Renault’s top-of-the-line Ondelios crossover

September 12th, 2008 by Darren Cottingham

Renault Ondelios fq

The Paris Motor Show sees the wraps come off Renault’s top-of-the-range concept car Ondelios. Ondelios is Renault’s vision of the high-end crossover, combining a comfortable ride with respect for the environment incorporating an original hybrid powertrain and some pretty ethereal design.

The 4.8-metre-long, 1.6-metre high Ondelios has drawn inspiration from the world of aviation design to deliver high drag efficiency and a Cd of just 0.29. The aluminium-finish grille is flanked by headlamp units that suggest flowing motion.

Another feature of Ondelios’ aerodynamic styling is the boomerang-shaped tail lights. They are built into the bodywork and ringed with air extractors to control the flow of air from the wheel arches.

The glazed roof bathes the interior in natural light.

“We think of it as made from a single material, where the body and glazed areas merge into one. Ondelios is a glimpse of what the automobile might be in the medium term future,” adds Patrick Le Quement, Renault’s Design Director.

The butterfly-type side doors, which also feature an extensive glazed area, swing out and upwards as the sills slide down to
facilitate ingress.

The dark blue anthracite of the bodywork blends perfectly with the tinted glazed area, making the car look as if it were all of a piece and a single colour. The tailgate’s upper section rounds off the sleek, aerodynamic lines with a profiled glareshield
that slides inwards to air and cool the cabin.

Ondelios sits on seven-spoke, 23-inch aluminium alloy wheels with propeller-like hubs draw that airflow from the sides of the car to prevent turbulence. They operate in conjunction with the rim-side brake discs to ensure they suck in air effectively.

The sleek sidewalls of the large diameter 255/40 Michelin Pilot Sport tyres deliver excellent drag performance. Their tread pattern is designed to minimise deformation of the contact patch while on the move to help curb rolling resistance.

The tread has efficient, active flow channels which, together with the wide circumferential groove that helps clear water, strengthen the image of a high-end, high-tech tyre.

Inside, there are three rows of seats that offer individual seating for six. With their cantilever mounts they give the impression of floating, while their kinematics are redolent of airplane seats. The electrically adjustable backs fold into comfortable, business-class positions, while occupants can deploy and retract their footrests at will. They are designed, like giant leaves, to hug their occupants who can curl up in them.

Some of the car’s structural parts are made from natural flax fibre for greater recyclability. In keeping with the commitment to make the car as light as possible, its body is made from carbon and the glazed areas from polycarbonate.

Ondelios is powered by a hybrid powerplant which combines a more powerful 205hp (150kW) version of the 2.0 dCi engine, with two 20kW electric motors at the front and rear. They operate in mild hybrid mode, giving the engine extra boost as required. They use a brake and boost system, recovering energy during braking then delivering it to the engine to boost
acceleration. The front motor also uses fuel-saving stop-start technology.

The electric motor mounted on the rear axle drives the rear wheels when the ESP sensors detect a loss of traction, thus giving Ondelios the capability of a 4WD vehicle. The car is equipped with a lithium-ion battery that can deliver power of up to 4kW/h.

With torque of 450Nm between 1,700 and 3800rpm, the diesel engine provides comfort and flexibility at all engine speeds for long-distance driving pleasure. The 2.0 dCi unit takes Ondelios from a standing start to 100kph in just 7.8 seconds. Driving through a seven-speed, double-clutch gearbox, fuel consumption is kept to a frugal 4.5 litres/100km and CO2 emissions at a lowly 120g/km.
Weights, dimensions, capacities

Length (mm) 4,805
Width (mm) 1,998
Height (mm) 1,605
Height with doors open (mm) 2,230
Wheel base (mm) 2,895
Front track (mm) 1,690
Rear track (mm) 1,720
Unladen weight (kg) 1,452
Boot (dm3) 530
Technical data

Internal combustion engine 2.0 dCi
Power in hp (kW) 205 (150)
Maximum torque (Nm) 450, from 1,700 to 3,800rpm
Electric motors Two 20kW electric motors: one at
the front and one at the rear
Power supply 4kWh lithium-ion battery. Size:
40dm3. Weight: 50kg
Acceleration from 0 to 100kph (s) 7.8
CO2 emissions, combined cycle fuel
consumption 120g/km, 4.5 litres/100 km
Transmission Double-clutch seven-speed
automatic transmission
Internal combustion engine drive
and electric motor drive
Tyres 255/40 ZR23
Wheels Diameter: 23″. Width: 9″
Partners
G Studio Bodywork
Michelin Tyres
Samsung Telephone for communication with
vehicle
Mgs par Materialise Sintered parts