Renault Mégane E-Tech Electric, refined thermal management

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A trip aboard the new Renault Mégane E-Tech Electric can also be an opportunity to immerse yourself in the world of high tech, to discover some of its construction features and scroll through a long list of innovations for some of which a certificate has even been filed. patent.
This is the case with the battery thermal management system to optimize the electric range and again to create an optimal climate in the passenger compartment in winter without resorting to battery-powered electric heaters which – with their energy consumption – affect the mileage which can be achieved with a ‘full’ battery.
In the first case, Renault engineers have equipped the Mégane E-Tech Electric with a system for regulating the temperature of the cells which, when it is cold, are heated by the circulation of the liquid in the thermal circuit of the electric motor. Or cooled by liquid circulation of a cooler in hot weather.
“For the passenger compartment – explains Jean-Marie L’Huillier, expert in thermal management of electrified vehicles at the Renault engineering department – a latest generation heat pump is used, the device recovers the heat stored by the battery during rapid charging , but also that produced by the engine when it is subjected to a heavy load such as when traveling on the motorway.
“The heat captured in this way – explains L’Huillier – is then used to guarantee the thermal comfort of the occupants.
This innovation not only naturally cools the battery and electric motor, but also uses up to half the energy of a conventional heat pump to heat the cabin. And without compromising battery performance.
Below 10°C outside, the gain in autonomy on the motorway can thus reach 9%, with a very pleasant temperature inside the car”.

Source: Ansa

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