Uni Wheel by Hyundai and Kia: The EV Revolution

Jawad

30 Nov 2023

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Uni Wheel by Hyundai and Kia: The EV Revolution

The universal CV joint, a stalwart in the automotive industry, has dutifully transmitted power from engines to wheels, demonstrating a simple and reliable design. However, Hyundai and Kia are challenging this status quo with their innovative Uni Wheel concept, a departure from traditional CV joints.

The Uni Wheel, distinguished by its box-like structure, replaces inner and outer CV joints, addressing premature wear issues, particularly in vehicles with substantial ground clearance. By shortening the driveshaft and incorporating individual electric motors near the assembly, the Uni Wheel aims to enhance efficiency and longevity, though concerns about component placement and complexity arise.

While the Uni Wheel combines CV joint and drive reduction functions into a single unit, promising weight reduction and consistent power delivery, potential wear points within its intricate gear system pose concerns about noise, friction, and vibration. The scalability of the Uni Wheel for various applications, from cars to robots, is a notable advantage highlighted by Hyundai and Kia.

Questions linger about the Uni Wheel's suitability for steering axles, as the video demonstration raises uncertainty about accommodating full-lock steering. The presence of CV joints in the wheel-end boots further complicates the concept's simplification goal. Additionally, considerations for friction brakes and emergency stops add complexity to the Uni Wheel's design.

The Uni Wheel concept is undeniably intriguing, offering potential benefits like increased efficiency, reduced wear, and added in-frame space. However, its unresolved concerns, such as noise and steering suitability, underscore the need for further development and real-world testing by Hyundai and Kia.

A promising comparison emerges with ultra-light in-wheel motors, such as those by Orbis Electric, featuring integrated disc brakes. This technology claims to offer a simplified EV conversion for any vehicle in just three hours, warranting further investigation into its merits and drawbacks.

In conclusion, the Uni Wheel presents a captivating glimpse into unconventional engineering, promising benefits while raising legitimate concerns. As a conceptual innovation, its evolution and practical viability await further scrutiny and testing, paving the way for potential advancements in electric vehicle technology.

Hyundai Kia Uni Wheel Concept Hyundai and Kia Kia and Hyundai CV joints Electric Vehicles Automotive Innovation

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