2007 Reference document (PDF) - Valeo

2 Management
PAGE 56
Report
Environmental management and performance
Valeo e-Valve technology replaces classic mechanical valve
control with a variable electromagnetic system that reduces fuel
consumption by up to 20% and improves engine performance and
drivability.
The StARS alternator-starter system, which stops and starts the
engine instantly and silently, brings significant reductions (6% to
15%) in fuel consumption and pollutant emissions by stopping
the engine when the vehicle is at standstill at a red light or in a
traffic jam.
The main function of EGR (exhaust gas recirculation) cooling
systems is to cut down the formation of nitrogen oxide in diesel
engines. Recent developments in EGR cooling systems for petrol
engines achieve higher compression ratios, for fuel savings of 5%
to 7%.
Valeo’s dual dry clutch gearbox , an alternative to hydraulic
automatic transmissions, uses two clutches, one for odd-numbered
gears and one for even-numbered gears, to combine the smoothness
of an automatic transmission with the fuel consumption of a manual
gearbox, for a 4% to 6% reduction in CO emissions.
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The THEMIS valve in the engine cooling circuit controls the flow
of coolant through the engine, main radiator and heating radiator,
to achieve a 2% to 4% reduction in fuel consumption, a decrease
in pollutant emissions, and improved climate control performance
and other advantages.
UltimateCooling is a new cooling system that optimizes
thermal energy management by having all fluids transit through
a single cooling circuit. As well as fuel savings of 3% to 5%, the
UltimateCooling system also opens the way to vehicle design
improvements by reducing the front overhang, by 20% to 40%
compared to a conventional cooling system.
Valeo’s high-efficiency air conditioning system features
innovative lightweight components, plus a computerized control
algorithm for optimum efficiency at all times. This reduces energy
demand by around 3%, to produce significant fuel savings.
In the years to come, Valeo will be pushing ahead with its
product innovation policy, which is in line with European
initiatives. More and more vehicles will be using systems
capable of reducing CO emissions.
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2007 Reference document - VALEO
Energy optimization at Valeo sites
Energy consumption
Response rate
2002 2003 2004 2005 2006 2007
97.6% 98.3% 97.1% 98.7% 96.2% 99.7%
Breakdown of energy consumption
< Contents >
Response rate
2002 2003 2004 2005 2006 2007
Electricity 100% 98.7% 98.0% 99.7% 97.8% 99.7%
Gas 95.0% 98.1% 97.4% 99.6% 96.8% 99.7%
Fuel oil 94.0% 97.9% 98.2% 99.8% 98.1% 99.6%
Despite efforts made, site energy consumption shows a slight
rise. Generally speaking, process energy consumption is fairly
low, which means the bulk of site energy consumption depends
heavily on climate conditions.
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