This is what Mercedes-Benz describes as a “success”: One of the electric car prototypes drove 1,008 kilometers without recharging with a battery of similar capacity to existing models. More specifically, the model, dubbed “EQXX”, traveled between the group’s research center in Sindelfingen in southern Germany and Cassis near Marseille. It arrived after about 12 hours on the road and the equivalent of 140km of autonomy remaining.
Connecting Germany to the south of France made testing possible “several different profiles” Roads, temperatures and slopes, particularly the difficulty of crossing the Italian Alps, noted Markus Schäfer, responsible for research and development at the German group’s board of directors, on Thursday, April 14.
Equipped with a hundred kilowatt-hour (kWh) battery, the particularly efficient prototype consumed an average of just 8.7 kWh per 100 kilometers – less than half of current comparable models. This experiment shows that going down “About 10 kWh” is is “Absolutely realistic, even for a production car in the near future”, says Markus Schäfer. He also explained that the prototype was tested during this trip. technologies that will come in series for the first time in two to three years”.
Lower consumption compared to a combustion engine
The recipe for success: aerodynamic profile, improved brake energy recovery, a lighter battery, solar panels on the roof to power the onboard systems, new lighter materials and a transmission system with very little energy loss.
same car as “most efficient heat engine” would have consumed “definitely three to four liters” According to the official, 100 km of fuel. However, the consumed electrical energy is equivalent. “about a liter”. And the efficiency of conventional transmission is less advantageous than electric technology.
A new battery chemistry allows it to be particularly dense, hence smaller and less heavy for the same capacity. This “next generation chemistry”, He said the manufacturer plans to expand to a wider area by 2024.
The Mercedes EQS class, the electrified version of the luxury S-Class for over 100,000 euros, consumes between 16 and 17 kWh per 100 km according to certification – often more in real conditions. Autonomous is 780 km according to the WLTP standard. Competing Tesla’s 3 and S models typically exhibit up to 650 km of autonomy according to WLTP for a consumption of between 16 and 20 kWh per 100 km.
Electricity to reduce the group’s CO2 emissions
Mercedes-Benz also announced on Monday, April 11, its target to reduce CO2 emissions per car by 50% by 2030 compared to 2020. “The biggest lever to reduce CO2 emissions is the battery” representing electric vehicles, supply chain and manufacturing “more than half of life cycle CO2 emissions” a car, explains Mercedes.
Here the group is betting on production using new, less polluting technologies such as renewable energies and denser batteries. It is betting on the electrification of its vehicles and plans to go fully electrified by 2030. “where market conditions permit”.
Mercedes also wants less polluting production. The group aims to meet 70% of its energy needs from renewable sources, especially by installing wind turbines or solar panels in its facilities.
ZOOM: INCREASING CHARGING TERMINALS FOR ELECTRIC VEHICLES IN PARIS
Saemes, the second parking lot manager controlled by the capital’s Paris Municipality, has since the beginning of April offered 505 all-car-compatible electric charging stations and 30 terminals for two-wheelers in a parking lot in the 8th district. . Terminals with a power of 7 to 22 kilowatts (kW) can charge the batteries in 5-6 hours.
More than 350 terminals are planned at another parking lot in the area for the spring, and 240 are already available at Porte d’Auteuil. Saemes wants to equip half of its fleet with electric charging stations.
TotalEnergies, which is responsible for the equipment of these Saemes car parks with the telecom company Sogetrel, is also converting some 200 old Autolib self-service car stations belonging to the Bolloré group, whose service was abruptly stopped in 2018 due to a financial failure, into charging stations. . The 10-year contract represents around 15m euros.
“Slightly more than 2,200 terminals running on the way”, Half of this capital’s network and 10 underground parking garages will become 50 kW fast charging centers for a full charge in one hour, TotalEnergies France’s director of mobility and new energies told AFP Philippe Callejon. . The first of these “hubs” will be put into service in the car park under the City Hall in April. Others will enter service by 2025.
To meet PS Mayor Anne Hidalgo’s goal of getting rid of diesel by 2024 and thermal vehicles by 2030, “we must accelerate the transition of the car fleet and develop the infrastructure for it,” summarizes EELV mobility assistant David Belliard. To reach 8,400 terminals by 2024.