CN114165586A - Automatic gearbox, gear shifting control method and device thereof and vehicle - Google Patents
Automatic gearbox, gear shifting control method and device thereof and vehicle Download PDFInfo
- Publication number
- CN114165586A CN114165586A CN202111496705.3A CN202111496705A CN114165586A CN 114165586 A CN114165586 A CN 114165586A CN 202111496705 A CN202111496705 A CN 202111496705A CN 114165586 A CN114165586 A CN 114165586A
- Authority
- CN
- China
- Prior art keywords
- voltage
- gear
- gear shifting
- sliding block
- shift
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/04—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
- F16H63/06—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
- F16H63/062—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions electric or electro-mechanical actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses an automatic gearbox, a gear shifting control method and device thereof and a vehicle, wherein the automatic gearbox comprises a gear shifting structure, and the gear shifting structure comprises a shifting fork, a gear and a gear shifting motor; the gear is provided with a ring groove, the front end of the shifting fork comprises a sliding block, and the sliding block is positioned in the ring groove; one side of the sliding block, which is contacted with the side wall of the ring groove, is provided with two conductive contacts, one of the two conductive contacts is electrically connected with an external power supply, the other contact is electrically connected with a signal detection device, and the gear shifting control method of the automatic gearbox comprises the following steps: acquiring a first displacement voltage for controlling the sliding block to move from a first position to a second position by the gear shifting motor; controlling a gear shifting motor to drive a shifting fork to move until a signal detection device receives a voltage signal; the sliding block is controlled to drive the gear to move to the gear shifting position according to the rotating voltage of the gear shifting motor and the first displacement voltage, so that the gear can be successfully shifted when the sliding block is abraded, the reliability of gear shifting control of the automatic gearbox is improved, and the gear shifting control device has important significance for driving safety.
Description
Technical Field
The embodiment of the invention relates to a gear shifting control technology, in particular to an automatic gearbox, a gear shifting control method and device of the automatic gearbox and a vehicle.
Background
In the automatic gearbox, a shifting fork pushes a sliding gear, a sliding block at the front end of the shifting fork is in direct contact with the sliding gear, an annular groove is formed in the sliding gear, the sliding block at the front end of the shifting fork can drive the gear to move in the annular groove, when the gearbox shifts gears, a gear shifting motor is controlled to rotate to drive the shifting fork to move, and the shifting fork pushes the gear to move through the sliding block, so that gear shifting and speed changing are achieved.
Because the gear is in a high-speed rotation state, and the sliding block is kept static in the rotation direction of the gear, one side of the sliding block, which is in contact with the side wall of the ring groove, is easy to wear, so that the displacement of the sliding block from the initial position to the side wall of the ring groove is increased, gear falling caused by gear hanging failure can be caused, and driving safety is threatened in severe cases.
Disclosure of Invention
The invention provides an automatic gearbox, a gear shifting control method and device of the automatic gearbox and a vehicle, and aims to guarantee successful gear shifting when a sliding block is worn.
In a first aspect, an embodiment of the present invention provides a gear shift control method for an automatic transmission, where the automatic transmission includes a gear shift structure, and the gear shift structure includes a shift fork, a gear, and a gear shift motor; the gear is provided with a ring groove, the front end of the shifting fork comprises a sliding block, the sliding block is positioned in the ring groove, and the gear shifting motor is used for controlling the shifting fork to drive the sliding block to move in the direction perpendicular to the extending direction of the ring groove so as to drive the gear to shift; one side of the sliding block, which is contacted with the side wall of the ring groove, is provided with two conductive contacts, wherein one of the contacts is electrically connected with an external power supply, and the other contact is electrically connected with a signal detection device, and the gear shifting control method of the automatic gearbox comprises the following steps:
acquiring a first displacement voltage for controlling the sliding block to move from a first position to a second position by the gear shifting motor; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position;
controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal;
and controlling the sliding block to drive the gear to move to the gear shifting position according to the rotation voltage of the gear shifting motor and the first displacement voltage.
Optionally, obtaining a first displacement voltage for controlling the slider to move from the first position to the second position by the shift motor includes:
acquiring a first calibration voltage of the gear shifting motor when the sliding block is at the first position;
acquiring a second calibration voltage of the gear shifting motor when the sliding block is at the second position;
and acquiring the first displacement voltage according to the first calibration voltage and the second calibration voltage.
Optionally, before controlling the gear shifting motor to drive the shifting fork to move, the method further includes:
acquiring a third calibration voltage of the gear shifting motor when the sliding block is located at the initial position;
judging whether the rotation voltage of the gear shifting motor is equal to a third calibration voltage or not; if so, controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal.
Optionally, the rotation voltage includes a first calibration voltage and a detection voltage;
control the gear shift motor drives the shift fork removes, still includes after signal detection device receives voltage signal:
determining the rotation voltage of the gear shifting motor as a detection voltage when the signal detection device receives a voltage signal;
and acquiring the first calibration voltage of the gear shifting motor when the sliding block is positioned at the first position.
Optionally, controlling the slider to drive the gear to move to the shift position according to the rotation voltage of the shift motor and the first displacement voltage includes:
judging whether the detection voltage is greater than the first calibration voltage or not;
if yes, controlling the sliding block to drive the gear to move to a gear shifting position according to the detection voltage and the first displacement voltage;
if not, the sliding block is controlled to drive the gear to move to the gear shifting position according to the first calibration voltage and the first displacement voltage.
Optionally, the rotation voltage comprises a detection voltage;
control the shift fork removes, still include after signal detection device receives voltage signal: acquiring the detection voltage of the gear shifting motor when the signal detection device receives a voltage signal;
controlling the slider to drive the gear to move to the shift position according to the rotation voltage of the shift motor and the first displacement voltage comprises:
and controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
Optionally, after controlling the shifting fork to move until the signal detection device receives a voltage signal, the method further includes:
acquiring the frequency of receiving the voltage signal by the signal detection device;
judging whether the times are greater than preset times or not;
if yes, acquiring the detection voltage of the gear shifting motor when the signal detection device receives a voltage signal;
controlling the slider to drive the gear to move to the shift position according to the rotation voltage of the shift motor and the first displacement voltage comprises:
and controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
In a second aspect, an embodiment of the present invention further provides a shift control device for an automatic transmission, where the automatic transmission includes a shift structure, and the shift structure includes a shift fork, a gear, and a shift motor; the gear is provided with a ring groove, the front end of the shifting fork comprises a sliding block, the sliding block is positioned in the ring groove, and the gear shifting motor is used for controlling the shifting fork to drive the sliding block to move in the direction perpendicular to the extending direction of the ring groove so as to drive the gear to shift; the slider with one side that the annular lateral wall contacted is provided with two electrically conductive contacts, one of them the contact is connected with external power source electricity, another the contact is connected with signal detection device electricity, automatic transmission's shift control device includes:
the first displacement voltage acquisition module is used for acquiring a first displacement voltage for controlling the sliding block to move from a first position to a second position by the gear shifting motor; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position;
the gear shifting motor control module is used for controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal;
and the gear shifting control module is used for controlling the sliding block to drive the gear to move to the gear shifting position according to the rotation voltage of the gear shifting motor and the first displacement voltage.
In a third aspect, an embodiment of the present invention further provides an automatic transmission, including the above-mentioned gear shift control device for an automatic transmission.
In a fourth aspect, the embodiment of the invention further provides a vehicle, which comprises the automatic gearbox.
According to the gear shifting control method of the automatic gearbox, the first displacement voltage required by the sliding block to move from the contact position of the sliding block and the side wall of the annular groove to the gear shifting position is obtained, when gear shifting control is performed, after the sliding block is determined to be in contact with the side wall of the annular groove, the gear shifting motor is controlled to rotate according to the first displacement voltage, so that the gear shifting motor can drive the gear to move to the gear shifting position through the shifting fork to complete gear shifting, even if one side of the sliding block in contact with the side wall of the annular groove is abraded, gear shifting can be successfully completed, the reliability of gear shifting control of the automatic gearbox is improved, and the gear shifting control method has important significance for driving safety.
Drawings
Fig. 1 is a schematic structural diagram of an automatic transmission according to an embodiment of the present invention;
FIG. 2 is a flow chart of a shift control method for an automatic transmission provided in accordance with an embodiment of the present invention;
FIG. 3 is a flow chart of another method of controlling a shift of an automatic transmission according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method of controlling a shift of an automatic transmission according to an embodiment of the present invention;
FIG. 5 is a flowchart of a method of controlling a shift of an automatic transmission according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a shift control device of an automatic transmission according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of an automatic transmission according to an embodiment of the present invention, and as shown in fig. 1, the automatic transmission includes a shift structure 10, where the shift structure 10 includes a shift fork 20, a gear 30, and a shift motor 40; the gear 30 is provided with a ring groove 31, the front end of the shifting fork 20 comprises a sliding block 21, the sliding block 21 is positioned in the ring groove 31, and the shifting motor 40 is used for controlling the shifting fork 20 to drive the sliding block 21 to move in a direction (X direction) perpendicular to the extending direction of the ring groove 31 so as to drive the gear 30 to shift; the side of the slider 21 contacting the side wall of the ring groove 31 is provided with two conductive contacts a and b, wherein one contact a is electrically connected with the external power source 50, and the other contact b is electrically connected with the signal detection device 60.
Specifically, in the process of shifting, the gear 30 rotates at a high speed around the gear shaft 70, and the shifting motor 40 can push the shifting fork shaft 22 through a ball screw (not shown in the figure), so that the shifting fork shaft 22 can drive the shifting fork 20 to move, the sliding block 21 at the front end of the shifting fork 20 can move along the X direction, and when the shifting fork is moved to a position contacting with the side wall of the ring groove 31, the ring groove 31 can be driven to move along the X direction together until the shifting fork is moved to the shifting position to complete shifting. The side of the sliding block 21 contacting the side wall of the ring groove 31 is provided with two conductive contacts (contact a and contact b), one of the contacts (for example, contact a) is electrically connected with the external power source 50 and receives an electrical signal provided by the external power source 50, and the other contact (for example, contact b) is electrically connected with the signal detection device 60, when the shifting fork 20 drives the sliding block 21 to move to a position contacting the side wall of the ring groove 31, the contact a and the contact b are conducted due to contact with the side wall of the ring groove 31, that is, the contact a and the contact b are electrically connected through the side wall of the ring groove 31, at this time, the electrical signal provided by the external power source 50 can be transmitted to the signal detection device 60 through the contact a, the side wall of the ring groove 31 and the contact b, that is, when the signal detection device 60 receives the electrical signal, it can be determined that the sliding block 21 contacts the side wall of the ring groove 31. Illustratively, in order to avoid the connecting contact a and the lead wire of the external power source 50 and the connecting contact b and the lead wire of the signal detection device 60 from influencing the contact between the slide block 21 and the side wall of the ring groove 31, and to avoid the contact between the slide block 21 and the side wall of the ring groove 31, since the rotation of the gear 30 causes the wire to wear and even break, two conductive contacts (contact c and contact d) may be provided on the exposed side of the slider 21, for example, as shown in fig. 1, contact c and contact d may be provided on the side of the slider 21 facing away from the bottom of the ring groove 21, so that the contact c is electrically connected to the contact a inside the slider 21, the contact d is electrically connected to the contact b inside the slider 21, the contact c is electrically connected to the external power source 50, the contact d is electrically connected to the signal detecting device 60, thus, the electrical connection between the contact a and the external power source 50 and the electrical connection between the contact b and the signal detection device 60 can be achieved.
Based on the structure of the automatic transmission, embodiments of the present invention provide a gear shift control method for an automatic transmission, which can ensure successful gear shift under the condition of slider wear, and the gear shift control method for the automatic transmission can be executed by using the gear shift control device for the automatic transmission provided by embodiments of the present invention, and the gear shift control device for the automatic transmission is implemented by software and/or hardware, and can be integrated into the automatic transmission provided by embodiments of the present invention.
Fig. 2 is a flowchart of a shift control method for an automatic transmission according to an embodiment of the present invention, and as shown in fig. 2, the shift control method for an automatic transmission includes:
and S110, acquiring a first displacement voltage for moving the shift motor control slider from the first position to the second position.
The first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position.
Specifically, before the vehicle leaves the factory, the rotation voltages of the shift motors corresponding to the sliding blocks at the positions when the automatic transmission is in the initial state are calibrated, and then the voltage required for the sliding blocks to move from the first position to the second position is also a known calibration value, namely, the first displacement voltage can be determined according to the voltage difference between the calibration rotation voltage of the shift motor at the position where the sliding blocks are just in contact with the side wall of the ring groove and the calibration rotation voltage of the shift motor at the position where the sliding blocks are located when the gear is at the shift position.
For example, referring to fig. 1, the rotation voltage of the shift motor 40 when the sliding member 21 just contacts the side wall of the ring groove 31 can be recorded as a first calibration voltage, and the rotation voltage of the shift motor 40 when the gear 30 is at the shift position can be recorded as a second calibration voltage; acquiring a first calibration voltage of the gear shifting motor 40 when the sliding block 21 just contacts with the side wall of the ring groove 31; acquiring a second calibration voltage of the gear shifting motor 40 when the gear 30 moves to the gear shifting position; firstly, acquiring a first calibration voltage of a gear shifting motor when a sliding block is at a first position, acquiring a second calibration voltage of the gear shifting motor when the sliding block is at a second position, and acquiring a first displacement voltage according to the first calibration voltage and the second calibration voltage; for example, the second nominal voltage and the first nominal voltage may be subtracted from each other, and the result of the subtraction may be used as the first displacement voltage.
And S120, controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal.
And S130, controlling the sliding block to drive the gear to move to the gear shifting position according to the rotation voltage of the gear shifting motor and the first displacement voltage.
Specifically, when the automatic transmission is in an initial state, if a gear shift is to be performed, a voltage signal is first provided to the gear shift motor 40, so that the gear shift motor 40 rotates to drive the shifting fork 20 to move until the signal detection device 60 receives the voltage signal, which indicates that the sliding block 21 is in contact with the side wall of the annular groove 31 at this time; on the basis of the rotation voltage of the shift motor 40, a first displacement voltage is provided to the shift motor 40, so that the shift motor 40 continues to drive the shift fork 20 to move according to the first displacement voltage, and the shift fork 20 drives the gear 30 to move to a shift position through the slider 21 at the front end of the shift fork 20, thereby completing the gear shifting. So, confirm slider 21 and annular 31 lateral wall contact back again according to first displacement voltage control gear shifting motor 40 and rotate, make gear shifting motor 40 drive gear 30 through shift fork 20 and remove to the position of shifting and accomplish the gear shift for also can successfully accomplish the gear shift under the wearing and tearing condition appears in the one side of slider 21 annular 31 lateral wall contact, improved automatic transmission gear shift control's reliability, have important meaning to driving safety.
According to the gear shifting control method of the automatic gearbox, the first displacement voltage required by the sliding block to move from the contact position of the sliding block and the side wall of the annular groove to the gear shifting position is obtained, when gear shifting control is performed, after the sliding block is determined to be in contact with the side wall of the annular groove, the gear shifting motor is controlled to rotate according to the first displacement voltage, so that the gear shifting motor can drive the gear to move to the gear shifting position through the shifting fork to complete gear shifting, gear shifting can still be successfully completed under the condition that the side, in contact with the side wall of the annular groove, of the sliding block is abraded, the reliability of gear shifting control of the automatic gearbox is improved, and the gear shifting control method has important significance for driving safety.
Optionally, fig. 3 is a flowchart of another shift control method for an automatic transmission according to an embodiment of the present invention, and as shown in fig. 3, the shift control method for the automatic transmission includes:
s210, acquiring a first displacement voltage of the shifting motor control slider moving from a first position to a second position; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position.
And S220, acquiring a third calibration voltage of the gear shifting motor when the sliding block is located at the initial position.
S230, judging whether the rotation voltage of the gear shifting motor is equal to a third calibration voltage or not; if yes, go to S240.
And S240, controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal.
Specifically, a third calibration voltage may be obtained when the slider is at the initial position, where the initial position may be a certain position where the slider remains in a static state in the ring groove before shifting gears, and the rotation voltage of the shift motor corresponding to the certain position may be calibrated as the third calibration voltage, and when shifting gears, it is first determined whether the rotation voltage of the shift motor is equal to the third calibration voltage, and if it is determined that the rotation voltage of the shift motor is equal to the third calibration voltage, it may be determined that the slider is at the initial position, so that the shift motor may be controlled to drive the shift fork to move to shift gears on the basis of determining that the rotation voltage of the shift motor is equal to the third calibration voltage; if the rotating voltage of the gear shifting motor is not equal to the third calibration voltage, the sliding block is not at the initial position at the moment, the rotating voltage of the gear shifting motor can be adjusted to be equal to the third calibration voltage, namely, the sliding block is adjusted to the initial position, and then the gear shifting motor is controlled to drive the shifting fork to move until the signal detection device receives a voltage signal.
And S250, determining that the rotation voltage of the gear shifting motor is the detection voltage when the signal detection device receives the voltage signal.
And S260, acquiring a first calibration voltage of the gear shifting motor when the sliding block is located at the first position.
S270, judging whether the detection voltage is larger than a first calibration voltage or not; if yes, go to S280; if not, go to S290.
And S280, controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
And S290, controlling the sliding block to drive the gear to move to the gear shifting position according to the first calibration voltage and the first displacement voltage.
Specifically, in the process of shifting, if the signal detection device receives a voltage signal, it indicates that the slider is in contact with the side wall of the ring groove at the moment, and compares the detection voltage of the shift motor at the moment with the first calibration voltage of the shift motor when the slider is in contact with the ring groove, which is stored in the system. On the other hand, the gear shifting motor can be controlled to rotate according to the comparison result of the detection voltage and the first calibration voltage to ensure that the gear shifting can be successfully carried out, for example, when the detection voltage is equal to the first calibration voltage, the gear shifting motor can be directly controlled to rotate according to the first calibration voltage and the first displacement voltage, namely, the first displacement voltage is superposed on the first calibration voltage, so that the gear shifting motor drives the shifting fork to move under the control of the first calibration voltage, and the gear is driven to move to the gear shifting position through the sliding block at the front end of the shifting fork to complete gear shifting; when the detection voltage is greater than the first calibration voltage, the gear shifting motor is controlled to rotate according to the detection voltage and the first displacement voltage, namely the first displacement voltage is superposed on the detection voltage, so that the gear shifting motor drives the shifting fork to move under the voltage control, and the sliding block at the front end of the shifting fork drives the gear to move to the gear shifting position to complete gear shifting.
Optionally, fig. 4 is a flowchart of a shift control method for an automatic transmission according to an embodiment of the present invention, and as shown in fig. 4, the shift control method for an automatic transmission includes:
s310, acquiring a first displacement voltage of the shifting motor control slider moving from a first position to a second position; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position.
And S320, controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal.
S330, acquiring the detection voltage of the gear shifting motor when the signal detection device receives the voltage signal.
And S340, controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
Specifically, the first shift voltage can be superposed on the detection voltage of the shift motor to control the shift motor when the signal detection device receives the voltage signal every time, so that the shift control process can be simplified on the basis of ensuring that the shift can be successfully performed.
Optionally, fig. 5 is a flowchart of a shift control method for an automatic transmission according to an embodiment of the present invention, and as shown in fig. 5, the shift control method for an automatic transmission includes:
s410, acquiring a first displacement voltage for the shift motor to control the sliding block to move from a first position to a second position; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position.
And S420, controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal.
And S430, acquiring the times of receiving the voltage signal by the signal detection device.
S440, judging whether the frequency is greater than a preset frequency; if yes, go to S450.
And S450, acquiring the detection voltage of the gear shifting motor when the signal detection device receives the voltage signal.
And S460, controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
Specifically, before the automatic transmission or the vehicle leaves the factory, the shift control process may be tested, and it may be detected how long the automatic transmission is used and the wear amount of the slider, or it may be detected how many times the shift process is performed and the wear amount of the slider may be detected, so that the wear amount of the slider may be directly compensated by voltage compensation after the preset number of times, for example, if it is determined during the test that the wear amount of the slider is Δ L after the automatic transmission passes through the nth shift process, it may be directly compensated to the shift control voltage of the shift motor by directly compensating the rotational voltage corresponding to the Δ L when the number of times the signal detection device receives the voltage signal is accumulated to N during the actual shift process, so as to ensure the nth shift process is completed smoothly, so that the voltage compensation may be directly performed according to the preset number of times, the voltage compensation judgment is not needed to be carried out during each gear shifting, and the gear shifting control method is simplified on the basis of ensuring the gear shifting process.
Based on the same inventive concept, the embodiment of the invention also provides a gear shifting control device of the automatic gearbox, which can ensure successful gear shifting under the condition of sliding block abrasion, can be used for executing the gear shifting control method of the automatic gearbox provided by the embodiment of the invention, and is realized by software and/or hardware.
Alternatively, fig. 6 is a schematic structural diagram of a shift control device of an automatic transmission according to an embodiment of the present invention, and referring to fig. 1, the automatic transmission includes a shift structure 10, and the shift structure 10 includes a shift fork 20, a gear 30, and a shift motor 40; the gear 30 is provided with a ring groove 31, the front end of the shifting fork 20 comprises a sliding block 21, the sliding block 21 is positioned in the ring groove 31, and the shifting motor 40 is used for controlling the shifting fork 20 to drive the sliding block 21 to move in a direction (X direction) perpendicular to the extending direction of the ring groove 31 so as to drive the gear 30 to shift; as shown in fig. 6, the shift control device of the automatic transmission includes two conductive contacts a and b disposed on a side of the slider 21 contacting with the side wall of the ring groove 31, one of the contacts a is electrically connected to the external power source 50, and the other contact b is electrically connected to the signal detection device 60: a first displacement voltage obtaining module 100, configured to obtain a first displacement voltage at which the shift motor 40 controls the slider 21 to move from the first position to the second position; the first position is the position of the slide block 21 when the slide block 21 just contacts with the side wall of the annular groove 31, and the second position is the position of the slide block 21 when the gear 30 is at the gear shifting position; the gear shifting motor control module 200 is used for controlling the gear shifting motor 40 to drive the shifting fork to move until the signal detection device 60 receives a voltage signal; and a shift control module 300 for controlling the slider 21 to move the gear 30 to the shift position according to the rotation voltage of the shift motor 40 and the first displacement voltage.
The gear shifting control device of the automatic gearbox provided by the embodiment of the invention can still successfully complete gear shifting under the condition that one side of the sliding block, which is in contact with the side wall of the annular groove, is abraded, so that the reliability of gear shifting control of the automatic gearbox is improved, and the gear shifting control device has important significance for driving safety.
Optionally, the first displacement voltage obtaining module includes a first calibration voltage obtaining unit, configured to obtain a first calibration voltage of the shift motor when the slider is at the first position; the second calibration voltage acquisition unit is used for acquiring a second calibration voltage of the gear shifting motor when the sliding block is at a second position; and the first displacement voltage acquisition unit is used for acquiring a first displacement voltage according to the first calibration voltage and the second calibration voltage.
Optionally, the shift control device of the automatic transmission further includes a third calibration voltage obtaining module, configured to obtain a third calibration voltage of the shift motor when the slider is located at the initial position before the shift motor control module controls the shift motor to drive the shift fork to move; the first judgment module is used for judging whether the rotation voltage of the gear shifting motor is equal to a third calibration voltage or not; if so, the gear shifting motor is controlled by the gear shifting motor control module to drive the shifting fork to move until the signal detection device receives a voltage signal.
Optionally, the rotation voltage includes a first calibration voltage and a detection voltage, and the shift control device of the automatic transmission further includes a detection voltage determining module, configured to determine that the rotation voltage of the shift motor is the detection voltage when the signal detection device receives the voltage signal; the first calibration voltage acquisition module is used for acquiring a first calibration voltage of the gear shifting motor when the sliding block is in contact with the side wall of the ring groove.
Optionally, the shift control module includes a first determining unit, configured to determine whether the detected voltage is greater than a first calibration voltage; the first gear shifting control unit is used for controlling the sliding block to drive the gear to move to a gear shifting position according to the detection voltage and the first displacement voltage when the first judgment unit determines that the detection voltage is greater than the first calibration voltage; and the second gear shifting control unit is used for controlling the sliding block to drive the gear to move to the gear shifting position according to the first calibration voltage and the first displacement voltage when the first judgment unit determines that the detection voltage is not greater than the first calibration voltage.
Optionally, the rotation voltage includes a detection voltage, and the shift control device of the automatic transmission further includes a first detection voltage acquisition module, configured to control a shifting fork to move in the shift motor control module until the signal detection device receives a voltage signal, and acquire the detection voltage of the shift motor when the signal detection device receives the voltage signal; the gear shifting control module comprises a third gear shifting control unit which is used for controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
Optionally, the shift control device of the automatic transmission further includes a frequency acquisition module, configured to acquire the frequency of receiving the voltage signal by the signal detection device after the shift motor control module controls the shift fork to move until the signal detection device receives the voltage signal; the second judgment module is used for judging whether the times are greater than the preset times; the second detection voltage acquisition module is used for acquiring the detection voltage of the gear shifting motor when the signal detection device receives the voltage signal when the second judgment module determines that the times are more than the preset times; the gear shifting control module comprises a fourth gear shifting control unit, and the fourth gear shifting control unit is used for controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
Based on the same inventive concept, an embodiment of the present invention further provides an automatic transmission, including the shift control device of the automatic transmission provided in any embodiment of the present invention, so that the automatic transmission provided in the embodiment of the present invention includes technical features of the shift control device of the automatic transmission provided in any embodiment of the present invention, and can achieve beneficial effects of the shift control device of the automatic transmission provided in the embodiment of the present invention, and the same points can refer to the above description of the shift control device of the automatic transmission provided in the embodiment of the present invention, and are not described herein again.
The embodiment of the invention also provides a vehicle comprising the automatic gearbox provided by any embodiment of the invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A gear shifting control method of an automatic gearbox comprises a gear shifting structure, wherein the gear shifting structure comprises a shifting fork, a gear and a gear shifting motor; the gear is provided with a ring groove, the front end of the shifting fork comprises a sliding block, the sliding block is positioned in the ring groove, and the gear shifting motor is used for controlling the shifting fork to drive the sliding block to move in the direction perpendicular to the extending direction of the ring groove so as to drive the gear to shift; the slider with one side that the annular lateral wall contacted is provided with two electrically conductive contacts, one of them the contact is connected with external power source electricity, another the contact is connected with signal detection device electricity, its characterized in that includes:
acquiring a first displacement voltage for controlling the sliding block to move from a first position to a second position by the gear shifting motor; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position;
controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal;
and controlling the sliding block to drive the gear to move to the gear shifting position according to the rotation voltage of the gear shifting motor and the first displacement voltage.
2. The shift control method of an automatic transmission according to claim 1, wherein obtaining a first shift voltage at which the shift motor controls the slider to move from the first position to the second position includes:
acquiring a first calibration voltage of the gear shifting motor when the sliding block is at the first position;
acquiring a second calibration voltage of the gear shifting motor when the sliding block is at the second position;
and acquiring the first displacement voltage according to the first calibration voltage and the second calibration voltage.
3. The shift control method for an automatic transmission according to claim 1, further comprising, before controlling the shift motor to move the shift fork, the steps of:
acquiring a third calibration voltage of the gear shifting motor when the sliding block is located at the initial position;
judging whether the rotation voltage of the gear shifting motor is equal to a third calibration voltage or not; if so, controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal.
4. A shift control method of an automatic transmission according to claim 3, characterized in that said rotation voltage comprises a first calibration voltage and a detection voltage;
control the gear shift motor drives the shift fork removes, still includes after signal detection device receives voltage signal:
determining the rotation voltage of the gear shifting motor as a detection voltage when the signal detection device receives a voltage signal;
and acquiring the first calibration voltage of the gear shifting motor when the sliding block is positioned at the first position.
5. The shift control method of an automatic transmission according to claim 4, wherein controlling the slider to move the gear to the shift position in accordance with the rotation voltage of the shift motor and the first displacement voltage includes:
judging whether the detection voltage is greater than the first calibration voltage or not;
if yes, controlling the sliding block to drive the gear to move to a gear shifting position according to the detection voltage and the first displacement voltage;
if not, the sliding block is controlled to drive the gear to move to the gear shifting position according to the first calibration voltage and the first displacement voltage.
6. The shift control method of an automatic transmission according to claim 1, characterized in that the rotation voltage includes a detection voltage;
control the shift fork removes, still include after signal detection device receives voltage signal: acquiring the detection voltage of the gear shifting motor when the signal detection device receives a voltage signal;
controlling the slider to drive the gear to move to the shift position according to the rotation voltage of the shift motor and the first displacement voltage comprises:
and controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
7. The shift control method of an automatic transmission according to claim 1, further comprising, after controlling the shift fork to move until the signal detection device receives a voltage signal:
acquiring the frequency of receiving the voltage signal by the signal detection device;
judging whether the times are greater than preset times or not;
if yes, acquiring the detection voltage of the gear shifting motor when the signal detection device receives a voltage signal;
controlling the slider to drive the gear to move to the shift position according to the rotation voltage of the shift motor and the first displacement voltage comprises:
and controlling the sliding block to drive the gear to move to the gear shifting position according to the detection voltage and the first displacement voltage.
8. A gear shifting control device of an automatic gearbox comprises a gear shifting structure, wherein the gear shifting structure comprises a shifting fork, a gear and a gear shifting motor; the gear is provided with a ring groove, the front end of the shifting fork comprises a sliding block, the sliding block is positioned in the ring groove, and the gear shifting motor is used for controlling the shifting fork to drive the sliding block to move in the direction perpendicular to the extending direction of the ring groove so as to drive the gear to shift; the slider with one side that the annular lateral wall contacted is provided with two electrically conductive contacts, one of them the contact is connected with external power source electricity, another the contact is connected with signal detection device electricity, its characterized in that includes:
the first displacement voltage acquisition module is used for acquiring a first displacement voltage for controlling the sliding block to move from a first position to a second position by the gear shifting motor; the first position is the position of the sliding block when the sliding block just contacts with the side wall of the annular groove, and the second position is the position of the sliding block when the gear is at a gear shifting position;
the gear shifting motor control module is used for controlling the gear shifting motor to drive the shifting fork to move until the signal detection device receives a voltage signal;
and the gear shifting control module is used for controlling the sliding block to drive the gear to move to the gear shifting position according to the rotation voltage of the gear shifting motor and the first displacement voltage.
9. An automatic transmission characterized by comprising the shift control device of an automatic transmission according to claim 8.
10. A vehicle characterized by comprising the automatic transmission of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496705.3A CN114165586B (en) | 2021-12-09 | 2021-12-09 | Automatic gearbox, gear shifting control method and device thereof and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111496705.3A CN114165586B (en) | 2021-12-09 | 2021-12-09 | Automatic gearbox, gear shifting control method and device thereof and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114165586A true CN114165586A (en) | 2022-03-11 |
| CN114165586B CN114165586B (en) | 2023-01-24 |
Family
ID=80484777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111496705.3A Active CN114165586B (en) | 2021-12-09 | 2021-12-09 | Automatic gearbox, gear shifting control method and device thereof and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114165586B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088317A (en) * | 1992-11-25 | 1994-06-22 | 易通公司 | The computer controlled method of calibrating of X-Y mobile device |
| JP2005308042A (en) * | 2004-04-20 | 2005-11-04 | Honda Motor Co Ltd | Control device for actuator |
| CN102052454A (en) * | 2009-11-09 | 2011-05-11 | 通用汽车环球科技运作公司 | Electromagnetic synchronizer actuating system |
| CN112096832A (en) * | 2020-10-09 | 2020-12-18 | 北京长峰天通科技有限公司 | Wear early warning control method for automatic transmission gear shifting system |
| CN113048230A (en) * | 2021-03-09 | 2021-06-29 | 中国矿业大学(北京) | AMT gear shifting process control method based on gear shifting sliding block abrasion prediction |
| CN113586717A (en) * | 2021-09-29 | 2021-11-02 | 潍柴新能源科技有限公司 | Control method of transmission, transmission and vehicle |
-
2021
- 2021-12-09 CN CN202111496705.3A patent/CN114165586B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088317A (en) * | 1992-11-25 | 1994-06-22 | 易通公司 | The computer controlled method of calibrating of X-Y mobile device |
| JP2005308042A (en) * | 2004-04-20 | 2005-11-04 | Honda Motor Co Ltd | Control device for actuator |
| CN102052454A (en) * | 2009-11-09 | 2011-05-11 | 通用汽车环球科技运作公司 | Electromagnetic synchronizer actuating system |
| CN112096832A (en) * | 2020-10-09 | 2020-12-18 | 北京长峰天通科技有限公司 | Wear early warning control method for automatic transmission gear shifting system |
| CN113048230A (en) * | 2021-03-09 | 2021-06-29 | 中国矿业大学(北京) | AMT gear shifting process control method based on gear shifting sliding block abrasion prediction |
| CN113586717A (en) * | 2021-09-29 | 2021-11-02 | 潍柴新能源科技有限公司 | Control method of transmission, transmission and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114165586B (en) | 2023-01-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107314107B (en) | The control device of speed changer and the control method of speed changer | |
| CN105840810B (en) | A kind of off-gear of double-clutch automatic gearbox judges and processing method | |
| CN1201138C (en) | Fault diagnostic method and system of speed variator output shaft RPM sensor | |
| CN101107530B (en) | Rotation speed detecting apparatus and automatic transmission controller having the apparatus | |
| FR2764031A1 (en) | METHOD AND DEVICE FOR CONTROLLING AN AUTOMATED GEARBOX | |
| CN110792765B (en) | Self-learning control method and system for gear position of gearbox | |
| FR2604408A1 (en) | POWER-DRIVEN POWER STEERING SYSTEM | |
| CN114165586B (en) | Automatic gearbox, gear shifting control method and device thereof and vehicle | |
| EP1177925A2 (en) | Power window system with control unit for detecting foreign object caught in car window | |
| CN100470075C (en) | Control device and method for AMT vehicle control clutch engaging | |
| KR20030071851A (en) | Method for recognition of the synchronised position and the end of the synchronisation process in an automatic gearbox | |
| US20060069524A1 (en) | Malfunction detector for rotation sensor | |
| JP2005172119A (en) | Range position detection switch | |
| US20170138469A1 (en) | Automatic calibration of position thresholds for a gear shift position sensor | |
| CN110566663A (en) | Method for detecting signal clamping stagnation fault of shifting fork position sensor | |
| JP2005172118A (en) | Range position detection device and its control program for automatic transmission | |
| WO2014098312A1 (en) | Continuously variable transmission capable of detecting malfunction occurrence location | |
| CN212123156U (en) | Electric tool | |
| CN114542705A (en) | Method for acquiring extreme position of hub type gear shifting mechanism of automatic transmission | |
| US4992964A (en) | Control apparatus and method for preventing seizure in a spindle apparatus of a machine tool | |
| JP2501110B2 (en) | Select position detection device for automatic transmission | |
| KR0182735B1 (en) | Power control method of automatic ice making apparatus | |
| WO2022196250A1 (en) | Shift-stage switching device | |
| JPH0193699A (en) | Lubricating oil monitoring device | |
| KR100410756B1 (en) | METHOD FOR 3Th HOLDING CONTROL OF AUTOMATIC TRANSMISSION IN VEHICLE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |