Our Electric Mountain Bike (EMTB) is equipped with a compact yet high-torque Robin motor for propulsion. Utilizing an axial flux motor, the pedal shaft of the bicycle is aligned coaxially with the motor shaft, resulting in a more uniform distribution of power and weight for the e-bike. Constructed entirely from carbon fiber, coupled with a lightweight battery of just 21kg, it offers enhanced convenience and comfort for mountain biking enthusiasts.
Our electric folding bicycles are driven by the compact and robust Robin Motor. Through the implementation of an axial flux motor, the pedal shaft aligns with the motor shaft, promoting a balanced distribution of power and weight across the e-bike. Constructed entirely from carbon fiber, the frame weighs a mere 15 kilograms inclusive of batteries. Furthermore, the inclusion of both front and rear shock absorbers, a rare feature in the market, enhances the riding comfort for cyclists. Sized appropriately for urban commuting, the bike is conveniently foldable for ease of transport on public transit.
Our electric scooters are meticulously crafted, integrating a robust yet lightweight Robin In-wheel Axial Flux Motor to propel the vehicle. This engineering approach ensures that the scooter maintains a sleek appearance with minimal indication of an electric motor integration. Despite the motor's compact dimensions, it delivers formidable climbing capacity. Constructed entirely from carbon fiber, the vehicle’s weight is effectively contained under 13 kilograms. Enhanced with front and rear shock absorption systems, the scooter guarantees a luxuriously comfortable riding venture. Furthermore, the electric scooter boasts a foldable design, facilitating effortless portability and seamless integration with public transportation. Clients also have the option to select the dual electric motor configuration for both front and rear, paired with mountain bike wheels, ideal for mountainous terrains.
Our electric cargo bicycle showcases an exclusive front folding cargo basket design that effectively shortens the original 2.5-meter length to 1.6 meters, enhancing parking convenience and elevator access. Powered by the high-torque Robin Motor, this electric cargo bike incorporates an axial flux motor configuration, ensuring alignment between the pedal shaft and motor shaft, thereby optimizing the bike's spatial efficiency for increased cargo capacity. Crafted from a fusion of aluminum alloy and carbon fiber materials, the bicycle frame integrates front and rear shock absorbers to elevate rider comfort and deliver a smooth and pleasant riding venture.
Our multi-layer axial flux motor has been developed utilizing our patented technology for a clog-free generator. This design incorporates layers of coils and permanent magnets stacked alternately. Multiple motors with independent controls are integrated onto a single shaft for electric vehicle (EV) applications. During instances where the vehicle demands power, such as acceleration or climbing inclines, all motors will activate. Conversely, when lesser power is required, specific motors will deactivate to maintain high overall efficiency and preserve battery power. In scenarios where deceleration or descending occurs, these motors can function as generators to recharge the batteries. By employing hibernating motors and an energy re-collection feature, our motors sustain high overall efficiency, effectively doubling the cruising range compared to EVs equipped with conventional motors. Furthermore, the integration of artificial intelligence for road and driving condition analysis optimizes motor speed and torque performance, resulting in superior overall operation.
The Robin Motor team identified power losses within motors and subsequently developed a specialized motor tailored specifically for Electric Vehicles. Our innovative axial flux motor design, protected by a patent, effectively eliminates iron loss through a coreless structure. By employing a unique winding process, we ensure consistent coil shape while minimizing stator thickness. This slender coreless stator is flanked by rotors to generate robust axial magnetic flux without the need for silicon steel sheets or soft iron. Consequently, this enhancement significantly boosts power density and enhances the torque-to-volume ratio. Furthermore, our Multi-layer axial flux motor represents a brushless motor system powered by our proprietary 3-phase electric controllers. These custom controllers enable multiple axial flux motors to operate on a shared shaft, ultimately reducing mechanical losses related to bearings and minimizing frictional losses associated with brushes.
Our primary technological innovation involves the utilization of the "Multi-Layer Axial Flux Motor," a system where multiple disc motors are sequentially assembled along a common axis. These disk motors offer layered control functionalities that facilitate the management of the vehicle's operational status. Renowned for their elevated power density and robust torque output within a compact form factor, our motors are complemented by the proprietary Silicon Carbide Multi-Terminal Drive System. Through this integration, we can elevate motor speeds to 10,000 rpm by employing high-voltage inputs, ensuring a proficient conversion of electrical energy into kinetic force while optimizing overall operational efficiency.
All motors currently available in the market, be it for automotive, industrial, or a variety of other applications, belong to the category of radial flux motors. These motors, originally invented byThomas Davenport in 1837, form the backbone of motor technology today. However, the concept of axial flux motors was first introduced by the esteemed scientist Michael Faraday back in 1821.The axial flux motor was considered theoretically superior and more ideal compared to its radial counterpart. Nevertheless, due to technological limitations such as gap tolerances between rotor and stator components, compact heat dissipation challenges, rotor deflection issues under load, and the reliance on permanent magnets, the industry leaned towards the more established radial flux motors.Despite attempts by Nikola Tesla and others to explore axial flux motor concepts in the following years, they did not gain traction, and radial flux motors continued to dominate the market.
Axial flux motors provide a range of design advantages over radial flux motors, particularly in the electric vehicle sector. By relocating the motor from the axle to inside the wheel, axial flux motors allow for innovative drivetrain confgurations.
The growing interest in axial flux motors is evident in recent years. These motors, historically utilized in stationary applications like elevators and agricultural machinery, have seen a surge in development efforts to adapt them for electric motorcycles,airport transportation pods, cargo trucks, electric cars, and even aircraft.
While traditional radial flux motors have seen enhancements in weight and cost optimization through the use of permanent magnets or induction technologies, the unique characteristics of axial flux motors offer a promising alternative approach.
Axial flux motors are known for their compactness and shorter axial length compared to radial equivalents, making them particularly suitable for in-wheel motor applications where space is limited. The compact design of axial motors results in higher power and torque densities, reducing the need for excessively high operational speeds.
The superior efficiency of axial flux motors, often exceeding 96%, is attributed to the shorter,more efficient one-dimensional flux path, enabling performance levels comparable to, if not surpassing, the best radial flux motors in the market. The innovative design of axial flux motors, with fewer coil ends and potential for the use of centralized or segmented windings, opens up new possibilities for optimized efficiency and performance.