CN1548708A - Electronic air throttling flap body - Google Patents
Electronic air throttling flap body Download PDFInfo
- Publication number
- CN1548708A CN1548708A CNA031306349A CN03130634A CN1548708A CN 1548708 A CN1548708 A CN 1548708A CN A031306349 A CNA031306349 A CN A031306349A CN 03130634 A CN03130634 A CN 03130634A CN 1548708 A CN1548708 A CN 1548708A
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- China
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- plate pin
- throttle plate
- electronic air
- fixed
- motor shaft
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The electronic throttle gate includes valve plate, shaft, casing and gas channel, and the valve plate is fixed to the shaft capable of rotating inside the gas channel. One stepped motor drives the shaft of the electronic throttle gate to rotate, and one rotation position indicator includes at least one triggering signal generator or one rotation position blocking mechanism. The present invention has raised throttle gate shaft position controlling precision, long service life, low cost, open-looped control of shaft position and less control time of the electric control unit.
Description
Technical field
The present invention relates to the electronic air throttle body technical field that is applied to the internal-combustion engine intelligent management system, especially the electronic air throttle body technical field of petrol engine intelligent management system.
Background technique
Applying electronic throttle body on the electric control gasoline engine, can make automobile possess functions such as constant-speed traveling, preventing skid on snow, the Bora car of Changchun company of FAW-Volkswagen production at present, used the electronic air throttle body of German BOSCH company, its structure and principle are: electronic air throttle body inside is an air flue, a closure valve block is arranged in the air flue, be fixed on the throttle plate pin, throttle plate pin can drive the closure valve block and rotate in air flue, thereby change the aperture of closure valve block, realize the purpose of control air input of engine by air.Throttle plate pin has been installed a Returnning spring, make this act on the reseting torque of a close the throttle direction, a direct current department clothes motor is arranged, give throttle plate pin transmitting control moment through gear, when the suffered control moment of throttle plate pin equated with reseting torque, the fixed-site of throttle plate pin was motionless.One end of throttle plate pin is being fixed the rotational position sensor of a contact-type, and the rotational position of feedback throttle plate pin is realized closed loop control.U.S. Pat-6067961 discloses another kind of electronic air throttle body, and with the difference of above-mentioned design be: the rotatingshaft of throttle plate pin and rotational position final controlling element is a same axis, has omitted gear transmission.The general character of these two kinds of designs is all to use the angle displacement of the analog electric signal feedback throttle plate pin of rotational position sensor output, and the throttle plate pin angle adopts closed loop control.Its shortcoming is: rotational position sensor is contact-type mostly, can influence the precision of output analogue signal because of the wearing and tearing of resistive film after the use repeatedly, and then influence the control accuracy of throttle plate pin rotational position and the working life of electronic air throttle body; Because the angle of throttle plate pin adopts close-loop feedback control, the control time that takies ECU (Electrical Control Unit) in control procedure is more; The cost of rotational position sensor is higher.
The objective of the invention is to propose design new departure of a kind of electronic air throttle body, it can improve the control accuracy of throttle plate pin angular orientation, the working life of prolongation electronic air throttle body, the present invention simultaneously is suitable for the open loop control of throttle plate pin position, the control time of ECU (Electrical Control Unit) can be saved, whole cost can also be saved.
Summary of the invention
To achieve these goals, electronic air throttle body of the present invention comprises closure valve block, throttle plate pin, shell and air flue, and the closure valve block is fixed on the throttle plate pin, and can rotate in air flue.One stepper motor is arranged, on a motor shaft is arranged, throttle plate pin is driven by motor shaft and does and follow rotation synchronously.Also comprise a throttle plate pin rotational position calibrating device, this calibrating device comprises a cover trigger signal generator or a cover throttle plate pin rotational position countercheck mechanism at least.This device can send the light or the electrical signal of sudden change when throttle plate pin goes to certain tilt fixing, perhaps can when throttle plate pin goes to certain tilt fixing, be subjected to rigidity and stop, perhaps can when throttle plate pin goes to certain tilt fixing, be subjected to sending when rigidity stops the light or the electrical signal of sudden change.
Throttle plate pin rotational position calibrating device has 3 specific embodiments.Scheme 1: described throttle plate pin position label means is a cover trigger signal generator, and when throttle plate pin forwarded some or a plurality of fixing known angle to, this device produced the light or the electrical signal of sudden change; Scheme 2: described throttle plate pin position label means is a cover throttle plate pin rotational position countercheck mechanism, and when throttle plate pin forwarded the minimum aperture of closure valve block or maximum opening to, this mechanism stoped throttle plate pin to be rotated further; Scheme 3: be the combination of above-mentioned two schemes, the throttle plate pin position label means has comprised a cover trigger signal generator and a cover throttle plate pin rotational position countercheck mechanism simultaneously.
The present invention can also comprise a closure valve block Returnning spring.This Returnning spring provides a moment of impelling described closure valve block to close in all slewing areas of throttle plate pin, when stepper motor cut off the power supply, this moment can make the closure valve block reset to minimum aperture smoothly.
Compare with rotational position sensor, the rotational position calibrating device only needs limited angle of throttle plate pin demarcated, the control accuracy of the rotational position of throttle plate pin guarantees by the Stepping Motor Control precision, avoid the problem of dtmf distortion DTMF of sensor die analog signal, therefore improved the control accuracy and the bulk life time of electronic air throttle body.Compare with the close-loop control mode that utilizes the rotational position sensor analogue signal, the present invention is fit to adopt open loop control mode, therefore can save the control time of ECU (Electrical Control Unit).And the cost of rotational position calibrating device is lower.
Description of drawings
The present invention will be further described in detail with reference to the accompanying drawings below.
Fig. 1 is the electronic air throttle body transverse sectional view of a specific embodiment.
Fig. 2 is the partial sectional view of the A-A direction of Fig. 1.
Fig. 3 is the electronic air throttle body partial sectional view of the another kind of mode of execution of throttle plate pin rotational position countercheck mechanism.
Fig. 4 is the electronic air throttle body partial sectional view of the 1st kind of mode of execution of trigger signal generator.
Fig. 5 is the electronic air throttle body partial sectional view of the 2nd kind of mode of execution of trigger signal generator.
Fig. 6 is the electronic air throttle body partial sectional view of the 3rd kind of mode of execution of trigger signal generator.
Embodiment
Fig. 1, shown in Figure 2 be a specific embodiment of an electronic air throttle body, comprise closure valve block 7, throttle plate pin 8, shell 4 and air flue 6, closure valve block 7 is fixed on the throttle plate pin 8, and can rotate in air flue, is used to change the aperture of closure valve block.The airintake direction of 15 electronic air throttle bodies that refer to.One stepper motor 9 is arranged, on a motor shaft 10 is arranged, throttle plate pin 8 and motor shaft 10 are one.This embodiment's closure rotational position calibrating device is a cover rotational position countercheck mechanism, this mechanism comprises is fixed in the swing arm 14 on the throttle plate pin 8 and is fixed in a block 12 on the shell 4, the protrusion height of this block is adjustable, is made up of the screw support 13, adjustment screw 2 and the locking nut 1 that are fixed on the shell 4.Hang between the pin 11 in swing arm 14 and the spring that is fixed on the shell 4, one valve block Returnning spring 3 is arranged, this spring makes throttle plate pin 8 act on a reseting torque that impels the closure valve block to close by swing arm 14, when stepper motor 9 outages, this spring makes closure valve block 7 reset to minimum aperture position.A plurality of mounting holes 5 are arranged on shell 4, be used for electronic air throttle body is installed in engine air inlet tube.When swing arm 14 contacts with block 12 pairing throttle plate pin angle of swing be fix and also be known, therefore a known start angle is provided can for stepper motor 9, play the effect that the closure rotational position is demarcated.Swing arm 14 also can be fixed on the motor shaft 10.
Shown in Figure 3 is the another kind of mode of execution of throttle plate pin rotational position countercheck mechanism, is made up of the convex plane 16 and the closure valve block 7 that are arranged in air flue 6, and convex plane 16 is positioned at and stops on the pin 17, stops that pin 17 is fixed on the shell 4.When closure valve block 7 rotated to minimum aperture, closure valve block 7 was subjected to stopping of projection plane, can't continue rotation.Convex plane 16 also can be designed to other form, such as the inwall of this plane and air flue 6 is made one.
Electronic air throttle body shown in Figure 4, its rotational position calibrating device are cover trigger signal generators.This trigger signal generator comprises and is fixed on the eccentric projection of being made by ferromagnetic substance 20 on the throttle plate pin 8 and is fixed on magnetic induction part 19 on the shell 4.In throttle plate pin 8 rotary courses, when eccentric projection 20 was toward or away from magnetic induction part 19, this magnetic induction part can send the electrical signal of sudden change, from the direction output of 18 indications.The angle of swing of trigger signal pairing throttle plate pin of when sudden change be fix and also be known, therefore play the effect that the throttle plate pin rotational position is demarcated.Eccentric projection 20 also can be installed on the motor shaft 10.
Shown in Figure 5 is the 2nd kind of mode of execution of trigger signal generator.This trigger signal generator comprises and is fixed on the eccentric shading sheet 22 on the throttle plate pin 8 and is fixed on photoelectric sensor 21 on the shell 4.In throttle plate pin 8 rotary courses, when eccentric shading sheet 22 blocked or withdraw light path in the photoelectric sensor 21, this photoelectric sensor can send the electrical signal of sudden change, and this signal is from the direction output of 18 indications.Since the angle of swing of trigger signal pairing throttle plate pin of when sudden change be fix and also be known, therefore play the effect that the throttle plate pin rotational position is demarcated.Eccentric shading sheet 22 also can be fixed on the motor shaft 10.Photoelectric sensor 21 also can be replaced by optical fiber transducer, and this moment, the trigger signal of output was an optical signal.
Shown in Figure 6 is the 3rd kind of mode of execution of trigger signal generator.This trigger signal generator comprises one eccentric the installation and and the movable contact 28 that conducts of shell 4 and being fixed on the shell 4 also and the stationary contact 27 of shell 4 electrical insulations on the throttle plate pin 8.The protrusion height of stationary contact 27 is adjustable, stationary contact 27 is positioned at the lower end of electrode 24, electrode 24 is fixed on the contact by electric insulation layer 25 and adjusts in the screw 26, the contact is adjusted screw 26 and is fixed on the screw support 13 by screw thread, screw support 13 is fixed on the shell 4, and locking nut 1 is used to lock the contact and adjusts screw 26.Movable contact 28 is by shell 4 ground connection, stationary contact 27 through electrode 24 with draw electric wire 23 and communicate, drawing electric wire 23 links to each other with pull-up resistor in the ECU (Electrical Control Unit), therefore drawing electric wire 23 at ordinary times is output as high level, when closure valve block 7 rotates to minimum aperture, stationary contact 27 contacts and ground connection with movable contact 28, draws electric wire 23 output low levels, sends the sudden change electrical signal.The contact position of stationary contact and movable contact can also be arranged on the maximum opening position of closure, also can adopt two cover stationary contact and movable contacts, rotates to minimum aperture and maximum opening position at closure, can both produce the electrical signal of sudden change.
In the above embodiments or embodiment, the shaft axis of throttle plate pin 8 spatially overlaps with the shaft axis of motor shaft 10, and both are one.Also throttle plate pin 8 and motor shaft 10 can be designed to discrete part, the centre connects by shaft joint.The shaft axis of throttle plate pin 8 spatially can not overlap with the shaft axis of motor shaft 10 yet, connects by gear, toothed belt or other present known driving mechanisms between the diaxon.
In the above embodiments or embodiment, Returnning spring 3 is dispensable, and the mounting point of Returnning spring 3 can be contained near the throttle plate pin 8 as shown in Figure 1, and spring force acts on the throttle plate pin 8; Also can be contained near the motor shaft 10, spring force acts on the motor shaft 10; Spring can also be installed on the driving mechanism between throttle plate pin 8 and the motor shaft 10.When not having Returnning spring 3, the homing action of throttle plate pin 8 drives by stepper motor 9 and produces.
Electronic air throttle body of the present invention, throttle plate pin rotational position calibrating device wherein also can comprise a cover trigger signal generator and a rotational position countercheck mechanism simultaneously.As one of them special case, the stationary contact 27 in the scheme shown in Figure 6 can play the function of block 12 simultaneously, and movable contact 28 can play the function of swing arm 14 simultaneously, therefore has the function of rotational position countercheck mechanism concurrently.
Claims (9)
1. electronic air throttle body, comprise closure valve block (7), throttle plate pin (8), shell (4) and air flue (6), the closure valve block is fixed on the throttle plate pin, and can in air flue, rotate, it is characterized in that: a stepper motor (9) is arranged, on a motor shaft (10) is arranged, throttle plate pin (8) is subjected to motor shaft (10) to drive and do and follows rotation synchronously, also comprise a throttle plate pin rotational position calibrating device, this calibrating device comprises a cover trigger signal generator or a cover rotational position countercheck mechanism at least.
2. electronic air throttle body according to claim 1 is characterized in that: described rotational position countercheck mechanism comprises and is fixed in the swing arm (14) on throttle plate pin (8) or the motor shaft (10) and is fixed in block (12) on the described shell (4).
3. electronic air throttle body according to claim 1 is characterized in that: described rotational position countercheck mechanism, form by a convex plane (16) that is arranged in described air flue (6) and described closure valve block (7).
4. electronic air throttle body according to claim 1, it is characterized in that: described trigger signal generator comprises and is fixed on the eccentric projection of being made by ferromagnetic substance (20) on throttle plate pin (8) or the motor shaft (10) and is fixed on magnetic induction part (19) on the described shell (4).
5. electronic air throttle body according to claim 1, it is characterized in that: described trigger signal generator comprises and is fixed on the eccentric shading sheet (22) on throttle plate pin (8) or the motor shaft (10) and is fixed on photoelectric sensor (21) or optical fiber transducer on the described shell (4).
6. electronic air throttle body according to claim 1, it is characterized in that: described trigger signal generator comprises that one is gone up eccentric the installation and and the movable contact (28) that conducts of shell (4) and be fixed on described shell (4) and go up also and the stationary contact (27) of shell electrical insulation at throttle plate pin (8) or motor shaft (10).
7. electronic air throttle body according to claim 1, it is characterized in that: the shaft axis of described throttle plate pin (8) spatially overlaps with the shaft axis of described motor shaft (10), described throttle plate pin (8) and described motor shaft (10) be one or be connected by a coupling.
8. electronic air throttle body according to claim 1 is characterized in that: described throttle plate pin (8) is connected by a driving mechanism with described motor shaft (10).
9. electronic air throttle body according to claim 1 is characterized in that: also comprise a closure valve block Returnning spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031306349A CN1548708A (en) | 2003-05-06 | 2003-05-06 | Electronic air throttling flap body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031306349A CN1548708A (en) | 2003-05-06 | 2003-05-06 | Electronic air throttling flap body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1548708A true CN1548708A (en) | 2004-11-24 |
Family
ID=34322629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031306349A Pending CN1548708A (en) | 2003-05-06 | 2003-05-06 | Electronic air throttling flap body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1548708A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470029C (en) * | 2005-10-28 | 2009-03-18 | 比亚迪股份有限公司 | Device and method for deciding air throttle opening degree |
| CN101440749B (en) * | 2008-09-25 | 2010-04-21 | 无锡隆盛科技有限公司 | Electric air throttle |
| CN102966440A (en) * | 2011-08-31 | 2013-03-13 | 宁波高发汽车控制系统股份有限公司 | Electronic throttle |
| CN104775917A (en) * | 2015-04-25 | 2015-07-15 | 无锡隆盛科技股份有限公司 | Magnetic-resistance electronic throttle valve |
| CN104819832A (en) * | 2015-04-24 | 2015-08-05 | 无锡隆盛科技股份有限公司 | Open-loop throttle valve response time detection method |
| CN108150297A (en) * | 2018-02-09 | 2018-06-12 | 辽宁壮龙无人机科技有限公司 | Aircraft and its air throttle |
| CN109356749A (en) * | 2018-11-20 | 2019-02-19 | 西安航天动力技术研究所 | A kind of solid propellant rocket change propulsive signal feedback system |
-
2003
- 2003-05-06 CN CNA031306349A patent/CN1548708A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470029C (en) * | 2005-10-28 | 2009-03-18 | 比亚迪股份有限公司 | Device and method for deciding air throttle opening degree |
| CN101440749B (en) * | 2008-09-25 | 2010-04-21 | 无锡隆盛科技有限公司 | Electric air throttle |
| CN102966440A (en) * | 2011-08-31 | 2013-03-13 | 宁波高发汽车控制系统股份有限公司 | Electronic throttle |
| CN104819832A (en) * | 2015-04-24 | 2015-08-05 | 无锡隆盛科技股份有限公司 | Open-loop throttle valve response time detection method |
| CN104819832B (en) * | 2015-04-24 | 2017-07-28 | 无锡隆盛科技股份有限公司 | The detection method of open loop air throttle response time |
| CN104775917A (en) * | 2015-04-25 | 2015-07-15 | 无锡隆盛科技股份有限公司 | Magnetic-resistance electronic throttle valve |
| CN108150297A (en) * | 2018-02-09 | 2018-06-12 | 辽宁壮龙无人机科技有限公司 | Aircraft and its air throttle |
| CN109356749A (en) * | 2018-11-20 | 2019-02-19 | 西安航天动力技术研究所 | A kind of solid propellant rocket change propulsive signal feedback system |
| CN109356749B (en) * | 2018-11-20 | 2020-08-25 | 西安航天动力技术研究所 | Variable thrust signal feedback system of solid rocket engine |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |