Advancing H2 tech into the second generation

Hyundai just announced its latest hydrogen-powered electric SUV at the 2018 Consumer Electronics Show in Las Vegas. Dubbed the Nexo, the next-gen FCEV improves on the old Tucson FCEV in just about every way possible, even tossing in some updated autonomous driving tech to boot.

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Hyundai is getting in on the action with the debut of its latest powertrain and autonomous driving technologies, all packaged in a new SUV that Hyundai is calling the Nexo

The Consumer Electronics Show is the traditional destination for automotive technology of all stripes. Now, Hyundai is getting in on the action with the debut of its latest powertrain and autonomous driving technologies, all packaged in a new SUV that Hyundai is calling the Nexo. Going forward, the tall-riding five-door will act as the brand’s “technological flagship fuel cell vehicle.”

“Hydrogen energy is the key to building a more sustainable society,” said Dr. Woong-chul Yang, Vice Chairman at Hyundai. “Hyundai Motor Company has already taken a lead in hydrogen technology with the introduction of Tucson fuel cell. Yet as another result of this earth-saving effort, today, I am so proud to introduce to you our second-generation Fuel Cell Electric Vehicle which is a culmination of our cutting-edge technologies.”

Hyundai Introduces Its Latest Fuel Cell Vehicle At CES 2018, Calls It The “Nexo” Exterior Wallpaper quality
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Peak output is now rated 120 kW and 291 pound-feet compared to the 100 kW and 221 pound-feet you get in the Tucson.

Indeed, Hyundai has been pretty busy as of late refining its fuel cell tech, as evidenced by the list of improvements presented alongside the Nexo. Under the skin is Hyundai’s fresh dedicated fuel cell electric vehicle architecture, which boasts a lower weight, more cabin space, and better accommodation for the fuel cell system layout compared to the older Tucson FCEV.

Power levels from the electric motors and overall performance have increased, with the entire powertrain boasting a lower weight and more compact packaging as well. The result is a 20 percent decrease to the 0-to-60 mph time as compared to the Tucson, down to 9.5 seconds versus 12.5 seconds in the older model. Peak output is now rated 120 kW and 291 pound-feet compared to the 100 kW and 221 pound-feet you get in the Tucson.

Hyundai Introduces Its Latest Fuel Cell Vehicle At CES 2018, Calls It The “Nexo” Exterior
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The result is a 20 percent decrease to the 0-to-60 mph time as compared to the Tucson, down to 9.5 seconds versus 12.5 seconds in the older model.

Hyundai says the Nexo is ready for the real world, proving its impressive cold-start capability after enduring -20 degrees Fahrenheit nights, as well as steep inclines in temperatures over 120 degrees Fahrenheit. Hyundai also says it improved its fuel cell tech’s ability to handle high altitudes, while refueling times are down to five minutes to top off. A full tank will net you 370 miles before your next fill up, improving on the Tucson’s range by more than 100 miles.

Sit inside the cabin, and you’ll notice a reduction in ambient noises. And, as you might expect, the Nexo also includes Hyundai’s latest Advanced Driver Assistance Systems for a bit extra autonomy, like self-parking, lane-keep assist, and blind-spot monitor. The features are upgrades over existing tech offerings, with the blind-spot monitor displaying a view of the blind-spots via cameras, which feed the gauge cluster behind the steering wheel. Meanwhile the Remote Smart Parking Assist can “autonomously park or retrieve itself from a parking space with or without a driver in the car.”

Finally, the Nexo is significantly larger than the Tucson.

The latest SUV is part of the brand’s plan to usher in 18 new “eco-friendly” models by 2025. A production version is slated to hit select markets sometime early this year.

Hyundai Introduces Its Latest Fuel Cell Vehicle At CES 2018, Calls It The “Nexo” Exterior
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Engine And Powertrain Specs Hyundai Nexo Hyundai Tucson FCEV
Fuel Cell 95 kW 100 kW
Battery 40 kW 24 kW
Torque 291 pound-feet 221 pound-feet
0-to-60 mph 9.5 seconds 12.5 seconds
Range 370 miles 265 miles
Hyundai Introduces Its Latest Fuel Cell Vehicle At CES 2018, Calls It The “Nexo” Exterior
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Exterior Dimensions Hyundai Nexo Hyundai Tucson FCEV
Length 183.9 inches 173.6 inches
Width 73.2 inches 71.7 inches
Height 64.2 inches 65.2 inches
Wheelbase 109.8 inches 103.9 inches

References

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Press release

Hyundai Motor today announced that NEXO will be the name of its all-new, dedicated Fuel Cell EV during a press conference at CES 2018, and disclosed Advanced Driver Assistance Systems (ADAS) that expand its autonomous driving potential. NEXO is the technological flagship of Hyundai’s growing eco-vehicle portfolio and marks Hyundai’s continued momentum toward having the industry’s most diverse CUV powertrain lineup.

The NEXO model will spearhead Hyundai Motor’s plans to accelerate development of low emission vehicles, in line with Hyundai Motor Group’s renewed goal of introducing 18 eco-friendly models to global markets by 2025. This new development roadmap also represents the next step for Hyundai Motor toward realizing the ultimate ambition of creating a cleaner environment through eco-friendly vehicles.

Blind-spot View Monitor (BVM)
Hyundai’s Blind-spot View Monitor is an industry-first technology. It shows drivers on a center cluster screen the rear and side views of NEXO using cameras while changing lanes in either direction. The system uses wide angle surround view monitors (SVM) on each side of the vehicle to monitor areas that cannot be seen by a traditional rearview mirror. Hyundai is the first automaker to provide drivers video footage from both sides of the vehicle.

Lane Following Assist (LFA) and Highway Driving Assist (HDA)
Lane Following Assist is an all-new technology for Hyundai and it debuts in the NEXO. LFA automatically adjusts steering to help keep NEXO centered in its lane of travel. LFA can keep NEXO centered at speeds between 0 and 90 miles per hour on both highways and city streets. When paired with Hyundai’s Highway Driving Assist (HDA) which utilizes sensors and map data to ensure safe operation as well as automatically adjust speed in limited environments, drivers will be able to traverse long distances with greater ease and improved safety.

Remote Smart Parking Assist (RSPA)
RSPA enables NEXO to autonomously park or retrieve itself from a parking space with or without a driver in the car. The RSPA system can even back a NEXO into a parking spot by itself with a touch of a button from the driver. When faced with any challenging parking scenario, NEXO drivers will be able to park with complete confidence and accuracy.

Hyundai NEXO
“Hydrogen energy is the key to building a more sustainable society. Hyundai Motor Company has already taken a lead in hydrogen technology with introduction of Tucson fuel cell,” said Dr. Woong-chul Yang, Vice Chairman, Hyundai Motor Company. “Yet as another result of this earth-saving effort, today, I am so proud to introduce to you our second-generation Fuel Cell Electric Vehicle which is a culmination of our cutting-edge technologies.”

NEXO is Hyundai’s second-generation of commercialized fuel cell electric vehicle that will be available in select markets around the world starting in early 2018. Improving upon the acclaimed Tucson FCEV, the NEXO has an estimated driving range of 370 miles, 105 more than its predecessor. Acceleration and power have increased to improve the overall performance.

Designed to handle extreme temperature and environments, the NEXO testing has proven that the vehicle is capable of starting after being subject to overnight temperatures of -20 degrees Fahrenheit. NEXO boasts cold start capability within 30 seconds which is an industry-leading achievement and the fuel cell system warms up faster for maximum performance. The NEXO also has excellent cooling performance on steep grades with temperatures exceeding 120 degree Fahrenheit.

Improvements in the air supply system, performance at high altitudes and refueling times, along with overall efficiency and fuel economy put the NEXO in a class all its own. In addition the NEXO has improved power density and durability comparable with a gasoline-powered vehicles.

Dedicated Architecture
For the first time ever, Hyundai’s fuel cell vehicle is built with a dedicated vehicle architecture. This architecture has many benefits including:

Lighter weight
Improved power-to-weight ratio
Faster acceleration from 0 to 60 mph than the Tucson FCEV
More cabin space
Allows the battery to be relocated to the trunk
Improved fuel cell system layout

NEXO vs. Tucson Fuel Cell System Architecture

NEXO’s fuel cell stack and battery have more net power to supply a more powerful motor
NEXO’s powertrain is lighter and has improved packaging
Improved hydrogen storage tanks

Powertrain Improvements

NEXO’s powertrain is lighter and takes up less space compared with Tucson FCEV
More efficient
Better module integration
Smaller
Lighter

Drivability

Peak acceleration is increased by 25 percent compared with Tucson FCEV
NEXO accelerates from 0 to 60 mph 20 percent faster than Tucson FCEV
NEXO has more torque than the Tucson FCEV

Range

NEXO has 30 percent more range than the Tucson FCEV
NEXO has an estimated range of 370 miles compared with the Tucson FCEV 265 miles

Quiet and Comfortable Driving Characteristics

NEXO maintains the quiet and comfortable driving characteristics of the Tucson FCEV
All of the NEXO’s moving parts are inside the engine bay which isolates the noise to one area

Durability

NEXO has the same level of durability as internal combustion engine vehicles

Hydrogen Storage

NEXO’s storage system is lighter than the Tucson FCEV
NEXO’s storage system has world-class storage density
NEXO can be refueled within five minutes

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