Spanish Seat Develops VW Group PHEV Prototype

VW’s Spanish division, Seat, has showcased a brand new plug-in hybrid prototype based on the new Leon.

Most Seat vehicles are based on VW products, like the Golf and Jetta. This means the technology in this prototype could easily be transferred to VW vehicles offered in North America, even though Seat has said there are no plans to put this prototype in production.

Called the SEAT Leon Verde, the prototype is the culmination of a four-year research project designed to facilitate the market introduction of an electric vehicle in Spain

More than 800 professionals from 16 private companies and 14 public bodies in Seat’s home country joined forces for Cenit Verde, which was established to develop sustainable alternatives for automotive energy and infrastructure.

Cenit Verde, which translates as Green Zenith, was headed by Seat’s Technical Center in Martorell with the support of Spain’s Ministry of Economy and Competitiveness.

Aside from the development of the Leon-based plug-in hybrid prototype car, the Cenit Verde project saw the development of an innovative smart car charging system. The system can automatically establish when the electricity grid is experiencing low demand, and can charge the car during those times only, using a lower rate.

The SEAT Leon Verde is the embodiment of the Cenit Verde project. Powered VW’s 1.4-litre TSI petrol engine linked to an electric motor.

The car’s electric-only driving range on a full charge is 31 miles; with a full battery and its 40-litre gasoline tank full, its total range is 507 miles.

That equates, according to Seat, to a combined fuel consumption figure of 176.6 mpg and just 36 g/km CO2emissions.

In keeping with its futuristic theme, the Leon Verde is equipped with an advanced Human-Machine Interface (HMI) integrated into a smartphone app. This enables the driver to connect to the car via a wireless network with his or her smartphone to manage functions such as energy consumption, battery status, recharge management (see below), and estimated CO2 savings in electric mode.

Seat said two patents were applied for during the creation of the HMI alone.

In addition, the project has enabled the development of a Driving Cycle Predictor, which analyses and memorizes the routines and driving style of the driver, using this information to optimize energy consumption and reduce CO2emissions.

Seat has taken out a patent for this technology, too.

Management of energy demand

For Seat, the holistic approach to electric vehicle development undertaken by the Cenit Verde project resulted not only in an entirely new electric vehicle, but an entirely new approach to charging infrastructure as well.

Seat_Leon_Verde_Plug-668In collaboration with companies including Cobra, Endesa, Iberdrola and Red Eléctrica Espana, a system of tariff negotiation and smart energy management has been developed, which effectively allows the car to ‘interact’ with the electricity grid – reducing pressure on the grid and, ultimately, saving the user money.

The system detects when overall energy consumption is low on the grid, and sends an incentive, by way of lower costs, for the car to charge during these times.

If the car is left plugged into a power source between 7pm and 7am, for example, the system will only charge the car at times when it detects the overall demand has dropped, using a recharge manager.

The user can specify whether he or she wishes the system to work this way, paying less for energy consumed when demand is low. Alternatively, a standard quick charge function is also available.

But the Leon Verde can also return electricity to the grid via a Lear 20 kilowatt on-board charger; the Leon Verde allows for two-way connection to the grid, allowing it to feed in electricity.

Ramón Paredes, Vice-President for Governmental and Institutional Affairs for Seat and the Volkswagen Group in Spain, described the project as “the most ambitious research programme carried out by a consortium of Spanish companies in such an important technological sphere as electro-mobility.”

Paredes highlighted the fact that, “funds devoted to the financing of R&D activities constitute key elements in the industrial policy of any developed country, or at least if it wishes to continue being one. Experience tells us that those countries who have been able to go against the flow have managed to emerge from the crisis more rapidly and in better shape.”