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The All-New Mazda3 sees the debut of Mazda’s M Hybrid system. Both the Skyactiv-G, and the soon to be launched Skyactic-X, petrol engines feature this 24v mild hybrid technology. A belt-driven integrated starter generator (ISG) converts the kinetic energy recovered during deceleration into energy and stores it in a 600KJ lithium-ion battery. A DC-DC converter alters the power to the appropriate voltage to supply the cars electrical system. In addition to improved economy, M Hybrid also helps drivability by substituting engine torque for motor torque when the car is starting, accelerating or coming to a stop. Even better, engine speed is adjusted by motor torque during upshifts to deliver a smoother gear change and subconsciously smoother clutch operation by the driver.
G-Vectoring Control Plus
Mazda’s G-Vectoring Control (GVC) system has been updated, and the All-New Mazda3 sees the debut of G-Vectoring Control Plus (GVC Plus). A world first, GVC varies engine torque to optimise the vertical load on each wheel to improve handling and comfort, GVC Plus takes this a step further by using the brakes to add direct yaw control. Delivering smooth transitions between yaw, roll and pitch, GVC Plus improves the cars ability to accurately track steering movements and crisply exit corners. GVC Plus also improves stability at speed and reduces driver fatigue by minimising the need for small steering adjustments on undulating surfaces.
Cylinder deactivation has been added to the evolved 2.0-litre Skyactiv-G in the All-New Mazda3. Delivering improved economy and enhanced efficiency, the system automatically switches between two-cylinder and four-cylinder operation depending on driving conditions, shutting down cylinders one and four in light load situations, such as when cruising at a constant speed. Intake volume, fuel injection and injection timing are all precisely controlled so that the cylinder deactivation isn’t perceptible to the driver.
The first car to feature Mazda’s latest Skyactiv-Vehicle Architecture, the All-New Mazda3’s body delivers a winning combination of rigidity and weight saving. More than 60 per cent of the body is high-tensile steel. Of that, use of ultra-high-tensile steel has been increased from three per cent in the outgoing car to 30 per cent in the all-new model. The use of ultra-high-tensile steel delivers increased strength in areas crucial for passive safety, while at the same time contributing to weight saving.
Skyactiv-D 1.8-litre engine
Having made its debut in the updated Mazda CX-3 last year, the 1.8-litre Skyactiv-D is offered in the All-New Mazda3: equipped with a NOx Storage Catalyst (NSC) system which converts nitrous oxide back into harmless nitrogen to ensure strong environmental performance. The engine also features a number of established Skyactiv diesel technologies found across Mazda’s other diesel engines and models. This includes High-Precision DE Boost Control, Natural Sound Smoother, and Natural Sound Frequency Control, which deliver class leading refinement and the smooth power delivery expected of a Mazda diesel.