![]() ![]() ![]() For ETCR, it used four motors producing over 500 kW. PURE ETCRĬraig Daniel says that for Formula E, Omni used a dual motor design providing 250 kW power capacity. MAGELEC Propulsion, a division of Omni Powertrain Technologies, is providing the Electric Drivetrain Units for the world’s first all-electric, multi-brand touring car series known as PURE ETCR. It did so while working with Formula E-a car racing series which utilizes the latest electric vehicle technology.įrom there, the company got involved with the Electric Touring Car program-known as PURE ETCR-where it is supplying the powertrain technology for all of the electric race cars being developed by various manufacturers. The company’s objective was to learn about and maximize the performance potential of the motor in this frame size in terms of torque, power and thermal capacity. When Omni first developed its axial flux motor, it did so using a 21 cm (8.3 in.) frame size motor architecture. In this instance, it combines a 34 KNm gearbox with a single M27 motor which is liquid cooled. Pictured is an example of a hub drive that would be used in off-highway or industrial applications. Doing so allows the production process to be more controlled, ensuring manufacture of a product as the company intended. “That's a technology that we've also been working on developing ourselves.”ĭeveloping the industrial IP path and utilizing a vertically integrated manufacturing process is equally as important as the design of the motor, says Craig Daniel. “Nobody has an automated process for actually pushing the copper into the stater,” he says. However, no one has yet industrialized this type of motor design. In addition to spinning faster, which requires more gear reductions, radial motors are longer in length than the Omni axial flux motor, making integration into some machine designs more difficult.Ĭraig Daniel says there are other axial flux motor designs on the market, and like any technology, each has their own unique attributes. “And because we have a larger diameter, but shorter length motor, we actually create a pretty nice torque curve over speed compared to a radial motor.” “The big advantage compared to a radial motor is that torque is a function of the energy applied or the force applied at distance from the center,” says Craig Daniel. As the stators are energized, they cause the disc-shaped rotor to spin between them. Omni’s axial flux product line, however, eliminates the cylinder and tube designs of radial motors and instead utilizes a disc shape-like a pancake-for the rotor and two plate-like stators. “This the common motor technology of the world for the last 100 years.” “When you energize that you can make the rotor spin, and then in reverse flow turn it into a generator,” he says. The stator or armature of the motor is a tube where all of the copper wires are located. The rotor is the rotating portion of the motor and is typically made of several steel laminations it may also have magnets inside of it and is shaped like a big cylinder, explains Craig Daniel. ![]() Radial flux motor designs are comprised of two main elements, a rotor and a stator. “For the off-highway industry, we're working to pair our motors with different types of drivetrains, swing drives or auxiliary drive applications because we can provide high torque at low speed very efficiently with the electric energy available.” Why axial flux versus radial flux? He says Omni believes its axial flux motor design can bring some positive attributes to high-torque applications. In general, the axial flux design is torque dense whereas a radial flux motor is considered power dense, explains Craig Daniel. Omni, however, has developed an axial flux motor which it believes will provide benefits to a variety of industries, including the heavy-duty on- and off-highway equipment markets. While there are a variety of electric motor options currently in the market, the majority of the global market is composed of radial flux motor designs, says Craig Daniel, co-owner and partner of Omni Powertrain Technologies. Integral to many electric powertrains are the electric motors. This is due not only to advancements in technology, but also evolving needs and application uses. The push toward electrification and other power alternatives has brought about several new technological developments in recent years. ![]()
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