To the younger generations who feel a passion for cars, they may seem that Mercedes EQ arrives a little late after seeing that BMW i and Tesla sell electric models for years, but really the new range of electric models of the brand of the star is developed from 2009.
Then, the technology obviously is not that of today. It has evolved to everything from platforms to the connectivity solutions needed to be able to offer the maximum autonomy and better management and utilization of the energy, including also the advanced and fast charging systems and batteries.
Mercedes has not lagged behind with respect to Tesla and BMW i, though the first was founded in 2003 and put its first electric model Roadster on the street until 2008, and the second, born in 2011, put the i3 in the market in 2013 and only a year after the i8.
Mercedes has taken longer, seven and a half years. The past month of September officially announced the new brand “Mercedes EQ”, but you need to leave more behind to be able to see that there are many similarities between this and the first intention, known as the BLUEZERO. At the Detroit motor show 2009, the German brand presented a concept that showed three different ways of using forms of mobility: BlueZERO E-Cell (electric) BlueZERO E-Cell Plus (hybrid) and BlueZERO F-Cell (fuel battery).
The three concepts, each with a configuration, had in common the same values of acceleration from 0 to 100 km/h (less than 11 seconds) a top speed limited to 150 km/h, in addition to a torque of 320 Nm that was superior to that of a V6 engine gasoline of the time at 2,500 rpm. The three also had a lithium-ion battery that only needed two hours to be recharged.
In detail, BlueZERO F-Cell was the proposed fuel cell stack fed with hydrogen, being capable of offering a maximum autonomy of 400 km The option-electric BlueZERO E-Cell had a battery with a continuing capacity of 35 kWh and an electric motor of 100 kW and offering a maximum autonomy of 200 km with a single charge.
plug-in hybrid BlueZERO E-Cell Plus combined a gasoline engine triclíndrico of 1.0 litre 50 kW (70 HP) and an electric motor of 100 kW (136 HP), so that they could cover distances of 600 km with a single tank and roll in electric-only mode for 100 km With a payload capacity of 20 kW in just 30 minutes helping to make a power of 18 kWh in the battery (total capacity of 35 kWh) offering a maximum autonomy of 50 km
EVA and Sandwich, two architectures are very similar.
The concept BlueZERO is based on architecture sandwich, the same as that used for the first generation of Class A and B with all the components under the cabin and between the axles, which allowed to offer a vast interior space for passengers and luggage, and completely flat.
If in 2009 the power was not a prerequisite, now it is, and the EQ will have an electric motor on each axle, which will reduce the acceleration time by more than six seconds and will achieve total traction, in addition to nearly doubling the engine torque up to 700 Nm.
Almost it can be said that the concept of sandwich was the forerunner of the EVA, of course with important differences. In the two platforms, the electric motor is located on the front axle next to the power electronics. The battery pack is spread out across the floor of the platform, just below the passenger compartment to achieve a low center of gravity and an ideal distribution of the weight, and the charger and a second motor on the rear axle.
Mercedes has taken seven years to mature a project which, for seven and a half years, there would have been a great success, especially by the lack of infrastructure and technology that is there today, in addition to the lack of awareness about the need to reduce emissions of polluting gases.