At the International Powertrain Conference in Korea, Hyundai unveiled their future powertrain development strategy. The two-day conference was attended by as many as 1,200 engineers and academics from the world’s leading powertrain companies.
Hyundai exhibited the first four engines and two transmissions from its forthcoming line-up of new ‘Smart Stream’ powertrains. The Smart Stream technology incorporates number of advanced technologies that will help Hyundai meet its long-term global emissions goals. Developed by Hyundai’s award-winning engineers, the Smart Stream powertrains deliver improved fuel economy and reduced exhaust emissions. Beginning with the introduction of 1.6-liter petrol and diesel Smart Stream engines, the technology will eventually be available for all Hyundai vehicles. The improvements will enhance petrol and diesel engine efficiency, alongside the development of new plug-in hybrid and electric powertrains, plus the company’s next-generation Fuel Cell Electric Vehicle (FCEV).
First introduced at the Frankfurt Motor Show, the Smart Stream powertrains will allow Hyundai to respond to global changes in environmental regulation and meet customer demand for fun-to-drive cars. The word ‘Smart’ implies being smart in design, control, and operation, while ‘Stream’ refers to dynamic movement of mobility.
The next-generation Smart Stream technology optimizes the existing powertrain structure, with engine components reduced in size and weight to enhance fuel efficiency. With the advanced combustion techniques of Smart Stream engines, Hyundai aims to maximize thermal efficiency by up to 50% in the future.
Among the Smart Stream technology presented at the International Powertrain Conference is the first commercial application of Continuously Variable Valve Duration (CVVD) technology. In the Smart Stream G 1.6 turbo engine, the opening and closing of the cylinder valve is timed to best respond to various driving modes, such as eco-driving or dynamic driving.
Other new technology includes the Smart Stream eight-speed wet Dual-Clutch Transmission (DCT). Unlike conventional automatic transmissions, the dual-clutch system enables optimal shift response, with the eight-speed gearing and high-efficient hydraulic system delivering both faster acceleration performance and excellent fuel economy at the same time.
By 2022, Hyundai aims to develop an all-new Smart Stream powertrain line-up composed of 10 gasoline engines, six diesel engines, and six transmissions. The Korean make firmly believes that the internal combustion engine will maintain a strong presence in the market until 2025, as plug-in hybrid and electric powertrains start to receive wider acceptance. To respond to diversifying market needs, Hyundai will produce a greater proportion of electric, fuel cell, and plug-in hybrid powertrains – all alongside its highly efficient new Smart Stream internal combustion engines.
With its new Smart Stream powertrains, Hyundai also aims to build on its leadership position in advanced propulsion technology. While maintaining focus on improving the efficiency of its internal combustion engines is important, Hyundai will continue to lead the industry in Fuel Cell Electric Vehicles (FCEV), by investing in the development of its next-generation hydrogen powertrain.
The next FCEV from Hyundai will have a driving range of 800km, a maximum power output of 163PS, and the largest hydrogen storage density of any Fuel Cell vehicle on the market.