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Most F1 fans would be well-versed with the Kinetic Energy Recovery System (KERS), the technical innovation that has been in effect since the 2011 F1 season. The KERS is basically an energy conversion system, through which additional power is generated by converting the waste energy released during braking and converting it into electrical energy.
This year, there is going to be an even more snazzy technical innovation that will be put to effect. The Energy Recovery System (ERS) is all set to be a part of a F1 car’s power unit from this season on. ERS is similar to the concept of KERS, but with twice the power, resulting in a performance that is much higher than that seen with KERS.
ERS comprises of two motor generator units, which convert mechanical and heat energy into electrical energy and vice versa. The two units are specifically called Motor Generator Unit – Kinetic [MGU-K] and Motor Generator Unit – Heat [MGU-H]. The other notable components of the system are the Energy Store (ES) as well as control electronics.
MGU-Kinetic works like a higher version of KERS. When brakes are applied, kinetic energy is generated, and the MGU-K converts the kinetic energy into electricity. In addition, it acts as a motor under acceleration, returning up to 120 kW (approximately 160 bhp) power to the drivetrain from the Energy Store.
MGU-H is an energy recovery system connected to the turbocharger of the engine. Using the exhaust gases, it converts heat energy into electrical energy. This energy can subsequently be used to power the MGU-K or be retained in the ES for further use.
In case of KERS, only the kinetic energy generated under braking was transformed into electrical energy, providing an additional 60 kW (approximately 80 bhp) of power for up to 6.67 seconds per lap. The ERS provides double the power – 120 kW – and a potent weapon to avoid the cars behind you who are trying to overtake using the DRS (Drag Reduction System)!
Flow chart of power unit flow
