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2018 F1

Bahrain GP: Power unit elements used so far

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As the F1 circus ready for the second round of Grand Prix of the 2018 F1 season, the report reveals – the maximum number of complete Power Units (PU) each driver has is three for the entire season.

The drivers entered in the 2018 Formula One Championship have used the below listed number of power unit elements during this season so far:

Driver
Car
ICE
TC
MGU-H
MGU-K
ES
CE
Lewis HamiltonMercedes 1
1 1
1
1 1
Valtteri BottasMercedes 1
1
1
1
2
2
Daniel RicciardoRed Bull 1
1
1
1
1
1
Max VerstappenRed Bull 1
1
1
1
1
1
Sebastian Vettel
Ferrari 1
1
1
1 1
2
Kimi Raikkonen
Ferrari 1
1
1
1
1
1
Sergio PerezForce India 1
1
1
1
1
1
Esteban Ocon
Force India 1
1
1
1
1
1
Sergey SirotkinWilliams 1
1
1
1
1
1
Lance Stroll
Williams 1
1
1
1
1
1
Fernando AlonsoMcLaren 1
1
1
1
1
1
Stoffel VandoorneMcLaren 1
1
1
1
1
1
Brendon HartleyToro Rosso 1
2
2 1
1
1
Pierre GaslyToro Rosso 2
2
2
1
1
1
Romain Grosjean
Haas 1
1
1
1
1
1
Kevin MagnussenHaas 1
1
1 1
1
1
Nico HulkenbergRenault 1
1
1
1
1
1
Carlos Sainz Renault 1
1
1 1
1
1
Marcus EricssonSauber 1
1
1
1
1
1
Charles LeclercSauber 1
1
1
1
1
1

The power unit is deemed to consist of six separate elements: ICE = Internal Combustion Engine / TC = Turbo Charger / MGU-H = Motor Generator Unit – Heat / MGU-K = Motor Generator Unit – Kinetic / ES = Energy Store / CE = Control Electronics

What the sporting regulations say:

Unless he drives for more than one team, each driver may use no more than three power units during a championship season. The only exception is where the power unit is provided by a manufacturer or supplier taking part in its first championship season, in which case up to four may be used by a driver.

The power unit is deemed to consist of six separate elements: the internal combustion engine (ICE), the motor generator unit-kinetic (MGU-K), the motor generator unit-heat (MGU-H), the energy store (ES), turbocharger (TC) and control electronics (CE).

Each driver is permitted to use only three ICE, MGU-H and TC, and only two ES, CE and MGU-K during a championship season and any combination of them may be fitted to a car at any one time. Should a driver use more than that during the course of a season, a grid penalty will be imposed.

The first time a driver uses an additional element over and above the prescribed limits, a ten-place grid penalty will be given. If he then uses other additional elements a five-place penalty (or penalties) is imposed. Use yet a further example of any given element and another ten-place penalty is received – and so on.

During any single event, if a driver introduces more than one of a power unit element that is subject to a grid penalty, only the last element fitted may be used at subsequent events without further penalty.

If a driver is replaced at any time during the season his replacement will be deemed to be the original driver for the purposes of assessing power unit usage.

Teams may only use homologated power units.

What the technical regulations say:

The internal combustion engine of a Formula One car must 1.6-litres in capacity and rev-limited to 15,000rpm.

The engine must also have six cylinders arranged in a 90-degree formation, with two inlet and two exhaust valves per cylinder and a single turbocharger.

Engines exhaust systems must have a single tailpipe for the turbine and either one or two tailpipes for the wastegate.

Fuel flow to the engine is limited to 100 kilograms/hour.

The use of any device, other than the engine and one MGU-K, to propel the car, is not permitted.

The overall weight of the power unit must be a minimum of 145kg. The Energy Store must be installed wholly within the survival cell and must weigh between 20kg and 25kg.

The crankcase and cylinder block of the engine must be made of cast or wrought aluminium alloys – the use of composite materials is not allowed. The crankshaft and camshafts must be made from an iron-based alloy, pistons from an aluminium alloy and valves from alloys based on iron, nickel, cobalt or titanium.

The MGU-H must be solely mechanically linked to the exhaust turbine of the pressure charging system. The MGU-K must be solely and permanently mechanically linked to the powertrain before the main clutch.

A maximum of 4MJ per lap can be transferred from the ES to the MGU-K (and then in turn to the drivetrain).

A maximum of 2MJ per lap can be transferred from the MGU-K to the ES.

An unlimited amount of energy can be transferred between the MGU-H and the ES and/or MGU-K.

With the exception of cars starting a race from the pit lane, the MGU-K may only be used during a race start once the car has reached 100km/h.

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