Hyundai Wia announced that it has begun mass production after the development of electronic differential limiter (e-LSD) based on rear wheel drive. Production is about 60,000 units a year at Hyundai Wia Changwon 2 Plant located in Seongsan-gu, Changwon City, Gyeongnam. This is the first time that Korean auto parts companies produce e-LSDs for rear wheel vehicles. The new e-LSD will be installed in the recently launched Genesis’s first SUV, the GV80.
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Developed by Hyundai Wia, the e-LSD is a part that actively controls the driving force transmitted to the wheels according to the driving situation of the car. The driving force of the left and right wheels is appropriately distributed according to the road surface and driving conditions to enable stable driving in any environment.
In a typical straight driving situation, the same power is allocated to the left and right sides of the wheel, and when one wheel can turn around, such as a sharp turning drive or a swamp, the power is concentrated on the other wheel to help escape. In particular, in the case of ‘UnderSteer’ and ‘OverSteer’, which do not rotate as the driver intended when turning a corner at high speed, the wheels are properly distributed to the left and right wheels to make driving stable.
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Hyundai Wia has raised the response rate, the most important part of e-LSD, to the world’s highest level. The hydraulic actuator was used to recognize the slight change in pressure in the vehicle according to road conditions and driving conditions, and to distribute the optimum driving power within 0.25 seconds. In addition, the maximum torque capacity that can be transmitted to the wheels is 235kgfm, which gives a strong force. This is an advantage that can be applied to most passenger and SUV vehicles.
Won Kwang-min, managing director of Hyundai Wia Vehicle Parts Research Center, said, “It is a product made by melting all the know-how accumulated by making front wheel e-LSD mounted on Hyundai i30N, Veloster N, etc.”
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HYUNDAI WIA will build a full-lineup system for four-wheel drive parts by mass-producing e-LSDs for rear wheel vehicles. In addition to the PTU, ATC and electronic couplings, which drive four wheels at the same time, e-LSDs can be applied to both front and rear vehicles. Based on this, Hyundai Wia plans to actively win orders for four-wheel drive parts for global vehicles. Indeed, the demand for 4-wheel drive and high-performance vehicles is increasing in the global auto market.
An official of Hyundai Wia said, “With the mass production of e-LSD for rear wheel vehicles, we have a complete production system for four-wheel drive parts that can cope with all vehicles.”
