CN113775421A - Electric actuator and control method thereof and commercial vehicle - Google Patents
Electric actuator and control method thereof and commercial vehicle Download PDFInfo
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- CN113775421A CN113775421A CN202111025176.9A CN202111025176A CN113775421A CN 113775421 A CN113775421 A CN 113775421A CN 202111025176 A CN202111025176 A CN 202111025176A CN 113775421 A CN113775421 A CN 113775421A
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000004140 cleaning Methods 0.000 claims abstract description 53
- 230000000903 blocking effect Effects 0.000 claims description 24
- 230000000694 effects Effects 0.000 abstract description 15
- 239000007789 gas Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention provides an electric actuator, a control method thereof and a commercial vehicle. An electric actuator control method comprising: under the condition that a valve plate in the electric actuator rotates, judging whether the electric actuator is blocked or not according to the rotation state of the valve plate; under the condition that the electric actuator is blocked, the valve plate is controlled to rotate in a cleaning mode; wherein, the valve block gyration in the electric actuator specifically includes: acquiring angle information for controlling the rotation of the valve plate; analyzing the angle information to obtain whether the rotation direction of the valve plate is forward or reverse; controlling the valve plate to rotate; wherein, according to the target number of times, the valve plate is repeatedly controlled to rotate at least twice. The invention solves the problem of blockage in the commercial vehicle tail gas emission system and realizes the technical effect that the commercial vehicle tail gas emission system can realize self-cleaning blockage.
Description
Technical Field
The invention relates to the technical field of electric actuators, in particular to an electric actuator, a control method thereof and a commercial vehicle.
Background
Along with the development of the technical field of commercial vehicles, the electric actuator is also more and more widely applied to the commercial vehicles, and under the condition that environmental protection and energy conservation are more and more emphasized, the electric actuator is also applied to an exhaust gas treatment system of the commercial vehicles.
The exhaust gases of commercial vehicles often contain a large amount of lead and some particulate matter, which in the exhaust gas systems of commercial vehicles tends to cause clogging of the exhaust systems. At this moment, through the valve plate in the electric actuator, the particulate matter in the commercial vehicle exhaust emission process can be cleaned, and the blockage of the discharge system in the commercial vehicle exhaust emission process is prevented.
However, in practical applications, the existing electric actuator is generally used for controlling the opening and closing of the waste gas valve, and has no effect on the problem of blockage of the commercial vehicle exhaust system.
Disclosure of Invention
The invention solves the problem of blockage in a commercial vehicle tail gas discharge system, and achieves the technical effect that the commercial vehicle tail gas discharge system can automatically clean the blockage through the electric actuator, the control method of the electric actuator and the commercial vehicle.
In order to solve the above problems, a first object of the present invention is to provide an electric actuator control method.
A second object of the present invention is to provide an electric actuator.
A third object of the invention is to provide a commercial vehicle.
To achieve the first object of the present invention, the present invention provides an electric actuator control method, including: under the condition that a valve plate in the electric actuator rotates, judging whether the electric actuator is blocked or not according to the rotation state of the valve plate; under the condition that the electric actuator is blocked, the valve plate is controlled to rotate in a cleaning mode; wherein, the valve block gyration in the electric actuator specifically includes: acquiring angle information for controlling the rotation of the valve plate; analyzing the angle information to obtain whether the rotation direction of the valve plate is forward or reverse; when the rotation direction is positive, the valve plate is controlled to rotate to a first mechanical stop position, and the valve plate is controlled to rotate to a second mechanical stop position from the first mechanical stop position according to a first torque; when the rotation direction is reverse, the valve plate is controlled to rotate to a second mechanical stop position, and the valve plate is controlled to rotate to a first mechanical stop position from the second mechanical stop position according to a second torque; wherein, according to the target number of times, the valve plate is repeatedly controlled to rotate at least twice.
Compared with the prior art, the technical scheme has the following technical effects: the valve block of electric actuator is in a gyration state all the time, detects the gyration state of valve block in the electric actuator, according to this gyration state, just can further judge whether electric actuator blocks up through the judging module, if electric actuator blocks up, then utilize the interior valve block of control module control electric actuator to carry out clean rotation, and it dredges the jam to rotate through the valve block. In conclusion, this embodiment adopts the method that the control valve block cleaned the gyration, through this embodiment, under the condition that electric actuator blockked up, can clean electric actuator, has guaranteed that the exhaust of commercial car is unobstructed, avoids the exhaust apparatus of commercial car to block up the damage because of long-time.
Furthermore, the rotation state of the valve plate in the electric actuator can ensure that the valve plate rotates back and forth between the mechanical stopping position I and the mechanical stopping position II, can judge whether the electric actuator is blocked in a wider range, and is convenient for timely and comprehensively finding the blocking position of the electric actuator. And the valve plate in the electric actuator carries out the rotation state for multiple times according to the target times, so that the electric actuator can be ensured to be in a long-time judgment state within a certain time range, and the blockage of the electric actuator can be more timely judged and found.
In an embodiment of the present invention, determining whether the electric actuator is jammed according to a rotation state of the valve plate specifically includes: acquiring the position information of the rotation of the valve plate; analyzing the position information to obtain the position where the valve plate rotates; and judging whether the electric actuator is blocked or not according to the position where the valve plate rotates to reach.
Compared with the prior art, the technical scheme has the following technical effects: whether the electric actuator is blocked or not can be judged according to the rotation state of the valve plate. The method is simple to operate and easy to realize, the rotation state of the valve plate can be obtained more accurately and accurately, and the specific position of the blockage can be further judged.
In one example of the invention, judging whether the electric actuator is blocked specifically comprises judging that the electric actuator is blocked when the valve plate rotates forwards and cannot reach the second mechanical stop position according to the first torque according to the rotation state of the valve plate; according to the rotation state of the valve plate, when the valve plate rotates reversely, the valve plate cannot reach the first mechanical stop position according to the second torque, and the electric actuator is judged to be blocked.
Compared with the prior art, the technical scheme has the following technical effects: the method for judging whether the electric actuator is blocked is simpler and more efficient, can ensure that the blocking condition can be judged in time, and has no missing or undetected blocking.
In one example of the present invention, in the case of a jammed electric actuator, the method for controlling the valve plate to perform a cleaning rotation specifically includes: acquiring valve block blockage information; analyzing the valve block blockage information to obtain the position of the electric actuator blockage; and controlling the valve plate to clean and rotate according to the obtained position blocked by the electric actuator.
Compared with the prior art, the technical scheme has the following technical effects: the position information that can be more accurate acquiree the valve block and block up, it is more accurate, be convenient for control valve block carry out follow-up cleanness.
In an embodiment of the present invention, the controlling the valve plate to perform cleaning rotation specifically includes: when the valve plate rotates forwards to reach the blocking position, the valve plate is controlled to rotate to the first mechanical stopping position at the blocking position, and after the valve plate reaches the first mechanical stopping position, the valve plate rotates forwards from the first mechanical stopping position by first torque; when the valve plate reversely rotates to reach the blocking position, the valve plate is controlled to rotate to the second mechanical braking position at the blocking position, and after the valve plate reaches the second mechanical stopping position, the valve plate reversely rotates from the second mechanical stopping position by second torque.
Compared with the prior art, the technical scheme has the following technical effects: the particles blocked in the electric actuator can be dredged through the rotation of the valve plate.
In an embodiment of the present invention, the controlling the valve plate to perform cleaning rotation specifically includes: when the valve plate rotates forwards from the first mechanical stop position again with the first torque, if the valve plate does not reach the second mechanical stop position, the valve plate is repeatedly controlled to perform the cleaning rotation step; when the valve plate rotates forwards again from the first mechanical stop position by the first torque, if the valve plate does not reach the second mechanical stop position, the valve plate is controlled repeatedly to perform the cleaning rotation step.
Compared with the prior art, the technical scheme has the following technical effects: the control method of the valve plate for repeated rotation can ensure that the blocked position is effectively dredged, and the cleaning quality is higher.
In an embodiment of the present invention, the controlling the valve plate to clean specifically includes: when the valve plate rotates forwards from the first mechanical stop position again with the first torque, if the valve plate reaches the second mechanical stop position, the cleaning rotation step of the valve plate is stopped; and when the valve plate rotates forwards again from the first mechanical stop position by the first torque, if the valve plate reaches the second mechanical stop position, stopping controlling the cleaning rotation step of the valve plate.
Compared with the prior art, the technical scheme has the following technical effects: when the valve plate is cleaned and rotated, if the valve plate can reach the set rotating position in the rotating process, the valve plate is cleaned, and the cleaning and the rotation can be stopped. And after the cleaning rotation is finished, the cleaning rotation is immediately stopped, so that the valve plate and the electric actuator are conveniently protected, and the valve plate and the electric actuator are conveniently subjected to the next step.
In one embodiment of the present invention, after the valve plate is controlled to stop rotating for cleaning, the valve plate continues to enter the rotating state in the electric actuator.
Compared with the prior art, the technical scheme has the following technical effects: the valve plate can be conveniently and timely returned to the judging state after the cleaning rotation is finished, and the blocking conditions of other positions can be conveniently and timely found.
To achieve the second object of the present invention, in one example of the present invention, an electric actuator is characterized by comprising: the judging module is used for judging whether the electric actuator is blocked or not according to the rotation state of the valve plate under the condition that the valve plate in the electric actuator rotates; the control module is used for controlling the valve plate to perform cleaning rotation under the condition that the electric actuator is blocked; wherein, the valve block gyration in the electric actuator specifically includes: acquiring angle information for controlling the rotation of the valve plate; analyzing the angle information to obtain whether the rotation direction of the valve plate is forward or reverse; when the rotation direction is positive, the valve plate is controlled to rotate to a first mechanical stop position, and the valve plate is controlled to rotate to a second mechanical stop position from the first mechanical stop position according to a first torque; when the rotation direction is reverse, the valve plate is controlled to rotate to a second mechanical stop position, and the valve plate is controlled to rotate to a first mechanical stop position from the second mechanical stop position according to a second torque; wherein, according to the target number of times, the valve plate is repeatedly controlled to rotate at least twice.
Compared with the prior art, the technical scheme has the following technical effects: the judgment module can help realize the judgment process of whether the electric actuator is blocked. The control module is convenient for control the valve plate to rotate correspondingly according to the instruction, and rotation and clean rotation of the valve plate are achieved. The control method of the electric actuator is realized by the electric actuator.
To achieve the third object of the present invention, in one example of the present invention, a commercial vehicle includes: the electric actuator. The electric actuator is arranged in the commercial vehicle and used for cleaning an exhaust device of the commercial vehicle.
Compared with the prior art, the technical scheme has the following technical effects: the electric actuator is arranged in the commercial vehicle to clean the exhaust device of the commercial vehicle.
After the technical scheme of the invention is adopted, the following technical effects can be achieved:
(1) through the electric actuator, the control method thereof and the commercial vehicle, the technical effect that a commercial vehicle tail gas discharge system can automatically clean blockage is achieved;
(2) the rotation state of the valve plate in the electric actuator can ensure that the valve plate rotates back and forth between the mechanical stop position I and the mechanical stop position II, and the control method can judge whether the electric actuator is blocked in a larger range, so that the blocking position of the electric actuator can be found timely and comprehensively;
(3) the valve plate in the electric actuator is in a rotary state for multiple times according to the target times, so that the electric actuator can be in a long-time judgment state within a certain time range, and the blockage of the electric actuator can be judged and found more timely;
(4) the control method is simple and easy to realize.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for controlling an electric actuator according to an embodiment of the present invention;
FIG. 2 is a flow chart of one of the control methods for the electric actuator of FIG. 1;
FIG. 3 is a second flowchart of a method for controlling the electric actuator of FIG. 1;
FIG. 4 is a third flowchart of a method for controlling the electric actuator of FIG. 1;
FIG. 5 is a schematic block diagram of a commercial vehicle;
fig. 6 is a block diagram of an electric actuator.
Description of reference numerals:
400-commercial vehicle; 410-an electric actuator; 411-a judgment module; 412-a control module; 420-valve plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment is as follows:
a method for controlling an electric actuator, referring to fig. 1, which is a flow chart illustrating steps of the method for controlling an electric actuator, the method for controlling an electric actuator specifically includes:
step S100: under the condition that the valve plate 420 in the electric actuator 410 rotates, whether the electric actuator 410 is blocked is judged according to the rotation state of the valve plate 420;
step S200: in the event of a jam of the electric actuator 410, the control valve plate 420 performs a cleaning rotation.
In a specific embodiment, it should be specifically noted that, before step S100 and step S200, the valve sheet 420 needs to be controlled to rotate according to steps S310 to S350.
The electric actuator 410 controls the valve plate 420 to perform a rotation state, and the specific operation steps are as follows:
step S310: angle information of the revolution of the control valve sheet 420 is acquired.
Step S320: the angle information is analyzed to obtain whether the rotation direction of the valve plate 420 is forward or reverse.
Step S330: when the rotation direction is a forward direction, the control valve plate 420 rotates to the first mechanical stop position, and the control valve plate 420 rotates from the first mechanical stop position to the second mechanical stop position according to the first torque.
Step S340: when the rotation direction is reverse, the control valve plate 420 rotates to the second mechanical stop position, and the control valve plate 420 rotates from the second mechanical stop position to the first mechanical stop position according to the second torque.
Step S350: wherein the valve sheet 420 is repeatedly controlled to rotate at least twice according to the target number of times.
In a specific embodiment, the electric actuator 410 controls the valve plate 420 to rotate, so that whether the electric actuator 410 is jammed can be determined by the rotation state of the valve plate 420. In a specific control step, the electric actuator 410 acquires angle information of the rotation state of the valve plate 420, and determines the movement state of the valve plate 420 in the electric actuator 410 according to the angle information. The direction of rotation of the control valve plate 420, specifically, the forward direction and the reverse direction, can be obtained by analyzing the acquired angle information. Specifically, the valve plate 420 rotates between the first mechanical stop position and the second mechanical stop position, wherein the direction from the first mechanical stop position to the second mechanical stop position is a forward direction, and the direction from the second mechanical stop position to the first mechanical stop position is a reverse direction.
After the rotation direction of the valve sheet 420 is obtained, the range of rotation of the valve sheet 420 is determined by controlling the torque of rotation of the valve sheet 420. Wherein the torque can be changed by setting a target torque. The larger the range of rotation of the valve plate 420 is, the more comprehensively it is possible to determine whether the electric actuator 410 is clogged. The control valve plate 420 is configured such that a torque with which the valve plate 420 can be rotated in the forward direction from the first mechanical stop position to the second mechanical stop position is set as a first torque, and a torque with which the valve plate 420 can be rotated in the reverse direction from the second mechanical stop position to the first mechanical stop position is set as a second torque. The first torque and the second torque can be set through a target, and the angle range of the valve plate 420 can be changed by adjusting the torque, and the larger the range is, the more beneficial the finding of the blockage in the electric actuator 410 is.
Further, the specific rotation process of the valve plate 420 is that the valve plate 420 rotates to a first mechanical stop position, then the valve plate rotates in the forward direction and according to the first torque under the control of the electric actuator 410, and the valve plate 420 rotates to a second mechanical stop position according to the direction and the set first torque. After the valve plate 420 rotates to the second mechanical stop position, the valve plate continues to rotate according to the reverse direction and the second torque, and according to the direction and the set second torque, the valve plate 420 can rotate from the second mechanical stop position to the first mechanical stop position. The valve plate 420 rotates according to the process, and rotates from the first mechanical stop position to the second mechanical stop position and then to the first mechanical stop position, the rotation process may be called a cycle, and further, the valve plate 420 may be repeatedly controlled to rotate for at least two times to complete the cycle according to the target number of times. The target number of times can be set as required, so that the valve sheet 420 can be always in the above-described rotation state.
The determination as to whether or not the electric actuator 410 is clogged in step S100 can be continued based on the rotation state of the valve sheet 420. The valve plate 420 is always in the rotation state, and the judgment is carried out according to the rotation state, the blockage can be found more timely by the judgment method, the judgment range is limited by the rotation of the valve plate 420, and the larger the rotation range is, the larger the position range for judging whether the electric actuator 410 is blocked is. After step S100 is finished, if the electric actuator 410 is clogged, step S200 is further executed to control the valve plate 420 to perform a cleaning rotation, thereby performing a specific cleaning process.
Example two:
referring to fig. 2, the specific step of determining whether the electric actuator 410 is clogged according to the rotation state of the valve plate 420 in step S100 includes:
step S110: position information of the revolution of the valve sheet 420 is acquired.
Step S120: the position information is analyzed to obtain the position to which the valve sheet 420 rotates.
Step S130: whether the electric actuator 410 is clogged or not is judged according to the position to which the valve plate 420 is rotated.
In a specific embodiment, the determining step S100 is performed according to the rotation process of the valve plate 420 controlled in the steps S310 to S350, and therefore, the step S110 is performed first to obtain the position information of the valve plate 420, and then the step S120 is performed to obtain the specific position to which the valve plate 420 rotates by analyzing the information. The position reached during the revolution of the valve plate 420 must be between the first mechanical stop position and the second mechanical stop position. In an actual process, an angle sensor is arranged on the electric actuator 410 and connected with the valve plate 420, and the specific position of the valve plate 420 can be obtained through the angle sensor. After the position to which the valve plate 420 rotates is obtained, step S130 is performed according to the position to which the valve plate 420 rotates to determine whether the electric actuator 410 is clogged. This judgement step easy operation realizes easily, can be more accurate, accurate the state that obtains valve block 420 gyration, and further concrete position that can also judge the jam.
Example three:
in a specific embodiment, in step S130, specifically, according to the rotation state of the valve plate 420, when the valve plate 420 rotates in the forward direction and the valve plate 420 cannot reach the second mechanical stop position according to the first torque, it is determined that the electric actuator 410 is blocked; according to the rotation state of the valve plate 420, when the valve plate 420 rotates reversely, and the valve plate 420 cannot reach the first mechanical stop position according to the second torque, it is determined that the electric actuator 410 is clogged.
Further, when the valve plate 420 rotates in the forward direction, if the valve plate 420 cannot rotate from the first mechanical stop position to the second mechanical stop position in the forward rotation process, it indicates that a jam exists between the first mechanical stop position and the second mechanical stop position, and the jam causes the valve plate 420 to be stuck at the jam position, and the forward rotation process cannot be continuously completed. If the valve plate 420 cannot rotate from the second mechanical stop position to the first mechanical stop position during the reverse rotation of the valve plate 420, it indicates that there is a jam between the second mechanical stop position and the first mechanical stop position, and the jam causes the valve plate 420 to be stuck at the jam position and cannot continue to complete the reverse rotation. The position where the valve plate 420 is stuck is the position where the electric actuator 410 is jammed. The method for judging whether the electric actuator 410 is blocked is simpler and more efficient, can ensure that the blocking condition can be judged in time, and has no missing or undetected blocking.
Example four:
referring to fig. 3, in step S200, when the electric actuator 410 is clogged, the cleaning rotation of the control valve plate 420 specifically includes:
step S210: the valve sheet 420 clogging information is acquired.
Step S220: the valve plate 420 clogging information is analyzed to obtain the position where the electric actuator 410 is clogged.
Step S230: according to the obtained position of the blockage of the electric actuator 410, the valve plate 420 is controlled to perform cleaning rotation.
In one specific embodiment, step S200 may be executed after step S100 is finished and it is determined that electric actuator 410 is clogged. In step S200, first, step S210 is performed to acquire the position information of the valve sheet 420 clogging. The information of the position where the valve plate 420 is jammed is the position where the valve plate 420 is stuck in the determination process. After the jam information of the valve plate 420 is acquired, step S220 is executed to analyze the jam position information to obtain the position of the jam of the electric actuator 410. The information on the position of the blockage is determined by an angle sensor in the electric actuator 410. The position of the jam is the position where the valve sheet 420 is stuck in the judgment step S100. After the position of the electric actuator 410 is obtained, the step S230 is continued, and the valve plate 420 is controlled to rotate according to the position of the blockage, so as to clean the blockage existing at the clamping position of the valve plate 420.
Example five:
in a specific embodiment, the step S230 controls the valve plate 420 to perform cleaning rotation, specifically includes that when the valve plate 420 rotates forward to reach the blocking position, the valve plate 420 is controlled to rotate to the first mechanical stop position at the blocking position, and after the valve plate reaches the first mechanical stop position, the valve plate rotates forward from the first mechanical stop position with the first torque; when the valve plate 420 reversely rotates to reach the blocking position, the control valve plate 420 rotates to the second mechanical braking position at the blocking position, and after the valve plate reaches the second mechanical stopping position, the valve plate reversely rotates from the second mechanical stopping position by the second torque.
When the valve plate 420 is locked at the blocking position when rotating in the forward direction, the valve plate 420 is controlled to rotate, and the valve plate 420 is controlled to rotate back to the first mechanical stop position according to the information of the blocking position. After the position information of the valve plate 420 blockage is obtained, the blockage position can be known by the angle sensor, and the angle of the valve plate 420 rotating from the blockage position to the first mechanical stop position can be controlled by the angle sensor. After the valve plate 420 returns to the first mechanical stop position, it is rotated again to the second mechanical stop position with the first torque. When the valve plate 420 is jammed at the jam position when rotating in the reverse direction, the valve plate 420 is controlled to rotate, and the valve plate 420 is controlled to rotate back to the second mechanical stop position according to the jam position information. After the position information of the valve plate 420 blockage is obtained, the blockage position can be known by the angle sensor, and the angle for controlling the valve plate 420 to rotate to the second mechanical stop position from the blockage position can be obtained by the angle sensor. After the valve plate 420 returns to the second mechanical stop position, it is rotated again to the first mechanical stop position with the second torque.
Further, through the rotation process after the valve plate 420 is stuck, when the valve plate 420 rotates again to the specified position with the first torque or the second torque, the blocking position is certainly passed, and in the process of rotating again, an external force is applied to the particles at the blocking position. Through this process that valve plate 420 rotates according to first torque or second torque once more, can break up the particulate matter that blocks up to dredge the jam at this position.
Example six:
in a specific embodiment, the step S230 is to control the valve plate 420 to perform cleaning rotation, and specifically, the method further includes, when the valve plate 420 rotates forward again from the first mechanical stop position with the first torque, if the valve plate does not reach the second mechanical stop position, repeatedly controlling the valve plate 420 to perform cleaning rotation; when the valve plate 420 rotates forward again from the first mechanical stop position with the first torque, if the valve plate does not reach the second mechanical stop position, the cleaning rotation step of the valve plate 420 is repeatedly controlled.
After the valve plate 420 rotates again, the possibility that the jammed particles cannot be scattered exists, and at the moment, the jam still exists, and when the valve plate 420 rotates again, the jam still can be stuck at the jamming position. If the valve plate is stuck again, the cleaning rotation step in the fifth embodiment is repeated until the valve plate 420 can rotate to the designated position. Therefore, the blockage can be ensured to be cleaned certainly, and the cleaning quality is ensured.
Example seven:
in a specific embodiment, the step S230 of controlling the valve plate 420 to perform cleaning rotation specifically includes stopping the cleaning rotation step of controlling the valve plate 420 if the valve plate 420 reaches the second mechanical stop position when rotating forward again from the first mechanical stop position with the first torque; when the valve plate 420 rotates forward again from the first mechanical stop position with the first torque, the cleaning rotation step of the valve plate 420 is stopped if the second mechanical stop position is reached.
When the valve plate 420 rotates during cleaning, if the valve plate 420 can reach the set rotational position during rotation, it indicates that the valve plate 420 has completed cleaning. The control valve plate 420 stops to perform step S230, and the control valve plate 420 stops to perform cleaning rotation. The cleaning rotation is stopped immediately after the cleaning rotation is completed, so that the valve sheet 420 and the electric actuator 410 are protected, and the valve sheet 420 and the electric actuator 410 are subjected to the next step.
Example eight:
in one embodiment, after the cleaning rotation of the valve plate 420 is stopped, the valve plate 420 in the electric actuator 410 continues to rotate. Referring to fig. 4, a flowchart of the steps of the overall electric actuator control method is shown. In the electric actuator control method, first, steps S310 to S350 are performed, and the control valve sheet 420 is rotated in a predetermined manner. Performing step S100 according to the rotation state of the valve plate 420, determining whether the electric actuator 410 is clogged, and if the electric actuator 410 is not clogged, continuing to rotate the valve plate 420; if the electric actuator 410 is blocked, step S200 is performed, the valve plate 420 is controlled to perform cleaning rotation, after the cleaning rotation of the valve plate 420 is completed, the cleaning rotation process of the valve plate 420 is stopped, and the valve plate 420 is controlled to perform the rotation process of steps S310 to S350 again. The process is convenient for the valve plate 420 to return to the judging state in time after the cleaning rotation is finished, and the blocking condition of other positions can be found in time.
Example nine:
in one particular embodiment, an electric actuator 410 is contemplated, comprising: the judging module 411, the judging module 411 is used for judging whether the electric actuator 410 is blocked according to the rotation state of the valve plate 420 under the condition that the valve plate 420 in the electric actuator 410 rotates; the control module 412, the control module 412 is used for controlling the valve plate 420 to perform cleaning rotation under the condition that the electric actuator 410 is blocked; wherein, the valve block 420 in the electric actuator 410 revolves, specifically includes: acquiring angle information for controlling the rotation of the valve plate 420; analyzing the angle information to obtain whether the rotation direction of the valve plate 420 is forward or reverse; when the rotation direction is a forward direction, the control valve plate 420 rotates to a first mechanical stop position, and the control valve plate 420 rotates from the first mechanical stop position to a second mechanical stop position according to a first torque; when the rotation direction is reverse, the control valve plate 420 rotates to a second mechanical stop position, and the control valve plate 420 rotates from the second mechanical stop position to the first mechanical stop position according to a second torque; wherein the valve sheet 420 is repeatedly controlled to rotate at least twice according to the target number of times.
The electric actuator control methods described above are all performed in the electric actuator in this embodiment. The determination module 411 can assist in determining whether the electric actuator 410 is jammed. The control module 412 controls the valve plate 420 to rotate correspondingly according to the instruction, so as to realize the rotation and cleaning rotation of the valve plate 420. The electric actuator 410 facilitates the electric actuator control method described above.
Example ten:
in one particular embodiment, a commercial vehicle 400 includes an electric actuator 410 as described above in the ninth embodiment. An electric actuator 410 is provided in the commercial vehicle 400 for cleaning the exhaust of the commercial vehicle 400. The electric actuator 410 is arranged in the commercial vehicle 400 to clean the exhaust device of the commercial vehicle 400. The commercial vehicle 400 is more efficient in terms of exhaust gas treatment and the commercial vehicle 400 may be a bus or truck.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An electric actuator control method, characterized by comprising:
under the condition that a valve plate in an electric actuator rotates, judging whether the electric actuator is blocked or not according to the rotation state of the valve plate;
under the condition that the electric actuator is blocked, the valve plate is controlled to perform cleaning rotation;
wherein, the valve block gyration in the electric actuator specifically includes:
acquiring the rotation angle information of the control valve plate;
analyzing the angle information to obtain whether the rotation direction of the valve plate is forward or reverse;
when the rotation direction is positive, the valve plate is controlled to rotate to a first mechanical stop position, and the valve plate is controlled to rotate to a second mechanical stop position from the first mechanical stop position according to a first torque;
when the rotation direction is reverse, the valve plate is controlled to rotate to a second mechanical stop position, and the valve plate is controlled to rotate to a first mechanical stop position from the second mechanical stop position according to a second torque;
and repeatedly controlling the valve plate to rotate at least twice according to the target times.
2. The control method according to claim 1, wherein the determining whether the electric actuator is clogged according to the rotation state of the valve plate specifically includes:
acquiring the position information of the rotation of the valve plate;
analyzing the position information to obtain the position where the valve plate rotates;
and judging whether the electric actuator is blocked or not according to the position where the valve plate rotates to reach.
3. The control method according to claim 2, wherein the determining whether the electric actuator is clogged specifically includes:
according to the rotation state of the valve plate, when the valve plate rotates in the forward direction and the valve plate cannot reach a second mechanical stop position according to the first torque, the electric actuator is judged to be blocked;
and according to the rotation state of the valve plate, when the valve plate rotates reversely and the valve plate cannot reach the first mechanical stop position according to the second torque, the electric actuator is judged to be blocked.
4. The control method according to claim 1, wherein the controlling the valve plate to perform a cleaning revolution in case of a blockage of the electric actuator comprises:
acquiring the valve plate blockage information;
analyzing the valve block blockage information to obtain the position of the electric actuator blockage;
and controlling the valve plate to clean and rotate according to the obtained position blocked by the electric actuator.
5. The control method according to claim 4, wherein the controlling the valve plate to perform cleaning rotation specifically comprises:
when the valve plate positively rotates to reach the blocking position, the valve plate is controlled to rotate to the first mechanical stopping position at the blocking position, and after the valve plate reaches the first mechanical stopping position, the valve plate positively rotates from the first mechanical stopping position by the first torque;
when the valve plate reversely rotates to reach the blocking position, the valve plate is controlled to rotate to the second mechanical braking position at the blocking position, and after the valve plate reaches the second mechanical stopping position, the valve plate reversely rotates from the second mechanical stopping position by the second torque.
6. The control method according to claim 5, wherein the controlling the valve plate to perform cleaning rotation specifically comprises:
when the valve plate rotates forwards from the first mechanical stop position by the first torque again, if the valve plate does not reach the second mechanical stop position, the step of controlling the valve plate to clean and rotate is repeated;
and when the valve plate rotates forwards from the first mechanical stop position by the first torque again, if the valve plate does not reach the second mechanical stop position, the step of controlling the valve plate to clean and rotate is repeated.
7. The control method according to claim 6, wherein the controlling the valve sheet to clean specifically comprises:
when the valve plate rotates forwards from the first mechanical stop position by the first torque again, if the valve plate reaches the second mechanical stop position, stopping the cleaning rotation step of controlling the valve plate;
and stopping the cleaning rotation step of controlling the valve plate if the valve plate reaches the second mechanical stop position when the valve plate rotates forwards from the first mechanical stop position by the first torque again.
8. The control method according to any one of claims 1 to 7, wherein the valve plate continues to enter a valve plate rotation state in the electric actuator after the valve plate is controlled to stop rotating and cleaning.
9. An electric actuator, comprising:
the judging module is used for judging whether the electric actuator is blocked or not according to the rotation state of the valve plate under the condition that the valve plate in the electric actuator rotates;
the control module is used for controlling the valve plate to perform cleaning rotation under the condition that the electric actuator is blocked;
wherein, the valve block gyration in the electric actuator specifically includes:
acquiring the rotation angle information of the control valve plate;
analyzing the angle information to obtain whether the rotation direction of the valve plate is forward or reverse;
when the rotation direction is positive, the valve plate is controlled to rotate to a first mechanical stop position, and the valve plate is controlled to rotate to a second mechanical stop position from the first mechanical stop position according to a first torque;
when the rotation direction is reverse, the valve plate is controlled to rotate to a second mechanical stop position, and the valve plate is controlled to rotate to a first mechanical stop position from the second mechanical stop position according to a second torque;
and repeatedly controlling the valve plate to rotate at least twice according to the target times.
10. A commercial vehicle comprising: the control method of an electric actuator according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111025176.9A CN113775421A (en) | 2021-09-02 | 2021-09-02 | Electric actuator and control method thereof and commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111025176.9A CN113775421A (en) | 2021-09-02 | 2021-09-02 | Electric actuator and control method thereof and commercial vehicle |
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| CN113775421A true CN113775421A (en) | 2021-12-10 |
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| CN202111025176.9A Pending CN113775421A (en) | 2021-09-02 | 2021-09-02 | Electric actuator and control method thereof and commercial vehicle |
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|---|---|---|---|---|
| JPH07189752A (en) * | 1993-12-27 | 1995-07-28 | Nissan Motor Co Ltd | Auxiliary air valve |
| CN101329563A (en) * | 2008-07-28 | 2008-12-24 | 柴庆宣 | Pulse control method of electric activator |
| CN105020412A (en) * | 2015-08-11 | 2015-11-04 | 天津市精沃阀门科技有限公司 | Electric control anti-blocking butterfly valve |
| CN106383024A (en) * | 2016-09-29 | 2017-02-08 | 联合汽车电子有限公司 | Electronic throttle valve micro clamping stagnation test method |
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2021
- 2021-09-02 CN CN202111025176.9A patent/CN113775421A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07189752A (en) * | 1993-12-27 | 1995-07-28 | Nissan Motor Co Ltd | Auxiliary air valve |
| CN101329563A (en) * | 2008-07-28 | 2008-12-24 | 柴庆宣 | Pulse control method of electric activator |
| CN105020412A (en) * | 2015-08-11 | 2015-11-04 | 天津市精沃阀门科技有限公司 | Electric control anti-blocking butterfly valve |
| CN106383024A (en) * | 2016-09-29 | 2017-02-08 | 联合汽车电子有限公司 | Electronic throttle valve micro clamping stagnation test method |
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Effective date of registration: 20230828 Address after: Tongjiaosi Village, Chunhu Town, Fenghua District, Ningbo City, Zhejiang Province, 315500 Applicant after: NINGBO XIECHENG POWER TOOLS Co.,Ltd. Applicant after: NINGBO COLET ELECTRICAL APPLIANCE Co.,Ltd. Address before: 315500 Chun Hu Zhen Tong Jiao Si Cun, Fenghua City, Ningbo City, Zhejiang Province Applicant before: NINGBO XIECHENG POWER TOOLS Co.,Ltd. Applicant before: NINGBO COLET ELECTRICAL APPLIANCE Co.,Ltd. Applicant before: Ningbo xieno electromechanical Co.,Ltd. |
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Application publication date: 20211210 |