LAMBORGHINI has introduced its new electrified LB744 plug-in hybrid mannequin, a alternative for the Aventador with a naturally aspirated V12 petrol engine and three high-output axial flux electrical motors.
The unnamed automobile is due for launch later this yr coinciding with the Italian model’s 60th anniversary.
With six many years of naturally aspirated V12, and extra just lately V10 energy, at its disposal, the Volkswagen- owned supercar firm had marked ‘the tip’ of the ICE V12 period by way of plenty of particular editions… whereas on the similar time leaking details about its newest mannequin.
Lamborghini portrays the brand new LB744 as ‘the brand new benchmark for hybrid tremendous sports activities vehicles’ as effectively it’d, because of the 745kW+ (1000hp+) mixed energy output. Nevertheless, the brand new Lambo PHEV has some severe competitors from numerous quarters together with Ferrari, McLaren, Porsche, Koenigsegg and lots of others.
The LB744 boasts many superior engineering options together with the powertrain which includes a newly developed eight-speed dual-clutch, rear-mounted, transverse gearbox with an electrical motor (and starter) connected to facilitate four-wheel drive in full electrical mode.
Due to a brand new mid-engine chassis, the LB744 has a light-weight, high-power lithium-ion battery within the central part the place most earlier Lamborghinis had a transmission tunnel. This modern answer is designed to maximise efficiency whereas evenly distributing weight, decreasing the centre of gravity and thereby enhancing the automobile’s dynamics.
The LB744’s 6.5-litre V12 petrol unit can be a very new design, with electrical motors to spice up energy supply at low revs that will also be used to present the supercar purely electrical drive with advantages in CO2 discount.
Lamborghini has been dabbling in hybrid electrical help to a V12 combustion engine since 2019’s Sian idea automobile which used a 25kW electrical motor ‘delicate hybrid’ unit, storing electrical power in a supercapacitor.
Earlier than that, and going again to 1963, the principle focus on the firm was on ICE V12s with a V10 turning into obtainable when Volkswagen took over in 1998.
The LB744, dubbed a Excessive Efficiency Electrified Car (HPEV) by Lamborghini, utilises the brand new L545 engine – which is the lightest and strongest V12 ever made by the corporate.
For an inner combustion engine of this dimension and configuration, it suggestions the scales at a comparatively mild 218kg, some 17kg lower than the Aventador unit, and goes a way in the direction of offsetting the extra weight added by three electrical motors and a big battery pack.
The LB744’s engine is rotated by way of 180 levels in comparison with the Aventador structure. The ‘superquadro’ V12 places out 606kW at 9250rpm thanks partly to a redesigned induction and gasoline system that helps a most rev vary of as much as 9500 rpm.
Particular energy output is 94kW per litre, which is the best output within the historical past of Lamborghini’s V12 engines. Most torque is listed at 725Nm at 6750 rpm.
Air consumption ducts to the cylinders have been re-engineered to extend the provision of air and assure optimum airflow within the combustion chamber. The combustion chamber form has been optimised to effectively propagate flame aided by an ionisation (electrical cost) course of with two management models, one thing already seen within the Aventador and now transferred to the brand new mannequin.
The compression ratio is a excessive 12.6:1 whereas fluid dynamics was used within the exhaust’s design to cut back undesirable back-pressure at excessive revs and improve particular energy output. This has had a secondary profit to the sound emitted from the brand new mannequin’s exhaust which Lamborghini says is “emotional and unmistakable”.
All-wheel drive is a robust Lamborghini custom and the LB744 follows by way of with the combustion engine and transmission-mounted electrical enhance motor driving the rear axle and two electrical motors, one a aspect, driving the entrance.
The rear mounted electrical motor is simply engaged when most efficiency is required together with the number of the required driving mode whereas the 2 110kW entrance electrical motors are oil-cooled excessive effectivity axial flux models that provide an ‘distinctive energy to weight ratio’.
A torque vectoring perform naturally arises from having particular person electrical motors on every entrance wheel. A secondary profit is recuperative power recovered underneath braking.
In electrical mode, the LB744 is front-wheel drive solely in a bid to save lots of power.
The LB744’s lithium-ion excessive particular energy (4500W/kg) battery pack is protected by a decrease structural layer and is linked to the entrance electrical motors, the rear electrical motor and an built-in recharging unit.
It measures 1550mm in size, 301mm in peak and is 240mm large with ‘pouch’ cells giving an general capability of three.8kWh. When the cost drops all the way down to zero it may be recharged utilizing each bizarre home AC charging as much as 7kW in energy and utterly recharges in half-hour.
The battery will also be recharged underneath regenerative braking from the entrance wheels or straight from the V12 engine in simply six minutes.
The brand new platform facilitates the adoption of modern expertise significantly the gearbox which, Lambo says is the ‘the nerve centre of the hybrid plug-in unit’. It’s a compact design that may stand up to a potent electrical energy unit and was developed and designed by Lamborghini solely in-house to be used on this and future Lamborghini electrified fashions.
A moist double clutch design was favoured for its dimension and skill to handle the plenty of torque now on supply. Lamborghini says the brand new DCT ‘field is lighter and quicker when it comes to shifting velocity in comparison with the seven-speed double clutch unit used within the Huracán vary.
