kind of non-contact electronic throttles, in the present embodiment, electronic throttle should comprise housing 1 and lower cover 2, and makes housing 1 form cavity, what is more important with the inside of lower cover 2, drive motor 3 is installed in above-mentioned cavity, the output terminal of drive motor 3 is connected with throttle plate pin 5 power by gear train 4, throttle plate pin 5 is provided with throttle blade 6, also need arranges the through hole 11 corresponding with throttle blade 6 on aforesaid housing 1 simultaneously; Further, also need angular displacement sensor assembly for detecting throttle blade 6 displacement is installed in cavity, the circuit board 7 of described angular displacement sensor assembly is at least provided with magnet 8, and for the Hall element 9 of non-contact measurement rotating magnetic field potential difference; Also be provided with reduction torsion spring 10 between described gear train 4 and angular displacement sensor assembly, described reduction torsion spring 10 is fixedly connected with the end of throttle plate pin 5, rotates throttle valve sheet 6 be reset to initial position for driving throttle plate pin 5.
In the present embodiment, magnet 8 provides the magnetic field of rotation for Hall element 9, throttle blade 6 is converted into the rotation in magnetic field around the rotation of throttle plate pin 5, by Hall element 9, rotation signal is fed back to ECU (Electrical Control Unit), namely concrete technological scheme is that the circuit board 7 of above-mentioned angular displacement sensor assembly all accesses ECU (Electrical Control Unit) with drive motor 3, for the rotation angle that the throttle blade 6 fed back according to angular displacement sensor assembly by ECU (Electrical Control Unit) is current, control the real-time input voltage of drive motor 3.Form the closed loop control system to throttle opening by the accelerator pedal position sensor in automatical control system and two-way noncontacting proximity sensor, there is control accuracy high (precision that throttle plate pin rotates), sensitive feature.
Simultaneously, by setting up reduction torsion spring 10 at the end of throttle plate pin 5, make when drive motor breaks down and causes normally working, throttle blade 6 can under the effect of reduction torsion spring 10, always be in high idle speed state, thus add the Security of engine system.It is comparatively suitable that above-mentioned throttle plate pin 5 drives the angle of swing of throttle blade 6 to be generally 0 to 80 degree, and the bearing 17 that the rotation of throttle plate pin 5 can rely on its end to be arranged on the inwall of cavity realizes.
Shown in figure 2, in the embodiment that the present invention is more preferably for technical solution problem, for the power exported drive motor 3 carries out deceleration force amplifier, the concrete structure of gear train 4 is comprising driving gear 41, driving gear 42 and imperfect reseting gear 43, described driving gear 41 is arranged on the output terminal of drive motor 3, driving gear 42 is arranged on the inside of cavity, imperfect reseting gear 43 is arranged on the end of throttle plate pin 5, described driving gear 41, imperfect reseting gear 43 is meshed with driving gear 42 respectively, for driving imperfect reseting gear 43 to rotate by driving gear 41 by driving gear 42.
More specifically, for the open position making the output signal of angular displacement sensor assembly accurately can reflect closure valve block, also can set up magnetic receiver 12 on the circuit board 7 of above-mentioned angular displacement sensor assembly, described magnet 8 is installed on magnetic receiver 12 with Hall element 9; And make the position of Hall element 9 mutually corresponding with the end of throttle plate pin 5, and both are preferably made to connect as one the structure of formula.Namely throttle plate pin 5 adopts flat groove drive fit structure with the jointing of angular displacement sensor assembly, the magnetic receiver 12 being provided with Hall element 9 can be connected as one with the end of throttle plate pin 5, make the output signal of angular displacement sensor assembly accurately can reflect the open position of throttle blade 6.
Shown in composition graphs 3, the electrical structure of the artificial specification closure inside further of invention, also the linkage structure between above-mentioned angular displacement sensor assembly and drive motor is optimized, be specially by the Hall element 9 on angular displacement sensor assembly circuit board 7 by the first copper coin winding displacement 13 inserts access socket 14, drive motor 3 passed through the second copper coin winding displacement 15 inserts access socket 14.
Further, for promoting the sealing forming cavity between above-mentioned housing 1 and lower cover 2, preferably set up seal ring 16 more between, simultaneously for shielding extraneous electromagnetic interference as much as possible, the sheet metal carried out housing 1 and lower cover 2 adopt permeability higher is processed into.And consider the accuracy of drive motor 3, be quick on the draw, and be convenient to the objective demands such as servocontrol, preferably adopt direct current generator as above-mentioned drive motor 3 in the present embodiment, and direct current generator is arranged in cavity by motor cover.
As mentioned here above, direct current generator is adopted in electronic throttle of the present invention, direct current generator precision is high, be quick on the draw, be convenient to servocontrol, control direct current generator and adopt pulse duration modulation (PWM) technology, have the advantages that frequency is high, efficiency is high, specific power is high, reliability is high.
And the present invention proposes a kind of design proposal of brand-new electronic air throttle body at present, it adopts the noncontacting proximity sensor of two feedback signal, the direct current generator that control performance the is high and installation stability of electronic air throttle body entirety is optimized, can the control accuracy that closure valve block is rotated be improved, extend the working life of electronic air throttle body.
Specifically, the present invention is a kind of closed-loop system of the electronic throttle motor-driven realized by Hall element.Direct current generator is driving element, and gear train 4, reduction torsion spring 10, throttle blade 6 etc. constitute executive component, and the angular displacement sensor assembly below throttle plate pin 5 end is angle of swing feedback elements.Direct current generator input voltage produces armature supply in armature circuit, and armature supply and magnetic flux interact and produce electromagnetic torque, and electromagnetic torque overcomes the load in closure rotating shaft, drives throttle blade 6 to move, realizes the control of throttle blade 6 real time position.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and mode of execution, these amendments and mode of execution will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the constituent elements of subject combination layout and/or layout.Except the modification of carrying out constituent elements and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. a non-contact electronic throttle, comprise housing (1) and lower cover (2), described housing (1) forms cavity with the inside of lower cover (2), it is characterized in that: drive motor (3) is installed in described cavity, the output terminal of described drive motor (3) is connected with throttle plate pin (5) power by gear train (4), described throttle plate pin (5) is provided with throttle blade (6), described housing (1) is provided with the through hole (11) corresponding with throttle blade (6); Angular displacement sensor assembly for detecting throttle blade (6) angle of swing is also installed in described cavity, the circuit board (7) of described angular displacement sensor assembly is at least provided with magnet (8), and for the Hall element (9) of non-contact measurement rotating magnetic field potential difference; Reduction torsion spring (10) is also installed between described gear train (4) and angular displacement sensor assembly, described reduction torsion spring (10) is fixedly connected with the end of throttle plate pin (5), rotates throttle valve sheet (6) be reset to initial position for driving throttle plate pin (5).
2. non-contact electronic throttle according to claim 1, it is characterized in that: described gear train (4) comprises driving gear (41), driving gear (42) and imperfect reseting gear (43), described driving gear (41) is arranged on the output terminal of drive motor (3), driving gear (42) is arranged on the inside of cavity, imperfect reseting gear (43) is arranged on the end of throttle plate pin (5), described driving gear (41), imperfect reseting gear (43) is meshed with driving gear (42) respectively, for driving imperfect reseting gear (43) to rotate by driving gear (41) by driving gear (42).
3. non-contact electronic throttle according to claim 1 and 2, it is characterized in that: the circuit board (7) of described angular displacement sensor assembly is provided with magnetic receiver (12), described magnet (8) and Hall element (9) are installed on magnetic receiver (12); The position of described Hall element (9) is mutually corresponding with the end of throttle plate pin (5).
4. non-contact electronic throttle according to claim 3, it is characterized in that: the Hall element (9) on described angular displacement sensor assembly circuit board (7) is by the first copper coin winding displacement (13) inserts access socket (14), and described drive motor (3) is by the second copper coin winding displacement (15) inserts access socket (14).
5. the non-contact electronic throttle according to claim 1 or 4, it is characterized in that: circuit board (7) and the drive motor (3) of described angular displacement sensor assembly all access ECU (Electrical Control Unit), for the rotation angle that the throttle blade (6) fed back according to angular displacement sensor assembly by ECU (Electrical Control Unit) is current, control the real-time input voltage of drive motor (3).
6. the non-contact electronic throttle according to claim 1 or 4, is characterized in that: be also provided with seal ring (16) between described housing (1) and lower cover (2).
7. non-contact electronic throttle according to claim 1, is characterized in that: described drive motor (3) is direct current generator, and described direct current generator is arranged in cavity by motor cover.
8. non-contact electronic throttle according to claim 1, is characterized in that: the end of described throttle plate pin (5) is arranged on the inwall of cavity by bearing (17).
9. the non-contact electronic throttle according to claim 1 or 8, is characterized in that: described throttle plate pin (5) drives the angle of swing of throttle blade (6) to be 0 to 80 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510069.9A CN104389687A (en) | 2014-09-29 | 2014-09-29 | Noncontact electronic air damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510069.9A CN104389687A (en) | 2014-09-29 | 2014-09-29 | Noncontact electronic air damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389687A true CN104389687A (en) | 2015-03-04 |
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ID=52607636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410510069.9A Pending CN104389687A (en) | 2014-09-29 | 2014-09-29 | Noncontact electronic air damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389687A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121832A (en) * | 2016-08-12 | 2016-11-16 | 江门市英合创展电子有限公司 | A kind of inlet manifold path control of gear train transmission |
| CN106401775A (en) * | 2016-11-15 | 2017-02-15 | 广州杰治文电子科技有限公司 | Electronically-controlled gasoline injection system for motorcycles |
| CN107023702A (en) * | 2017-06-19 | 2017-08-08 | 深圳亿昇动力科技有限公司 | Worm gear supercharging valve positioner |
| CN110206649A (en) * | 2019-06-30 | 2019-09-06 | 湖北汽车工业学院 | A kind of aperture-type electronic throttle valve device |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
| CN115405429A (en) * | 2022-09-29 | 2022-11-29 | 浙江好亚电控系统有限公司 | Hall sensor and electronic throttle valve assembly |
-
2014
- 2014-09-29 CN CN201410510069.9A patent/CN104389687A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121832A (en) * | 2016-08-12 | 2016-11-16 | 江门市英合创展电子有限公司 | A kind of inlet manifold path control of gear train transmission |
| CN106401775A (en) * | 2016-11-15 | 2017-02-15 | 广州杰治文电子科技有限公司 | Electronically-controlled gasoline injection system for motorcycles |
| CN106401775B (en) * | 2016-11-15 | 2023-08-04 | 广州杰治文电子科技有限公司 | Electric control gasoline injection system for motorcycle |
| CN107023702A (en) * | 2017-06-19 | 2017-08-08 | 深圳亿昇动力科技有限公司 | Worm gear supercharging valve positioner |
| CN110206649A (en) * | 2019-06-30 | 2019-09-06 | 湖北汽车工业学院 | A kind of aperture-type electronic throttle valve device |
| CN110206649B (en) * | 2019-06-30 | 2023-11-24 | 湖北汽车工业学院 | Aperture type electronic throttle valve device |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
| CN115405429A (en) * | 2022-09-29 | 2022-11-29 | 浙江好亚电控系统有限公司 | Hall sensor and electronic throttle valve assembly |
| CN115405429B (en) * | 2022-09-29 | 2023-12-01 | 浙江好亚电控系统有限公司 | Hall sensor and electronic throttle valve assembly |
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Legal Events
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |