Shaft transmission pedal motorcycle hybrid engine structure and control method

Abstract

The shaft transmission pedal motorcycle hybrid engine structure is characterized in that the shaft transmission pedal motorcycle hybrid engine structure comprises an internal combustion engine unit, an AMT gearbox, a motor unit and a transmission shaft assembly, an output shaft of the internal combustion engine unit is connected with a clutch assembly, and the clutch assembly is located in a shell of the AMT gearbox; an output shaft of the clutch assembly is in gear transmission with an input shaft of the AMT gearbox, the motor unit is arranged in a shell of the AMT gearbox, one end of a central shaft of the motor unit is connected with the output shaft of the AMT gearbox, and the other end of the central shaft of the motor unit is in gear transmission with the transmission shaft assembly. The method has the beneficial effect that the power performance and the fuel economy of the pedal motorcycle are remarkably improved. Smoother driving experience is provided; the pause feeling of a vehicle body when a traditional AMT speed changing box accelerates and decelerates suddenly is avoided; the use cost of the vehicle and the influence on the environment are reduced.

Description

Technical Field

[0001] The present invention relates to the field of motorcycle power systems, and in particular to a shaft-driven scooter hybrid engine structure and a control method. Background Art

[0002] The transmission mode and gearbox of traditional scooters have deficiencies in power transmission efficiency, gear shifting smoothness and energy utilization. With the development of technology, the application of hybrid technology in the motorcycle field has gradually attracted attention, but the existing hybrid engines still need to be improved in structure and performance. Summary of the invention

[0003] In view of the deficiencies in the above-mentioned prior art, the present invention provides a shaft-driven scooter hybrid engine structure, which realizes efficient power output of the scooter and improves fuel economy and driving comfort.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A shaft-driven scooter hybrid engine structure, characterized in that it includes an internal combustion engine unit, an AMT gearbox, an electric motor unit, and a transmission shaft assembly, wherein the output shaft of the internal combustion engine unit is connected to a clutch assembly, the clutch assembly is located in the housing of the AMT gearbox, the output shaft of the clutch assembly and the input shaft of the AMT gearbox are gear-driven, the electric motor unit is arranged in the housing of the AMT gearbox, one end of the central axis of the electric motor unit is connected to the output shaft of the AMT gearbox, and the other end of the central axis of the electric motor unit is gear-driven to the transmission shaft assembly.

[0006] Furthermore, it also includes a hybrid power control unit and an energy management system. The hybrid power control unit is used to control the working status of the internal combustion engine unit and the electric motor unit. The energy management system includes a battery status monitoring module, an energy recovery control module, and a charging management module.

[0007] Furthermore, the AMT gearbox includes a shift actuator and a gear set.

[0008] Furthermore, the shift actuator includes a fork drive assembly disposed in a housing of the AMT gearbox.

[0009] It is also intended to provide a shaft-driven scooter hybrid engine control method, characterized in that: in fuel mode, the internal combustion engine unit outputs power, and the hybrid power control unit controls the AMT gearbox to achieve gear shifting according to the collected vehicle speed, throttle opening, and battery power, wherein during the upshift process, the motor unit starts the compensation power shift, and after the gear shift is completed, the motor unit stops working, and during the deceleration and downshift process, the energy recovery system is started, and the power is transmitted to the rear wheel through the internal combustion engine unit, the AMT gearbox, the motor unit, and the transmission shaft assembly in sequence;

[0010] In pure electric mode, the electric motor unit outputs power, the internal combustion engine unit is in a flameout state, and the hybrid control unit controls the AMT transmission to be in a neutral state. The hybrid control unit collects vehicle speed, throttle opening, and battery power to control the electric motor unit to output power, and the power is transmitted to the rear wheels through the electric motor unit and the transmission shaft assembly in sequence;

[0011] In hybrid mode, the internal combustion engine unit and the electric motor unit are started at the same time. The hybrid power control unit collects vehicle speed, throttle opening, and battery power to control the AMT transmission shifting. The electric motor unit compensates power when upshifting, and the energy recovery system for deceleration and downshifting is activated. The electric motor unit compensates power according to the vehicle speed and the internal combustion engine unit output. The power is transmitted to the rear wheels through the internal combustion engine unit, AMT transmission, electric motor unit, and drive shaft assembly in sequence.

[0012] The beneficial effects of the present invention include: 1. Significantly improve the power performance and fuel economy of the scooter. 2. The AMT gearbox is combined with the shaft drive to provide a smoother driving experience; 3. The motor compensates for the power loss when the AMT gearbox shifts gears, solving the frustration of the vehicle body during rapid acceleration and deceleration of the traditional AMT gearbox; 4. Optimized hybrid control and energy management reduce the cost of vehicle use and the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the structure of the invention;

[0014] Figure 2 It is the logic diagram of the invented control unit. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] A kind of Figure 1-2The shaft-driven scooter hybrid engine structure shown includes an internal combustion engine unit 1, an AMT gearbox 2, an electric motor unit 3, and a transmission shaft assembly 4. The internal combustion engine unit adopts a small-displacement high-efficiency internal combustion engine, which optimizes the combustion process and reduces fuel consumption and emissions. The output shaft of the internal combustion engine unit 1 is connected to a clutch assembly 5, which is located in the housing of the AMT gearbox 2. The output shaft of the clutch assembly 5 and the input shaft of the AMT gearbox 2 are driven by a bevel helical gear. The electric motor unit 3 is arranged in the housing of the AMT gearbox 2. The electric motor unit 3 uses a high-performance permanent magnet synchronous motor, which can provide instantaneous large torque output. One end of the central shaft of the electric motor unit 3 is connected to the output shaft of the AMT gearbox 2, and the other end of the central shaft of the electric motor unit 3 is driven by a gear with the transmission shaft assembly 4.

[0017] It also includes a hybrid power control unit and an energy management system. The hybrid power control unit is used to control the working state and mode switching of the internal combustion engine unit 1 and the electric motor unit 3 according to parameters such as vehicle speed, throttle opening, and battery power. The energy management system includes a battery state monitoring module, an energy recovery control module, and a charging management module to reasonably control energy recovery and battery charging to extend the battery life. The energy management system is the same as the prior art and will not be repeated here.

[0018] like Figure 1 As shown, the AMT gearbox 2 includes a shift actuator and a gear set, and the shaft transmission assembly is composed of a motor rotor, a speed change gear shaft, a rear horn gear, etc. The shift actuator includes a fork drive assembly 6 disposed in the housing of the AMT gearbox.

[0019] A shaft-driven scooter hybrid engine control method, characterized in that: in fuel mode, the internal combustion engine unit outputs power, and the hybrid power control unit controls the AMT gearbox to achieve gear shifting according to the collected vehicle speed, throttle opening, and battery power, wherein during the upshift process, the motor unit starts to compensate for the power shift, and after the gear shift is completed, the motor unit stops working, and during the deceleration and downshift process, the energy recovery system is started, and the power is transmitted to the rear wheel through the internal combustion engine unit, the AMT gearbox, the motor unit, and the transmission shaft assembly in sequence;

[0020] In pure electric mode, the electric motor unit outputs power, the internal combustion engine unit is in a flameout state, and the hybrid control unit controls the AMT transmission to be in a neutral state. The hybrid control unit collects vehicle speed, throttle opening, and battery power to control the electric motor unit to output power, and the power is transmitted to the rear wheels through the electric motor unit and the transmission shaft assembly in sequence;

[0021] In hybrid mode, the internal combustion engine unit and the electric motor unit are started at the same time. The hybrid power control unit collects vehicle speed, throttle opening, and battery power to control the AMT transmission shifting. The electric motor unit compensates power when upshifting, and the energy recovery system for deceleration and downshifting is activated. The electric motor unit compensates power according to the vehicle speed and the internal combustion engine unit output. The power is transmitted to the rear wheels through the internal combustion engine unit, AMT transmission, electric motor unit, and drive shaft assembly in sequence.

[0022] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A shaft-driven scooter hybrid engine structure, characterized in that: The invention comprises an internal combustion engine unit (1), an automatic transmission mechanism (AMT) gearbox (2), an electric motor unit (3), and a transmission shaft assembly (4); the output shaft of the internal combustion engine unit (1) is connected to a clutch assembly (5); the clutch assembly (5) is located in a housing of the AMT gearbox (2); the output shaft of the clutch assembly (5) and the input shaft of the AMT gearbox (2) are gear-driven; the electric motor unit (3) is arranged in the housing of the AMT gearbox (2); one end of the central axis of the electric motor unit (3) is connected to the output shaft of the AMT gearbox (2); and the other end of the central axis of the electric motor unit (3) and the transmission shaft assembly (4) are gear-driven.

2. The shaft-driven scooter hybrid engine structure according to claim 1, characterized in that: It also includes a hybrid power control unit and an energy management system. The hybrid power control unit is used to control the working states of the internal combustion engine unit (1) and the electric motor unit (3). The energy management system includes a battery state monitoring module, an energy recovery control module, and a charging management module.

3. The shaft-driven scooter hybrid engine structure according to claim 1, characterized in that: The AMT gearbox (2) comprises a gear shift actuator and a gear set.

4. The shaft-driven scooter hybrid engine structure according to claim 3, characterized in that: The gear shift actuator comprises a shift fork drive assembly (6) arranged in a housing of the AMT gearbox.

5. A shaft-driven scooter hybrid engine control method, characterized in that: In fuel mode, the internal combustion engine unit outputs power, and the hybrid control unit controls the AMT gearbox to shift gears according to the collected vehicle speed, throttle opening, and battery power. During the upshift process, the electric motor unit starts to compensate for the power shift, and the electric motor unit stops working after the gear shift is completed. During the deceleration and downshift process, the energy recovery system starts, and the power is transmitted to the rear wheels through the internal combustion engine unit, AMT gearbox, electric motor unit, and drive shaft assembly in sequence; In pure electric mode, the electric motor unit outputs power, the internal combustion engine unit is in a flameout state, and the hybrid control unit controls the AMT transmission to be in a neutral state. The hybrid control unit collects vehicle speed, throttle opening, and battery power to control the electric motor unit to output power, and the power is transmitted to the rear wheels through the electric motor unit and the transmission shaft assembly in sequence; In hybrid mode, the internal combustion engine unit and the electric motor unit are started at the same time. The hybrid power control unit collects vehicle speed, throttle opening, and battery power to control the AMT transmission shifting. The electric motor unit compensates power when upshifting, and the energy recovery system for deceleration and downshifting is activated. The electric motor unit compensates power according to the vehicle speed and the internal combustion engine unit output. The power is transmitted to the rear wheels through the internal combustion engine unit, AMT transmission, electric motor unit, and drive shaft assembly in sequence.

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