CN102128090A - Electronic throttle valve body for diesel engine - Google Patents
Electronic throttle valve body for diesel engine Download PDFInfo
- Publication number
- CN102128090A CN102128090A CN2010101047806A CN201010104780A CN102128090A CN 102128090 A CN102128090 A CN 102128090A CN 2010101047806 A CN2010101047806 A CN 2010101047806A CN 201010104780 A CN201010104780 A CN 201010104780A CN 102128090 A CN102128090 A CN 102128090A
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- throttle
- throttle valve
- socket
- position sensor
- reseting gear
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses an electronic throttle valve body for a diesel engine, which comprises a body, a printed circuit board of a control circuit, a throttle valve plate, a limit block, a bearing, a throttle valve shaft, a magnet component, a socket, a restoring gear, a direct-current motor, a restoring spring and a throttle valve position sensor assembly, wherein the printed circuit board of the control circuit is welded with the socket; the throttle valve shaft, the magnet component and the restoring gear form a restoring gear component; the restoring gear component is connected with the bearing; the throttle valve plate is inserted into the throttle valve shaft; the direct-current motor is welded on the socket; the restoring spring is positioned between the restoring gear component and the throttle valve position sensor assembly; the throttle valve position sensor assembly is fixed on the body; and the limit block is positioned between the body and the bearing. The electronic throttle valve body is not interfered by an external magnetic field, an integral control system is sealed in a cavity, and a protective cover is made of a metal plate with high magnetic conductivity to shield external electromagnetic interference.
Description
Technical field
The present invention relates to a kind of diesel engine, particularly a kind of electronic air throttle body of diesel engine.
Background technique
It is to continue variable air mass flow to motor that the diesel engine electric injection system adopts throttle body assembly, its effect, and the vibration when reducing air mass flow and avoid tail-off.For adapting to various operating modes or cooperating exhaust gas recirculation (EGR, Exhaust Gas Recirculation) work and different air mass flows is provided, realize rational air fuel ratio, make its sufficient burning, reduce discharging, and improved engine power performance, Economy, travelling comfort.
The throttle body of use for diesel engine is the contact-type angular position sensor mostly at present, and its shortcoming is because the resistive film sensor accuracy that causes easy to wear reduces, thereby influences the control accuracy of throttle body.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electronic air throttle body of diesel engine, it is not subjected to extraneous magnetic interference, and The whole control system is enclosed in the cavity, and protective housing is used permeability instead than higher sheet metal manufacturing, can shield extraneous electromagnetic interference.
For solveing the technical problem, the invention provides a kind of electronic air throttle body of diesel engine, it is characterized in that, it comprises body, the printed circuit board (PCB) of control circuit, throttle blade, limiting stopper, bearing, throttle plate pin, magnet assemblies, socket, reseting gear, direct current generator, Returnning spring and throttle position sensor assembly, the printed circuit board (PCB) of control circuit and socket welding, throttle plate pin, magnet assemblies and reseting gear are formed the reseting gear assembly, the reseting gear assembly is connected with bearing, throttle blade is inserted in the throttle plate pin, direct current generator is welded on the socket, Returnning spring is between reseting gear assembly and throttle position sensor assembly, the throttle position sensor assembly is fixed on the body, and limiting stopper is between body and bearing.
Preferably, of described Returnning spring turns round in the groove that arm is suspended to reseting gear, and another is turned round in the preformed groove that arm is suspended to the throttle position sensor assembly.
Preferably, described socket comprises the first copper coin winding displacement inserts and the second copper coin winding displacement inserts, the printed circuit board (PCB) welding of the first copper coin winding displacement inserts and control circuit, the second copper coin winding displacement inserts welding of direct current generator and socket.
Preferably, described throttle plate pin, magnet assemblies and reseting gear are injection molded into an integral body.
Preferably, described throttle position sensor assembly comprises capping, sensor chip and protective housing, and sensor chip seals in protective housing and by capping.
Positive progressive effect of the present invention is:
The compact structure of A, whole throttle body has reduced between the engine air that occupies.When other unit failure or working environment when changing in motor, the throttle body, control circuit allow throttle body get back to default location can for an instruction.If direct current generator or other control circuit break down, Returnning spring also can allow the closure valve block get back to default location.
B, the winding displacement inserts welding ends that is connected with control circuit board have adopted the particular curve design, position form error when having compensated assembling, welding error and external environment are expanded with heat and contract with cold and are changed the deformation that causes etc., and the welding stress of having avoided above these factors to cause causes problems such as soldering point is insecure.
C, strengthened reliability and stability that motor is installed, simplified assembly process, this motor installation and design has changed in the past the mode with the positioning ring location, and has cancelled the wave washer that is used for the motor vibrationproof.The location that motor is installed on this throttle body compresses part---and socket adopts the engineering plastics manufacturing, realizes the shape and the status requirement of positioning hole and other matching hole with precise injection molding, because embedded copper coin has increased intensity simultaneously in the plastics, has also strengthened toughness.Motor with screw lock after, utilized the toughness of self material and structural design to make the motor can carry the impulsive load of all directions fully.This design has not only solved the reliability of location, and has prevented the vibration that motor produces when being hit load, and has reduced the required part of assembling, has avoided neglected loading, has also shortened man-hour then.
D, resetting system are made up of reseting gear assembly and Returnning spring, the design's characteristics are that the reseting gear assembly has adopted the mode of integral molded plastic that axle is injected into reseting gear, take during injection moulding to inject reseting gear with the cylindrical location of axle, so both guarantee the momentum that gear is jumped with respect to axle, and improved the process capability of making.And Placement in the past to be axle pass through laser bonding together with an inserts that is embedded in the gear, in order to guarantee the jerk value of reseting gear with respect to axle, just must strictly control inserts and axle matching hole precision and matching hole and mould Location accuracy etc., increase manufacture difficulty, and reduced quantity-produced stability.
E, throttle position sensor assembly have adopted the sensor chip of perception magnetoresistive type angular orientation, be enclosed in a plastic chamber the inside by injection moulding, for energy perception external magnetic field, magnet assemblies is imbedded in the gear assembly inside of rotation over there in advance, magnet assemblies is made up of magnet and shielding iron hoop, not only stable magnetic field can be provided but also can shield external magnetic field.The advantage of this sensor is voltage and linear correction that can programme starting point, terminal point are set, and it to also have an important advantage be that it can not reduce precision and stability with the external magnetic field Strength Changes, because magnet is certain at the back magnetic direction that magnetizes, but magnet can be decayed gradually along with the variation magnetic field intensity of environment such as temperature, sensor for the sort of perceptive intensity, decay to a certain degree with magnetic intensity and will reduce precision, but use the sensor chip of perception magnetoresistive type angular orientation to solve above problem, its perception magnetic direction.
The electronic air throttle body of F, diesel engine of the present invention is integrated control circuit, can drive valve block to appointed positions by reduction gear according to the position signal control direct current generator that the outside is given, main three parts of this control circuit are formed: drive circuit, feeder loop and process chip, the feedback signal that process chip is received outside signal while pick-up transducers compares after the computing, give an order drive motor to specified position, and whole process is closed loop control.And software programming adopts PID mathematical model framework effectively to solve the nonlinear problem of movement process, strengthened antijamming capability.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of middle gear parts of the present invention.
Fig. 3 is the structural representation of socket among the present invention.
Fig. 4 is the structural representation of throttle position sensor assembly among the present invention.
Fig. 5 is the structural representation of reseting gear among the present invention.
Fig. 6 is the structural representation of throttle position sensor assembly among the present invention and reseting gear combination.
Embodiment
Lift a preferred embodiment below, and come the clearer the present invention that intactly illustrates in conjunction with the accompanying drawings.
The electronic air throttle body of diesel engine of the present invention belongs to the vitals of automotive engine air intake system, and it is connected with the intake manifold.Extremely shown in Figure 6 as Fig. 1, the electronic air throttle body of diesel engine of the present invention comprises body 1, the printed circuit board (PCB) 2 of control circuit, throttle blade 3, limiting stopper 4, bearing 5, throttle plate pin 6, magnet assemblies 7, full cut-off adjusting screw 8, socket 9, reseting gear 10, intermediate gear 11, direct current generator 12, Returnning spring 16 and throttle position sensor (Throttle Position Sensor, TPS) assembly 17, the printed circuit board (PCB) 2 of control circuit and socket 9 welding, throttle plate pin 6, magnet assemblies 7 and reseting gear 10 are formed the reseting gear assembly, the reseting gear assembly is connected with bearing 5, limiting stopper 4 is between body 1 and bearing 5, throttle blade 3 is inserted in the throttle plate pin 6, direct current generator 12 is welded on the socket 9, sensing system comprises magnet assemblies 7 and throttle position sensor assembly 17, Returnning spring 16 is between reseting gear assembly and throttle position sensor assembly 17, throttle position sensor assembly 17 comprises bubble module 18, capping 19, sensor chip 20 and protective housing 21, throttle position sensor assembly 17 is fixed on the body 1 by fastening screw trip bolt, sensor chip 20 is in protective housing 21 and by capping 19 sealings, protective housing 21 parts just are inserted in the circular pit of magnet assemblies 7, come the variation of induction field direction by rotation reseting gear 10.
The reseting gear assembly is injection molded into an integral body to throttle plate pin, magnet assemblies and reseting gear by Shooting Technique, by in intrinsic bearings, realizes the connection of rolling then, reduces the frictional force of throttle plate pin when rotating.Resetting system is by reseting gear 10, Returnning spring 16, throttle position sensor assembly 17 is formed, one of Returnning spring 16 turns round in the groove 23 that arm is suspended to reseting gear 10, another is turned round in the preformed groove 24 that arm is suspended to throttle position sensor assembly 17, be pressed in the die cavity between a reseting gear 10 and the throttle position sensor assembly 17 by throttle position sensor assembly 17 envelopes, be used to prevent Returnning spring inclination etc., because the twisting force of Returnning spring 16 drives reseting gear 10 automatically and turns to default location, allow the boss 25 on the reseting gear 10 contact, throttle blade is opened with positive stop lug boss 13 on the body 1; When needs were closed, the reaction force that overcomes Returnning spring by the driving reseting gear arrived closed position, and the boss 25 on the reseting gear 10 contacts with the head of full cut-off adjusting screw 8 at this moment, stops operating; When direct current generator or control circuit broke down, closure can be got back to default location automatically under the effect of the torsion of Returnning spring.
After the assembling of control mechanism is intact, in order to prevent interference and the infringement of external environment, added protective housing in the above to control mechanism, protective housing presses with body and is connected, and between has also been filled sealing material.Because what the protective housing material adopted is the very high metallic material manufacturing of permeability, has avoided the electronic unit of external electromagnetic wave interference inside then, improved the stability of control circuit operation.
The H bridge circuit that the printed circuit board (PCB) of control circuit mainly is made up of single-chip microcomputer, metal-oxide-semiconductor (Metal-oxide-semicondutor type field effect transistor), resistance, electric capacity, power supply, inductance, triode etc. are formed.ECU (Electronic Control Unit, electronic control unit) after signal is input to single-chip microcomputer, signal feed back according to position transducer, through PID (Proportional-Integral-Derivative, proportional-integral-differential) sends the execution signal after the adjusting and give the H bridge, the running of H bridge control motor arrives ECU demand angle position, and entire circuit is closed loop control.
Working procedure of the present invention is as follows:
The electronic air throttle body of diesel engine of the present invention carries Drive and Control Circuit, can be according to the given PWM of ECU (Pulse Width Modulation, pulsewidth modulation) signal is controlled the closure opening angle, when ECU sends a signal to throttle body, when the control circuit in the throttle body receives signal, and according to the feedback signal of position transducer, compare analysis through process chip, send the execution signal then and drive direct current generator to drive circuit, direct current generator slows down by intermediate gear, drives reseting gear and rotates.When throttle blade is followed the throttle plate pin rotation, change the area of throttle body passage, change the air mass flow of air inlet then.
The common default conditions of throttle body are standard-sized sheet, and the boss 25 on the reseting gear is contacted with positive stop lug boss 13 on the body.Reseting gear and throttle plate pin are to become an assembly by injection moulding, and when reseting gear rotated, throttle plate pin was also followed rotation.When if closure need be closed, control circuit control motor turns to full close position, and a boss 25 on the reseting gear is contacted with full cut-off adjusting screw 8.When the throttle body electronic circuit broke down, reseting gear can be got back to default location Anywhere from what leave fully open position under the active force of spring, guaranteed engine health.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these mode of executions.Therefore, protection scope of the present invention is limited by appended claims.
Claims (5)
1. the electronic air throttle body of a diesel engine, it is characterized in that, it comprises body, the printed circuit board (PCB) of control circuit, throttle blade, limiting stopper, bearing, throttle plate pin, magnet assemblies, socket, reseting gear, direct current generator, Returnning spring and throttle position sensor assembly, the printed circuit board (PCB) of control circuit and socket welding, throttle plate pin, magnet assemblies and reseting gear are formed the reseting gear assembly, the reseting gear assembly is connected with bearing, throttle blade is inserted in the throttle plate pin, direct current generator is welded on the socket, Returnning spring is between reseting gear assembly and throttle position sensor assembly, the throttle position sensor assembly is fixed on the body, and limiting stopper is between body and bearing.
2. the electronic air throttle body of diesel engine as claimed in claim 1 is characterized in that, of described Returnning spring turns round in the groove that arm is suspended to reseting gear, and another is turned round in the preformed groove that arm is suspended to the throttle position sensor assembly.
3. the electronic air throttle body of diesel engine as claimed in claim 1, it is characterized in that, described socket comprises the first copper coin winding displacement inserts and the second copper coin winding displacement inserts, the printed circuit board (PCB) welding of the first copper coin winding displacement inserts and control circuit, the second copper coin winding displacement inserts welding of direct current generator and socket.
4. the electronic air throttle body of diesel engine as claimed in claim 1 is characterized in that, described throttle plate pin, magnet assemblies and reseting gear are injection molded into an integral body.
5. the electronic air throttle body of diesel engine as claimed in claim 1 is characterized in that, described throttle position sensor assembly comprises capping, sensor chip and protective housing, and sensor chip seals in protective housing and by capping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101047806A CN102128090A (en) | 2010-01-19 | 2010-01-19 | Electronic throttle valve body for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101047806A CN102128090A (en) | 2010-01-19 | 2010-01-19 | Electronic throttle valve body for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102128090A true CN102128090A (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101047806A Pending CN102128090A (en) | 2010-01-19 | 2010-01-19 | Electronic throttle valve body for diesel engine |
Country Status (1)
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|---|---|
| CN (1) | CN102128090A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562325A (en) * | 2011-11-21 | 2012-07-11 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
| CN103032212A (en) * | 2011-08-23 | 2013-04-10 | 法雷奥电机控制系统公司 | Three-way valve with top end-stop on the air pathway |
| CN104121098A (en) * | 2014-07-16 | 2014-10-29 | 重庆渝辉机械有限公司 | Electronic throttle valve of engine |
| 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 |
| CN104121098B (en) * | 2014-07-16 | 2017-01-04 | 重庆渝辉机械有限公司 | Electronic throttle of engine |
| CN106659037A (en) * | 2016-11-03 | 2017-05-10 | 昆山隆中麦士格瑞汽车部件有限公司 | Control circuit board mounting structure of electronic throttle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5297522A (en) * | 1990-04-06 | 1994-03-29 | Audi Ag | Throttle valve |
| CN1710267A (en) * | 2005-07-05 | 2005-12-21 | 四川红光汽车机电有限公司 | Electronic throttle body |
| CN101520004A (en) * | 2009-04-01 | 2009-09-02 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
| CN101568711A (en) * | 2006-11-13 | 2009-10-28 | 华立性能产品公司 | Air valve and method of use |
| CN201696148U (en) * | 2010-01-19 | 2011-01-05 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
-
2010
- 2010-01-19 CN CN2010101047806A patent/CN102128090A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5297522A (en) * | 1990-04-06 | 1994-03-29 | Audi Ag | Throttle valve |
| CN1710267A (en) * | 2005-07-05 | 2005-12-21 | 四川红光汽车机电有限公司 | Electronic throttle body |
| CN101568711A (en) * | 2006-11-13 | 2009-10-28 | 华立性能产品公司 | Air valve and method of use |
| CN101520004A (en) * | 2009-04-01 | 2009-09-02 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
| CN201696148U (en) * | 2010-01-19 | 2011-01-05 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032212A (en) * | 2011-08-23 | 2013-04-10 | 法雷奥电机控制系统公司 | Three-way valve with top end-stop on the air pathway |
| CN103032212B (en) * | 2011-08-23 | 2016-08-17 | 法雷奥电机控制系统公司 | Air duct has three-way valve and the method for testing thereof of top ends stop part |
| CN102562325A (en) * | 2011-11-21 | 2012-07-11 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
| CN102562325B (en) * | 2011-11-21 | 2016-07-20 | 上海奥众汽车部件制造有限公司 | The electronic air throttle body of diesel engine |
| CN104121098A (en) * | 2014-07-16 | 2014-10-29 | 重庆渝辉机械有限公司 | Electronic throttle valve of engine |
| CN104121098B (en) * | 2014-07-16 | 2017-01-04 | 重庆渝辉机械有限公司 | Electronic throttle of engine |
| 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 |
| CN106659037A (en) * | 2016-11-03 | 2017-05-10 | 昆山隆中麦士格瑞汽车部件有限公司 | Control circuit board mounting structure of electronic throttle |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110720 |