Clutch electric assist device

Abstract

The invention relates to the technical field of automobile clutch auxiliary control, in particular to a clutch electric assist device which comprises a metal shell. A steering engine is fixed in the metal shell, and the exterior is electrically connected with a clutch pedal, a booster and a power supply; the steering engine comprises a fixed base, a chain wheel, a chain and a chassis; a supporting shaft is arranged on the fixed base, the supporting shaft is sleeved with the chain wheel, the chain wheel is in transmission connection with the supporting shaft through key connection, and the chain wheel synchronously rotates along with the supporting shaft; the chain is arranged on the periphery of the chain wheel in a surrounding mode, chain links of the chain are meshed with wheel teeth of the chain wheel, and when the chain wheel rotates, the chain is driven to do directional movement through meshing of the wheel teeth and the chain links. The motor is controlled to operate through three-key differentiation, parameters such as the acceleration and the stroke angle are flexibly adjusted in combination with the potentiometer and the control circuit board, precise clutch power-assisted control is achieved, multi-scene requirements are met, operation convenience and power-assisted stability are improved, and driving experience is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile clutch auxiliary control, in particular to a clutch electric auxiliary device. BACKGROUND

[0002] In the development history of automobile clutch operating system, the early stage mainly relies on pure mechanical structure to realize clutch operation, and the driver needs to exert a large force to control the clutch pedal. Long-time driving is easy to cause fatigue and the operation precision is limited by the matching precision of mechanical parts. With the popularization of electric technology, clutch auxiliary devices based on motor drive gradually appear in the market. The motor provides power assistance to reduce the foot load of the driver. This kind of device preliminarily realizes the transformation from mechanical power assistance to electric power assistance, and improves the convenience of clutch operation to a certain extent, but the core control mechanism and human-computer interaction mode still follow the traditional design, and the precise control ability of motor speed, steering and power stroke is limited, which is difficult to meet the individual needs in different driving scenarios.

[0003] However, the clutch electric auxiliary device in the prior art has many deficiencies in actual application. On the one hand, the motor control module of the device adopts fixed parameter setting, lacks flexible and adjustable input interface, and the driver cannot adjust the force, stroke and speed of the power assistance in real time according to his driving habits or vehicle working conditions, resulting in poor adaptability of the device; on the other hand, the traditional device generally lacks intuitive state display and convenient operation interface, and the user cannot obtain the working parameters (such as voltage, current, motor speed, etc.) of the device in real time, and the parameter setting process often needs to rely on professional tools or complex key combinations, which has high operation threshold. SUMMARY

[0004] The purpose of the present application is to overcome the above problems and provide a clutch electric auxiliary device. In order to achieve the above purpose, the present application adopts the following technical solutions:

[0005] A clutch electric auxiliary device, characterized in that: it comprises a metal shell; a rudder is fixed inside the metal shell, and the outside is electrically connected with a clutch pedal, a booster and a power supply; the rudder comprises a fixed base, a chain wheel, a chain and a chassis; a support shaft is arranged on the fixed base, the chain wheel is sleeved on the support shaft, the chain wheel is connected with the support shaft through a key for transmission connection, and the chain wheel rotates synchronously with the support shaft; the chain is arranged in a surrounding manner on the outer periphery of the chain wheel, the chain link of the chain is engaged with the gear teeth of the chain wheel, and the chain is driven to move directionally when the chain wheel rotates.

[0006] Furthermore, the servo also includes a motor and a control circuit board; the motor is rigidly connected to the fixed base, and the output shaft of the motor is connected to the sprocket by a key, and drives the sprocket to rotate synchronously when rotating; the control circuit board is fixedly installed inside the metal shell by screws, and is connected to the motor through wires, one end of the wire is welded to the terminal of the control circuit board, and the other end is connected to the power supply and signal interface of the motor, and the circuit board controls the steering speed and angle of the motor shaft through magnetic induction; the motor shaft is equipped with a magnet; the control circuit board is also electrically connected to the booster and power supply through wires.

[0007] Furthermore, the control circuit board includes a 12V power supply interface, a motor interface, a 3.3V power supply terminal, a GND terminal, and a rotary encoder with a confirmation key; the 12V power supply interface is connected to an external 12V power supply; the motor interface is connected to the motor; the rotary encoder with a confirmation key is respectively connected to encoder signal 1, encoder signal 2, confirmation button signal, and GND terminal.

[0008] Furthermore, the clutch pedal is fixedly installed under the servo through a bracket, and a wire wheel is mounted on the output shaft of the servo. One end of the steel wire is wound in the outer peripheral groove of the wire wheel and fixedly connected to the wire wheel, and the other end is fixedly connected to the connecting ear of the clutch pedal; the length of the steel wire is adjusted by adjusting the screw sleeve.

[0009] Furthermore, a voltage and current meter, a display screen, a wire hole and a potentiometer are installed on the outside of the metal shell; the voltage and current meter, the display screen and the control circuit board are electrically connected through wires passing through the wire hole; the potentiometer is connected to the adjustment signal input interface of the control circuit board through wires, and controls the angle and speed of the motor.

[0010] Furthermore, the display screen is a 0.96 OLED display screen, and the 0.96 OLED display screen is connected to a 3.3V power supply terminal, an OLED signal 1, an OLED signal 2, and a GND terminal respectively.

[0011] The advantages of the present invention are:

[0012] 1. The present invention sets a fixed base, a sprocket, a chain and other components in the steering gear. The sprocket and the support shaft are connected by a key for transmission. When the sprocket rotates, the chain drives the directional movement. The motor output shaft is key-connected to the sprocket. The control circuit board controls the motor speed and direction. At the same time, the clutch pedal is connected to the wire wheel on the steering gear output shaft by a steel wire. The length of the steel wire is adjustable. This realizes precise electric auxiliary control of the clutch pedal movement, makes the clutch operation more flexible and labor-saving, and improves the comfort and convenience of clutch operation during driving.

[0013] 2、The application sets 12V power supply interface, motor interface, rotary encoder belt determination key, etc. on the control circuit board, installs potentiometer, 0.96 OLED display screen, etc. outside the metal shell, the potentiometer controls the motor angle and speed, the display screen displays relevant information, and has acceleration, stroke angle, reverse speed setting functions, etc. can be set through the potentiometer adjustment, key operation and short circuit signal, etc. mode, realizes the diversification adjustment of motor operation parameters, can meet the individual needs of different users for clutch auxiliary control, enhances the applicability and flexibility of the device.

[0014] 3、The application sets voltage and current meter, display screen, etc. outside the metal shell, the display screen is connected with the 3.3V power supply end, OLED signal end, etc. of the control circuit board, displays the relevant state and parameters in real time, sets three function different keys at the same time, realizes different motor forward and reverse control functions, each key can interrupt the current function execution and execute the latest instruction, combined with the rotary encoder belt determination key operation, realizes the convenience and visualization of man-machine interaction, enables the user to intuitively understand the device running state and conveniently operate and set, improves the usability and safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of a rudder of a clutch electric auxiliary device in embodiment 1.

[0016] Figure 2 It is a structural schematic view of a clutch electric auxiliary device in embodiment 1.

[0017] Figure 3 It is a structural schematic view of a motor in a clutch electric auxiliary device in embodiment 1.

[0018] Figure 4 It is a top view of a motor in a clutch electric auxiliary device in embodiment 1.

[0019] Figure 5 It is a left view of a rudder of a clutch electric auxiliary device in embodiment 1.

[0020] Figure 6 It is a partial schematic view of a clutch electric auxiliary device in embodiment 1.

[0021] Figure 7 It is a schematic view of a control circuit board of a clutch electric auxiliary device in embodiment 1.

[0022] Figure 8 It is a front view of a worm gear reduction motor of a clutch electric auxiliary device in embodiment 1.

[0023] Figure 9Figure 1 is a left view of a turbine worm reduction motor in a clutch electric assist of Example 1.

[0024] Identified in the figure are:

[0025] 1, metal shell; 2, steering gear; 3, clutch pedal; 4, booster; 5, power supply; 21, fixed base; 22, sprocket; 23, chain; 24, chassis; 25, support shaft; 26, motor; 27, control circuit board; 6, wire wheel; 7, voltmeter and ammeter; 8, display screen; 9, wire hole; 10, potentiometer; 11, cooling fan; 12, wire. DETAILED DESCRIPTION

[0026] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the present application when it is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the embodiments of the present application, "a plurality of" represents at least 2.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] The present invention is described in detail and specifically below through specific examples to provide a better understanding of the present invention. However, the following examples do not limit the scope of protection of the present invention.

[0032] Example 1

[0033] This embodiment discloses an electric clutch assist device.

[0034] like Figures 1-9 As shown, a clutch electric assist device is characterized in that it includes a metal shell 1; a steering gear 2 is fixed inside the metal shell 1, and the outside is electrically connected to the clutch pedal 3, the booster 4 and the power supply 5; the steering gear 2 includes a fixed base 21, a sprocket 22, a chain 23 and a chassis 24; a support shaft 25 is provided on the fixed base 21, the sprocket 22 is sleeved on the support shaft 25, the sprocket 22 and the support shaft 25 are transmission-connected by a key connection, and the sprocket 22 rotates synchronously with the support shaft 25; the chain 23 is arranged on the outer periphery of the sprocket 22 in a surrounding manner, and the chain links of the chain 23 are engaged with the teeth of the sprocket 22. When the sprocket 22 rotates, the engagement between the teeth and the chain links drives the chain 23 to perform directional movement.

[0035] The metal housing 1 forms the main support structure of the device. The integrated servo 2 within it forms a closed-loop meshing transmission mechanism via a fixed base 21, a support shaft 25, a sprocket 22, and a chain 23. The keyed connection between the sprocket 22 and the support shaft 25 ensures rigid synchronous rotation. The chain 23, through tooth-link meshing, converts rotary motion into directional linear motion, providing a stable mechanical power transmission path for the clutch pedal 3. This transmission structure, through the precise coordination of mechanical components, ensures zero slip and low vibration in power transmission. This provides a hardware-based foundation for smooth clutch operation, effectively reducing the driver's foot pressure while improving the reliability of the transmission system.

[0036] Further, the steering engine 2 further comprises a motor 26 and a control circuit board 27; the motor 26 is rigidly connected with the fixed base 21, the output shaft of the motor 26 is connected with the sprocket 22 through a key, and the sprocket 22 is driven to rotate synchronously when the motor 26 rotates; the control circuit board 27 is fixedly installed inside the metal shell 1 through screws, and is connected with the motor 26 through wires, one end of the wires is welded to the terminal of the control circuit board 27, and the other end is connected with the power supply and signal interface of the motor 26; the circuit board controls the rotation speed, angle and direction of the motor shaft through magnetic induction; the motor shaft is provided with a magnet; the control circuit board 27 is further electrically connected with the voltage booster 4 and the power supply 5 through wires.

[0037] As shown in Figures 8-9 The motor 26 can be a worm gear reduction motor.

[0038] The motor 26 and the control circuit board 27 integrated in the steering engine 2 form an electromechanical coupling driving system: the motor 26 is rigidly connected with the fixed base 21 as a power source, the rotation speed and angle of the motor 26 are realized through the magnet on the motor shaft and the induction of the control circuit board 27, the control circuit board 27 is a core electric control unit, realizes full closed loop control of the rotation speed and direction of the motor 26 through wire link, and cooperates with the voltage booster 4 and the power supply 5 to complete system power supply management. The design gives the device dynamic power regulation capability, can adjust the assist output in real time according to the stroke feedback signal of the clutch pedal 3, realizes low damping response in idle speed working condition and precise torque compensation in gear shifting process, and solves the nonlinear assist defects of traditional mechanical assist devices.

[0039] Further, the control circuit board 27 comprises a 12V power supply interface, a motor interface, a 3.3V power supply end, a GND end and a rotary encoder belt determination key; the 12V power supply interface is connected with the external 12V power supply 5; the motor interface is connected with the motor 26; and the rotary encoder belt determination key is connected with an encoder signal 1, an encoder signal 2, a determination key signal and the GND end respectively.

[0040] The modular interface design of the control circuit board 27 forms a multi-dimensional control system: the 12V power supply interface realizes stable access of the external power supply 5, the 3.3V power supply end provides low-voltage power supply for the display module, the motor interface completes bidirectional transmission of power signals, and the rotary encoder belt determination key forms a human-computer interaction input channel. The configuration supports users to realize programmable setting of running parameters such as acceleration and stroke angle of the motor 26 through a physical knob, and cooperates with the power-off memory function, which significantly improves the adaptation ability of the device to different driving habits and vehicle working conditions.

[0041] Further, the clutch pedal 3 is fixedly installed below the steering gear 2 by a support, a steel wire 12 reel 6 or a chain wheel 22 is sleeved on the output shaft of the steering gear 2, one end of the steel wire 12 is wound in the outer circumferential groove of the steel wire 12 reel 6 and is fixedly connected with the steel wire 12 reel 6, and the other end is fixedly connected with the connecting lug of the clutch pedal 3; the length of the steel wire 12 is adjusted by an adjusting sleeve, a chain 23 is sleeved on the chain wheel 22, the other end of the chain 23 is connected with a fixed hook and is fixed on the bottom of the vehicle by a screw.

[0042] The mechanical connection system of the clutch pedal 3 and the steering gear 2 realizes motion coupling through the steel wire 12 reel 6 and the adjustable steel wire 12 assembly: the steel wire 12 reel 6 is sleeved on the output shaft of the steering gear 2, the winding connection between the outer circumferential groove of the steel wire 12 reel 6 and the steel wire 12 converts the rotary displacement of the motor 26 into the linear stroke of the pedal; the setting of the adjusting sleeve allows fine adjustment of the effective length of the steel wire 12 within ±5mm, ensuring that the mechanical zero position of the pedal 3 is accurately aligned with the electrical zero position of the motor 26.

[0043] Further, the voltage and current meter 7, the display screen 8, the wire hole 9 and the potentiometer 10 are installed outside the metal shell 1; the voltage and current meter 7, the display screen 8 and the control circuit board 27 are electrically connected through the wires passing through the wire hole 9; the potentiometer 10 is connected with the adjusting signal input interface of the control circuit board 27 through wires and controls the angle and speed of the motor 26.

[0044] The voltage and current meter 7, the 0.96 OLED display screen 8 and the potentiometer 10 integrated outside the metal shell 1 build a visual human-computer interaction interface: the voltage and current meter 7 monitors the input voltage of the power supply 5 and the working current of the system in real time, providing data support for abnormal condition diagnosis; the display screen 8 displays the running parameters of the motor 26 in real time through the SPI communication protocol; the potentiometer 10 as an analog signal input element can realize continuous adjustable control of the rotation angle (adjustment range 0-300°) and the rotation speed of the motor 26. The three are connected with the control circuit board 27 through the shielded cable in the wire hole 9, forming a closed-loop operation system of "state monitoring-parameter setting-real-time control", so that non-professional users can also complete complex assist parameter configuration.

[0045] Further, the display screen 8 is a 0.96 OLED display screen, and the 0.96 OLED display screen is connected with a 3.3V power supply end, an OLED signal 1, an OLED signal 2 and a GND end respectively.

[0046] 0.96OLED display screen 8 as display components, through the 3.3V power supply end, OLED signal 1, OLED signal 2 and GND end with control circuit board 27 connection, real-time display motor 26 operating parameters and operation feedback. OLED display screen 8 high contrast and fast response characteristics, ensure that users in different environments to clearly view information, with the rotary encoder belt to determine the operation of the key, the complex electric control state into visual information, avoid the misoperation caused by the parameters set is not clear, further improve the intuitive and safety of the auxiliary robot machine interaction.

[0047] Two kinds of installation method, the car with steel wire 12 wheel and steel wire 12 or chain 23 and chain wheel 22 installation, outside the car with the motor and through the steel wire 12 to pull the clutch pedal, in addition, can also be used wireless remote control or wired control execution.

[0048] The operation process is as follows: in terms of button operation, trigger button signal 1, motor 26 rotates forward at rated speed to 0 to 300 ° adjustable arbitrary position stop, release the button, motor 26 enters the reverse speed adjustable mode, reverse can set any position angle stop 0.5 to 5 seconds and then continue to return, until the return to the starting point, and point press the button once, motor 26 micro point. Continuous press will continue to rotate to the end. Release to execute reverse. Trigger button signal 2, motor 26 rotates forward at rated speed to 0 to 300 ° adjustable arbitrary position stop, release the button, motor 26 enters the reverse speed adjustable mode, reverse can set any position angle stop 0.5 to 5 seconds and then continue to return, until the return to the starting point, and point press the button once, motor 26 micro point. Continuous press will continue to rotate to the end. Release to execute reverse. Trigger button signal 3, motor 26 rotates forward at rated speed to 0 to 300 ° adjustable arbitrary position stop, release the button, motor 26 not only reverse speed adjustable, and reverse end position angle can also be adjusted, the operation mode is the same as the second button, and the maximum angle of motor 26 rotation limit is close to 300 °, each button has the characteristics of interrupting the current operation and executing the latest button instruction.

[0049] Function setting use instruction:

[0050] 1. Design power supply 12-24V.

[0051] 2. The maximum setting angle is 0-300 degrees.

[0052] 3. According to the setting menu, press the knob for 1s to enter the menu. If you just want to enter to view data, you can press to exit without restarting. If you change some data value, you need to restart if you don't point to save. The current setting data will not take effect after restarting. If you point to save, it will take effect after restarting.

[0053] 4. When the stroke is set, the motor will follow the value change.

[0054] 5. When setting the speed, you can press the button in the numerical adjustment interface to observe the effect of the current speed value.

[0055] 6. Acceleration and forward and reverse are not effective in real time, and the application settings need to be restarted.

[0056] 7. Stroke settings must be tailored to the actual situation and must be within a reasonable range. For example, if the starting point is set at 50, the end point must be greater than 50. The return angle must also be set appropriately. For example, if the starting point is 50 and the end point is 90, the return angle can only be between 90-50=40, or 0-40. Otherwise, illogical data may not function properly.

[0057] 8. The return angle is the added value of the starting angle: for example, if the starting angle is set to 50 and the return angle is set to 10, then the actual return angle is 50+10=60.

[0058] 9. If the settings are abnormal and unreasonable, try restoring the factory settings and restarting.

[0059] 10. Menu item meaning:

[0060]

[0061] 11. After all settings are completed, you need to restart the power to take effect.

[0062] While the specific embodiments of the present invention have been described in detail above, they are merely exemplary, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions of the present invention are also within the scope of the present invention. Therefore, equivalent changes and modifications made without departing from the spirit and scope of the present invention are intended to be encompassed within the scope of the present invention.

Claims

1. A clutch electric assist device, characterized in that: It comprises a metal shell; a servo is fixed inside the metal shell, and the outside of the metal shell is electrically connected to a clutch pedal, a booster and a power supply; the servo comprises a fixed base, a sprocket, a chain and a chassis; a support shaft is provided on the fixed base, the sprocket is sleeved on the support shaft, the sprocket and the support shaft are connected for transmission via a key connection, and the sprocket rotates synchronously with the support shaft; the chain is arranged on the outer periphery of the sprocket in a circular manner, the chain links of the chain are engaged with the teeth of the sprocket, and when the sprocket rotates, the chain is driven to perform directional movement through the engagement of the teeth and the chain links.

2. The electric clutch assist device according to claim 1, characterized in that: The servo also includes a motor and a control circuit board; the motor is rigidly connected to the fixed base, and the output shaft of the motor is connected to the sprocket by a key, and drives the sprocket to rotate synchronously when rotating; the control circuit board is fixedly installed inside the metal shell by screws and is connected to the motor by wires, one end of the wire is welded to the terminal of the control circuit board, and the other end is connected to the power supply and signal interface of the motor, and the circuit board controls the steering speed and angle of the motor shaft through magnetic induction; the motor shaft is equipped with a magnet; the control circuit board is also electrically connected to the booster and power supply through wires.

3. The electric clutch assist device according to claim 2, characterized in that: The control circuit board includes a 12V power supply interface, a motor interface, a 3.3V power supply terminal, a GND terminal, and a rotary encoder with a confirmation key; the 12V power supply interface is connected to an external 12V power supply; the motor interface is connected to the motor; the rotary encoder with a confirmation key is respectively connected to encoder signal 1, encoder signal 2, confirmation button signal, and GND terminal.

4. The electric clutch assist device according to claim 3, characterized in that: The clutch pedal is fixedly installed under the steering gear through a bracket, and a wire wheel is mounted on the output shaft of the steering gear. One end of the steel wire is wound in the outer peripheral groove of the wire wheel and fixedly connected to the wire wheel, and the other end is fixedly connected to the connecting ear of the clutch pedal; the length of the steel wire is adjusted by adjusting the screw sleeve.

5. The electric clutch assist device according to claim 4, characterized in that: A voltage and current meter, a display screen, a wire hole and a potentiometer are installed on the outside of the metal shell; the voltage and current meter, the display screen and the control circuit board are electrically connected through wires passing through the wire hole; the potentiometer is connected to the adjustment signal input interface of the control circuit board through wires, and controls the angle and speed of the motor.

6. The electric clutch assist device according to claim 5, characterized in that: The display screen is a 0.96 OLED display screen, and the 0.96 OLED display screen is connected to a 3.3V power supply terminal, an OLED signal 1, an OLED signal 2, and a GND terminal respectively.

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