Unleashing the Power of EV Motors: A Revolutionary Brake System
Imagine a car that harnesses its immense power to not only propel you forward but also to bring you to a complete stop with precision and efficiency. This is the exciting concept that British firm YASA is bringing to life with its innovative axial flux motors.
YASA, a leading name in the automotive industry, has developed a groundbreaking technology that challenges traditional braking systems. Their axial flux motors, as featured in a recent LinkedIn post, offer a dual-purpose solution: generating an impressive 986 horsepower per wheel while simultaneously acting as rear brakes.
But here's where it gets controversial...
Regenerative braking, a hallmark of electric vehicles, reduces the reliance on mechanical brakes compared to internal combustion engines. This means that rear brakes can be downsized, as seen in the Volkswagen ID.4's innovative use of drum brakes. However, YASA is pushing the boundaries even further.
In a prototype in-wheel motor, YASA has combined its axial flux design with a compact inverter, resulting in a powerful and compact package. According to YASA's Chief Technical Officer, Tim Woolmer, the motor is designed to handle the thermal demands of a rear brake, with safety backups in place. This includes the option of an emergency brake or the ability to dump power from the motor, effectively turning it into a brake even in the event of electronic damage.
The advantages are clear: lower weight, more compact design, and a potential weight savings of 440 pounds when factoring in reduced braking hardware and other components. This is especially significant for in-wheel motors, as unsprung mass is a critical factor in their commercialization.
Axial flux motors, with their unique design, are much thinner than conventional radial flux motors. The magnetic force that drives them travels parallel to the axis of rotation, allowing for a more compact and efficient form factor. This makes them an ideal fit for wheel hubs, offering a seamless integration of power and braking.
And this is the part most people miss...
While several companies have explored in-wheel motors for EVs, YASA's technology stands out. Their axial flux design addresses one of the key challenges of in-wheel motors: unsprung mass. By reducing weight and optimizing the form factor, YASA's motors offer a more viable and efficient solution.
Although still in the prototype stage, YASA's vision has already caught the attention of Mercedes-Benz, which has showcased YASA motors in its Vision One-Eleven and AMG GT XX concepts. This partnership hints at a future where powerful, efficient, and innovative braking systems become the norm.
So, what do you think? Is this the future of braking technology? Or are there potential drawbacks that we should consider? Feel free to share your thoughts and opinions in the comments below! We'd love to hear your insights and spark a discussion on this exciting development in the automotive world.
