Called the GLC F-Cell, the new dual hydrogen and electric propelled model is planned to go on sale in selected markets in 2018 following an extensive development program that, Mercedes-Benz says, has seen the new variant undergo the same testing procedure as other production models.
The zero-emission GLC F-Cell swaps the standard GLC’s combustion engine for a fuel cell stack developed in a co-operation between Mercedes-Benz parent company Daimler and Ford in the Automotive Fuel Cell Cooperation (AFCC) joint venture based in Vancouver, Canada together with an electric motor set-up used for propulsion.
Electrical energy used to power the GLC F-Cell’s electric motors is generated on board within the fuel cell stack in a reaction between hydrogen and oxygen. The hydrogen is stored in two carbon-fibre-encased tanks mounted within the GLC F-Cell’s floor.
Capable of holding up to 4kg of hydrogen, the tanks are pressurised at 700-bar and are claimed to be able to be refilled within three minutes using the latest hydrogen refilling technology.
Details to the output of the fuel cell stack remain under wraps a week before the GLC F-Cell’s planned public debut, though Mercedes-Benz confirms it will be combined with a 9kWh lithium-ion battery to provide an overall range of up to 500km, some 50km of which is claimed to be achievable on the electricity from its battery alone.
As with Mercedes-Benz’s existing petrol-electric hybrid models, the battery can be charged either via plug-in means or on the run with electrical energy recuperated and stowed during braking and coasting.
Mercedes-Benz says it has been able to draw on over 18 million kilometres of testing of fuel cell vehicles in the development of the GLC F-Cell. The new model, which will be available to private customers on a standard sale basis rather than the private in-house fleet agreement like the earlier B-class F-Cell, is claimed to have undergone over 500 individual tests, including aerodynamic refinement and crash testing in the German car maker’s new wind tunnel and crash testing facility in Sindelfingen, Germany since 2015.
Data collected during its development program reveals the fleet of GLC F-Cell prototypes have used about 200 tonnes hydrogen and emitted some 1800 tonnes of water vapour.
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