Extended-range rear-wheel-side motor motorcycle

Abstract

The invention discloses a range-extended rear wheel side motor motorcycle which is mainly composed of a range extender, a generator, a vehicle control unit (VCU), a wheel side motor and a battery. According to the vehicle, the range extender, the battery, the motor and the low-voltage circuit are managed in a unified mode through the single VCU, and the intelligent starting and stopping function of the range extender can be automatically started and stopped according to the preset SOC value. Meanwhile, the multi-mode switching function of independent switching of three modes of pure electricity, hybrid power and charging can be achieved. In addition, the electric quantity of the storage battery can be monitored, emergency charging of the battery to the storage battery is supported, and low-voltage power supply management of long-term parking and power shortage is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy motorcycles, in particular to a range-extending rear wheel-hub motor motorcycle. BACKGROUND

[0002] The technical background of the range-extending rear wheel-hub motor motorcycle is mainly driven by energy and environmental protection needs, the development of electric vehicle technology, the diversification of consumer needs, technological innovation and breakthroughs, market competition and industrial upgrading, and the improvement of related standards and regulations. The range-extending rear wheel-hub motor motorcycle is an innovative product in the process of electrification aimed at addressing the range anxiety, and its technical background is rooted in the mature experience of automotive range-extending systems and the efficient driving characteristics of wheel-hub motors. As the global energy crisis intensifies and environmental awareness improves, traditional fuel motorcycles are limited, while the range-extending rear wheel-hub motor motorcycle is gaining attention due to its low emission advantage. The progress of electric vehicle technology, such as the enhancement of battery range and the maturity of motor control technology, provides a foundation for the development of this motorcycle. The diversification of consumer needs for urban commuting and long-distance travel has prompted businesses to develop motorcycles that are quiet, low-maintenance, and long-range. In terms of technological innovation, the range-extending system and rear wheel-hub motor technology continue to optimize and upgrade, enhancing overall vehicle performance. The market is highly competitive, and this technology provides motorcycle companies with a differentiated competitive opportunity, driving industry technological upgrading and product structure adjustment. The improvement of related safety standards and noise standards has also promoted the improvement of safety and comfort in this motorcycle. SUMMARY

[0003] The purpose of the present application is to solve the problem of limited range of traditional pure electric motorcycles. The range-extending rear wheel-hub motor motorcycle generates electricity when the battery is low, extending the range. It also improves energy efficiency, optimizes energy distribution using kinetic energy recovery and VCU intelligent control. It enhances vehicle power performance and stability by using a wheel-hub motor to reduce mechanical losses and achieve precise power distribution. It reduces maintenance costs, extends battery life, and simplifies control logic. It meets the needs of various usage scenarios such as urban commuting and long-distance travel, achieving efficient energy management and coordinated operation of the master-slave circuit of the whole vehicle, ensuring stable and reliable operation of the vehicle under various working conditions.

[0004] The present application solves the above technical problems through the following technical means: The range-extending rear wheel-hub motor motorcycle comprises a frame (1), a front wheel (2), a braking system (3), a suspension system (4), a steering system (5), whole vehicle accessories (6), an oil tank (7), a range extender (8), a large pulley (9), a common V-belt (10), a small pulley (11), a generator (12), a VCU (13), a wheel-hub motor (14), a small chain wheel (15), a chain (16), a large chain wheel (17), a rear wheel (18), a battery (19), and a storage battery (20). The whole vehicle accessories include an instrument panel, whole vehicle lights, and spark plugs, etc. The front wheel (2), brake system (3), suspension system (4), steering system (5), whole vehicle accessories (6), oil tank (7), range extender (8), generator (12), VCU (13), wheel motor (14), rear wheel (18), battery (19) are installed on the frame (1) as shown. Figure 1 The large pulley (9) is installed on the range extender (8); the small pulley (11) is installed on the generator (12); the range extender (8) and the generator (12) are driven by the common V-belt (10); the small chain wheel (15) is installed on the wheel motor (14); the large chain wheel (17) is installed on the rear wheel (18); the wheel motor (14) and the rear wheel (18) are driven by the chain (16); the battery (19) is installed on the battery (19).

[0005] The parameters of the range-extender rear wheel motor motorcycle are: maximum speed 120km / h, power loss oil consumption 1.4L / 100km, pure electric endurance 110km, and comprehensive endurance 750km.

[0006] The capacity of the oil tank (7) is 9L.

[0007] The range extender (8) is a V2 gasoline engine with a cylinder included angle of 60 degrees, and its parameters are: displacement 250cc, rated power 16kw, and peak power 18kw.

[0008] The rated power of the generator (12) is 14kw, and the peak power is 16kw. The VCU (13) can control the power to be distributed to the wheel motor (14), the battery (19) and the battery (20).

[0009] The working voltage of the VCU (13) is 12V, and the size is 192mm long, 90mm wide and 41mm high.

[0010] The rated power of the wheel motor (14) is 12kw, and the peak power is 14kw.

[0011] The battery (19) uses lithium iron phosphate cells, and its parameters are: length 300mm, width 280mm, thickness 190mm, voltage 96V, and rated capacity 36Ah.

[0012] The battery (20) uses lithium iron phosphate cells, and its parameters are: length 115mm, width 90mm, thickness 68mm, voltage 12V, and rated capacity 5Ah.

[0013] The battery (19) can autonomously set the SOC value, the VCU (13) detects the battery (19) power to control the start-stop of the range extender (8), the range extender (8) drives the generator (12) to operate for charging the battery (19); when the vehicle is in a downhill or deceleration state, the reverse charging to the battery (19) can also be realized through the kinetic energy recovery function of the wheel motor (14); the non-running state can use 220V alternating current for slow charging with power less than 7kw and high voltage direct current for fast charging with power greater than 7kw; and the external discharge function with a power of 6kw is supported.

[0014] The storage battery (20) can be charged by the VCU (13) detecting the power to control the generator (12), and when the vehicle is parked for a long time, the storage battery (20) can also be directly powered by the battery (19) controlled by the VCU (13).

[0015] The technical scheme has the following advantages: 1. The wheel motor is installed on the frame (spring mass), which reduces the suspension burden compared with the hub motor (spring mass) and improves the high-speed stability; 2. The range extender not only solves the core pain point of the electric motorcycle, but also has lower use cost than the fuel vehicle and close to the environmental protection of the pure electric vehicle, providing a practical and forward-looking solution for two-wheel travel. The motorcycle can solve the current range anxiety and realize pure electric driving experience; 3. The range extender rear wheel motor motorcycle integrates four core advantages of worry-free endurance (range extension technology), precise power (wheel drive), convenient maintenance (external motor) and intelligent control (VCU centralized management). BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the range extender rear wheel motor motorcycle of the present application.

[0017] Figure 2 It is a circuit schematic view of the range extender rear wheel motor motorcycle of the present application.

[0018] Figure 3 It is a frame structure schematic view of the range extender rear wheel motor motorcycle of the present application.

[0019] Figure 4 It is a whole installation schematic view of the range extender rear wheel motor motorcycle of the present application Figure 1 .

[0020] Figure 5 It is a whole installation schematic view of the range extender rear wheel motor motorcycle of the present application Figure 2 .

[0021] Figure 6 It is a storage battery installation schematic view of the range extender rear wheel motor motorcycle of the present application. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments: like Figures 1-5 As shown, the range-extended rear wheel motor motorcycle of the present invention comprises a frame (1), a front wheel (2), a braking system (3), a suspension system (4), a steering system (5), all vehicle accessories (6), a fuel tank (7), a range extender (8), a large pulley (9), a common V-belt (10), a small pulley (11), a generator (12), a VCU (13), a wheel motor (14), a small sprocket (15), a chain (16), a large sprocket (17), a rear wheel (18), a battery (19), and a storage battery (20), wherein the all vehicle accessories include an instrument panel, vehicle lights, and spark plugs, etc. Specifically, the front wheel (2), the braking system (3), the suspension system (4), the steering system (5), the vehicle accessories (6), the fuel tank (7), the range extender (8), the generator (12), the VCU (13), the wheel motor (14), the rear wheel (18), and the battery (19) are as follows: Figure 1 The vehicle is mounted on a vehicle frame (1); the large pulley (9) is mounted on a range extender (8); the small pulley (11) is mounted on a generator (12); the range extender (8) and the generator (12) are driven by a common V-belt (10); the small sprocket (15) is mounted on a wheel-side motor (14); the large sprocket (17) is mounted on a rear wheel (18); the wheel-side motor (14) and the rear wheel (18) are driven by a chain (16); and the battery (20) is mounted on the battery (19).

[0023] The parameters of the extended-range rear-wheel motor motorcycle are: top speed 120km / h, fuel consumption when the battery is low 1.4L / 100km, pure electric range 110km, and comprehensive range 750km.

[0024] The capacity of the fuel tank (7) is 9L.

[0025] The range extender (8) is a V2 gasoline engine with a cylinder angle of 60 degrees, and its parameters are: displacement 250cc, rated power 16kw, and peak power 18kw.

[0026] The rated power generation of the generator (12) is 14 kW, and the peak power generation is 16 kW. The VCU (13) can be used to control different powers to be diverted to the wheel motor (14), the battery (19) and the storage battery (20).

[0027] The operating voltage of the VCU (13) is 12V, and its dimensions are 192mm in length, 90mm in width, and 41mm in height.

[0028] The wheel motor (14) has a rated power of 12kw and a peak power of 14kw.

[0029] The battery (19) uses a lithium iron phosphate battery cell with parameters of length 300mm, width 280mm, thickness 190mm, voltage 96V, and rated capacity 36Ah.

[0030] The battery (19) uses a lithium iron phosphate battery cell with parameters of length 300mm, width 280mm, thickness 190mm, voltage 96V, and rated capacity 36Ah.

[0031] The battery (19) can autonomously set an SOC value, and the VCU (13) detects the battery (19) power to control the start and stop of the range extender (8). The range extender (8) drives the generator (12) to operate to charge the battery (19) through a belt drive. When the vehicle is in a downhill or deceleration state, the battery (19) can also be reversely charged through the kinetic energy recovery function of the wheel motor (14). In a non-driving state, 220V alternating current can be used for slow charging with a power less than 7kw, and high-voltage direct current can be used for fast charging with a power greater than 7kw. The vehicle supports a 6kw external discharge function.

[0032] The battery (19) can also be directly powered by the battery (19) through the VCU (13) control when the vehicle is parked for a long time and the battery (20) is out of power.

[0033] The above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application. The technical, shape, and structure parts not described in detail in the present application are well-known technologies.

Claims

1. A range-extended rear wheel motor motorcycle, comprising a frame (1), a front wheel (2), a braking system (3), a suspension system (4), a steering system (5), vehicle accessories (6), a fuel tank (7), a range extender (8), a large pulley (9), a conventional V-belt (10), a small pulley (11), a generator (12), a VCU (13), a wheel motor (14), a small sprocket (15), a chain (16), a large sprocket (17), a rear wheel (18), a battery (19), and a storage battery (20), wherein the vehicle accessories include an instrument panel, vehicle lights, and spark plugs; The front wheel (2), brake system (3), suspension system (4), steering system (5), vehicle accessories (6), fuel tank (7), range extender (8), generator (12), VCU (13), wheel-side motor (14), rear wheel (18), and battery (19) are mounted on a vehicle frame (1) as shown in FIG1 ; the large pulley (9) is mounted on the range extender (8); the small pulley (11) is mounted on the generator (12); the range extender (8) and the generator (12) are driven by a common V-belt (10); the small sprocket (15) is mounted on the wheel-side motor (14); the large sprocket (17) is mounted on the rear wheel (18); the wheel-side motor (14) and the rear wheel (18) are driven by a chain (16); and the battery (20) is mounted on the battery (19); The parameters of the extended-range rear-wheel motor motorcycle are: top speed 120km / h, fuel consumption when the battery is low 1.4L / 100km, pure electric range 110km, and comprehensive range 750km.

2. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The capacity of the oil tank (7) is 9L.

3. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The range extender (8) is a V2 gasoline engine with a cylinder angle of 60 degrees, and its parameters are: displacement 250cc, rated power 16kw, and peak power 18kw.

4. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The rated power generation of the generator (12) is 14 kW, and the peak power generation is 16 kW. The VCU (13) can be used to control different powers to be diverted to the wheel motor (14), the battery (19), and the storage battery (20).

5. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The VCU (13) has an operating voltage of 12V and dimensions of 192mm in length, 90mm in width and 41mm in height.

6. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The rated power of the wheel-side motor (14) is 12 kW, and the peak power is 14 kW.

7. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The battery (19) uses a lithium iron phosphate battery cell, and its parameters are: length 300mm, width 280mm, thickness 190mm, voltage 96V, and rated capacity 36Ah.

8. The extended-range rear wheel motor motorcycle according to claim 1, characterized in that: The battery (20) uses a lithium iron phosphate battery cell, and its parameters are: length 115mm, width 90mm, thickness 68mm, voltage 12V, and rated capacity 5Ah.

9. The battery (19) according to claim 7, characterized in that: The battery (19) can independently set the SOC value, and the start and stop of the range extender (8) is controlled by detecting the power of the battery (19) through the VCU (13). The range extender (8) drives the generator (12) to operate through the belt drive for charging the battery (19); when the vehicle is in a downhill or deceleration state, the kinetic energy recovery function of the wheel-side motor (14) can also be used to achieve reverse charging of the battery (19); in a non-driving state, 220V AC can be used for slow charging with a power of less than 7kw and high-voltage DC can be used for fast charging with a power of more than 7kw; and an external discharge function with a power of 6kw is supported.

10. The battery (20) according to claim 8, characterized in that: The battery (20) can be charged by controlling the generator (12) by detecting the amount of electricity through the VCU (13). When the battery (20) is depleted due to long-term parking of the vehicle, the battery (19) can be controlled by the VCU (13) to directly supply power to the battery (20).

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