Hyundai-Kia's Uni Wheel System: Paving the Way for Revolutionary EV Designs
This new system replaces traditional drive shafts and CV joints with a more compact setup, offering more cabin space and altering the vehicle’s design dynamics. Each wheel has a small motor connected via a short drive shaft and a planetary gear configuration involving sun gear, pinion gears, and ring gear, ensuring efficient power transmission. This design enables consistent power transmission efficiency, regardless of wheel movement, a marked improvement over traditional drivetrain systems.
The Uni Wheel system offers several advantages, including increased durability, higher torque, and the ability to control torque at each wheel independently for enhanced handling. The resultant design flexibility allows for more spacious interiors, potentially accommodating more seats, cargo capacity, and even larger battery installations to extend EV ranges.
Hyundai and Kia focus on refining the Uni Wheel's reduction gear ratio and lubrication and cooling systems. The timeline for its production integration remains uncertain, though eight patents related to the technology have been filed in South Korea, the US, and Europe.
This development is particularly significant in the global electric powertrain market, valued at USD 96.7 billion in 2023 and projected to reach USD 230.5 billion by 2030 (at a CAGR of 13.2%). The market is driven by government incentives, increasing demand for electric cars, and the declining cost of electric powertrains. Challenges such as the high cost of electronic components and the scarcity of charging infrastructure are notable restraints. However, advancements in lithium-ion battery technology and the growing prominence of players like Samsung SDI, CATL, LG Energy Solution, and Panasonic fuel market growth.
Asia Pacific is the fastest-growing electric powertrain market, with China and India leading the surge in EV demand, supported by government policies and investments in charging infrastructure. Key global players in this market include Robert Bosch Gmbh, Mitsubishi Electric, Magna International Inc., Continental AG, and Hitachi Astemo Ltd., known for their extensive product ranges and strategic market approaches.
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Hyundai and Kia focus on refining the Uni Wheel's reduction gear ratio and lubrication and cooling systems.
advancements in lithium-ion battery technology and the growing prominence of players like Samsung SDI, CATL, LG Energy Solution, and Panasonic fuel market growth??.
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