Following their successful
submission to the UK Government's Ultra Low Carbon Car Challenge,
PSA Peugeot Citroën, Ricardo UK Ltd and QinetiQ today revealed
plans for their €4.4mn ($5.4mn) project, codenamed EFFICIENT-C,
to develop a C-segment passenger car capable of ultra-low CO2 emissions
while delivering competitive standards of vehicle performance and
refinement.
EFFICIENT-C will involve the development and demonstration
of a highly efficient parallel hybrid powertrain system installed
in a Citroën Berlingo Multispace passenger car. Development
of this vehicle is expected to take 18 months and with the potential
for delivery in future products available to customers. The first
phase of the programme will comprise a feasibility study which will
define the final vehicle architecture. Key technologies envisaged
at this stage for in the EFFICIENT-C vehicle include:
- An efficient PSA Peugeot Citroën HDi common rail diesel engine,
delivering peak performance of around 90 bhp while achieving Euro
IV emissions levels with low-cost aftertreatment technology.
- A high output Direct Current (DC) electric motor-generator enabling
stop/start operation of the diesel engine, torque assist, efficient
electrical power generation, regenerative braking and all electric
traction at low speed.
- An automated manual transmission (AMT) delivering high standards
of refinement and driveability in a cost effective manner.
- An advanced energy storage system using NiMH (Nickel-Metal Hydride)
or Li-ION (Lithium-Ion) batteries, possibly combined with supercapacitors,
to achieve the energy and power densities required for efficient
operation of the vehicle.
- Advanced control and electronics architecture, enabling the many
constituent technologies of the hybrid vehicle to operate at optimal
efficiency.
The EFFICIENT-C vehicle is targeted to achieve CO2 emissions of
89.5g/km over the combined ECE + EUDC drive cycle (this equates
to a well-to-wheels CO2 emissions level of 100g/km, using pump grade
diesel fuel). Legislated exhaust emissions will be within Euro IV
levels. Vehicle performance targets include a 0-100kph acceleration
time of less than 13 seconds and a top speed in excess of 150 km/h.
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