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The MX Sport Tourer employs a hybrid 4WD system incorporating a
new-generation direct-injection gasoline engine driving the front wheels and an
electric motor driving the rear wheels, selected according to driving conditions.
The new gasoline engine employs airflow in the cylinder, as opposed to the cavity
walls of conventional direct-injection engines, and therefore achieves a wider
range of stratified-charge combustion. Combined with a high-durability, Mazda-developed
lean-NOx (nitrogen dioxide) catalyst, this engine achieves superior fuel efficiency
and reduced emissions. The AC-synchronous motor driving the rear wheels is powered
by an advanced battery via an inverter, and achieves clean, quiet driving in urban
areas with only the rear wheels being powered. In addition, the system regenerates
deceleration energy and uses it to recharge the battery. |
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hybrid 4WD system also incorporates the Zoom-Zoom button and the Hyper Torque
Split mechanism - new and original features developed by Mazda for smooth acceleration
and lively performance. The steering-wheel-mounted Zoom-Zoom button activates
the electric motor. Under specific driving conditions, for example when the brake
pedal is not depressed, pressing this button while stepping on the accelerator
brings both the gasoline and electric motors on-line for extra-powerful acceleration.
The Hyper Torque Split mechanism offers the choice of two driving modes: Sports
mode with greater torque sent to the rear wheels for improved cornering, and Normal
mode with greater torque delivered to the front wheels for enhanced straight-line
stability. The MX Sport Tourer also includes a unique, Mazda-developed Toroidal
CVT (continuously variable transmission). Torque is smoothly transmitted from
the inlet disc to the outlet disc via a power roller, achieving continuous, stepless
shifting even with high power, something beyond the reach of conventional belt-driven
CVTs. All in all, the MX Sport Tourer provides the world-famous driving pleasure
found in every Mazda vehicle in the form of an environment-friendly hybrid. |
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