Aurobay The Volvo Engine Architecture[13] (VEA) is a family of straight-three and straight-four automobile petrol and diesel engines produced by Volvo Cars in Skövde,[30] Sweden, since 2013,[31] Zhangjiakou,[32] China, since 2016[33] and Tanjung Malim, Malaysia, since 2022 by Proton.

[39] The intention was to produce smaller,[40] more economical and environmentally friendly[41] engines that would be fitted to every Volvo model.

In 2008[17] Volvo began to upgrade its Skövde engine plant and invested roughly 2 billion SEK[42] into development and tooling for the VEA.

[46] Volvo nearly completed the phaseout in 2016[47] with only two variants of the five-cylinder diesel remaining in production for the 60-series models.

In December 2014, Volvo introduced the first hybrid variant of a VEA engine with the launch of the XC90 T8.

Hybrid engines are equipped with a crankshaft integrated starter generator (CISG) that is used to start the engine, capture otherwise lost energy when slowing down and reduce lag at low rpm by acting as an additional supercharger.

[48] With the introduction of Volvo's new flagship sedan in 2016, the S90, the PowerPulse anti-lag system for the top of the range diesel engines was unveiled.

It uses a small tank of compressed air that can instantaneously be released into the turbocharger to help with spool up, thereby reducing turbo lag.

[49][50] Volvo began testing of three-cylinder variants in mid 2014,[51] it had been planned to introduce these engines[12] in 2015.

[52] In the second half of 2017, the first production VEA three-cylinder engine was released with the debut of the LEVC TX, where it is used as a range extender.

The first Volvo three-cylinder VEA was slated for introduction in 2018 for the XC40 under the T3 engine designation,[53] however it saw only limited release.

[54][55] The improvements were rolled out in stages and some engines, particularly the hybrid variants, remained in Euro 6 configuration until the second quarter of 2018.

It is code-named VEA GEN3 (with VEP GEN3 and VED GEN3[57] respectively) and part of Volvo's effort to hybridize all of its engines.

The system uses kinetic energy recovery via a belt driven integrated starter generator (BISG) which is stored in a 48V 0.25 kWh lion battery.

Different, more general engine codes are used for some certification and approval documents and are 6 to 8 characters long.

An additional 2 characters are used to identify each specific engine variant with an MP or HP suffix to differentiate performance.

[67] When running it only recharges the high voltage battery, thus functioning as a range extender giving approx.

The front electric motor (EFAD) delivers 82 PS (60 kW; 81 hp) and 160 N⋅m (120 lb⋅ft) of torque.

More powerful versions are equipped with a roots type supercharger in addition to being turbocharged and intercooled.

[90] For 2016 minor changes increased power output to 306 PS (225 kW; 302 hp) at 5700 rpm.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 68 PS (50 kW; 67 hp) and 200 N⋅m (150 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

The rear electric motor (ERAD) delivers 87 PS (64 kW; 86 hp) and 240 N⋅m (180 lb⋅ft) of torque.

[40] In order to achieve injection pressures of up to 2500 bar all engines are equipped with a belt driven fuel pump.

[188] Volvo has ceased production of all diesel engines, with the last diesel-equipped vehicle built in March 2024.