Think city - Traction System

1. Get to Know Your THINK City
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Traction System
Traction System
THINK City is a front-wheel drive vehicle and is driven by an
electric motor through a xed reduction gear. The electric
motor supplies ample torque over the entire rpm range. The
motor gets its power (electricity) from the traction battery
(see Battery Manual).
The THINK G4 EV drive controller monitors the electrical
charge and utilizes the energy eciently. It also regulates the
motor to act as a generator when the accelerator is released.
The traction battery is charged by connection to 240V
(recommended) or 120V from a normal grounded electrical
outlet. A built-in battery charger converts AC in the power grid
to DC to charge the battery in the most optimal way. Charging
stops automatically when the battery is fully charged. The
on-board vehicle charger, drive controller and motor are liquid
cooled. Two pumps circulate coolant to the individual units to
maintain the correct temperature.
Charging current
to the battery
Coolant
system
THINK G4 EV
drive controller
Radiator
12V battery
Motor and
gears
240V/60 Hz
Traction battery
Control unit
Power to
the motor
THINK City also has a
separate 12V system
which powers the
headlights, windshield
wiper, instruments,
ventilation fan, etc. The
12V battery is charged
by the traction battery
via a converter built
into the drive controller.