4–88
When Driving
i-ELOOP
*Some models.
i-ELOOP *
i-ELOOP is a regenerative braking system. When you depress the brake pedal or use
engine braking, the kinetic energy that occurs is converted to electrical energy by the power
generator and the converted electrical energy is stored in the rechargeable battery (capacitor
and battery). The stored electricity is used as power to charge the battery and the vehicle's
electrical devices.
A variable voltage alternator is incorporated in the power generator which converts
the kinetic energy to electricity and can generate electricity ef ¿ ciently according to the
vehicle conditions.
A capacitor is used to store large amounts of electricity instantly which can be utilized
quickly.
A DC-DC converter is incorporated which steps down the stored electricity to voltage
useable by the vehicle's electrical devices.
Vehicle electric
devices
Vehicle electric
devices
Accelerator OFF
Accelerator ONEnergy
regeneration
ChargeBattery
Battery Power
Power Engine
Variable
voltage
alternator
Variable
voltage
alternator Engine
Tyre TyreCapacitor
CapacitorDC-DC converter
DC-DC converter
Kinetic energy
Electrical power
4–89
When Driving
i-ELOOP
Variable
voltage
alternator
CapacitorDC-DC converter
CAUTION
High-current electricity À ows through the following parts, therefore do not touch them.
Variable voltage alternator
DC-DC converter
Capacitor
NOTE
A difference in the fuel economy may occur depending on how the vehicle's electrical
devices are used.
If the capacitor is to be disposed of, always consult an expert repairer, we recommend
an Authorised Mazda Repairer.
For details, go to the following URL. http://www.mazda.com/csr/environment/recycling
