CN108413025B - Self-adaptive automatic speed changing gearbox control system and control method thereof - Google Patents
Self-adaptive automatic speed changing gearbox control system and control method thereof Download PDFInfo
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- CN108413025B CN108413025B CN201810170929.7A CN201810170929A CN108413025B CN 108413025 B CN108413025 B CN 108413025B CN 201810170929 A CN201810170929 A CN 201810170929A CN 108413025 B CN108413025 B CN 108413025B
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- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
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- 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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
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- 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
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- 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
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H2059/366—Engine or motor speed
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- 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
- F16H2061/0075—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 characterised by a particular control method
- F16H2061/0087—Adaptive control, e.g. the control parameters adapted by learning
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- 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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention provides a self-adaptive automatic speed-changing and gear-shifting intelligent control system, which comprises a main driving motor, a gear-shifting actuator, an intelligent controller and a gearbox, wherein the main driving motor is connected with the gear-shifting actuator; the main driving motor is connected with the gearbox through a spline, the gear shifting actuator is connected with the gearbox, and the intelligent controller controls the gear shifting operation of the gear shifting actuator; the intelligent controller includes: the system comprises an information acquisition unit, a logic processing unit, a gear shifting driving circuit and a main motor driving circuit; the vehicle driving data, the power source data and the road condition data are input into the logic processing unit through the information acquisition unit, and the logic processing unit processes the information to obtain a target gear suitable for the current main driving motor; the gear shifting driving circuit is connected with a gear shifting actuator and adaptively adjusts the position of a gear shifting combination ring in the gear shifting actuator to move to a target gear; the main motor driving circuit is connected with the main driving motor, and the main motor driving circuit adaptively controls the rotating speed of the main driving motor to be matched with the gear shifting combination ring to be switched to a target gear according to the target gear.
Description
Technical Field
The invention belongs to the technical field of vehicles, relates to a vehicle gear shifting control technology, and particularly relates to a self-adaptive automatic transmission control system and a control method thereof.
Background
Electric vehicles are more and more favored by consumers, and in order to respond to national environmental protection policies of energy conservation, emission reduction and environmental protection, the market share of electric vehicles is gradually increased. The gearbox is an important component in a vehicle transmission system, and the performance of the gearbox directly influences the performance of the transmission system and the driving experience and safety performance of vehicle running.
Transmission systems of existing fuel-powered vehicles may be classified into manual transmission systems and automatic transmission systems. In a classical manual transmission system, the shift rod is directly connected to the transmission so that the driver directly manipulates the transmission. In an automatic transmission system, when a driver manipulates a shift lever in a pull-out sequence P, R, N and a D-range position, the transmission is automatically operated to perform a shift. The process of shifting gears through the automatic transmission comprises four stages of power original torque unloading, transmission speed regulation, target gear shifting and power source torque recovery. The torque recovery rate of the power source torque recovery phase affects two contradictory performance indicators of the vehicle: dynamic and smooth. That is, the smaller the torque recovery rate, the better the smoothness and the worse the dynamic performance; conversely, the greater the torque recovery rate, the better the dynamics, and the worse the smoothness.
Although the control performance of various aspects of the electric vehicle is more and more perfect with the development of the electric vehicle technology, similar technical problems still exist. For example, the conventional gear shift control method for an electric vehicle is an AMT (automated mechanical Transmission). Traditional AMT car cuts off whole car power transmission through the separation of clutch at the in-process of shifting, rely on the slip friction of synchronizer ring to accomplish the synchronization process and realize shifting, also cancelled the clutch between driving motor and gearbox, through spline lug connection, structurally simplified at any time, but make driving motor at the automatic process of shifting, gearbox and electric actuator's coordinated control is very complicated, produce noise and shift impact easily at the in-process of shifting, the ride comfort and riding comfort of shifting of vehicle have been influenced, the driving safety in the driver bestriding driving has also been influenced.
At present, although related technologies are proposed to solve the disadvantages of the automatic shift control system, for example, corresponding gear shifting is performed according to actual driving road conditions, including different road conditions such as start/stop, uphill/downhill, and the like. However, for the misoperation of the driver during driving, such as gear shifting when the electric switch is not released, and the error driving behavior which is not suitable for the current road condition, the driver and the vehicle can not be corrected according to the error operation, which may cause serious accidents and loss which is difficult for the driver or others to compensate.
Disclosure of Invention
The present invention is directed to a transmission and a control method thereof, which can combine the current road condition information and the power source data to correct the adaptive automatic transmission. The invention provides a self-adaptive automatic speed-changing and gear-shifting intelligent control system, which comprises a main driving motor, a gear-shifting actuator, an intelligent controller and a gearbox; the main driving motor is connected with the gearbox through a spline, the gear shifting actuator is connected with the gearbox, and the intelligent controller controls the gear shifting operation of the gear shifting actuator; wherein, the intelligent control ware includes: the system comprises an information acquisition unit, a logic processing unit, a gear shifting driving circuit and a main motor driving circuit; vehicle driving data, power source data and road condition data are input into the logic processing unit through the information acquisition unit, and the logic processing unit processes information to obtain a target gear suitable for a current main driving motor; the gear shifting driving circuit is connected with the gear shifting actuator, and the gear shifting driving circuit adaptively adjusts the position of a gear shifting combination ring in the gear shifting actuator to move to a target gear according to the target gear; the main motor driving circuit is connected with the main driving motor, and the main motor driving circuit adaptively controls the rotating speed of the main driving motor to be matched with the gear shifting combination ring to be switched to a target gear according to the target gear.
In the adaptive automatic transmission and shift intelligent control system provided by the invention, the information acquisition unit comprises:
collecting vehicle driving data: the system comprises a gear sensor for acquiring a current gear position and a speed sensor for acquiring a current running speed and acceleration;
collecting power source data: the motor Hall sensor is used for acquiring the rotating speed of the main driving motor, and the current acquisition sensor is used for acquiring the stator current of the main driving motor;
acquiring road condition data: the system comprises a geographic locator used for obtaining the current geographic position and a road condition receiver used for obtaining the average driving speed of the current geographic position.
In the adaptive automatic speed-changing and gear-shifting intelligent control system, the current geographic position acquired by the geographic locator comprises intersection information, speed limit information, traffic sign information, pedestrian crossing line information and gradient information.
In the adaptive automatic speed-changing and gear-shifting intelligent control system provided by the invention, the logic processing unit comprises a vehicle condition judging module for judging the current vehicle condition of a vehicle, a motor judging module for judging the working state of a main driving motor and a target gear judging module for judging a target gear suitable for the current running condition; wherein, still include: the gear correction module is connected with the target gear judgment module and used for correcting a target gear.
In the self-adaptive automatic speed-changing and gear-shifting intelligent control system provided by the invention, the gearbox comprises a gear-shifting group driving gear, a high-speed gear driven gear and a low-speed gear driven gear, bearings and bearings are respectively arranged at bearing positions at two ends of the gear-shifting group driving gear, and the bearings are respectively pressed on a gearbox reverse shell and a gearbox front shell; the high-speed driven gear and the low-speed driven gear are respectively positioned on the gear shifting group driving gear through snap springs, and the high-speed driven gear and the low-speed driven gear can freely rotate on the gear shifting group driving gear; the gear shifting combination ring is connected to the gear shifting group driving gear through a spline, and the gear shifting combination ring and the gear shifting group driving gear rotate together or move left and right on the gear shifting group driving gear; a gear shifting pull rod penetrates through a notch on the gear shifting group driving gear and a through hole on the gear shifting pull rod in a central hole of the gear shifting group driving gear through a connecting screw on the gear shifting combination ring to be connected with the gear shifting combination ring, and the gear shifting pull rod can axially move and synchronously rotate along with the gear shifting combination ring; the gear shifting pull rod is provided with corresponding gear positioning grooves; the tail end of the driving gear of the gear shifting gear set is connected with a speed measuring magnetic ring through a key groove; and a framework oil seal pressed on the reverse shell of the gearbox is arranged on the outer side of the bearing.
In the adaptive automatic transmission and shift intelligent control system provided by the invention, the shift actuator comprises: an outer yoke, magnetic steel and a top yoke; the outer yoke is connected with the voice coil motor mounting seat through center positioning; the voice coil motor mounting seat is fixed on the gearbox reverse shell by using a screw; the magnetic steel, the top magnetic yoke and the outer magnetic yoke are concentrically positioned and connected through an aluminum sleeve; a copper sleeve is arranged in the aluminum sleeve; the gear shifting pull rod penetrates through the voice coil motor mounting seat, the aluminum sleeve, the copper sleeve and the top magnetic yoke; the bearing is positioned at the tail end of the shifting pull rod through a nut; the bearing is press-mounted in a central bearing hole of the framework; the guide plate is connected with the framework through a screw, and the guide plate presses the bearing; the coil is wound in the wire slot of the framework; the coil and the framework are arranged in a circular groove formed by the outer yoke and the magnetic steel; the copper sleeve is pressed in the guide plate; the guide auxiliary ring is sleeved on the outer yoke; the guide post is fixed on the voice coil motor mounting seat and penetrates through the guide auxiliary ring and the copper sleeve, and the guide plate can slide on the guide post through the copper sleeve; the displacement sensor is fixed on the voice coil motor mounting seat through a screw and penetrates through the guide column auxiliary ring, and the top end of a pull rod of the displacement sensor is fixed on the guide plate through a nut; the speed measuring sensor is positioned outside the speed measuring magnetic ring and fixed in the upper groove of the voice coil motor mounting seat; a groove space is formed between the voice coil motor mounting seat and the outer yoke, a circle of steel balls are arranged in the groove space, the outer sides of the steel balls are tightened through O-shaped rings or circular tension springs, and the gear shifting pull rod penetrates through the circle of steel balls; the outer shell covers the whole gear shifting execution module and is connected to the reverse shell of the gearbox.
In the adaptive automatic transmission and shift intelligent control system provided by the invention, the shift actuator comprises: an outer yoke, magnetic steel and a top yoke; the outer yoke is connected with the voice coil motor mounting seat through center positioning; the voice coil motor mounting seat is fixed on the gearbox reverse shell by using a screw; the magnetic steel, the top magnetic yoke and the outer magnetic yoke are concentrically positioned and connected through an aluminum sleeve; a copper sleeve is arranged in the aluminum sleeve; the gear shifting pull rod penetrates through the voice coil motor mounting seat, the aluminum sleeve, the copper sleeve and the top magnetic yoke; the bearing is positioned at the tail end of the shifting pull rod through a nut; the bearing is press-mounted in a central bearing hole of the framework; the guide plate is connected with the framework through a screw, and the guide plate presses the bearing; the coil is wound in the wire slot of the framework; the coil and the framework are arranged in a circular groove formed by the outer yoke and the magnetic steel; the copper sleeve is pressed in the guide plate; the guide auxiliary ring is sleeved on the outer yoke; the guide post is fixed on the voice coil motor mounting seat and penetrates through the guide auxiliary ring and the copper sleeve, and the guide plate can slide on the guide post through the copper sleeve; the displacement sensor is fixed on the voice coil motor mounting seat through a screw and penetrates through the guide column auxiliary ring, and the top end of a pull rod of the displacement sensor is fixed on the guide plate through a nut; the speed measuring sensor is positioned outside the speed measuring magnetic ring and fixed in a groove on the voice coil motor mounting seat; the steel ball installation block side is equipped with the radial round hole of evenly distributed certain quantity, just the steel ball installation block has central round hole, the steel ball dress is in the radial round hole, the pressure spring is placed in the radial round hole and is pushed down the steel ball, holding screw 34 pushes down the pressure spring and screws up on the steel ball installation block, the steel ball installation block with outer yoke concentric positioning to fix through the fix with screw in its bottom, the pull rod of shifting passes central round hole, the steel ball is in the pressure spring pressure effect pushes up down on the pull rod of shifting, works as the pull rod of shifting pulls the combination ring of shifting is in high-speed fender or when keeping off at a low speed, the steel ball inlays in the constant head tank that sets up on the pull rod of shifting.
The invention also provides an adaptive automatic speed-changing and gear-shifting intelligent control method, which comprises the following steps:
a. reading vehicle running data to obtain the current vehicle speed and the position of the current gear of the vehicle;
b. after the main driving motor is started and works stably, detecting power source data of the main driving motor, and calculating load torque;
c. reading road condition data, wherein the current geographic position comprises intersection information, speed limit information, traffic sign information, pedestrian crossing line information and gradient information;
d. adaptively calculating a target gear suitable for the current state of the main driving motor according to vehicle driving data, power source data and road condition data;
e. judging whether the current gear is in a target gear, and executing the step g if the current gear is in the target gear;
f. if the current gear is not in the target gear, driving the gear shifting combination ring to move to the target gear and enter a target gear dead zone position; the main driving motor performs small-range progressive forward and reverse movement to enable the gear shifting combination ring to be matched with a driven gear of a target gear;
g. and maintaining the stability at the target gear.
In the adaptive automatic transmission shift intelligent control method provided by the invention, the adaptively calculating a target gear suitable for the current main drive motor state comprises: when the vehicle runs to the intersection and the pedestrian crossing line, the target gear is corrected to be the low gear.
In the adaptive automatic transmission shift intelligent control method provided by the invention, the adaptively calculating a target gear suitable for the current main drive motor state comprises: and correcting the target gear to be a low gear or a high gear according to the average speed of the current road.
The invention further provides an adaptive automatic speed-changing and gear-shifting intelligent control method, which comprises the following steps: h. judging whether the gear shifting combination ring is out of gear or not; if the gear is out of gear, the gear-shifting coupling ring is directly driven to move to the original gear.
Compared with the prior art, the invention has the beneficial effects that:
1. the current vehicle running state is optimal through automatic matching of gears, the main driving motor can work in a high-efficiency state for a long time, energy can be saved, consumption can be reduced, the vehicle endurance mileage can be increased, and the service life of the main driving motor can be prolonged.
2. In the gear shifting process, the intelligent controller can control the main driving motor to accelerate or decelerate so as to meet the requirement of gear synchronization in gear shifting. The problems of difficulty in shifting, gear beating, gear shifting impact and the like in the gear shifting process of the gear shifting gear set without the synchronizer can be solved.
3. When the controller starts to work after being electrified, no matter the vehicle is in a static state or a moving state, the controller can adjust the gear to the gear position matched with the vehicle state according to the program parameters set by the single chip microcomputer through the detected vehicle speed signal and the detected gear signal.
4. The invention introduces the error operation of correcting the driver in various road conditions and the like for the first time, avoids the damage of the gearbox or the traffic accident caused by the error operation and improves the safety factor of vehicle driving.
5. Compared with a traditional synchronizer gear shifting structure, the multi-gear intelligent automatic gear shifting gearbox firstly solves the problem that the gear shifting process is free of gear beating and gear shifting impact, structurally and greatly simplifies the structure of a synchronizer gear, reduces the number of parts, reduces the failure rate and the difficulty of maintenance and assembly, and reduces the manufacturing and assembly cost of the gear.
6. Compared with the existing manual or automatic gear shifting gearbox without a synchronizer, the manual or automatic gear shifting gearbox with the same cost solves the problems of misoperation danger caused by the fact that a driver does not need to participate in gear shifting operation, and the phenomena of strong gear shifting impact feeling, gear hitting and gear mismatching during gear shifting.
7. The intelligent control system of the automatic gear shifting gearbox adopts a compiling method that various parameters participate in a control program, realizes an all-dimensional intelligent and humanized control system, and has good driving feeling and high safety coefficient.
8. The invention enables the gearbox to have the driving behavior auxiliary correction function.
Drawings
Fig. 1 shows the structure of the adaptive automatic transmission shift intelligent control system of the present invention.
Fig. 2 shows the structure of the transmission.
Fig. 3 shows the structure of the shift actuator.
Fig. 4 shows the structure of a transmission in a further embodiment.
Fig. 5 shows the structure of the intelligent controller.
FIG. 6 is a flow chart illustrating the adaptive automatic transmission shift intelligent control method of the present invention.
Detailed Description
The present invention will now be described in more detail with reference to the drawings, in which preferred embodiments of the invention are shown, and it is to be understood that those skilled in the art can modify the invention herein described while still achieving the advantageous effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
Fig. 1 is a schematic structural diagram of an adaptive automatic transmission shift intelligent control system according to the present invention. The system includes a main drive motor 100, a shift actuator 200, an intelligent controller 300, and a gearbox 400. The main driving motor 100 and the transmission case 400 are connected by a spline, and the shift actuator 200 is connected to the transmission case 400, and the shift operation of the shift actuator 200 is controlled by the intelligent controller 300.
In order to clearly describe the technical scheme of the invention, specific structures of components in specific embodiments and drawings are provided below, and the following description should not be understood as specifying and limiting the structures of the components.
As shown in fig. 2, the transmission 400 includes a shift group driving gear 3, a high-speed driven gear 4 and a low-speed driven gear 6, bearings 28 and bearings 2 are respectively disposed at two bearing positions of the shift group driving gear 3, and the bearings 28 and the bearings 2 are respectively press-fitted on a transmission counter shell 31 and a transmission front shell 32; the high-speed driven gear 4 and the low-speed driven gear 6 are respectively positioned on the shifting group driving gear 3 through snap springs, and the high-speed driven gear 4 and the low-speed driven gear 6 can freely rotate on the shifting group driving gear 3; the gear shifting combination ring 5 is connected to the gear shifting group driving gear 3 through a spline, and the gear shifting combination ring 5 and the gear shifting group driving gear 3 rotate together or move left and right on the gear shifting group driving gear 3; a shift pull rod 29 is connected with the shift combination ring 5 in a central hole of the shift group driving gear 3 through a connecting screw 30 on the shift combination ring 5, passes through a notch on the shift group driving gear 3 and a through hole on the shift pull rod 29, and the shift pull rod 29 can axially move and synchronously rotate along with the shift combination ring 5; the gear shifting pull rod 29 is provided with corresponding gear positioning grooves; the tail end of the driving gear 3 of the gear shifting gear set is connected with a speed measuring magnetic ring 8 through a key groove; and a framework oil seal 7 pressed on a reverse shell 31 of the gearbox is arranged on the outer side of the bearing 28.
As shown in fig. 2 and 3, in the embodiment of the present invention, the shift actuator 200 includes: voice coil motor mount 10, outer yoke 11, magnet steel 13, top yoke 23, shift rod 29. The outer yoke 11 is connected to the voice coil motor mounting base 10 through centering. The voice coil motor mounting base 10 is fixed on the gearbox counter shell 31 by screws 34. The magnetic steel 13, the top yoke 23 and the outer yoke 11 are concentrically positioned and connected through an aluminum sleeve 12. A copper sleeve 25 is arranged in the aluminum sleeve 12. The shift rod 29 passes through the voice coil motor mounting base 10, the aluminum sleeve 12, the copper sleeve 25 and the top yoke 23. The bearing 18 is positioned at the end of the shift rod 29 by a nut 19. The bearing 18 is pressed in a central bearing hole of the framework 17. A guide plate 21 is connected to the frame 17 by means of screws 20, said guide plate 21 pressing said bearing 18. The coil 16 is wound in a wire slot of the bobbin 17. The coil 16 and the bobbin 17 are arranged in a circular groove formed by the outer yoke 11 and the magnetic steel 13. The copper bush 25 is press-fitted into the guide plate 21. The guide auxiliary ring 24 is fitted over the outer yoke 11. The guide post 14 is fixed on the voice coil motor mounting base 10 and passes through the guide auxiliary ring 24 and the copper bush 25, and the guide plate 21 is slidable on the guide post 14 through the copper bush 25. The displacement sensor 26 is fixed on the voice coil motor mounting base 10 through a screw 36 and penetrates through the guide post auxiliary ring 24, and the top end of a pull rod of the displacement sensor 26 is fixed on the guide plate 21 through a nut 35. The speed measuring sensor 33 is positioned outside the speed measuring magnetic ring 8 and fixed in the groove on the voice coil motor mounting seat 10. A groove space is formed between the voice coil motor mounting seat 10 and the outer yoke 11, a circle of steel balls 27 are arranged in the groove space, the steel balls 27 are tightened outside the steel balls 27 through O-shaped rings or circular tension springs 9, the gear shifting pull rod 29 penetrates through the circle of steel balls 27, and the structure is that when a gear positioning groove in the gear shifting pull rod 29 moves to the position of the steel balls, the steel balls 27 can be clamped in the positioning groove, and the positioning and gear-dropping prevention effect is achieved. The outer housing 22 covers the entire shift actuator module 200 and is attached to the transmission counter housing 31.
Fig. 4 shows yet another embodiment of the present invention, wherein the shift actuator 200 comprises: outer yoke 11, magnet steel 13 and top yoke 23; the outer yoke 11 is connected with the voice coil motor mounting seat 10 through center positioning; the voice coil motor mounting base 10 is fixed on the gearbox reverse shell 31 by a screw 34; the magnetic steel 13, the top magnetic yoke 23 and the outer magnetic yoke 11 are concentrically positioned and connected through an aluminum sleeve 12; a copper sleeve 25 is arranged in the aluminum sleeve 12; the shift pull rod 29 penetrates through the voice coil motor mounting base 10, the aluminum sleeve 12, the copper sleeve 25 and the top magnetic yoke 23; the bearing 18 is positioned at the tail end of the shift pull rod 29 through a nut 19; the bearing 18 is pressed in a central bearing hole of the framework 17; a guide plate 21 is connected with the framework 17 through a screw 20, and the guide plate 21 presses the bearing 18; the coil 16 is wound in a wire slot of the framework 17; the coil 16 and the framework 17 are arranged in a circular groove formed by the outer yoke 11 and the magnetic steel 13; the copper sleeve 25 is pressed in the guide plate 21; the guide auxiliary ring 24 is sleeved on the outer yoke 11; the guide post 14 is fixed on the voice coil motor mounting base 10 and passes through the guide auxiliary ring 24 and the copper sleeve 25, and the guide plate 21 can slide on the guide post 14 through the copper sleeve 25; a displacement sensor 26 is fixed on the voice coil motor mounting base 10 through a screw 36 and penetrates through the guide post auxiliary ring 24, and the top end of a pull rod of the displacement sensor 26 is fixed on the guide plate 21 through a nut 35; the speed measuring sensor 33 is positioned outside the speed measuring magnetic ring 8 and fixed in a groove on the voice coil motor mounting seat 10; the side of the steel ball mounting block 35 is provided with a certain number of radial round holes which are uniformly distributed, the steel ball mounting block 35 is provided with a central round hole, the steel ball 27 is arranged in the radial round hole, the pressure spring 33 is arranged in the radial round hole and presses the steel ball 27, the pressure spring 33 is pressed by the set screw 34 and is screwed on the steel ball mounting block 35, the steel ball mounting block 35 and the outer yoke 11 are positioned concentrically and are fixed at the bottom of the steel ball mounting block through screws, the gear shifting pull rod 29 penetrates through the central round hole, the steel ball 27 is pressed against the gear shifting pull rod 29 under the pressure action of the pressure spring 33, and when the gear shifting pull rod 29 pulls the gear shifting combination ring 5 to be positioned at a high speed gear or a low speed gear, the steel ball 27 is embedded in a positioning groove arranged on the gear shifting pull rod 29.
As shown in fig. 5, the intelligent controller 300 includes: an information acquisition unit 301, a logic processing unit 302, a gear shift driving circuit 303 and a main motor driving circuit 304. The information acquisition unit 301 inputs the acquired vehicle driving data, power source data and road condition data into the logic processing unit 302 through various sensors, and the logic processing unit 302 processes the information to obtain a target gear suitable for the current main driving motor 100. The shift driving circuit 303 is connected to the shift actuator 200, and the shift driving circuit 303 adaptively adjusts the position of the shift coupling ring 5 in the shift actuator 200 to the target gear according to the target gear. The main motor driving circuit 304 is connected to the main driving motor 100, and the main motor driving circuit 304 adaptively controls the rotation speed of the main driving motor 100 to cooperate with the gear-shifting coupling ring 5 to switch to a target gear according to the target gear.
More specifically, the sensors included in the information acquisition unit 301 include three types: the system comprises a sensor 1 for collecting vehicle running data, a sensor 2 for collecting power source data and a sensor 3 for collecting road condition data.
The sensor for collecting the vehicle running data comprises: a gear position sensor 3011 for acquiring a current gear position, and a speed sensor 3012 for acquiring a current running speed and acceleration.
The sensor for collecting power source data comprises: a motor hall sensor 3013 for acquiring the rotation speed of the main drive motor 100 and a current acquisition sensor 3014 for acquiring the stator current of the main drive motor 100;
the sensor for collecting road condition data comprises: a geographic locator 3015 for obtaining the current geographic location and a road condition receiver 3016 for obtaining the average driving speed of the vehicle at the current geographic location. The geographic locator 3015 may use a GPS or a beidou positioning system to obtain the current geographic position of the vehicle, and the obtained geographic position information includes road information, intersection information, speed limit information, traffic sign information, pedestrian crossing line information, and gradient information. In the invention, the road information refers to data or data sets which can be analyzed and processed by a navigation system, such as road names, road directions, lanes and the like and can be read by a computer; the intersection information refers to geographical positioning data of intersections of two or more roads; the speed limit information refers to the highest speed per hour specified by a traffic administration of each road; the traffic sign information comprises information of various traffic signs set by each road according to actual conditions; the pedestrian crossing line information refers to geographic positioning data of the pedestrian crossing line; the gradient information refers to information that each road is uphill, downhill, steep, cornering, flat and the like. The slope information can also determine the slope according to the output of the main driving motor and the actual speed of the vehicle, can judge the turning according to the wheel speed difference of the driven vehicle wheels on the two sides of the vehicle, and can also be directly measured according to a steering wheel angle sensor.
The sensors are not limited in type, and the sensors with different types for realizing corresponding functions can be selected by the technical personnel in the field according to requirements.
In the adaptive automatic transmission and shift intelligent control system, the logic processing unit 302 comprises a vehicle condition judging module 3021 for judging the current vehicle condition of the vehicle, a motor judging module 3022 for judging the working state of the main driving motor 100, and a target gear judging module 3023 for judging a target gear suitable for the current driving condition. The vehicle condition determining module 3021 may determine the current vehicle mass, the self-resistance, and the speed of the vehicle on the road according to the vehicle speed information, the road information, and the power source data. The motor judgment module 3022 may determine the health status of the motor itself, such as the power and temperature of the motor; the target gear determination module 3023 may determine the target gear according to the implementation efficiency of the main drive motor, the due vehicle speed, and the like.
Wherein, the logic processing unit 302 further includes: a vehicle condition correcting module 3024 connected to the vehicle condition determining module 3021 for correcting the current vehicle condition of the vehicle, a motor correcting module 3025 connected to the motor determining module 3022 for correcting the operating state of the motor, and a gear position correcting module 3026 connected to the target gear position determining module 3023 for correcting the target gear position. The vehicle condition correction module 3024, the motor correction module 3025, and the gear correction module 3026 combine the road condition data provided by the present invention, and combine the vehicle driving data, the power source data, and the road condition data with the proposed corrected vehicle condition, motor, and target gear for uniform correction, so as to avoid serious consequences caused by a driver's misoperation. The specific modification mode is as follows:
example 1
The embodiment 1 is used for explaining dangerous situations such as rear-end collision or collision caused by that a driver still steps on an accelerator when shifting gears in a traffic jam environment. In this embodiment, the logic processing unit 302 determines the gear and the speed of the vehicle on the current road according to the average driving speed of the current road on which the vehicle is located and the current speed.
When the driver has misoperation, the current vehicle speed greatly exceeds the average driving speed in a short time, and the target gear judgment module 2023 judges that the target gear is a high gear according to the vehicle speed and the motor speed, if the average driving speed is 1.5 times exceeded in 1 second, the vehicle condition correction module 3024 corrects the current vehicle speed to the average driving speed, the motor correction module 3025 outputs the motor, and the gear correction module 3026 corrects the target gear to a low gear. The logic processing unit 302 in this embodiment 1 corrects the error operation that is prone to accidents by combining the road condition data, so as to significantly reduce the vehicle speed and reduce the risk of accidents.
Example 2
This embodiment 2 is used to explain a dangerous situation in which the vehicle speed is too fast due to driver's carelessness or misoperation when the vehicle passes through an intersection or a pedestrian crossing. In this embodiment, the logic processing unit 302 determines the gear and the speed of the vehicle on the current road according to the intersection information and the pedestrian crossing information of the current road where the vehicle is located and the current speed of the vehicle.
When the driver has misoperation or negligence and the vehicle keeps running at a high speed when approaching the intersection and the pedestrian crossing, the vehicle condition correction module 3024 reduces the current vehicle speed, the motor output power of the motor correction module 3025, and the gear correction module 3026 corrects the target gear to a low gear. The logic processing unit 302 of this embodiment 2 corrects the erroneous operation and negligence of the accident-prone vehicle by combining the road condition data, thereby significantly reducing the vehicle speed and reducing the risk of the accident.
Example 3
Example 3 is for explaining a dangerous situation such as a driver speeding in a road restricted by a traffic sign. In this embodiment, the logic processing unit 302 determines the gear and the speed of the vehicle on the current road according to the average driving speed of the current road on which the vehicle is located and the current speed.
When the driver has misoperation and the current vehicle speed exceeds the limit speed in a short time, and the target gear judging module 2023 judges that the target gear is a high gear according to the vehicle speed and the motor rotating speed, the vehicle condition correcting module 3024 corrects the current vehicle speed to the average driving speed, the motor correcting module 3025 outputs the motor, and the gear correcting module 3026 corrects the target gear to a low gear. The logic processing unit 302 of this embodiment 3 corrects the error operation that is prone to accidents by combining the road condition data, thereby significantly reducing the vehicle speed and reducing the risk of accidents.
The above describes the modification of the target gear by each modification module in the logic determination unit 302 according to the present invention, with reference to embodiments 1, 2 and 3. The invention takes the information of road condition, intersection, traffic sign and the like as the considered parameters to make the gearbox have the auxiliary correction function of driving behavior.
The gear shifting manner of the intelligent control system of the invention is specifically described below with reference to the transmission 400 of the invention and the target gear modified by the logic processing unit 302.
When the set upshift condition is met, firstly, after the main driving motor 100 is controlled to enter a free mode, the gear shifting driving circuit 303 supplies power to the voice coil motor coil 16, and the framework 17 drives the gear shifting pull rod 29 and the gear shifting combination ring 5 to move to a neutral position together; when the displacement sensor 26 detects that the gear shift lever moves to the neutral position, the coil 16 is stopped to be powered, the main motor driving circuit 304 controls the main driving motor 100 to enter a speed regulation mode to start speed regulation, when the rotating speed of the high-speed gear driven gear 4 and the rotating speed of the gear shift coupling ring detected by the speed measurement sensor 33 reach a set synchronous error, the coil 16 is powered by the gear shift driving circuit 303, and the framework 17 can drive the gear shift pull rod 29 and the gear shift coupling ring 5 to move to the high-speed gear together; when the displacement sensor 26 detects that the shift lever moves to the high-speed gear position, the power supply to the coil 16 is stopped, and the main driving motor 100 enters a normal driving mode, at which time the steel ball 27 is just clamped in the positioning groove of the shift pull rod 29. If shift drive circuit 303 detects that shift sensor 26 has not reached the high-speed position beyond the set time, it is determined that the shift has failed, shift drive circuit 303 supplies power to voice coil motor coil 16, and armature 17 drives shift rod 29 and shift coupling ring 5 to move together to the neutral position, and when shift sensor 26 detects that the shift has reached the neutral position, power supply to coil 16 is stopped, and at this time, shift drive circuit 303 controls the corresponding components to repeat the action from the neutral position to the high-speed position until shift sensor 26 detects that the shift has reached the high-speed position.
When judging that the set downshift condition is met, firstly, after the main driving motor 100 is controlled to enter a free mode, the shift driving circuit 303 supplies power to the voice coil motor coil 16, and the framework 17 drives the shift pull rod 29 and the shift combination ring 5 to move to a neutral position together; when the displacement sensor 26 detects that the shift lever moves to the neutral position, the coil 16 is stopped to be powered, the main motor driving circuit 304 controls the main driving motor 100 to enter a speed regulation mode to start speed regulation, when the rotating speed of the low-speed gear driven gear 6 and the rotating speed of the shift coupling ring detected by the speed measurement sensor 33 reach a set synchronous error, the coil 16 is powered by the shift driving circuit 303, and the framework 17 can drive the shift pull rod 29 and the shift coupling ring 5 to move to the low-speed gear together; when the displacement sensor 26 detects that the shift lever has moved to the low-speed position, the power supply to the coil 16 is stopped, and the main drive motor 100 enters the normal drive mode, in which the steel ball 27 is just caught in the detent recess of the shift lever 29. If shift drive circuit 303 detects that gear sensor 26 has not reached the low-speed gear position beyond the set time, it is determined that the shift has failed, shift drive circuit 303 supplies power to voice coil motor coil 16, and skeleton 17 drives shift rod 29 and shift coupling ring 5 to move together to the neutral position, and when shift sensor 26 detects that the shift position is reached, power supply to coil 16 is stopped, and at this time, shift drive circuit 303 controls corresponding components to repeat the movement from the neutral position to the low-speed gear until shift sensor 26 detects that the shift position is reached the low-speed gear position.
As shown in fig. 6, the present invention further provides an adaptive automatic transmission shift intelligent control method, including:
a. reading vehicle running data to obtain the current vehicle speed and the position of the current gear of the vehicle;
b. after the main driving motor is started and works stably, detecting power source data of the main driving motor, including phase current and the like, and calculating load torque;
c. reading road condition data, wherein the current geographic position comprises intersection information, speed limit information, traffic sign information, pedestrian crossing line information and gradient information;
d. adaptively calculating a target gear suitable for the current state of the main driving motor according to vehicle driving data, power source data and road condition data;
e. judging whether the current gear is in a target gear, and executing the step g if the current gear is in the target gear;
f. if the current gear is not in the target gear, driving the gear shifting combination ring to move to the target gear and enter a target gear dead zone position; the main driving motor performs small-range progressive forward and reverse movement to enable the gear shifting combination ring to be matched with a driven gear of a target gear;
g. and maintaining the stability at the target gear.
In the adaptive automatic transmission shift intelligent control method provided by the invention, the adaptively calculating a target gear suitable for the current main drive motor state comprises: when the vehicle runs to the intersection and the pedestrian crossing line, the target gear is corrected to be the low gear. In the adaptive automatic transmission shift intelligent control method provided by the invention, the adaptively calculating a target gear suitable for the current main drive motor state comprises: and correcting the target gear to be a low gear or a high gear according to the average speed of the current road. The above adaptive calculation method is specifically referred to in embodiments 1, 2 and 3, and will not be described herein.
The invention further provides an adaptive automatic speed-changing and gear-shifting intelligent control method, which comprises the following steps: h. judging whether the gear shifting combination ring is out of gear or not; if the gear is out of gear, the gear-shifting coupling ring is directly driven to move to the original gear.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. An adaptive automatic speed-changing and gear-shifting intelligent control system is characterized by comprising a main driving motor (100), a gear-shifting actuator (200), an intelligent controller (300) and a gearbox (400); the main driving motor (100) and the gearbox (400) are connected through a spline, the gear shifting actuator (200) is connected with the gearbox (400), and the intelligent controller (300) controls the gear shifting operation of the gear shifting actuator (200); wherein the intelligent controller (300) comprises: the system comprises an information acquisition unit (301), a logic processing unit (302), a gear shifting driving circuit (303) and a main motor driving circuit (304); vehicle running data, power source data and road condition data are input into the logic processing unit (302) through the information acquisition unit (301), and the logic processing unit (302) processes information to obtain a target gear suitable for the current main driving motor (100); the gear shifting driving circuit (303) is connected with the gear shifting actuator (200), and the gear shifting driving circuit (303) adaptively adjusts the position of a gear shifting combination ring (5) in the gear shifting actuator (200) to move to a target gear according to the target gear; the main motor driving circuit (304) is connected with the main driving motor (100), and the main motor driving circuit (304) adaptively controls the rotating speed of the main driving motor (100) to be matched with the gear shifting combination ring (5) to be switched to a target gear according to the target gear;
the gearbox (400) comprises a gear shifting group driving gear (3), a high-speed driven gear (4) and a low-speed driven gear (6), bearings (28) and bearings (2) are arranged at bearing positions at two ends of the gear shifting group driving gear (3) respectively, and the bearings (28) and the bearings (2) are pressed on a gearbox reverse shell (31) and a gearbox front shell (32) respectively; the high-speed driven gear (4) and the low-speed driven gear (6) are respectively positioned on the shifting group driving gear (3) through snap springs, and the high-speed driven gear (4) and the low-speed driven gear (6) can freely rotate on the shifting group driving gear (3); the gear shifting combination ring (5) is connected to the gear shifting group driving gear (3) through a spline, and the gear shifting combination ring (5) and the gear shifting group driving gear (3) rotate together or move left and right on the gear shifting group driving gear (3); a shift pull rod (29) penetrates through a notch on the shift group driving gear (3) and a through hole on the shift pull rod (29) in a central hole of the shift group driving gear (3) through a connecting screw (30) on the shift combination ring (5) to be connected with the shift combination ring (5), and the shift pull rod (29) can axially move and synchronously rotate along with the shift combination ring (5); the gear shifting pull rod (29) is provided with corresponding gear positioning grooves; the tail end of the gear shifting group driving gear (3) is connected with a speed measuring magnetic ring (8) through a key groove; a framework oil seal (7) which is pressed on a reverse shell (31) of the gearbox is arranged on the outer side of the bearing (28);
the shift actuator (200) comprises: an outer yoke (11), magnetic steel (13) and a top yoke (23); the outer yoke (11) is connected with the voice coil motor mounting seat (10) through center positioning; the voice coil motor mounting seat (10) is fixed on the gearbox reverse shell (31) through a screw (34); the magnetic steel (13), the top magnetic yoke (23) and the outer magnetic yoke (11) are concentrically positioned and connected through an aluminum sleeve (12); a copper sleeve (25) is arranged in the aluminum sleeve (12); a gear shifting pull rod (29) penetrates through the voice coil motor mounting seat (10), the aluminum sleeve (12), the copper sleeve (25) and the top magnetic yoke (23); a bearing (18) is positioned at the tail end of the shift pull rod (29) through a nut (19); the bearing (18) is pressed in a central bearing hole of the framework (17); the guide plate (21) is connected with the framework (17) through a screw (20), and the guide plate (21) presses the bearing (18); a coil (16) is wound in a wire groove of the framework (17); the coil (16) and the framework (17) are arranged in a circular groove formed by the outer yoke (11) and the magnetic steel (13); the copper sleeve (25) is pressed in the guide plate (21); the guide auxiliary ring (24) is sleeved on the outer yoke (11); the guide post (14) is fixed on the voice coil motor mounting seat (10) and penetrates through the guide auxiliary ring (24) and the copper sleeve (25), and the guide plate (21) can slide on the guide post (14) through the copper sleeve (25); a displacement sensor (26) is fixed on the voice coil motor mounting seat (10) through a screw (36) and penetrates through the guide auxiliary ring (24), and the top end of a pull rod of the displacement sensor (26) is fixed on the guide plate (21) through a nut (35); the speed measuring sensor (33) is positioned outside the speed measuring magnetic ring (8) and fixed in a groove on the voice coil motor mounting seat (10); a groove space is formed between the voice coil motor mounting seat (10) and the outer yoke (11), a circle of steel balls (27) are arranged in the groove space, the outer sides of the steel balls (27) tighten the steel balls (27) through O-shaped rings or circular tension springs (9), and the gear shifting pull rod (29) penetrates through the circle of steel balls (27); the outer shell (22) covers the whole gear shifting execution module (200) and is connected to the gearbox counter shell (31);
the logic processing unit (302) comprises a vehicle condition judging module (3021) for judging the current vehicle condition of the vehicle, a motor judging module (3022) for judging the working state of the main driving motor (100) and a target gear judging module (3023) for judging a target gear suitable for the current running condition; wherein, still include: the system comprises a vehicle condition correction module (3024) connected with the vehicle condition judgment module (3021) and used for correcting the current vehicle condition of the vehicle, a motor correction module (3025) connected with the motor judgment module (3022) and used for correcting the working state of the motor, and a gear correction module (3026) connected with the target gear judgment module (3023) and used for correcting the target gear.
2. The adaptive automatic transmission shifting intelligent control system according to claim 1, wherein the information acquisition unit (301) comprises:
collecting vehicle driving data: a gear sensor (3011) for acquiring the current gear position and a speed sensor (3012) for acquiring the current running speed and acceleration;
collecting power source data: the motor Hall sensor (3013) is used for obtaining the rotating speed of the main driving motor (100) and the current acquisition sensor (3014) is used for obtaining the stator current of the main driving motor (100);
acquiring road condition data: a geographic locator (3015) for obtaining the current geographic position and a road condition receiver (3016) for obtaining the average driving speed of the current geographic position.
3. The adaptive automatic transmission shifting intelligent control system according to claim 2, wherein the current geographical position obtained by the geographical locator (3015) comprises intersection information, speed limit information, traffic sign information, pedestrian crossing line information, and gradient information.
4. The adaptive automatic transmission shifting intelligent control system according to claim 1, wherein the shift actuator (200) comprises: an outer yoke (11), magnetic steel (13) and a top yoke (23); the outer yoke (11) is connected with the voice coil motor mounting seat (10) through center positioning; the voice coil motor mounting seat (10) is fixed on the gearbox reverse shell (31) through a screw (34); the magnetic steel (13), the top magnetic yoke (23) and the outer magnetic yoke (11) are concentrically positioned and connected through an aluminum sleeve (12); a copper sleeve (25) is arranged in the aluminum sleeve (12); the gear shifting pull rod (29) penetrates through the voice coil motor mounting seat (10), the aluminum sleeve (12), the copper sleeve (25) and the top magnetic yoke (23); the bearing (18) is positioned at the tail end of the shift pull rod (29) through a nut (19); the bearing (18) is pressed in a central bearing hole of the framework (17); the guide plate (21) is connected with the framework (17) through a screw (20), and the guide plate (21) presses the bearing (18); a coil (16) is wound in a wire groove of the framework (17); the coil (16) and the framework (17) are arranged in a circular groove formed by the outer yoke (11) and the magnetic steel (13); the copper sleeve (25) is pressed in the guide plate (21); the guide auxiliary ring (24) is sleeved on the outer yoke (11); the guide post (14) is fixed on the voice coil motor mounting seat (10) and penetrates through the guide auxiliary ring (24) and the copper sleeve (25), and the guide plate (21) can slide on the guide post (14) through the copper sleeve (25); a displacement sensor (26) is fixed on the voice coil motor mounting seat (10) through a screw (36) and penetrates through the guide auxiliary ring (24), and the top end of a pull rod of the displacement sensor (26) is fixed on the guide plate (21) through a nut (35); the speed measuring sensor (33) is positioned outside the speed measuring magnetic ring (8) and fixed in a groove on the voice coil motor mounting seat (10); the side surface of the steel ball mounting block (35) is provided with a certain number of radial round holes which are uniformly distributed, the steel ball mounting block (35) is provided with a central round hole, the steel balls (27) are arranged in the radial circular holes, the pressure spring (33) is placed in the radial circular holes and presses the steel balls (27), the set screw (34) presses the pressure spring (33) and is screwed on the steel ball mounting block (35), the steel ball mounting block (35) and the outer yoke (11) are positioned concentrically, and is fixed at the bottom of the gear shifting mechanism by a screw, the gear shifting pull rod (29) passes through the central round hole, the steel ball (27) is pressed against the gear shifting pull rod (29) under the pressure action of the pressure spring (33), when the shift rod (29) pulls the shift coupling ring (5) to be in a high gear or a low gear, the steel ball (27) is embedded in a positioning groove formed in the gear shifting pull rod (29).
5. An adaptive automatic speed-changing gear-shifting intelligent control method of the adaptive automatic speed-changing gear-shifting intelligent control system according to any one of claims 1 to 4, characterized by comprising the following steps:
a. reading vehicle running data to obtain the current vehicle speed and the current gear position of the vehicle;
b. after the main driving motor is started and works stably, detecting power source data of the main driving motor, and calculating load torque;
c. reading road condition data, wherein the current geographic position comprises intersection information, speed limit information, traffic sign information, pedestrian crossing line information and gradient information;
d. adaptively calculating a target gear suitable for the current main driving motor state according to vehicle driving data, power source data and road condition data; the adaptively calculating a target gear appropriate for a current main drive motor state includes: when the vehicle runs to a crossing or a pedestrian crossing, correcting the target gear to be a low-speed gear or a high-speed gear according to the average speed of the current road;
e. judging whether the current gear is in the target gear, and executing the step g if the current gear is in the target gear;
f. if the current gear is not in the target gear, the gear shifting combination ring is driven to move to the target gear and enter the dead zone position of the target gear; the main driving motor performs small-range progressive forward and reverse movement to enable the gear shifting combination ring to be matched with a driven gear of a target gear;
g. and maintaining the stability in the target gear.
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| CN109139892A (en) * | 2018-11-01 | 2019-01-04 | 重庆市佳南工贸有限公司 | A kind of control method of electric vehicles gearbox |
| CN109340365A (en) * | 2018-12-13 | 2019-02-15 | 重庆市艾莫特汽车部件有限公司 | Automobile gear shift control system and method based on two-gear transmission |
| CN214413506U (en) * | 2019-07-25 | 2021-10-19 | 南京德朔实业有限公司 | Rear-walking type self-pushing working machine |
| CN110985657B (en) * | 2019-12-17 | 2021-04-16 | 潍柴动力股份有限公司 | Gear shifting method and device of AMT (automated mechanical Transmission) |
| CN111365450B (en) * | 2020-03-26 | 2021-06-11 | 泸州容大智能变速器有限公司 | CVT automatic transmission gear shifting method meeting various working conditions |
| CN112072960B (en) * | 2020-09-02 | 2023-01-17 | 无锡赛盈动力科技有限公司 | Automatic speed regulation control method of tricycle driving system |
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| JP4766955B2 (en) * | 2005-08-23 | 2011-09-07 | 株式会社デンソー | Shift range switching device |
| CN104260719B (en) * | 2014-09-17 | 2017-04-12 | 中国重汽集团济南动力有限公司 | GPS (Global Positioning System) signal based AMT (Automated Mechanical Transmission) motorcycle gear pre-judgment system and method |
| CN106004864B (en) * | 2016-05-30 | 2018-09-28 | 广州汽车集团股份有限公司 | A kind of vehicle travel control method and system |
| CN206513813U (en) * | 2016-12-15 | 2017-09-22 | 江苏巨杰机电有限公司 | A kind of two grades of automatic shifting transmission gear boxs |
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Effective date of registration: 20230331 Address after: Room 402, Building 12, No. 1158, Jiuting Central Road, Jiuting Town, Songjiang District, Shanghai, 2016 Patentee after: Shanghai Zhihui Technology Co.,Ltd. Address before: Room 101, Building 12, No. 1158 Central Road, Songjiang High tech Industrial Park, Caohejing Development Zone, Songjiang District, Shanghai, 2016 Patentee before: SHANGHAI ESSEWISE NEW ENERGY TECHNOLOGY CO.,LTD. |
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