2009 Peugeot 308 Start and Stop Car Review and Specs | 2009 Peugeot 308 Start and Stop Car Wallpaper Pictures Pics

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Thanks to STOP & START technology, which will make its appearance on Peugeot’s production lines from 2011, the 308 1.6 litre HDi FAP BMP6 with a power of 82 kW (≈ 112 bhp) presented on the stand of the Paris Motor Show offers, a high level specifi cation and fuel consumption of only 4,1 litres/100 km, with CO2 emissions of 109 g/km in the combined cycle.

Among the vehicles exhibited by Peugeot at the Paris Motor Show, one, a “standard-looking” 308 hatchback, is in fact a “technological demonstrator” of the future STOP & START system being studied by its engineers.

This “micro-hybridisation” technology places the engine on standby when ever the vehicle comes to a halt (at a stop sign or a red traffi c light, in a traffi c hold-up, etc…) and then restarts it instantaneously (in just 480 ms) without any intervention from the user. This ability, however, is even harder to achieve in the case of diesel engines, particularly an engine of this capacity. In addition, an energy recovery system is included which recharges the battery during phases of deceleration.

This 308 1.6 litre HDi FAP BMP6 therefore forms a particularly effi cient unit with its economic, high-performance HDi engine, delivering a power of 82 kW (≈112 bhp), its particulate emission fi lter (FAP) eliminating soot particles, its electronically-controlled 6 speed manual gearbox (BMP6) –improved driveability and reduced fuel consumption – together with the all new STOP & START system.

The latter gives the vehicle a fuel consumption of only 4,1 litres/100 km, the equivalent of 109 g/km of CO2 in the combined cycle. Naturally, the system is even more efficient when used for urban driving (a reduction in fuel consumption of up to 15 % according to traffi c density). It also reduces noise and vibration to a minimum during the car’s stop phases.

Environment: a committed and ambitious Marque strategy

To tackle the problem of greenhouse gas emissions and with the prospect of fuel prices rising ever higher, the Peugeot marque has made the reduction of fuel consumption and CO2 emissions a key facet of its product policy.

Today, Peugeot is already making a real contribution to the PSA Peugeot Citroën group’s position as a world leader in the market for vehicles emitting less than 120 g/km of CO2.

To retain its leadership, the group has announced that it is working on a range of different technologies.

The first signifi cant step will be large-scale “microhybridisation” with the STOP & START system. The group’s intention is to equip more than 1 million vehicles with this system by 2011, at the same time doing its utmost to ensure that prices remain accessible.

A simple technology for the driver
Development of the STOP & START system is based on a simple observation: leaving the engine running with the vehicle at a standstill results in unnecessary fuel consumption and, consequently, CO2 emissions that could be avoided.

Now with the electronic management of fuel injection in modern engines, successive start-ups are no longer synonymous with excessive fuel consumption (a restart corresponds to only 3 seconds of idle speed).

Today, thanks to reversible alternator technology, the engine can be stopped and restarted automatically and transparently for the driver, leading to signifi cant gains in fuel consumption and preventing unnecessary noise pollution, to the greater benefi t of the environment.

The system works as follows:
1- During braking when bringing the vehicle to a halt (at a red traffi c light, a stop sign, queuing traffi c, etc), the engine switches to standby before the car comes to a complete standstill as soon as the speed falls below 6 kph. To indicate the engine is in standby an “eco” indicator illuminates on the instrument panel.
2- The engine remains on standby for as long as the brake pedal is applied.
3- When the brake pedal is released, the engine restarts automatically and instantaneously, in a manner that is totally transparent for the vehicle occupants.

The system can be de-activated by the driver at any time
by pressing the “eco off” button on the fascia panel.

During operation, the system continuously checks a number of conditions to ensure the engine can be placed and maintained in standby mode (engine temperature and suffi cient battery charge level, outside temperature not extreme, reverse gear not engaged, etc.), via the ECU. It should be emphasised that the performance of this system allows it to operate even in sub-zero outside temperatures (down to -5°C).

A rapidly accessible technology
The system is composed essentially of a reversible alternator. With an output of around 4 kW, it serves the functions of both starter and alternator (supply of electrical energy to the in-car network) and is installed in place of the traditional alternator.

The advantages of starting by means of an alternator include its silent operation and the fact that it works more quickly than a traditional starter.

An electronic power unit, including the inverter and converter, is incorporated in the alternator. This controls the latter and ensures communication with the engine ECU.

The only battery used by the vehicle is a sealed battery with sufficient power to meet the system’s requirements.

Thanks to the use of the alternator, the system has one other advantage: energy recovery during deceleration, in other words as soon as the driver takes his foot off the accelerator. This makes it possible to directly recharge the battery, thereby helping to reduce fuel consumption.

The layout of these components in the vehicle is subject to no major constraints. The system can therefore be mass produced, on many different vehicles and at a moderate cost.

A particularly environmentally friendly technology
Launched earlier this year, the 308 1.6 litre HDi FAP 80 kW coupled with an electronically-controlled 6 speed manual gearbox (BMP6), even today offers a fuel consumption of only 4,5 litres/100 km and CO2 emissions of 120 g/km.

With STOP & START, the “laboratory” 308, presented on the Peugeot stand at the Paris Motor Show, goes even further in terms of environmental effi ciency.

Firstly, the 1.6 litre HDi engine, recognised both for its high performance and economy, is upgraded to comply with future Euro 5 standards. It develops a power of 82 kW (≈112 bhp) and a maximum torque increased to 270 Nm (or 285 Nm with overboost), benefi ting both driveability and safety. It naturally features a particulate emission fi lter (FAP), which collects particles and then incinerates them in a special process, combined with an Eolys additive.

Meanwhile, the electronically-controlled 6 speed manual gearbox (BMP6), in addition to the driving pleasure afforded by the ability at any time to choose which gear change mode to use (manual or automatic), features an electronic management system which fully optimises fuel consumption.

The car is of course clad with Michelin Energy Saver tyres. Launched as a world fi rst on the 308, they allow a high level of performance, endurance and effi ciency while contributing to the car’s environmental friendliness thanks to their low rolling resistance.

STOP & START technology takes all of these benefi ts to a higher level. Compared to the standard 308 1.6 litre HDi FAP BMP6, the gain in fuel consumption and CO2 emissions is 9 % in the combined cycle and 11 % in the urban cycle, and can even rise to 15 % depending on traffi c density. This STOP & START 308 offers a fuel consumption of 4.1 litres/100 km and CO2 emissions of 109 g/km in the combined cycle.

In addition to these excellent environmental credentials, Blue Eco Mode offers other benefi ts during engine shutdown phases, positioning it as the “city runaround” par excellence:
Unrivalled silence in use and reduced vibrations, making driving more serene for the user and passengers and creating a sense of wellbeing inside the car which all occupants can enjoy to the full.
The absence of noise outside the vehicle, too, is a mark of respect for each individual.

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2009 Peugeot 308 Start and Stop Review

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