BEV & E-GMP Are The Way Forward: Hyundai.
In a major step forward in the electric car industry, Hyundai Motor Group has unveiled its new Electric-Global Modular Platform or E-GMP. It will produce a BEV or Battery Electric Vehicle in a dedicated move to create a core platform to develop the technology.
To be launched in 2021, the program will form the basis for Hyundai’s next Ioniq, a dedicated BEV from Kia, and potentially other models for the brands. E-GMP is intended to be a bespoke platform for the company’s BEV range, having benefits such as increased development flexibility, powerful driving performance, increased driving range, strengthened safety features, and more interior space for occupants and luggage.
Driving performance will allow a sport-oriented model to achieve sub-four second 100kph times, whilst the platform can accommodate SUVs, sedans, or Crossover Urban Vehicles. By using a system called modularisation, it makes for better building and cost amortisation. The chassis design can be shrunk or stretched to accommodate the battery placement and therefore ensure weight distribution is always as appropriate as possible. A five-link rear suspension system, which is typically used for mid and large sized vehicle segments, and the world’s first integrated drive axle (IDA), which combines wheel bearings with the drive shaft to transmit power to the wheels, enhance ride comfort and handling stability.
The structure will be ultra-high strength steel for rigidity, with hot-stamped steel parts adding to the torsional strength. Energy absorption can then be designed into the structure as needed. This includes the front of the chassis where the A-pillar can deform to spread energy from an impact and thereby diverting kinetic energy from the floor mounted battery and front engine.
Short overhangs maximise interior packaging, and assisted by the flat battery floor, means any vehicle can be tweaked to suit a specific use target. this could include seating layout and positioning for leg room.
Drive will come from an integrated, single module, unit, which is able to raise the rotational speed by up to 70% over existing units. The module is comprised of a motor, EV transmission, and an inverter. A smaller size means less weight and yet efficiency isn’t compromised.
“Today our front-wheel driven Hyundai and Kia BEVs are already among the most efficient ones in their segments.” said Albert Biermann, President and Head of R&D Division for Hyundai Motor Group. “With our rear-wheel driven based E-GMP, we are extending our technological leadership into segments where customers demand excellent driving dynamics and outstanding efficiency.”
Fayez Abdul Rahman, Senior Vice President of Vehicle Architecture Development Center for Hyundai Motor Group: “E-GMP is the culmination of years of research and development and brings together our most cutting-edge technologies. Our BEV line-up will evolve and be strengthened by this innovative new platform.”
Extra cooling has allowed Hyundai to redevelop their battery system. It is denser and more compact, with up to 10% more density in comparison to what is currently available. Linked to the engine unit is the inverter power module that uses Silicon Carbide material. This enhances efficiency by two to three percent and then allow a range extension from that battery of up to 5%. The battery module itself will be a standardised model, with a pouch-type cell structure that can be tailored as per design specification.
Drive itself will be predominantly rear wheel oriented. All wheel drive configuration on the E-GMP platform will be available. Hyundai will employ a EV transmission disconnector that “talks” to the front motor if fitted, and can switch, on the fly, between two and all wheel drive.
As charge point infrastructure changes, Hyundai has future-proofed with an investment in a European based network, IONITY. The name also fits the IONIQ branding for Hyundai’s current EV range. IONITY currently offer 308 high power charge points that can charge at up to 350kW. There are 51 extra stations under construction with a view to offering 400 points by 2022.
E-GMP bring some forward looking tech. Charging at 800V is standard, with a switch to 400V available if necessary. The system has a patent on the technology as there are no additional equipment requirements to “step down” or “step up” the charge. A fully charged battery can provide over 500km of range, and can charge to 80% in just 18 minutes and in five minutes provide up to 100km of range.
There is also a new ICCU, or Integrated Charging Control Unit. This brings what is called V2L, or Vehicle To Load. Instead of a single path, being from a charge source to the BEV, a E-GMP vehicle can discharge to another electricity requiring source from 110V to 220V including another EV. Maximum output is rated as 3.5kW which Hyundai says could power a 55-inch TV for up to 24 hours.
Sibling company Kia is also part of the program, employing its “Plan S” strategy. One key aim is 20% of their vehicles to be EV in sales by 2025 and they are aiming to have seven dedicated BEVs by 2027.
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