CN114738124B - Electronic throttle valve and control method thereof - Google Patents
Electronic throttle valve and control method thereof Download PDFInfo
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- CN114738124B CN114738124B CN202210388308.2A CN202210388308A CN114738124B CN 114738124 B CN114738124 B CN 114738124B CN 202210388308 A CN202210388308 A CN 202210388308A CN 114738124 B CN114738124 B CN 114738124B
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- telescopic
- induction signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/107—Manufacturing or mounting details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The application discloses electronic throttle valve and control method thereof, it includes sector gear, the mounting groove, the inserted block, adjusting bolt, the mount table, flexible slider, the arc bracket, the arc slide, the bolt, reset slider, reset spring and jack, use above-mentioned technical scheme, when in actual use, aim at the mounting groove with the inserted block of sector gear bottom, the inserted block inserts the mounting groove when pressing sector gear, rotate adjusting bolt, flexible slider slides to keeping away from the mount table direction in flexible groove, arc bracket and arc slide move along with flexible slider together, the arc slide is earlier with bolt tip butt, along with adjusting bolt continues to rotate, bolt and spacing slider move to the mounting groove direction, reset spring pressurized shortens the storage elastic potential energy, until the bolt tip inserts in the jack, arc slide one side and mount table outer wall butt, be convenient for sector gear's dismouting and firm in connection stable, the technology degree of difficulty has been reduced, manufacturing cost and the assembly degree of difficulty.
Description
Technical Field
The invention relates to an electronic throttle valve and a control method thereof.
Background
With the implementation of the emission regulations of the fifth and sixth countries of the diesel engine, accurate control of the air intake of the engine is required. Therefore, an electronic throttle valve is required to be added in an air intake system, and the main functions of the throttle valve comprise optimizing combustion efficiency and reducing emission pollution by adjusting air intake pressure difference; on the other hand, when the engine is flamed out, the vibration is reduced by blocking air inlet, and the driving comfort is improved. The stability and accuracy of the electronic throttle valve control are the key for controlling the fresh air quantity of the engine combustion, so that the stable and accurate rotating speed and power control of the engine is guaranteed. Therefore, the accuracy of engine control is directly influenced due to the fact that the opening of the valve plate is inaccurate caused by serious carbon deposition or damage of the electronic throttle valve;
the connection of the sector gear of the gear transmission mechanism and the rotating shaft adopts a laser welding process, the laser welding mode has high cost and complex process, the requirements on the assembly precision of workpieces and the positions of weldments are high, and the stability of the welding process and the reliability of the welding result are difficult to ensure, so that improvement is needed.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art.
The application provides an electronic throttle, including casing, air flue, transmission chamber, cap, valve plate, pivot and motor, still include:
the gear transmission mechanism comprises a transmission gear and a sector gear which are meshed with each other;
the resetting mechanism is arranged in the transmission cavity and connected with the rotating shaft for resetting the valve plate;
the quick release mechanism is used for detachably connecting the sector gear and the rotating shaft;
wherein, drive gear passes through the motor drive rotation, and pivot one end is connected with the valve plate, and the other end is connected with sector gear.
Quick detach mechanism includes:
the mounting table is rotatably mounted in the transmission cavity and is fixedly connected with the top end of the rotating shaft;
the inner side wall of the mounting groove consists of an arc-shaped surface and a limiting surface;
the inserting block is arranged at the bottom of the sector gear, and the cross section of the inserting block is matched with the mounting groove in shape;
wherein, the mounting groove sets up and supplies the inserted block to peg graft at the mount table top, and the both ends and the restriction face both ends of arcwall face are connected.
The quick detach mechanism still includes:
the insertion hole is arranged on the side wall of the insertion block facing the limiting surface;
the bolt is movably inserted into the jack after penetrating through the side wall of the mounting table.
The reset groove is arranged on the side wall of the mounting table;
the reset sliding block is arranged on the outer wall of the bolt and is arranged in the reset groove in a sliding manner;
the first reset spring is installed between the bottom of the reset groove and the reset sliding block;
and the anti-falling mechanism is used for applying pressure to the bolt to enable the end part of the bolt to tightly abut against the jack.
The anti-drop mechanism includes:
the telescopic groove is arranged on one side of the inner wall of the transmission cavity, which is opposite to the limiting surface;
the telescopic block is movably arranged in the telescopic groove along the transverse direction;
one end of the adjusting bolt movably penetrates through the side wall of the shell and then is movably connected with the telescopic block;
wherein, the one end that flexible piece stretches out flexible groove is arc and mount table outer wall adaptation.
The expansion block includes:
the telescopic sliding block is movably arranged in the telescopic groove;
the arc-shaped bracket is arranged at the end part of the telescopic sliding block extending out of the telescopic groove;
the arc-shaped sliding plate is movably arranged on the arc-shaped bracket and rotates along with the mounting table;
wherein, arc bracket and arc slide all are the arc and set up with the pivot is concentric.
The expansion block further comprises:
the clamping groove is arranged at the end part of the bolt far away from the jack;
and the clamping block is arranged on the arc-shaped sliding plate and is in clamping fit with the clamping groove.
The expansion block further comprises:
the limiting groove is arranged on the side wall of the arc-shaped bracket facing the arc-shaped sliding plate and is in a T shape;
the limiting sliding block is slidably arranged in the limiting groove and is fixedly connected with the arc-shaped sliding plate;
wherein, the spacing groove is arc and concentric with the rotating shaft.
Further comprising:
a controller;
the motor driving module is electrically connected with the motor;
the current sampling unit is used for detecting the current magnitude of the input motor and feeding the current magnitude back to the controller;
the position sensor is arranged on the top of the sector gear;
the induction magnet is arranged on the inner wall of the shell cover and corresponds to the position sensor;
the motor driving module, the current sampling unit, the position sensor and the motor are all electrically connected with the controller.
The resetting mechanism comprises:
the plurality of lugs are distributed on the inner wall of the transmission cavity along the circumferential direction;
the support plates are distributed on the outer wall of the mounting table along the circumferential direction and are arranged in a staggered manner with the lugs;
the arc rods are respectively arranged on the same side of each support plate and are concentric with the rotating shaft;
the arc holes are respectively arranged on the convex blocks for the arc rods to movably penetrate;
and the second reset springs are respectively sleeved outside the arc rods, and two ends of the second reset springs are respectively abutted against opposite side walls of the adjacent support plate and the lug.
Meanwhile, the control method of the electronic throttle valve is disclosed, and comprises the following steps:
s1, establishing a database in a processor to record a stepping force sensing signal output when an accelerator is stepped on and an output signal of a position sensor and a flow sampling unit;
s2, outputting a treading force induction signal to a processor when an accelerator is treaded, sending an electric signal to a motor driving module by the processor, electrifying and operating a motor, changing the opening degree of a valve plate, outputting a valve plate opening degree induction signal to the processor through the magnetic field change between a position sensor and an induction magnet, inputting the current quantity of the motor by a current sampling unit, outputting a current magnitude induction signal to the processor, comparing whether the current magnitude induction signal is overlapped with data in a database by the processor, if so, entering a step S3, and if not, entering a step S4;
s3, comparing a valve plate opening sensing signal which is simultaneously output from the position sensor with a current trampling force sensing signal by the processor with a valve plate opening sensing signal corresponding to the current trampling force sensing signal in the database, if the value of the current valve plate opening sensing signal is greater than that of the valve plate opening sensing signal in the database, calculating a difference value when the processor receives the same trampling force sensing signal next time, reducing the current output to the motor by the motor driving module when receiving the same trampling force sensing signal again, if the value of the current valve plate opening sensing signal is less than that of the valve plate opening sensing signal in the database, calculating the difference value when the processor receives the same trampling force sensing signal next time, increasing the current output to the motor by the motor driving module when receiving the same trampling force sensing signal again, and returning to the step S2;
and S4, recording the current treading force sensing signal and the valve plate opening sensing signal which are opposite to the current treading force sensing signal in a database, and returning to the step S2.
The invention has the following main beneficial effects:
1. when the sector gear is pressed, the inserting block is inserted into the mounting groove, the adjusting bolt is rotated, the telescopic sliding block slides in the telescopic groove in the direction away from the mounting table, the arc-shaped bracket and the arc-shaped sliding plate move together with the telescopic sliding block, the arc-shaped sliding plate is firstly abutted to the end part of the bolt, the bolt and the limiting sliding block move in the direction of the mounting groove along with the continuous rotation of the adjusting bolt, the elastic potential energy is stored by the aid of the compression of the reset spring until the end part of the bolt is inserted into the inserting hole, one side of the arc-shaped sliding plate is abutted to the outer wall of the mounting table, and the sector gear is convenient to disassemble and assemble and has high reliability;
2. through spacing groove and limiting slide's setting, make the arc slide rotate along with the mount table when the mount table rotates and with arc bracket swing joint to can not break away from the swing joint with arc bracket, can still can stably exert pressure to the bolt when the mount table rotates, avoid the bolt pine to take off, improve the fastness of sector gear installation.
Drawings
FIG. 1 is a schematic view of an overall structure of an electronic throttle valve according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a reset mechanism in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a quick release mechanism according to an embodiment of the present application;
FIG. 4 is an enlarged view of a portion A of FIG. 1;
fig. 5 is a circuit diagram in an embodiment of the present application.
Reference numerals
1-shell, 2-air passage, 3-transmission cavity, 4-shell cover, 5-valve plate, 6-rotating shaft, 7-motor, 8-transmission gear, 9-sector gear, 10-quick release mechanism, 1001-mounting table, 1002-mounting groove, 1003-insert block, 1004-jack, 1005-bolt, 1006-reset groove, 1007-reset slider, 1008-reset spring I, 11-anti-drop mechanism, 1101-telescopic groove, 1102-adjusting bolt, 12-telescopic block, 1201-telescopic slider, 1202-arc bracket, 1203-arc sliding plate, 1204-clamp groove, 1205-clamp block, 1206-limit groove, 1207-limit slider, 13-position sensor, 14-induction magnet, 15-convex block, 16-support plate, 17-arc rod, 18-arc hole and 19-reset spring II.
Detailed Description
The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
As shown in fig. 1 to 4, the present application provides an electronic throttle valve, which comprises a housing 1, an air passage 2, a transmission cavity 3, a housing cover 4, a valve plate 5, a rotating shaft 6 and a motor 7, and further comprises a gear transmission mechanism, which comprises a transmission gear 8 and a sector gear 9 which are meshed with each other; the resetting mechanism is arranged in the transmission cavity 3 and connected with the rotating shaft 6 for resetting the valve plate 5; and the quick release mechanism 10 is used for detachably connecting the sector gear 9 with the rotating shaft 6, the transmission gear 8 is driven to rotate by the motor 7, one end of the rotating shaft 6 is connected with the valve plate 5, and the other end of the rotating shaft is connected with the sector gear 9.
Further, the quick release mechanism 10 includes a mounting platform 1001, which is rotatably mounted in the transmission cavity 3 and is fixedly connected to the top end of the rotating shaft 6; the inner side wall of the mounting groove 1002 consists of an arc-shaped surface and a limiting surface; the inserted block 1003, it is installed in sector gear 9 bottom and cross sectional shape and mounting groove 1002 adaptation, and the mounting groove 1002 sets up and supplies the inserted block 1003 to peg graft at mount table 1001 top, and the both ends and the restriction face both ends of arcwall face are connected.
Further, the quick release mechanism 10 further includes a socket 1004 disposed on a side wall of the insert 1003 facing the limiting surface; a plug 1005 inserted into the insertion hole 1004 after being movably inserted through a sidewall of the mount 1001; a reset groove 1006 provided on a side wall of the mount 1001; a reset slider 1007 which is mounted on the outer wall of the plug 1005 and is slidably mounted in the reset groove 1006; the first return spring 1008 is installed between the groove bottom of the return groove 1006 and the return sliding block 1007; and a retaining mechanism 11 for pressing the plug 1005 so that the end thereof abuts against the insertion hole 1004.
Further, the anti-dropping mechanism 11 includes a telescopic slot 1101, which is arranged on the side of the inner wall of the transmission cavity 3 opposite to the limiting surface; a telescopic block 12 movably installed in the telescopic slot 1101 in a transverse direction; one end of the adjusting bolt 1102 is movably inserted through the side wall of the housing 1 and then movably connected with the telescopic block 12, and the end of the telescopic block 12 extending out of the telescopic groove 1101 is arc-shaped and is matched with the outer wall of the mounting platform 1001.
Further, the telescopic block 12 comprises a telescopic sliding block 1201 movably mounted in the telescopic slot 1101; an arc bracket 1202 installed at an end portion of the telescopic slider 1201 extending out of the telescopic slot 1101; and the arc-shaped sliding plate 1203 is movably arranged on the arc-shaped bracket 1202 and rotates along with the mounting table 1001, and the arc-shaped bracket 1202 and the arc-shaped sliding plate 1203 are both arc-shaped and are arranged concentrically with the rotating shaft 6.
Further, the telescopic block 12 further comprises a clamping groove 1204, which is arranged at the end of the plug 1005 far away from the insertion hole 1004; and a clamping block 1205 which is arranged on the arc-shaped sliding plate 1203 and is in clamping fit with the clamping groove 1204.
Further, the telescopic block 12 further includes a limiting groove 1206, which is disposed on a side wall of the arc bracket 1202 facing the arc sliding plate 1203 and is T-shaped; and a limiting sliding block 1207 which is slidably mounted in the limiting groove 1206 and is fixedly connected with the arc-shaped sliding plate 1203, wherein the limiting groove 1206 is arc-shaped and is concentric with the rotating shaft 6.
Further, the device also comprises a controller; a motor driving module electrically connected to the motor 7; a current sampling unit for detecting the current magnitude of the input motor 7 and feeding back to the controller; a position sensor 13 mounted on top of the sector gear 9; and the induction magnet 14 is arranged on the inner wall of the shell cover 4 and corresponds to the position sensor 13, and the motor driving module, the current sampling unit, the position sensor 13 and the motor 7 are electrically connected with the controller.
Furthermore, the resetting mechanism comprises a plurality of lugs 15 which are distributed on the inner wall of the transmission cavity 3 along the circumferential direction; a plurality of support plates 16 distributed on the outer wall of the mounting table 1001 along the circumferential direction and arranged in a staggered manner with the bumps 15; a plurality of arc rods 17 which are respectively arranged on the same side of each support plate 16 and are concentric with the rotating shaft 6; a plurality of arc holes 18 which are respectively arranged on the convex blocks 15 for the movable penetration of the arc rods 17; and a plurality of second return springs 19 which are respectively sleeved outside the arc rods 17, and two ends of each second return spring are respectively abutted with opposite side walls of the adjacent support plate 16 and the lug 15.
As shown in fig. 1-4, in the preferred embodiment of the present invention, due to the above structure, during installation, the adjusting bolt 1102 is rotated, the telescopic slider 1201 slides in the telescopic slot 1101 in a direction away from the mounting table 1001, the arc bracket 1202 and the arc sliding plate 1203 move together with the telescopic slider 1201, the arc sliding plate 1203 is separated from contact with the side wall of the mounting table 1001, the restoring spring 1008 loses pressure and releases elastic potential energy to generate kinetic energy to push the restoring slider 1007 and the plug pin 1005 to move away from the mounting groove 1002 until the end of the plug pin 1005 is separated from the mounting groove 1002, the inserting block 1003 at the bottom of the sector gear 9 is aligned with the mounting groove 1002, the inserting block 1003 is inserted into the mounting groove 1002 when the sector gear 9 is pressed, the adjusting bolt 1102 is rotated, the telescopic sliding block 1201 slides in the telescopic groove 1101 towards the direction far away from the mounting table 1001, the arc-shaped bracket 1202 and the arc-shaped sliding plate 1203 move together along with the telescopic sliding block 1201, the arc-shaped sliding plate 1203 is abutted to the end of the bolt 1005 firstly, the bolt 1005 and the limiting sliding block 1207 move towards the mounting groove 1002 along with the continuous rotation of the adjusting bolt 1102, the first reset spring 1008 is pressed to shorten the stored elastic potential energy until the end of the bolt 1005 is inserted into the jack 1004, one side of the arc-shaped sliding plate 1203 is abutted to the outer wall of the mounting table 1001, the shell cover 4 is mounted on the shell 1 through screws or buckles and the like, the mounting is completed, through the mode, the sector gear 9 is convenient to disassemble and firmly and stably connected, the process difficulty is reduced, the manufacturing cost and the assembling difficulty are reduced.
In the preferred embodiment of the present invention, through the arrangement of the limiting groove 1206 and the limiting slider 1207, the arc-shaped sliding plate 1203 can rotate with the mounting platform 1001 and is movably connected with the arc-shaped bracket 1202 when the mounting platform 1001 rotates, and cannot be separated from the movable connection with the arc-shaped bracket 1202, so that the pressure can still be stably applied to the latch 1005 when the mounting platform 1001 rotates, the latch 1005 is prevented from being loosened, and the firmness of mounting the sector gear 9 is improved.
In the preferred embodiment of the present invention, the arc sliding plate 1203 rotates at the same distance as the plug 1005 by the cooperation of the engaging slot 1204 and the engaging block 1205, so as to ensure that one side of the arc sliding plate 1203 keeps abutting against the end of the plug 1005, prevent the plug 1005 from being loosened, and further improve the firmness of the installation of the sector gear 9.
In the preferred embodiment of the present invention, the valve plate 5 is reset by applying a pre-tightening force to the mounting table 1001 through the cooperation of the arc rod 17, the arc hole 18, the support plate 16 and the projection 15, and the structure is simple and convenient to assemble.
Meanwhile, the control method of the electronic throttle valve is disclosed, and comprises the following steps:
s1, establishing a database in a processor to record a stepping force sensing signal output when an accelerator is stepped on and output signals of a position sensor 13 and a flow sampling unit;
s2, outputting a treading force induction signal to a processor when an accelerator is treaded, sending an electric signal to a motor driving module by the processor, electrifying and operating a motor 7, changing the opening degree of a valve plate 5, outputting a valve plate 5 opening degree induction signal to the processor through the magnetic field change between a position sensor 13 and an induction magnet 14, inputting the current quantity of the motor 7 by a current sampling unit, outputting a current magnitude induction signal to the processor, comparing whether the current magnitude induction signal is overlapped with data in a database by the processor, if so, entering a step S3, and if not, entering a step S4;
s3, the processor compares a valve plate 5 opening degree induction signal which is simultaneously output from the position sensor 13 with a current trampling force induction signal with a valve plate 5 opening degree induction signal corresponding to the current trampling force induction signal in the database, if the current valve plate 5 opening degree induction signal value is greater than the valve plate 5 opening degree induction signal in the database, the processor calculates a difference value when receiving the same trampling force induction signal next time, when receiving the same trampling force induction signal again, the motor driving module reduces the current output to the motor 7, if the current valve plate 5 opening degree induction signal value is less than the valve plate 5 opening degree induction signal in the database, the processor calculates the difference value when receiving the same trampling force induction signal next time, when receiving the same trampling force induction signal again, the motor driving module increases the current output to the motor 7, and the process returns to the step S2;
and S4, recording the current treading force sensing signal, the valve plate 5 opening degree sensing signal and the valve plate 5 opening degree sensing signal which are opposite to the current treading force sensing signal in a database, and returning to the step S2.
As shown in fig. 5, in the preferred embodiment of the present invention, due to the adoption of the above method, in the actual use process, the electronic throttle can adjust the input current of the motor 7 in time according to the actual situation, so that the opening degree of the valve plate 5 corresponds to the stepping force of the accelerator, the phenomenon of inaccurate opening degree of the valve plate 5 caused by mechanical abrasion after long-time use is avoided, and the control accuracy of the electronic throttle and the use experience of a user are improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides an electronic throttle, includes casing (1), air flue (2), transmission chamber (3), cap (4), valve plate (5), pivot (6) and motor (7), its characterized in that still includes:
the gear transmission mechanism comprises a transmission gear (8) and a sector gear (9) which are meshed with each other;
the resetting mechanism is arranged in the transmission cavity (3) and connected with the rotating shaft (6) for resetting the valve plate (5);
the quick release mechanism (10) is used for detachably connecting the sector gear (9) and the rotating shaft (6);
wherein, drive gear (8) are rotatory through motor (7) drive, pivot (6) one end with valve plate (5) are connected, and the other end is connected with sector gear (9), quick detach mechanism (10) include:
the mounting table (1001) is rotatably mounted in the transmission cavity (3) and is fixedly connected with the top end of the rotating shaft (6);
the inner side wall of the mounting groove (1002) is composed of an arc-shaped surface and a limiting surface;
the inserting block (1003) is installed at the bottom of the sector gear (9) and the cross section of the inserting block is matched with that of the installing groove (1002);
wherein, mounting groove (1002) set up mount table (1001) top supplies inserted block (1003) to peg graft, the both ends and the restriction face both ends of arcwall face are connected, quick detach mechanism (10) still include:
a socket (1004) provided on a side wall of the insert block (1003) facing the restriction surface;
a plug (1005) movably inserted into the insertion hole (1004) after passing through the side wall of the mounting table (1001),
a reset groove (1006) provided on a side wall of the mount table (1001);
a reset sliding block (1007) which is arranged on the outer wall of the bolt (1005) and is arranged in a reset groove (1006) in a sliding way;
the first return spring (1008) is installed between the groove bottom of the return groove (1006) and the return sliding block (1007);
and a retaining mechanism (11) for pressing the plug (1005) so that the end thereof abuts against the insertion hole (1004).
2. An electronic throttle valve according to claim 1, characterized in that the retaining mechanism (11) comprises:
a telescopic groove (1101) which is arranged on one side of the inner wall of the transmission cavity (3) opposite to the limiting surface;
a telescopic block (12) movably installed in the telescopic groove (1101) along the transverse direction;
one end of the adjusting bolt (1102) is movably inserted through the side wall of the shell (1) and then movably connected with the telescopic block (12);
one end of the telescopic block (12) extending out of the telescopic groove (1101) is arc-shaped and is matched with the outer wall of the mounting platform (1001).
3. An electronic throttle valve according to claim 2, characterized in that the telescopic block (12) comprises:
a telescopic slider (1201) movably mounted in the telescopic slot (1101);
an arc-shaped bracket (1202) which is arranged at the end part of the telescopic sliding block (1201) extending out of the telescopic groove (1101);
an arc-shaped sliding plate (1203) movably mounted on the arc-shaped bracket (1202) and rotating along with the mounting table (1001);
the arc-shaped bracket (1202) and the arc-shaped sliding plate (1203) are both arc-shaped and are arranged concentrically with the rotating shaft (6).
4. An electronic throttle valve according to claim 3, characterized in that the telescopic block (12) further comprises:
a card slot (1204) arranged at an end of the plug pin (1005) remote from the plug socket (1004);
and the clamping block (1205) is arranged on the arc-shaped sliding plate (1203) and is in clamping fit with the clamping groove (1204).
5. An electronic throttle valve according to claim 4, characterized in that the telescopic block (12) further comprises:
the limiting groove (1206) is arranged on the side wall, facing the arc-shaped sliding plate (1203), of the arc-shaped bracket (1202) and is T-shaped;
the limiting sliding block (1207) is slidably mounted in the limiting groove (1206) and is fixedly connected with the arc-shaped sliding plate (1203);
wherein, the limiting groove (1206) is arc-shaped and concentric with the rotating shaft (6).
6. The electronic throttle valve according to any one of claims 1 to 5, further comprising:
a controller;
the motor driving module is electrically connected with the motor (7);
the current sampling unit is used for detecting the magnitude of current input into the motor (7) and feeding the current back to the controller;
a position sensor (13) mounted on top of the sector gear (9);
the induction magnet (14) is arranged on the inner wall of the shell cover (4) and corresponds to the position sensor (13);
the motor driving module, the current sampling unit, the position sensor (13) and the motor (7) are all electrically connected with the controller.
7. An electronic throttle valve according to claim 6, characterized in that the return mechanism comprises:
the plurality of lugs (15) are distributed on the inner wall of the transmission cavity (3) along the circumferential direction;
the support plates (16) are distributed on the outer wall of the mounting table (1001) along the circumferential direction and are staggered with the lugs (15);
the arc rods (17) are respectively arranged on the same side of each support plate (16) and are concentric with the rotating shaft (6);
a plurality of arc holes (18) which are respectively arranged on the convex blocks (15) for movably penetrating the arc rods (17);
and the second return springs (19) are respectively sleeved on the outer side of each arc rod (17), and two ends of each second return spring are respectively abutted against opposite side walls of the adjacent support plate (16) and the lug (15).
8. A control method adapted to the electronic throttle valve of claim 7, characterized by comprising the steps of:
s1, establishing a database in a processor to record a stepping force sensing signal output when an accelerator is stepped on, a position sensor (13) and an output signal of a flow sampling unit;
s2, outputting a trampling force induction signal to a processor when an accelerator is trampled, sending an electric signal to a motor driving module by the processor, electrifying and operating a motor (7), changing the opening degree of a valve plate (5), outputting the opening degree induction signal of the valve plate (5) to the processor by a position sensor (13) according to the change of a magnetic field between the position sensor and an induction magnet (14), outputting a current magnitude induction signal to the processor by a current sampling unit according to the current magnitude of the motor (7), comparing whether the current magnitude induction signal is overlapped with data in a database by the processor, if so, entering a step S3, and if not, entering a step S4;
s3, the processor compares a valve plate (5) opening degree induction signal which is simultaneously output from the position sensor (13) with a current trampling force induction signal with a valve plate (5) opening degree induction signal corresponding to the current trampling force induction signal in the database, if the current valve plate (5) opening degree induction signal value is larger than the valve plate (5) opening degree induction signal in the database, the processor calculates a difference value when receiving the same trampling force induction signal next time, enables the motor driving module to reduce the current output to the motor (7) when receiving the same trampling force induction signal again, and if the current valve plate (5) opening degree induction signal value is smaller than the valve plate (5) opening degree induction signal in the database, the processor calculates the difference value when receiving the same trampling force induction signal next time, enables the motor driving module to increase the current output to the motor (7) when receiving the same trampling force induction signal again, and returns to the step S2;
and S4, recording the current treading force sensing signal, the valve plate (5) opening degree sensing signal and the valve plate (5) opening degree sensing signal which are opposite to the current treading force sensing signal in a database, and returning to the step S2.
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| CN202210388308.2A CN114738124B (en) | 2022-04-13 | 2022-04-13 | Electronic throttle valve and control method thereof |
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| CN115898658B (en) * | 2022-11-21 | 2024-03-08 | 浙江好亚电控系统有限公司 | Electronic throttle valve with flow regulating structure |
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| JP3764822B2 (en) * | 1997-10-21 | 2006-04-12 | 株式会社日立製作所 | Electronically controlled throttle device for internal combustion engine |
| JP2004044597A (en) * | 1997-10-21 | 2004-02-12 | Hitachi Ltd | Electronic-controlled throttle device for internal combustion engine |
| US6039027A (en) * | 1997-12-04 | 2000-03-21 | Unisia Jecs Corporation | Throttle valve device |
| JP3511577B2 (en) * | 1998-10-06 | 2004-03-29 | 株式会社日立製作所 | Throttle device for internal combustion engine |
| JP2003184581A (en) * | 2003-01-06 | 2003-07-03 | Hitachi Ltd | Throttle device for internal combustion engine |
| JP4289303B2 (en) * | 2004-06-30 | 2009-07-01 | 株式会社デンソー | Intake control device for internal combustion engine |
| CN101520004B (en) * | 2009-04-01 | 2010-12-08 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
| CN102207034A (en) * | 2010-03-30 | 2011-10-05 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of gasoline engine |
| JP5734166B2 (en) * | 2011-11-15 | 2015-06-10 | 愛三工業株式会社 | Throttle device |
| JP2013104390A (en) * | 2011-11-15 | 2013-05-30 | Aisan Industry Co Ltd | Throttle device |
| JP7128061B2 (en) * | 2018-08-30 | 2022-08-30 | 愛三工業株式会社 | Throttle device |
| CN208703035U (en) * | 2018-08-30 | 2019-04-05 | 安徽宏实自动化装备有限公司 | A kind of transmission shaft for semiconductor wet process equipment |
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