Renault Z.E. Concept

Concept Cars 13 Oct 2008
Renault Z.E. Concept

The Z.E. (Zero Emission) Concept is the Renault’s vision for an all-electric family vehicle focused on minimizing energy consumption and passengers’ comfort. Among the highlights are the roof solar panels, insulating sandwich body panels and an integrated electric scooter.


At the beginning of 2008, the
Renault-Nissan Alliance has signed agreements with several states and regions (Israel, Denmark,
Portugal, Japan’s Kanagawa prefecture, the state of Tennessee in the USA), which will lead to the
mass marketing an all-electric vehicle from 2011.

Renault ZE ConceptThe Z.E. Concept is powered by a 70kW electric motor with torque of 226Nm, with lithium-ion batteries.

The Z.E. Concept is based on the Kangoo be bop and its dimensions (length: 3.95m, height: 1.85m)
favour manoeuvrability in and about town.

This electric vehicle was designed to minimize energy
consumption.

The employment of heat-reflective paint and insulating bodywork featuring large surface areas
contributes to the reduction of temperature fluctuations which traditionally prompt the use of climate
control or heating systems which are big consumers of energy. Insulation is further optimized by the use
of acid green-tinted glass for the glazed areas.

Renault ZE ConceptThe bodywork functions along the same lines as a Thermos flask. It comprises two insulating panels with
a sandwich of air.

This air, which is still the most effective insulant known today, limits variations in temperature between the
exterior and the interior of the car.

The polyurethane gel bumpers can easily deform to soak up minor knocks,
while pedestrians are reassured by their absorbent aspect.

Solar panels, positioned on the roof, power a temperature regulation system, so that a pleasant temperature can be maintained in
the cabin, even at standstill or when parking, thus avoiding to switch on the climate control when
starting the vehicle.

Meanwhile, the layout of the heating and climate control functions has been thought through to produce an efficient trade-off between performance and energy consumption.

Renault ZE Concept InteriorFor example, the
impression of heat is especially felt on the face and hands.

Accordingly, if the cabin temperature is 15°C
but warmth can be channelled as close as possible to key zones (a heated steeringwheel, for example), the driver will feel comfortable while using less electrical energy.

The conventional drag-producing exterior mirrors have been replaced by streamlined, low-energy
cameras which are also powered by the roof-mounted solar panels to enhance all-round visibility,
especially when manoeuvring.

The low-drag full-disc aluminium alloy wheels also improve aerodynamic
performance.

Renault ZE Concept Interior 5The headlamps use efficient light-emitting diodes (LEDs) which are not only long
lasting but also low consumers of energy.

The Z.E. Concept concept car offers motorists and passengers a pleasant, relaxing ride and this
sensation is enhanced by a number of interactive communication features. For example, logos light up to
signal that the vehicle recognizes its occupants as they approach.

A linear display on the outside of the door provides a visual indication of how much range remains even
before the driver gets into the vehicle. This display is redolent of a cell phone charge-indicator.

To facilitate
getting around in areas where space is a premium, an electric scooter is packed into the boot and is
charged via the car’s own system.

Renault ZE Concept Interior Renault ZE Concept Dashboard Renault ZE Concept - Integrated scooter

To make loading easier, the rear hatch-type tailgate combines with a
wide, folding sill which enables this scooter – or any other item – to be slid into the boot.

Renault ZE Concept Interior 2Z.E. Concept contains very few fluids that need recycling at the end of its lifecycle.

The smart navigation interfaces feature an innovative approach to reduce the energy
requirements.

The MMIs (Man Machine
Interfaces) are able to pinpoint the nearest car parks equipped with charging stations as a function of the
remaining range.

Information is relayed from the vehicle to the driver and vice-versa via a cell phone which connects
directly to the dashboard.

Using a cell phone-based navigation system avoids the necessity for an energy-consuming onboard
computer. The dashboard itself takes the form of two distinct functional units:

  • a new-format minimalist display which provides specific data relating to the electric motor,
  • a remotely-positioned control between the seats incorporating a touchpad to facilitate the keying in of data.
Renault ZE Concept Interior 9 Renault ZE Concept Interior 8

Renault Z.E. Concept – Technical Specifications

Renault ZE Concept 4Dimensions

  • Length (mm) 3,945
  • Width (mm) 1,856
  • Height (mm) 1,748
  • Height with tailgate open (mm) 1,902
  • Wheelbase (mm) 2,406
  • Front track (mm) 1,572
  • Rear track (mm) 1,572
  • Front overhang (mm) 794
  • Rear overhang (mm) 745
  • Unlade weight (kg) 1,520

Powertrain and Chassis

  • Power source Electric motor
  • Renault ZE Concept Headlight DetailPower output Peak output: 70kW (95hp). Continuous output: 50kW
  • Maximum torque 226Nm
  • Battery type Lithium-ion
  • Transmission Direct with front/rear reducer and inverter
  • Traction Electric
  • Tyres 245/35R21
  • Wheels Diameter: 21"/Width: 8.5"

Partners

  • D 3 – Bodywork
  • Michelin – Pilot Sport PS2 tyres
  • Samsung – F480 cell phone for communication with the vehicle

(Source: Renault)

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