Gear selection mechanism with real-time display of gear position and method of operation thereof

Abstract

The application discloses a kind of gear selection and switching mechanism and its working method for real-time display gear, including shell, gear lever, bolt, gear shift knob, magnetic steel assembly, full gear sensor, control block, integrated self-locking pin, gear signal switch, limit spring and support, breather plug, gear selection lever assembly.Gear lever is assembled in shell, and is positioned axially by bolt;Gear shift knob passes through gear lever, and can be moved axially by spline cooperation;Magnetic steel assembly is fixed on gear shift knob by screw, and moves with gear shift knob;Full gear sensor is fixed on shell, is located above magnetic steel assembly, inducts magnetic steel assembly position, and outputs gearbox real-time gear;Control block side is provided with self-locking groove, and realizes gear shifting self-locking function;Control block side is provided with "V" type groove, realizes in gear and neutral signal output;Limit spring cooperates with support, and applies appropriate spring force to gear shift knob, to ensure that gear selection is clear;Breather plug is installed above control block, to reduce gearbox oil leakage risk.

Description

Technical Field

[0001] This invention belongs to the field of gearbox technology, specifically relating to a gear selection and shifting mechanism that displays the gear position in real time and its working method. Background Technology

[0002] A training vehicle is a vehicle specifically designed for driver instruction and training. Compared to ordinary motor vehicles, in addition to meeting functional requirements, it also needs to focus on teaching and training, as well as safety and reliability. For example, it should provide real-time feedback to students and the monitoring system on the vehicle's current gear position, whether it is in gear, and prevent accidental operation for novice learners.

[0003] Existing technical document CN114294411A provides a method, system, and automobile for displaying manual transmission gear positions. First, it acquires the displacement and angle signals of the shift gear. Then, it determines the manual transmission gear position value based on these signals. Finally, it sends the determined manual transmission gear position value to a display screen to improve the user's proficiency in shifting gears. Patent CN214699149 provides a dual-lever control assembly with power assist. Rotating the control handle rotates the shift joint, causing the fixed pin and inner shaft shifter to rotate. The rotation of the inner shaft shifter pushes the inner shaft of the booster to move axially, opening the booster valve core of the booster assembly. Compressed air enters the booster cylinder of the booster assembly, generating a power assist effect that pushes the outer shaft of the booster to move axially. The outer shaft of the booster pushes the outer shaft shifter to rotate, causing the spline sleeve to rotate. The spline sleeve transmits torque to the shifter shifter, enabling gear shifting. This improves the efficiency of the control lever system and ensures a good shifting feel.

[0004] The aforementioned existing technologies have problems such as the inability to display the gear position of the training vehicle in real time, difficulty in determining whether the vehicle is in gear, and accidental contact with the gear shift lever during operation leading to incorrect gear changes. They also pose a risk of leakage at the transmission breather plug due to the inability to effectively prevent splashing transmission fluid. Summary of the Invention

[0005] The purpose of this invention is to provide a gear selection and shifting mechanism assembly that can display the vehicle's gear position in real time, meeting the usage requirements of special vehicles such as training vehicles to display the gear position and whether it is in gear in real time. At the same time, the invention designs related structures to improve the safety and reliability of novice learners and vehicles. The invention provides a gear selection and shifting mechanism that displays the gear position in real time and its working method.

[0006] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0007] A gear selection and shifting mechanism for real-time gear display includes a housing, a gear shift lever, bolts, a gear shift paddle, a magnet assembly, a full-gear sensor, a control block, an integrated self-locking pin, a gear position signal switch, a limit spring, a spring support, a vent plug, and a gear selection lever assembly. The gear shift lever is assembled to the housing and axially positioned by the bolts. The gear shift paddle is splined onto the gear shift lever, and rotating the gear shift lever drives the gear shift paddle to shift gears. The gear selection lever assembly is installed in the housing, and its paddle portion mates with the lower slot of the gear shift paddle; rotating the gear selection lever drives the gear shift paddle to select gears.

[0008] Preferably, the magnet assembly is fixed above the shift lever and can move axially and rotate radially with the shift lever; the full gear position sensor is fixed on the housing and positioned above the magnet assembly, and can sense the position of the magnet assembly.

[0009] Preferably, the control block is fixed to the gear shift lever and rotates with the gear shift lever. The gear position signal switch is installed on the housing, and its lower pin cooperates with the "V" groove of the control block.

[0010] Preferably, the integrated self-locking pin is assembled on the housing, and the steel ball below it cooperates with the self-locking groove of the control block.

[0011] Preferably, the limiting spring and the spring support pass through the shift lever and are assembled on the housing. A set of springs are installed on each side of the shift lever to jointly apply spring force to the shift lever.

[0012] Preferably, the vent plug is connected to the vent plug hole above the housing, and the vent plug hole is opened above the control block to block the transmission oil that splashes up.

[0013] The working method of the gear selection and shifting mechanism for real-time gear display mentioned above includes the following steps: the full gear position sensor senses the real-time position of the magnet assembly. When the shift lever is in a specific gear or neutral, the magnet assembly fixed to the shift lever feeds back the position of the shift lever at this time, i.e. the gear of the transmission, to the full gear position sensor. The full gear position sensor then outputs a corresponding signal to the vehicle and the driver to realize the real-time display of the vehicle's gear.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] 1. The present invention fixes the magnet assembly to the shift paddle, and the full gear position sensor fixed to the housing on the upper part can sense the displacement and rotation angle of the magnet assembly (i.e., the shift paddle) in real time, thereby feeding back the real-time gear position of the transmission to the student, the vehicle and the examination system, so as to meet the needs of real-time gear position display of the training vehicle.

[0016] 2. The pin of the gear position signal switch cooperates with the "V" groove of the control block to output a signal indicating whether the vehicle is in gear, thus meeting the functional requirements of the training vehicle to determine whether the vehicle is in gear.

[0017] 3. The steel ball of the integrated self-locking pin cooperates with the self-locking groove of the control block, which has a gear self-locking function to prevent students from accidentally touching the gear shift lever and changing the wrong gear during operation.

[0018] 4. The two sets of limit springs and spring supports on both sides of the shift lever ensure that the shift lever is balanced in terms of force when in neutral, ensuring clear gear selection for the learner.

[0019] 5. The breather plug is located above the control block, which can effectively block splashed transmission fluid and greatly reduce the risk of oil leakage at the transmission breather plug. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of an embodiment of a gear selection and shifting mechanism for real-time display of gear position according to the present invention.

[0021] Figure 2 This is a schematic diagram of the full-gear sensor sensing magnet assembly used to determine the vehicle's gear position in an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram showing the positions of the control block, gear signal switch, control block self-locking groove, and integrated self-locking pin in an embodiment of the present invention.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1-Housing, 2-Shift lever, 3-Bolt, 4-Shift dial, 5-Magnetic assembly, 6-Full gear position sensor, 7-Control block, 8-Integrated self-locking pin, 9-Gear position signal switch, 10-Limit spring, 11-Spring support, 12-Vard valve, 13-Shift lever assembly; A-Self-locking groove, B-"V" groove, C-Pin, D-Steel ball, E-Vard valve hole, F-Shift groove, G-Shift dial, H-Sensor output interface. Detailed Implementation

[0025] To make the objectives, advantages, and features of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] like Figure 1 As shown, this embodiment provides a gear selection and shifting mechanism for real-time display of gear position and its working method, including a housing 1, a shift lever 2, a shift paddle 4, a gear selection lever assembly 13, a magnet assembly 5, and a full gear position sensor 6.

[0027] The shift lever 2 is mounted on the housing 1 and is axially positioned by bolts 3. It can rotate radially. The shift paddle 4 is mounted on the shift lever 2 and can move axially or rotate with the shift lever 2 to complete the shifting action. The shift paddle G of the shift lever assembly 13 is mounted in the shift slot F of the shift paddle 4. Rotating the shift paddle G will cause the shift paddle 4 to move axially to complete the shifting action.

[0028] like Figure 1 , Figure 2 As shown, the magnet assembly 5 is fixed above the shift paddle 4 and can move axially or rotate radially with the shift paddle 4; the full-gear sensor 6 is fixed on the housing 1 and positioned above the magnet assembly 5. After the gear selection and shifting actions are completed, the gear selection / shifting mechanism and the vehicle will be in a specific gear. At this time, the full-gear sensor 6 can sense the position and angle changes of the magnet assembly 5, thereby determining the specific gear position of the transmission and the vehicle. Then, through the sensor output interface H, the specific gear position information of the vehicle at this time is transmitted to the vehicle display device in real time. The trainee and the monitoring system can receive this information simultaneously, realizing the function of real-time gear display of the training vehicle.

[0029] like Figure 3 As shown, a "V"-shaped groove B is formed on one side of the control block 7. The gear position signal switch 9 is mounted on the housing 1, and the pin C of the gear position signal switch 9 engages with the "V"-shaped groove B of the control block 7. When the shift knob 4 is in neutral, the pin C of the gear position signal switch 9 falls into the "V"-shaped groove B of the control block 7, and the gear position signal switch 9 outputs a neutral signal, which is simultaneously received by the student and the examination system. When the shift knob 4 engages a gear, it drives the control block 7 to rotate, and the pin C of the gear position signal switch 9 is pushed out of the "V"-shaped groove B of the control block 7, at which point it outputs a gear signal, which is simultaneously received by the student and the examination system.

[0030] The control block 7 has a self-locking groove A on one side. The integrated self-locking pin 8 is installed on the housing 1, and the steel ball D of the integrated self-locking pin 8 cooperates with the self-locking groove A of the control block 7. When the transmission is in neutral or gear, the steel ball D of the integrated self-locking pin 8 falls into the self-locking groove A of the control block 7, and the integrated self-locking pin 8 locks the control block 7 through the steel ball D, preventing the control block 7 from rotating. To break the lock, the student needs to manually apply a large gear-engaging or disengaging force, thereby avoiding accidental gear engagement or disengagement.

[0031] like Figure 1As shown, each side of the shift lever 4 is equipped with an identical set of limiting springs 10 and spring supports 11. The limiting springs 10 pass through the shift lever 2, with one end pressed against the housing 1 and the other end pressed against the spring support 11. The spring support 11 is then pressed against the shift lever 4. The two sets of limiting springs 10 work together to apply spring force, keeping the shift lever 4 balanced in the middle position for gear selection. When the student performs gear selection, they can clearly feel the resistance, thus accurately determining the gear selection position and avoiding gear selection errors.

[0032] like Figure 3 As shown, the vent plug 12 is installed at the vent plug hole E of the housing 1. The vent plug hole E of the housing 1 is located directly above the control block 7. When transmission oil splashes up, the control block 7 can block most of the transmission oil, thereby greatly reducing the risk of transmission vent plug 12 leakage and improving product reliability.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

Claims

1. A gear selection and shifting mechanism for real-time gear display, comprising a housing, a shift lever, bolts, a shift paddle, a magnet assembly, a full-gear sensor, a control block, an integrated self-locking pin, a gear signal switch, a limit spring, a spring support, a vent plug, and a gear selection lever assembly, characterized in that: The shift lever is assembled into the housing and is axially positioned by bolts; the shift paddle is sleeved onto the shift lever via a spline; the gear selector assembly is installed into the housing, and the gear selector engages with the gear selector slot at the bottom of the shift paddle.

2. The gear selection and shifting mechanism for real-time display of gear position according to claim 1, characterized in that: The magnet assembly is fixed above the shift lever and moves axially and rotates radially with the shift lever; the full gear sensor is fixed on the housing and is positioned above the magnet assembly.

3. The gear selection and shifting mechanism for real-time display of gear position according to claim 1, characterized in that: The control block is fixed to the gear shift lever. The self-locking groove on the side of the control block cooperates with the steel ball of the integrated self-locking pin, and the "V" shaped groove on the side cooperates with the pin of the gear position signal switch.

4. The gear selection and shifting mechanism for real-time display of gear position according to claim 1, characterized in that: The two sets of limiting springs and spring supports pass through the shift lever and are installed on the left and right sides of the shift head, respectively.

5. A gear selection and shifting mechanism for real-time display of gear position according to claim 1, characterized in that: The vent plug is connected to a vent plug hole on the upper part of the housing, and the vent plug hole is located directly above the control block.

6. The working method of the gear selection and shifting mechanism for real-time display of gear position as described in any one of claims 1-5, characterized in that, Includes the following steps: The full-gear sensor senses the real-time position of the magnet assembly. When the shift lever is in a specific gear or neutral, the magnet assembly fixed to the shift lever will feed back the position of the shift lever, i.e. the gear position of the transmission, to the full-gear sensor. The full-gear sensor then outputs a corresponding signal to the vehicle and the driver to realize the real-time display of the vehicle's gear position.

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