Volvo tech facts

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Innovative systems

Rollover Protection System (ROPS)
The latest Volvo models are all equipped with the Roll Over Protection System (ROPS) as standard.

Advanced sensor technology ensures that the belt pre-tensioners and the inflatable curtains deploy in the event of a rollover. This combined with the safety cage helps reduce the risk of occupant injury in such situations.

Corner Traction Control for smoother curves
The dynamic new chassis in the all-new Volvo S60 is backed up by a range of electronic systems that sharpen the sporty driving experience still further. All new Volvo models are equipped with this system.

Corner Traction Control is a new feature that uses torque vectoring so the car takes curves even more smoothly. This technology is a further refinement of the Dynamic Stability and Traction Control (DSTC).

When taking a curve, the car’s inner driven wheel is braked at the same time as more power is transmitted to the outer driven wheel. This allows the driver to take the curve more tightly while reducing any tendency to understeer.

DSTC
The S60 is the first sedan model on the market with Advanced Stability Control. With a new roll angle sensor, it is possible to identify any skidding tendency at a very early stage. This means that the anti-skid system can step in earlier and with greater precision. Advanced Stability Control is a great asset in dynamic driving involving considerable lateral forces, which improves handling and rapid avoiding manoeuvres.

Trailer Stability Assist helps dampen the weaving or snaking action that may occur when towing a trailer or caravan. The car is stabilised by braking one or more wheels and by reducing torque.

Engine Drag Control prevents the wheels from locking during engine braking on a slippery surface.

The DSTC system also has a sports setting that makes it possible to drive more actively. By disabling the anti-spin system, the car becomes more oversteered.

Advanced, integrated braking functions
Ready Alert Brakes can predict when swift braking is needed. The brake callipers are applied lightly to the brake discs even before the driver presses the brake pedal. Hydraulic Brake Assist helps the driver brake in the shortest possible distance. In an emergency situation where the driver does not press the brake pedal fast or hard enough, Hydraulic Brake Assist can help utilise the ABS system optimally and thus shorten the overall braking distance.

Optimised Hydraulic Brakes is a system that amplifies braking ability during firm braking by using hydraulics to compensate for low vacuum pressure in the brake servo.
Fading Brake Support uses the hydraulic system to gradually build up brake pressure during long, hard braking. This helps reduce the risk of brake fade and maintains pedal feel.

New GTDi (Gasoline Turbocharged Direct Injection) engines – T3, T4 and T5

With the launch of the new S60 and V60, Volvo’s engine range has been expanded to a total of seven derivatives on both these models, including the T3 and T4 – two four-cylinder 1.6-litre petrol engines featuring the very latest direct injection technology.

The GTDi (Gasoline Turbocharged Direct Injection) concept was developed to offer really low fuel consumption without compromising on performance or driving pleasure.

The 1.6 GTDi 110 kW T3 and the 132 kW T4 are both available in the all-new Volvo S60 and V60. The new T4 engine delivers maximum torque of 240 Newton metres from just 1600 and all the way up to 5000 revs a minute. An on-demand overboost function provides a massive 270 Newton metres of torque. The result is excellent pulling power across the entire speed range. The torque curve is relatively gentle, providing a particularly comfortable driving experience. The T3 version offers 240 Newton metres of torque.

“Small, high-performance GTDi engines are a part of our bid to get more energy out of smaller engines,” says Magnus Jonsson, Senior Vice President Product Development at Volvo Cars.

Fuel consumption is 8.1 l/100 km (EU Combined) with a manual gearbox and 8.3 l/100 km with the automatic.

There is also a new T5 derivative, which is an uprated version, which produces 177 kW and 320 Nm of torque and sprints from 0-100 km/h in 7,5 sec in manual guise. Top speed is limited to 230 km/h.

GTDi engine specifics

Compact aluminium engines with low weight and high energy efficiency
The new GTDi engines have a compact format and are made entirely from die-cast aluminium, which gives low weight and good heat-dissipation capability. These are some of the requirements for good energy efficiency. The plastic inlet manifold also helps minimise weight.

Another precondition is maximum combustion of the fuel. In order to minimise petrol consumption and emissions, the fuel must be utilised as efficiently as possible. The fuel injection system, not least, has been refined so that combustion can be regulated with extreme precision.

Direct injection with spray-dosage multi-hole injectors
For its 1.6-litre engines, Volvo has chosen to position each injector centrally above the piston, just beside the spark plug. The injectors have six holes each, somewhat unusual for centrally positioned injectors. This gives particularly uniform and finely atomised fuel distribution.

The centrally located multi-hole injector makes it possible to control fuel dosage extremely precisely. In cold starts, the fuel is sprayed into the middle of the combustion chamber just prior to ignition. The high fuel injection pressure of 100 bar means that preparation is perfect and less fuel ends up on the cold combustion chamber walls. This helps cut emissions and considerably reduces the amount of fuel consumed. Another effect is a major reduction in the amount of soot particulates compared with a side-positioned injector.

In cold starts, this injection technology also contributes to quick heating of the catalytic converter, which in turn hastens the exhaust cleaning process.

Direct injection gives a high fill rate in the combustion chamber. Apart from effective combustion and low emissions, this also helps the turbo start up earlier and provides swift response even from low engine revs. This in turn promotes fast acceleration and good driveability from low speeds.

“This is the most modern injection technology in existence and Volvo played a major role in its development,” says Magnus Jonsson. “Our cooperation with Bosch, which manufactures the system, has been ongoing for a number of years and is highly successful.”

Turbo and twin VVT (Variable Valve Timing)
Direct injection in combination with turbocharging and variable valve timing has made it possible to deliver performance properties on a par with far larger engines, while at the same time reducing fuel consumption and environmental impact to considerably lower levels.

“We estimate reductions in fuel consumption and exhaust emissions in the region of twenty percent compared with a conventional petrol engine with larger displacement and similar performance,” says Magnus Jonsson. “At the same time, the GTDi engines provide the sort of lugging power and driving feel of a modern diesel engine.”

The GTDi engines utilise variable valve timing for both camshafts. Both the inlet and exhaust valves’ opening times can be varied to optimise overlap and ensure exactly the right fill in the combustion chamber, irrespective of engine revs. This optimises combustion throughout the rev range and contributes to swift acceleration in all operating conditions.

Powerful T6
The range-toppingT6 petrol engine has a displacement of 3.0 litres and has been improved still further, primarily thanks to lower internal friction. It now pumps out 224 kW and 440 Nm of torque. Acceleration from 0-100 km/h takes 6.2 seconds and top speed is limited to 250 km/h.

Two five-cylinder turbodiesels – D3 and D5
The engine range also includes two five-cylinder turbodiesels. The D5 high-performance engine (this is Volvo’s current 2.4D) with twin turbos produces 151 kW and 420 Nm of torque. Acceleration from 0-100 km/h takes 7.9 seconds and top speed is 230 km/h (limited).

In the most recent D5 version, which was introduced in 2009, performance and driveability requirements have been met by fitting two turbochargers of different sizes, one taking over from the other and providing added power across a broader rev range.

The complimentary properties of the two turbos are utilised optimally for a combination of high performance and low fuel consumption of 6.4 l/100 km (EU Combined) putting this engine in the running for best in class.

In addition there is the newly developed two-litre D3 producing 120 kW and 400 Nm of torque. Acceleration from 0-100 km/h takes 9.4 seconds (manual and automatic). Top speed is 220 km/h (manual) and 215 km/h (automatic).

The new five-cylinder D3 is in principle the same engine as the present 2.4D, but cylinder capacity has been reduced with a shorter stroke to optimise fuel consumption.

Fuel consumption is 5.5 l/100 km (EU Combined) with a manual gearbox and 6.1 l/100 km with the automatic.

The D3 is available with either a six-speed automatic transmission or six-speed manual gearbox, while the D5 is fitted only with an automatic transmission.