Extended-range motorcycle based on double-hub motor

Abstract

The invention discloses an extended-range motorcycle based on a double-hub motor. The extended-range motorcycle is composed of a vehicle control unit (VCU), a front hub motor, a rear hub motor, a range extender, a generator and the like. The vehicle uses a VCU to realize whole vehicle control, control objects comprise a front hub motor, a rear hub motor, a range extender, a generator and the like, and a whole vehicle control circuit is constructed. The vehicle can autonomously set the SOC value of the battery, the VCU detects the electric quantity of the battery to control the start and stop of the range extender, the range extender drives the generator to operate to charge the battery, when the vehicle is in a downhill or deceleration state, the battery can be reversely charged through the kinetic energy recovery function of the front hub motor and the rear hub motor, and the vehicle detects the opening degree of an electric door through the VCU to supply power to the front hub motor and the rear hub motor. And a whole-vehicle high-voltage circuit is constructed. According to the vehicle, the electric quantity of the storage battery is detected through the VCU to control the generator to charge the storage battery, when the vehicle is parked for a long time and the storage battery is lack of electricity, the battery is controlled through the VCU to directly supply power to the storage battery, the storage battery is controlled through the VCU to supply power to accessories of the whole vehicle, and a low-voltage circuit of the whole vehicle is constructed.

Description

Technical Field

[0001] The present invention relates to the field of new energy motorcycles, and in particular to a range-extended motorcycle based on dual-hub motors. Background Art

[0002] Traditional fuel-powered motorcycles suffer from high fuel consumption and high exhaust emissions, while pure electric motorcycles have short ranges and long charging times. Advances in permanent magnet materials, motor control technology, and heat dissipation techniques have led to improved performance of in-wheel motors. Extended-range hybrid systems combine the advantages of pure electric drive and fuel engine power generation to address range concerns and reduce exhaust emissions. Dual in-wheel motors can operate independently or collaboratively, improving power performance, energy recovery efficiency, and providing redundant drive support. Advances in electronic control technology enable motorcycle control systems to precisely control the operation of dual in-wheel motors. However, the integration of this system faces key technical challenges, including heat dissipation challenges associated with the high-speed and high-power operation of the in-wheel motors, the impact of increased unsprung mass on suspension performance, and the complex control strategy required to coordinate dual motor drive, range extender power output, and battery management. Current technological developments are focusing on lightweighting, intelligent control algorithms, and integrated thermal management to realize the practical application and commercialization of this technology in the field of high-performance, long-range electric motorcycles. Summary of the Invention

[0003] This invention aims to overcome the range anxiety of pure electric motorcycles and improve energy efficiency. This technology, based on dual-hub motors, has emerged as a range-extended motorcycle technology. This technology combines two core elements: First, the dual-hub motor technology integrates power, transmission, and braking within the wheel, significantly simplifying the mechanical structure, freeing up vehicle body space, and achieving zero transmission loss and highly efficient energy recovery (such as brake energy recovery). Second, the range-extended system uses the internal combustion engine to drive the generator under efficient and constant operating conditions to generate electricity to charge the battery, forming a series power architecture with "pure electric drive as the primary function and oil-to-electricity conversion as the secondary function," effectively overcoming battery limitations and significantly reducing fuel consumption.

[0004] The present invention solves the above technical problems through the following technical means: A range-extended motorcycle based on dual-hub motors comprises a frame (1), a VCU (2), a battery (3), a storage battery (4), a front hub motor (5), vehicle accessories (6), a steering system (7), a fuel tank (8), a range extender (9), a large pulley (10), a V-belt (11), a small pulley (12), a generator (13), a suspension system (14), a rear hub motor (15), and a braking system (16); The battery (3), storage battery (4), front wheel hub motor (5), vehicle accessories (6), steering system (7), fuel tank (8), range extender (9), suspension system (14), rear wheel hub motor (15) and brake system (16) are as follows: Figure 1The vehicle is mounted on a vehicle frame (1); the VCU (2) is mounted below an integrated base of a range extender (9); the generator (13) is mounted forwardly above the integrated base of the range extender (9), and drives a large pulley (10) mounted on the range extender (9) and a small pulley (12) mounted on the generator (13) through a V-belt (11).

[0005] The parameters of the extended-range motorcycle based on dual-hub motors are: top speed 130km / h, pure electric range 100km, low-battery fuel consumption 1.5L / 100km, and comprehensive range 700km.

[0006] The VCU (2) can monitor the vehicle status in real time through wheel-end sensors on the front wheel hub motor (5) and the rear wheel hub motor (15); when the vehicle is in a high-load and slippery road condition, the front wheel hub motor (5) and the rear wheel hub motor (15) are used to distribute the front and rear axle power; when the vehicle is in a low-load condition, only the rear wheel hub motor (15) is started.

[0007] The battery (3) uses a lithium iron phosphate cell, and its parameters are: length 300 mm, width 260 mm, thickness 170 mm, voltage 96 V, and capacity 32 Ah.

[0008] The battery (4) uses a lithium iron phosphate battery cell, and its parameters are: length 113mm, width 60mm, thickness 86mm, voltage 12V, and capacity 4.5Ah.

[0009] The size of the front hub motor (5) is 14 inches and the rated power is 3 kW.

[0010] The range extender (9) is a V2 gasoline engine with a cylinder angle of 60 degrees, and its parameters are: displacement 250cc, rated power 18kw, and peak power 20kw.

[0011] The rated power generation of the generator (13) is 16 kW, and the peak power generation is 18 kW. The VCU (2) can be used to control different powers to supply power to the battery (3), the storage battery (4), the front wheel hub motor (5), and the rear wheel hub motor (15).

[0012] The size of the rear wheel hub motor (15) is 14 inches and the rated power is 12 kW.

[0013] The battery (3) can independently set the SOC value, and the start and stop of the range extender (9) is controlled by detecting the power of the battery (3) through the VCU (2). The range extender (9) drives the generator (13) to operate through the belt drive for charging the battery (3); when the vehicle is in a downhill or decelerating state, the kinetic energy recovery function of the front hub motor (5) and the rear hub motor (15) can also be used to realize reverse charging of the motor to the battery (3); 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.

[0014] The battery (4) can be charged by controlling the generator (13) through the VCU (2) to detect the amount of electricity. When the battery (4) is depleted due to long-term parking of the vehicle, the battery (3) can be controlled by the VCU (2) to directly supply power to the battery (4).

[0015] This technical solution has the following advantages: 1. The dual-wheel hub motors can independently control the driving torque of the front and rear wheels, enabling the motorcycle to achieve stronger power output during starting, acceleration, and climbing, improving overall dynamic performance. During braking or deceleration, the dual-wheel hub motors can simultaneously operate in a power generation state, converting more kinetic energy into electrical energy for recycling and storage, significantly improving energy recovery efficiency and extending the range. 2. Extended-range motorcycles can solve the current range anxiety and achieve a pure electric driving experience; 3. Extended-range technology allows for more use of pure electric mode in congested urban traffic conditions, reducing frequent engine starts and stops, effectively reducing fuel consumption and exhaust emissions; the range extender always operates in the optimal thermal efficiency range, avoiding the high fuel consumption problem of fuel vehicles at low speeds, and the overall energy consumption is lower than that of traditional fuel motorcycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the range-extended motorcycle based on dual-hub motors of the present invention.

[0017] Figure 2 The diagram is a circuit diagram of a range-extended motorcycle based on dual-hub motors according to the present invention.

[0018] Figure 3 It is a structural schematic diagram of the frame of the range-extended motorcycle based on dual-hub motors of the present invention.

[0019] Figure 4 It is a structural schematic diagram of a range extender of a range-extended motorcycle based on a dual-hub motor according to the present invention.

[0020] Figure 5 It is a schematic diagram of the installation of the VCU and the electric motor of the range-extended motorcycle based on the dual-hub motor of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments: like Figure 1-Figure 5 As shown, the present invention is a range-extended motorcycle based on a dual-hub motor, comprising a frame (1), a VCU (2), a battery (3), a storage battery (4), a front hub motor (5), vehicle accessories (6), a steering system (7), a fuel tank (8), a range extender (9), a large pulley (10), a V-belt (11), a small pulley (12), a generator (13), a suspension system (14), a rear hub motor (15), and a braking system (16); Specifically, the battery (3), the storage battery (4), the front wheel hub motor (5), the vehicle accessories (6), the steering system (7), the fuel tank (8), the range extender (9), the suspension system (14), the rear wheel hub motor (15) and the braking system (16) are as follows: Figure 1 The vehicle is mounted on a vehicle frame (1); the VCU (2) is mounted below an integrated base of a range extender (9); the generator (13) is mounted forwardly above the integrated base of the range extender (9), and drives a large pulley (10) mounted on the range extender (9) and a small pulley (12) mounted on the generator (13) through a V-belt (11).

[0022] The parameters of the extended-range motorcycle based on dual-hub motors are: top speed 130km / h, pure electric range 100km, low-battery fuel consumption 1.5L / 100km, and comprehensive range 700km.

[0023] The VCU (2) can monitor the vehicle status in real time through wheel-end sensors on the front wheel hub motor (5) and the rear wheel hub motor (15); when the vehicle is in a high-load and slippery road condition, the front wheel hub motor (5) and the rear wheel hub motor (15) are used to distribute the front and rear axle power; when the vehicle is in a low-load condition, only the rear wheel hub motor (15) is started.

[0024] The battery (3) uses a lithium iron phosphate cell with the following parameters: length 300 mm, width 260 mm, thickness 170 mm, voltage 96 V, and capacity 32 Ah.

[0025] The battery (4) uses a lithium iron phosphate cell, and its parameters are: length 113mm, width 60mm, thickness 86mm, voltage 12V, and capacity 4.5Ah.

[0026] The size of the front hub motor (5) is 14 inches and the rated power is 3kw.

[0027] The range extender (9) is a V2 gasoline engine with a cylinder angle of 60 degrees, and its parameters are: displacement 250cc, rated power 18kw, and peak power 20kw.

[0028] The rated power generation of the generator (13) is 16 kW, and the peak power generation is 18 kW. The VCU (2) can be used to control different powers to shunt power to the battery (3), the storage battery (4), the front wheel hub motor (5), and the rear wheel hub motor (15).

[0029] The size of the rear wheel hub motor (15) is 14 inches and the rated power is 12kw.

[0030] The battery (3) can independently set the SOC value, and the VCU (2) detects the battery (3) power to control the start and stop of the range extender (9), and the range extender (9) drives the generator (13) to operate through the belt drive for charging the battery (3); when the vehicle is in a downhill or deceleration state, the kinetic energy recovery function of the front hub motor (5) and the rear hub motor (15) can also be used to realize reverse charging of the motor to the battery (3); 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.

[0031] The battery (4) can be charged by controlling the generator (13) through the VCU (2) to detect the amount of electricity. When the battery (4) is depleted due to long-term parking of the vehicle, the battery (3) can be controlled by the VCU (2) to directly supply power to the battery (4).

[0032] The above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that the technical solutions of the present invention may be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and such modifications or equivalents shall be encompassed by the claims of the present invention. Any techniques, shapes, and structures not described in detail herein are well known.

Claims

1. A range-extended motorcycle based on dual-hub motors, comprising a frame (1), a VCU (2), a battery (3), a storage battery (4), a front hub motor (5), vehicle accessories (6), a steering system (7), a fuel tank (8), a range extender (9), a large pulley (10), a V-belt (11), a small pulley (12), a generator (13), a suspension system (14), a rear hub motor (15), and a braking system (16); The battery (3), storage battery (4), front wheel hub motor (5), vehicle accessories (6), steering system (7), fuel tank (8), range extender (9), suspension system (14), rear wheel hub motor (15) and braking system (16) are mounted on the vehicle frame (1) as shown in FIG1 ; the VCU (2) is mounted below the integrated base of the range extender (9); the generator (13) is mounted in the forward direction above the integrated base of the range extender (9), and drives a large pulley (10) mounted on the range extender (9) and a small pulley (12) mounted on the generator (13) through a V-belt (11); The parameters of the extended-range motorcycle based on dual-hub motors are: top speed 130km / h, pure electric range 100km, low-battery fuel consumption 1.5L / 100km, and comprehensive range 700km.

2. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The VCU (2) can monitor the vehicle status in real time through wheel-end sensors on the front wheel hub motor (5) and the rear wheel hub motor (15); when the vehicle is in a high-load and slippery road condition, the front wheel hub motor (5) and the rear wheel hub motor (15) are used to distribute the front and rear axle power; when the vehicle is in a low-load condition, only the rear wheel hub motor (15) is started.

3. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The battery (3) uses a lithium iron phosphate cell, and its parameters are: length 300 mm, width 260 mm, thickness 170 mm, voltage 96 V, and capacity 32 Ah.

4. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The battery (4) uses a lithium iron phosphate battery cell, and its parameters are: length 113mm, width 60mm, thickness 86mm, voltage 12V, and capacity 4.5Ah.

5. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The size of the front hub motor (5) is 14 inches and the rated power is 3 kW.

6. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The range extender (9) is a V2 gasoline engine with a cylinder angle of 60 degrees, and its parameters are: displacement 250cc, rated power 18kw, and peak power 20kw.

7. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The rated power generation of the generator (13) is 16 kW, and the peak power generation is 18 kW. The VCU (2) can be used to control different powers to supply power to the battery (3), the storage battery (4), the front wheel hub motor (5), and the rear wheel hub motor (15).

8. The range-extended motorcycle based on dual-hub motors according to claim 1, characterized in that: The size of the rear wheel hub motor (15) is 14 inches and the rated power is 12 kW.

9. The battery (3) according to claim 2, characterized in that: The battery (3) can independently set the SOC value, and the start and stop of the range extender (9) is controlled by detecting the power of the battery (3) through the VCU (2). The range extender (9) drives the generator (13) to operate through the belt drive for charging the battery (3); when the vehicle is in a downhill or decelerating state, the kinetic energy recovery function of the front hub motor (5) and the rear hub motor (15) can also be used to realize reverse charging of the motor to the battery (3); 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 (4) according to claim 3, characterized in that: The battery (4) can be charged by controlling the generator (13) through the VCU (2) to detect the amount of electricity. When the battery (4) is depleted due to long-term parking of the vehicle, the battery (3) can be controlled by the VCU (2) to directly supply power to the battery (4).

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