Overview
engine start-up) and the road conditions (uphill,
downhill):
required for the operation of the electric motor,
air conditioning and heating. Its charge level is
represented by an indicator and a reserve power
warning lamp on the instrument panel.
The 12 V accessory battery 3 powers the
vehicle’s conventional electrical system. It is
recharged automatically by the traction battery
via the on-board charger.
Electric drive system
– The vehicle always starts with the petrol
engine to ensure the efficiency of the catalytic
converter and the availability of the brake assist.
– In normal driving, the petrol engine and
electric motor work together or separately
to optimise fuel consumption and electrical
energy or to charge the traction battery.
– During the acceleration phases, the electric
motor provides an additional boost to reach
the torque needed as fast as possible and to
improve the acceleration at low speed.
– During the deceleration phases, the electric
motor charges the traction battery, using the
inertia of the vehicle.
– The driving in all-electric is possible for
parking manoeuvring, for 20 mph (30 km/h)
speed zones in city, on urban and country roads
with smooth driving and on motorways in slight
deceleration or downhill.
The electric motor is integrated into the
automatic gearbox.
The heat pump 4 provides passenger
compartment heating and regulates traction
battery and on-board charger cooling.
The on-board charger 5 manages the domestic
charging (mode 2) and accelerated charging
(mode 3) of the traction battery as well as the
recharging of the 12 V accessory battery.
The electric motor 6 provides propulsion in
accordance with the selected driving mode and
driving conditions. It recovers energy during
vehicle braking and deceleration phases.
1. Charging connectors
2. Traction battery
3. Accessory battery
4. Heat pump
5. On-board charger
6. Electric motor
7. Charging cable
Labels
The charging connectors 1 enable 3 types of
charging:
– Domestic charging in mode 2 using a
domestic socket and associated charging cable
7.
– Accelerated charging in mode 3 using an
accelerated charging unit (Wallbox).
– Superfast charging in mode 4 using a fast
public charger.
“Ease of use and comfort - Second row seats -
Rear head restraints” section:
The DC/DC converter provides the link between
the 12 V accessory power supply and the 48 V
traction power supply.
The belt starter restarts the petrol engine after
driving in all-electric.
"Ease of use and comfort - Interior fittings -
Wireless smartphone charger" section:
The 400 V traction battery 2 uses Lithium-Ion
technology. It stores and supplies the energy
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