CN114278725B - Gear shifting position self-adaptive control method, gear shifting actuating mechanism and gear shifting device - Google Patents
Gear shifting position self-adaptive control method, gear shifting actuating mechanism and gear shifting device Download PDFInfo
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- CN114278725B CN114278725B CN202210001269.6A CN202210001269A CN114278725B CN 114278725 B CN114278725 B CN 114278725B CN 202210001269 A CN202210001269 A CN 202210001269A CN 114278725 B CN114278725 B CN 114278725B
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Abstract
The invention discloses a gear shifting position self-adaptive control method, a gear shifting actuating mechanism and a gear shifting device, and relates to the technical field of automobile gear shifting control. The gear shifting position self-adaptive control method comprises the following steps: detecting an abnormal angle of the gear shifting block which continues to rotate after rotating the gear shifting angle; and correcting the gear shifting angle according to the abnormal angle to be a correction angle, so that after the gear shifting head rotates to correct the angle, the distance for driving the gear shifting block to move is a gear shifting distance. The gear shifting position self-adaptive control method, the gear shifting actuating mechanism and the gear shifting device have the characteristic of being capable of automatically adapting to the gear shifting abrasion condition before the gear shifting fault occurs.
Description
Technical Field
The invention relates to the technical field of automobile gear shifting control, in particular to a gear shifting position self-adaptive control method, a gear shifting actuating mechanism and a gear shifting device.
Background
In the existing automobile gear shifting mechanism, a gear shifting head of a gear shifting actuator is pushed to a target gear position so as to drive a gear shifting block to move to a gear shifting position.
However, as the gear shifting head and the matched gear shifting block are worn, the gear shifting actuator still pushes the gear shifting head to a target gear position, and the actual moving position of the gear shifting block gradually decreases along with the increase of the wear loss, so that the gear shifting is likely to be unsuccessful or out of gear after the wear loss reaches a certain limit value.
In addition, the existing processing mode is to update the moving position of the gear shifting block after multiple times of gear shifting fails or the number of driving miles is reached, so that the occurrence of the fault cannot be avoided, and the fault even causes traffic accidents in the high-speed driving process of the automobile.
In view of the above, it is important to develop a shift position adaptive control method, a shift actuator and a shifting apparatus that can solve the above technical problems.
Disclosure of Invention
The invention aims to provide a gear shifting position self-adaptive control method, a gear shifting actuating mechanism and a gear shifting device, which have the characteristics of being capable of automatically adapting to the gear shifting abrasion condition before the gear shifting fault occurs.
The invention provides a technical scheme that:
in a first aspect, an embodiment of the present invention provides a shift position adaptive control method, which is applied to a shift controller of a shift execution mechanism, wherein the shift execution mechanism drives a shift block with a shift groove to move a shift distance by rotating a shift angle through a shift knob with one end located in the shift groove, so that a shift tooth is driven by the shift block to move to complete a shift action, and a self-locking pressure holding member of the shift execution mechanism can be pressed into the shift groove on the shift block when the shift block moves the shift distance;
the shift position adaptive control method includes:
detecting an abnormal angle of the gear shifting block which continues to rotate after rotating the gear shifting angle;
and correcting the gear shifting angle into a correction angle according to the abnormal angle, so that after the gear shifting head rotates the correction angle, the distance for driving the gear shifting block to move is the gear shifting distance.
With reference to the first aspect, in another implementation manner of the first aspect, before the step of correcting the shift angle to the correction angle according to the abnormal angle, the control method further includes:
calculating the abnormal distance of the shift shifting block according to the abnormal angle;
judging whether the abnormal distance is larger than a first set value or not;
and when the abnormal distance is larger than the first set value, executing the step of correcting the gear shifting angle into the correction angle according to the abnormal angle.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the step of performing correction of the shift angle according to the abnormal angle to the correction angle further includes:
recording the abnormal angle and the abnormal times;
judging whether the abnormal times are larger than a second set value or not;
and when the abnormal times are larger than the second set value, calculating the sum of the recorded abnormal angles divided by the abnormal times, adding a calculated value of the gear shifting angle, and taking the calculated value as the correction angle.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, an inner wall of the shift groove is a hemispherical concave groove with a radius of R, and a portion of the self-locking pressing and holding member pressed into the shift groove is a ball with a radius of R;
the first set point is R-Z, where Z is a wear threshold.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, a shift driving element of the shift actuating mechanism is configured to drive the shift dial to rotate by the shift angle, and power is turned off after the shift dial is rotated by the shift angle;
after the step of detecting the abnormal angle that continues to rotate after the shift dial rotates by the shift angle, the control method further includes:
detecting an abnormal time length between the power-off moment of the gear shifting driving piece and the moment when the gear shifting head starts to rotate continuously;
and correcting the abnormal angle according to the abnormal duration.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the step of correcting the abnormal angle according to the abnormal duration includes:
and reading an abnormal duration-angle value comparison table, and increasing the numerical value of the abnormal angle, wherein the increased numerical value is the angle value corresponding to the abnormal duration.
In a second aspect, an embodiment of the present invention further provides a shift actuator, which employs the shift position adaptive control method, and the shift actuator includes a shift knob, a shift block, a self-locking pressing member, a shift controller, and a shift driving member and an angle sensor, which are in communication connection with the shift controller;
a gear shifting groove and a gear groove are formed in the gear shifting block and are arranged close to the self-locking pressing piece; one end of the gear shifting head is connected with the gear shifting driving piece, and the other end of the gear shifting head is positioned in the gear shifting groove; the gear shifting driving piece can drive the gear shifting head to rotate by a gear shifting angle so as to drive the gear shifting block to move by a gear shifting distance, so that the gear shifting action is completed by driving the gear shifting teeth to move through the gear shifting block, and the self-locking pressing piece can be pressed into the corresponding gear groove when the gear shifting block moves by the gear shifting distance;
the angle sensor is used for detecting an abnormal angle which continues to rotate after the gear shifting head rotates the gear shifting angle, and the gear shifting controller can correct the gear shifting angle to be a corrected angle according to the abnormal angle, so that the gear shifting driving piece drives the gear shifting head to rotate the corrected angle and then drives the gear shifting block to move by the distance which is the gear shifting distance.
With reference to the second aspect, in a first implementation manner of the second aspect, an inner wall of the shift groove is a hemispherical concave groove with a radius of R, and a portion of the self-locking pressing and holding member pressed into the shift groove is a ball with the radius of R;
the gear shifting controller can also calculate the abnormal distance of the shift shifting block according to the abnormal angle; judging whether the abnormal distance is larger than a first set value or not; and when the abnormal distance is larger than the first set value, executing a step of correcting the gear shifting angle into the correction angle according to the abnormal angle, wherein the first set value is (R-Z), and Z is a wear threshold.
With reference to the second aspect and the foregoing implementation manner, in a second implementation manner of the second aspect, the shift driving element of the shift actuating mechanism is configured to drive the shift paddle to rotate by the shift angle, and the power is cut off after the shift paddle rotates by the shift angle;
the gear shifting controller can also detect the abnormal time length from the power-off time of the gear shifting driving piece to the time when the gear shifting head starts to continue rotating, and correct the abnormal angle or the corrected angle according to the abnormal time length.
In a third aspect, an embodiment of the present invention further provides a gear shifting device, which includes the gear shifting actuator. The gear shifting executing mechanism adopts the gear shifting position self-adaptive control method and comprises a gear shifting head, a gear shifting block, a self-locking pressing holding piece, a gear shifting controller, a gear shifting driving piece and an angle sensor, wherein the gear shifting driving piece and the angle sensor are in communication connection with the gear shifting controller; a gear shifting groove and a gear groove are formed in the gear shifting block and are arranged close to the self-locking pressing piece; one end of the gear shifting head is connected with the gear shifting driving piece, and the other end of the gear shifting head is positioned in the gear shifting groove; the gear shifting driving piece can drive the gear shifting head to rotate by a gear shifting angle so as to drive the gear shifting block to move by a gear shifting distance, so that the gear shifting action is completed by driving the gear shifting teeth to move by the gear shifting block, and the self-locking pressing piece can be pressed into the corresponding gear groove when the gear shifting block moves by the gear shifting distance; the angle sensor is used for detecting an abnormal angle which continues to rotate after the gear shifting head rotates the gear shifting angle, and the gear shifting controller can correct the gear shifting angle to be a corrected angle according to the abnormal angle, so that the gear shifting driving piece drives the gear shifting head to rotate the corrected angle and then drives the gear shifting block to move by the distance which is the gear shifting distance.
Compared with the prior art, the gear shifting position self-adaptive control method provided by the embodiment of the invention has the following beneficial effects that:
after shifting the shifting block and the wearing and tearing of groove inner wall of shifting, the auto-lock is pressed and is held a further gear recess of impressing and will drive the shifting block of shifting and continue to remove when shifting, make the shifting block further rotate, the shifting block that shifts this moment continues pivoted unusual angle can reflect the shifting block and the groove inner wall wearing and tearing condition of shifting, and, shift shifting block pivoted angle through unusual angle correction for correction angle, so that the driving piece of shifting drives the shifting block of shifting and rotate the distance that drives the shifting block of shifting and remove after correcting the angle for the distance of shifting, thereby adapt to the condition of shifting the shifting block and the groove inner wall wearing and tearing of shifting, with the problem of the wearing and tearing condition of automatic adaptation shifting block and the groove inner wall of shifting before the trouble that shifts not in place appears.
Compared with the prior art, the beneficial effects of the gear shifting executing mechanism and the gear shifting device provided by the embodiment of the invention are the same as the beneficial effects of the gear shifting position self-adaptive control method compared with the prior art, and are not repeated herein.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a shift actuator applied to a gear shifting device according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a shift actuator in neutral according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the shift actuator according to the first embodiment of the present invention when the shift actuator is shifted to the Y2 position normally.
Fig. 4 is a schematic structural diagram of the shift actuator according to the first embodiment of the present invention, which is worn and is not shifted to the Y2 position normally.
Fig. 5 is a schematic structural diagram of the shift actuator according to the first embodiment of the present invention, which is worn and is not shifted normally, and is driven by the self-locking holding member to shift to the Y2 position.
Fig. 6 is a schematic structural diagram of the shift actuator according to the first embodiment of the present invention, which is shifted to the Y2 position after the shift angle is corrected.
Fig. 7 is a flowchart illustrating a shift position adaptive control method according to a second embodiment of the present invention.
Fig. 8 is a partial flowchart of a shift position adaptive control method according to a second embodiment of the present invention before step S200.
Fig. 9 is a partial flowchart of the shift position adaptive control method in step S230 according to the second embodiment of the present invention.
Fig. 10 is a flowchart illustrating another part of a shift position adaptive control method according to a second embodiment of the present invention.
An icon: 100-a gear shift device; 20-gear shifting teeth; 21-first gear teeth; 22-second gear teeth; 10-a shift actuator; 11-a gear shift knob; 12-a shift paddle; 121-shift grooves; 122-gear groove; 13-self-locking holding piece; 15-a shift controller; 16-a gear change drive; 17-angle sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following describes in detail embodiments of the present invention with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a shift actuator 10 applied to a shifting device 100 according to a first embodiment of the present invention.
The first embodiment of the present invention provides a shift actuator 10, and the shift actuator 10 has a feature of being able to automatically adapt to the wear of the gear shift before the gear shift failure occurs. The shift actuator 10 can be applied to a shift device 100 and the like, and the shift device 100 may be a shift portion of an automobile, a truck ship, and the like. When the shift actuator 10 is applied to the gear shifting device 100, the shift actuator 10 is connected to the shift teeth 20 of the gear shifting device 100 to drive the shift teeth 20 to move, so as to complete the gear shifting operation, it should be noted that, in the present embodiment, the shift teeth 20 are sleeves, the gear shifting device 100 has a neutral position and first and second shift teeth 21 and 22, and the shift actuator 10 completes the gear shifting operation by driving the sleeves to move to the first and second shift teeth 21 and 22 or to move to the space between the first and second shift teeth 21 and 22, of course, in other embodiments, the gear shifting device 100 may also have other structures. Since the gear shifting device 100 adopts the gear shifting actuating mechanism 10 provided by the first embodiment of the invention, the gear shifting device 100 also has the characteristic of automatically adapting to the gear shifting wear condition before the gear shifting fault occurs.
The structural composition, the operating principle and the advantageous effects of the shift actuator 10 according to the first embodiment of the present invention will be described in detail below.
Referring to fig. 1, and fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, fig. 2 is a schematic structural diagram of a shift actuator 10 according to a first embodiment of the present invention in a neutral position. Fig. 3 is a schematic structural diagram of the shift actuator 10 according to the first embodiment of the present invention when it is shifted to the Y2 position normally. Fig. 4 is a schematic structural diagram of the shift actuator 10 according to the first embodiment of the present invention when it is worn and not shifted to the Y2 position normally. Fig. 5 is a schematic structural diagram of the shift actuator 10 according to the first embodiment of the present invention when the shift actuator is worn and is not shifted to the Y2 position under the driving of the self-locking pressing member 13 after a normal shift is performed. Fig. 6 is a schematic structural diagram of the shift actuator 10 according to the first embodiment of the present invention, after correcting the shift angle, when shifting to the Y2 position normally. In fig. 2 to 6, the Y1 position corresponds to the first gear tooth 21, the Y0 position corresponds to the interval between the first gear tooth 21 and the second gear tooth 22, the Y2 position corresponds to the second gear tooth 22, Δ Y is an abnormal distance, θ 2 is a shift angle, and β 2 is a correction angle.
The gear shifting executing mechanism 10 comprises a gear shifting head 11, a gear shifting block 12, a self-locking pressing piece 13, a gear shifting controller 15, a gear shifting driving piece 16 and an angle sensor 17, wherein a gear shifting groove 121 and a gear shifting groove 122 are formed in the gear shifting block 12, and the gear shifting block 12 is arranged close to the self-locking holding piece 13, one end of the gear shifting block 11 is connected with the gear shifting driving piece 16, the other end is positioned in the gear shifting groove 121, the gear shifting driving piece 16 can drive the gear shifting block 11 to rotate a gear shifting angle, in order to be located the one end of shifting groove 121 through shift bar 11 and drive shift block 12 and move the distance of shifting, thereby shift the action of accomplishing through shift block 12 drive shift tooth 20 and remove, and, when shift block 12 removes the distance of shifting, self-locking pressure holding member 13 can impress corresponding gear recess 122, in other words, when shift block 12 removes the distance of shifting, self-locking pressure holding member 13 corresponds with gear recess 122, thereby impress in gear recess 122, in order to restrict the position of shift block 12, as shown in fig. 3. And the angle sensor 17 is used for detecting an abnormal angle which continues to rotate after the gear shifting block 11 rotates the gear shifting angle, the gear shifting controller 15 is in communication connection with the gear shifting driving piece 16 and the angle sensor 17, and the gear shifting controller 15 can correct the gear shifting angle according to the abnormal angle to be a correction angle, so that after the gear shifting driving piece 16 drives the gear shifting block 11 to rotate the correction angle, the distance for driving the gear shifting block 12 to move is a gear shifting distance. Thus, after the inner walls of the shift knob 11 and the shift groove 121 are worn, the shift knob 11 rotating the shift angle cannot drive the shift knob 12 to move the shift distance, the distance that the shift knob 11 rotating the shift angle drives the shift knob 12 to move is smaller than the shift distance, and the self-locking pressing part 13 cannot be completely pressed into the shift groove 122, as shown in fig. 4, the self-locking pressing part 13 has the press-in shift groove 122, so that the shift tooth 20 shifts in place, and the self-locking pressing part 13 further presses the shift knob 12 to move continuously when pressing into the shift groove 122, so that the shift knob 11 further rotates, as shown in fig. 4-5, the abnormal angle that the shift knob 11 continues to rotate at this time can reflect the wear condition of the inner walls of the shift knob 11 and the shift groove 121, and after the rotating angle of the shift knob 11 is corrected by the abnormal angle, so that the shift driving part 16 drives the shift knob 11 to rotate and correct the angle, the distance that the shift knob 12 moves is the shift distance, as shown in fig. 6, thereby adapting to the wear condition of the inner walls of the shift knob 11 and the shift groove 11 and the inner walls before the wear condition of the shift groove 121, and the wear problem of the wear of the shift groove 11 before-in-shift stability of the shift operation before-shift operation of the shift failure and the shift groove 121 occur.
Further, the shift controller 15 can also calculate an abnormal distance that the corresponding shift paddle 12 moves according to the abnormal angle; judging whether the abnormal distance is larger than a first set value or not; and when the abnormal distance is larger than the first set value, executing the step of correcting the gear shifting angle according to the abnormal angle to be the correction angle, thereby correcting when the abrasion reaches a certain degree and reducing the correction frequency.
In addition, in this embodiment, the inner wall of the shift groove 121 is a hemispherical concave groove with a radius of R, and the portion of the self-locking pressing member 13 pressed into the shift groove 121 is a ball with a radius of R, in this embodiment, the self-locking pressing member 13 has a tendency to be pressed into the shift groove 122 downward under the action of its own spring. And the first set value is (R-Z) and Z is a wear threshold value, so that the degree of wear is determined according to the abnormal distance and the radius of the shift groove 121, thereby performing the work of correcting the shift angle in time. When the abnormal distance is large, it indicates that the dislocation degree between the tail end of the self-locking pressing holding piece 13 and the gear shifting groove 121 is large, and the larger the dislocation degree is, the more easily the phenomenon that the self-locking pressing holding piece 13 is difficult to enter the gear shifting groove 121 occurs, which may cause gear shifting failure or gear shifting.
Further, the shift controller 15 can also record the abnormal angle and record the number of abnormalities when it is judged that the abnormal distance is greater than the first set value; judging whether the abnormal times are larger than a second set value or not; and when the abnormal times are larger than a second set value, calculating the sum of the recorded abnormal angles divided by the abnormal times, adding the calculated value of the gear shifting angle, and taking the calculated value as a correction angle.
It should be noted that the method of correcting the rotation angle of the shift dial 11 by the abnormal angle may be that the angle value of the shift angle is directly increased, and the increased angle value is the angle value of the abnormal angle.
Further, the shift drive 16 of the shift actuator 10 is de-energized after the driving shifter 11 has rotated the shift angle. The shift controller 15 is also capable of detecting an abnormal period of time from when the shift actuator 16 is powered off to when the shift knob 11 starts to continue rotating, and correcting the abnormal angle according to the abnormal period of time. Thus, after shift bar 11 and shift groove 121 inner wall are seriously worn, a gap may appear between shift bar 11 and shift groove 121 inner wall, after shift bar 11 rotates the shift angle, the distance that it drives shift block 12 to move is less than the shift distance, and after shift driving piece 16 is powered off, self-locking pressure holding piece 13 further presses in shift groove 122 to drive shift block 12 to continue moving, if there is a gap between shift bar 11 and shift groove 121 inner wall, then can make shift block 12 begin to continue moving in the previous period of time and not drive shift bar 11 to rotate, this period of time is just long abnormally, through correcting abnormal angle according to the length of time abnormally, thereby further improving the precision of abnormal angle.
The method for correcting the abnormal angle according to the abnormal duration may be: reading the comparison table of the abnormal duration and the angle value, increasing the value of the abnormal angle, wherein the increased value is the angle value corresponding to the abnormal duration, and the value of the abnormal duration and the angle value represent the theoretical angle value of the gear shifting head 11 which is driven to rotate under different vertical abnormal durations, and the theoretical angle value can be calibrated by experiments or obtained by experience. Of course, in other embodiments, the abnormal duration may be converted into the distance moved by the shift block 12 within the corresponding time, the abnormal distance is corrected according to the distance, and the corrected angle is corrected according to the corrected abnormal distance.
In addition, the above description is similar in the shifting process distance from the shift stage notch 122 at the Y0 position to the shift stage notch 122 at the Y2 position, and in the shifting process from the shift stage notch 122 at the Y2 position to the shift stage notch 122 at the Y0 position, from the shift stage notch 122 at the Y0 position to the shift stage notch 122 at the Y1 position and from the shift stage notch 122 at the Y1 position to the shift stage notch 122 at the Y0 position, and the description thereof is omitted.
In summary, the first embodiment of the present invention provides a shift actuator 10, which has the feature of being able to automatically adapt to the wear condition of the gear shift before the gear shift failure occurs.
Second embodiment:
referring to fig. 7, fig. 7 is a flowchart illustrating a shift position adaptive control method according to a second embodiment of the present invention.
A second embodiment of the present invention provides a shift position adaptive control method, which can be applied to the shift actuator 10 described above, and which also has a feature of being able to automatically adapt to a shift wear condition before a shift failure occurs. It should be noted that the basic principle and the technical effects of the shift position adaptive control method provided by the present embodiment are the same as those of the shift actuator 10 in the first embodiment, and for the sake of brief description, the corresponding contents in the above-mentioned embodiments can be referred to where this embodiment is not mentioned.
The self-adaptive control method for the gear shifting position comprises the following steps:
step S100: detecting an abnormal angle of the gear shifting block 11 which continues to rotate after rotating the gear shifting angle;
step S200: and correcting the gear shifting angle according to the abnormal angle to be a correction angle, so that after the gear shifting head 11 rotates to correct the angle, the distance for driving the gear shifting block 12 to move is a gear shifting distance.
Thus, after the inner walls of the gear shifting dial 11 and the gear shifting groove 121 are abraded, the self-locking pressing piece 13 drives the gear shifting dial 12 to move continuously when being further pressed into the gear shifting groove 122 during gear shifting, so that the gear shifting dial 11 further rotates, the abnormal angle of continuous rotation of the gear shifting dial 11 can reflect the abrasion conditions of the inner walls of the gear shifting dial 11 and the gear shifting groove 121, the rotating angle of the gear shifting dial 11 is corrected through the abnormal angle, the distance of driving the gear shifting dial 12 to move after the gear shifting drive piece 16 drives the gear shifting dial 11 to rotate for correcting the angle is the gear shifting distance, the abrasion conditions of the inner walls of the gear shifting dial 11 and the gear shifting groove 121 are adapted, and the problem of automatically adapting to the abrasion conditions of the inner walls of the gear shifting dial 11 and the gear shifting groove 121 before the failure of gear shifting is not in place is solved.
With continuing reference to fig. 7 and fig. 8, fig. 8 is a partial flow chart of the shift position adaptive control method according to the second embodiment of the present invention before step S200.
Before step S200, the control method may further include:
step S210: calculating the abnormal distance of the shift block 12 according to the abnormal angle;
step S220: judging whether the abnormal distance is larger than a first set value or not;
step S230: and when the abnormal distance is larger than the first set value, executing the step of correcting the gear shifting angle into a correction angle according to the abnormal angle. Therefore, when the abrasion reaches a certain degree, correction is carried out, and the correction frequency is reduced.
Referring to fig. 8 and fig. 9, fig. 9 is a partial flowchart of the shift position adaptive control method in step S230 according to the second embodiment of the present invention.
Also, step S230 may further include:
step S231: recording the abnormal angle and the abnormal times;
step S232: judging whether the abnormal times are greater than a second set value or not;
step S233: when the number of abnormality times is larger than a second set value, the sum of the recorded abnormality angles is divided by the number of abnormality times, and the calculated value of the shift angle is added to the sum of the recorded abnormality angles and is used as a correction angle. When the times that the abnormal distance exceeds the first set value are larger than the second set value, the average value of the abnormal angles and the gear shifting angle are used as correction angles, and the accuracy of the correction angles is improved.
With continuing reference to fig. 7 and 10, fig. 10 is a schematic flowchart of another part of the adaptive control method for shift position according to the second embodiment of the present invention.
Further, after step S100, the control method may further include:
step S310: detecting an abnormal time period from the moment when the gear shifting driving piece 16 is powered off to the moment when the gear shifting knob 11 starts to rotate continuously;
step S320: and correcting the abnormal angle according to the abnormal time length.
So as to reduce or eliminate the influence of the gap existing between the shift dial 11 and the inner wall of the shift groove 121 on the abnormal angle, correct the abnormal angle according to the abnormal duration, and further improve the accuracy of the abnormal angle.
In summary, the following steps:
a second embodiment of the present invention provides a shift position adaptive control method, which has a feature of automatically adapting to a shift wear condition before a shift failure occurs.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Also, the embodiments should be considered as exemplary and non-limiting.
Claims (8)
1. A gear-shifting position self-adaptive control method is characterized by being applied to a gear-shifting controller (15) of a gear-shifting execution mechanism, wherein the gear-shifting execution mechanism drives a gear-shifting block (12) with a gear-shifting groove (121) to move a gear-shifting distance by rotating a gear-shifting head (11) with one end positioned in the gear-shifting groove (121), so that a gear-shifting tooth (20) is driven by the gear-shifting block (12) to move to complete gear-shifting action, and a self-locking pressure holding piece (13) of the gear-shifting execution mechanism can be pressed into a gear groove (122) on the gear-shifting block (12) when the gear-shifting block (12) moves the gear-shifting distance;
the shift position adaptive control method includes:
detecting an abnormal angle of the gear shifting block (11) which continues to rotate after rotating the gear shifting angle;
correcting the gear shifting angle according to the abnormal angle to be a correction angle, so that after the gear shifting head (11) rotates by the correction angle, the distance for driving the gear shifting block (12) to move is the gear shifting distance;
before the step of correcting the shift angle in accordance with the abnormal angle to the corrected angle, the control method further includes:
calculating the abnormal distance of the shift shifting block (12) according to the abnormal angle;
judging whether the abnormal distance is larger than a first set value or not;
when the abnormal distance is larger than the first set value, executing a step of correcting the gear shifting angle into the correction angle according to the abnormal angle;
the step of executing the correction of the shift angle to the correction angle according to the abnormal angle further includes:
recording the abnormal angle and the abnormal times;
judging whether the abnormal times are larger than a second set value or not;
and when the abnormal times are larger than the second set value, calculating the sum of the recorded abnormal angles divided by the abnormal times, adding a calculated value of the gear shifting angle, and taking the calculated value as the correction angle.
2. The adaptive control method for shift positions according to claim 1, characterized in that the inner wall of the shift groove (121) is a hemispherical concave groove with a radius of R, and the portion of the self-locking pressure holding member (13) pressed into the shift groove (121) is a ball with a radius of R;
the first set point is R-Z, where Z is a wear threshold.
3. The shift position adaptive control method according to any one of claims 1-2, characterized in that a shift driving member (16) of the shift actuator is configured to rotate the shift knob (11) by the shift angle, and to de-energize the power supply after rotating the shift angle;
after the step of detecting the abnormal angle that continues to rotate after the shift dial (11) rotates by the shift angle, the control method further includes:
detecting an abnormal duration between the moment when the gear shifting driving piece (16) is powered off and the moment when the gear shifting head (11) starts to rotate continuously;
and correcting the abnormal angle according to the abnormal duration.
4. The shift position adaptive control method according to claim 3, wherein the step of correcting the abnormal angle in accordance with the abnormal duration includes:
and reading an abnormal duration-angle value comparison table, and increasing the numerical value of the abnormal angle, wherein the increased numerical value is the angle value corresponding to the abnormal duration.
5. A gear shift actuator, characterized in that the gear shift position self-adaptive control method according to any one of claims 1 to 4 is adopted, and the gear shift actuator comprises a gear shift shifting head (11), a gear shift shifting block (12), a self-locking pressure holding piece (13), a gear shift controller (15), a gear shift driving piece (16) and an angle sensor (17) which are in communication connection with the gear shift controller (15);
a gear shifting groove (121) and a gear shifting groove (122) are formed in the gear shifting block (12) and are arranged close to the self-locking pressing piece (13); one end of the gear shifting block (11) is connected with the gear shifting driving piece (16), and the other end of the gear shifting block is positioned in the gear shifting groove (121); the gear shifting driving piece (16) can drive the gear shifting head (11) to rotate by a gear shifting angle so as to drive the gear shifting block (12) to move by a gear shifting distance, so that the gear shifting action is completed by driving the gear shifting teeth (20) to move by the gear shifting block (12), and the self-locking pressing piece (13) can be pressed into the corresponding gear groove (122) when the gear shifting block (12) moves by the gear shifting distance;
the angle sensor (17) is used for detecting an abnormal angle which continues to rotate after the gear shifting block (11) rotates the gear shifting angle, and the gear shifting controller (15) can correct the gear shifting angle to be a correction angle according to the abnormal angle, so that the gear shifting driving piece (16) drives the gear shifting block (11) to rotate after the correction angle, and the distance for driving the gear shifting block (12) to move is the gear shifting distance.
6. The shift actuator according to claim 5, wherein the inner wall of the shift groove (121) is a hemispherical concave groove with a radius of R, and the portion of the self-locking holding member (13) pressed into the shift groove (121) is a ball with a radius of R;
the gear shifting controller (15) can also calculate the abnormal distance of the corresponding gear shifting block (12) according to the abnormal angle; judging whether the abnormal distance is larger than a first set value or not; and when the abnormal distance is larger than the first set value, executing a step of correcting the gear shifting angle into the correction angle according to the abnormal angle, wherein the first set value is (R-Z), and Z is a wear threshold.
7. The gear shift actuator according to claim 5, characterized in that a gear shift driving member (16) of the gear shift actuator is used for driving the gear shift dial (11) to rotate the gear shift angle, and the power is cut off after the gear shift angle is rotated;
the gear shifting controller (15) can also detect an abnormal time length from the power-off time of the gear shifting driving piece (16) to the time when the gear shifting head (11) starts to rotate continuously, and correct the abnormal angle or the corrected angle according to the abnormal time length.
8. A gear change device comprising a gear change actuator according to any of claims 5-7.
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| JP5907676B2 (en) * | 2011-07-13 | 2016-04-26 | アイシン・エーアイ株式会社 | Manual transmission |
| CN103968057B (en) * | 2014-04-30 | 2016-06-01 | 长城汽车股份有限公司 | A kind of automatic transmission shift mechanism |
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| CN112096832B (en) * | 2020-10-09 | 2022-06-03 | 湖南长峰重工科技有限公司 | Wear early warning control method for automatic transmission gear shifting system |
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