Mazda is actively involved in technology development projects to help achieve a sustainable society.
Founded on the Sustainable Zoom-Zoom long-term vision for technology development, SKYACTIV TECHNOLOGY is an umbrella name for a range of breakthrough, new-generation technologies that dramatically improve driving pleasure as well as outstanding environmental and safety performance. SKYACTIV TECHNOLOGY is being incorporated into new products sold from 2011 onward.
A new-generation, highly-efficient direct-injection gasoline engine that achieves the world's highest compression ratio of 14.0:1 and achieves a 15% improvement in fuel economy and low- and mid-speed torque compared with previous models
- The world's first gasoline engine for mass production vehicles to achieve a high compression ratio of 14.0:1
- Significantly improved engine efficiency thanks to the high compression combustion, resulting in 15% increases in fuel efficiency and torque compared with previous models*1
- Improved everyday driving thanks to increased torque at low- and mid-engine speeds
- A 4-2-1 exhaust system, cavity pistons, multihole injectors and other innovations enable the high compression ratio
- *1Improvement ratio compared with levels of an existing engine. Figures for compression ratio and improvement ratio of fuel efficiency and torque may vary, depending on models, types of transmission combined, etc.
This highly efficient new-generation clean diesel engine achieves the world's lowest diesel-engine compression ratio(14.0:1) and will comply with strict exhaust gas emissions regulations without using expensive NOx aftertreatment systems.
- 20% better fuel efficiency compared with previous model thanks to the low compression ratio of 14.0:1
- A new two-stage turbocharger realizes smooth and linear response at low and high engine speeds, and greatly increases low- and high-end torque (up to the 5,200 rpm rev limit)
- Complies with global exhaust gas emissions regulations (Euro6 in Europe, Tier2Bin5 in North America, and the Post New Long-Term Regulations in Japan), without using expensive NOx aftertreatment systems
A new-generation, highly efficient automatic transmission that combines all advantages of various transmission type
- Combines all the advantages of continuously variable transmissions(CVTs), dual-clutch transmissions and conventional automatic transmissions
- A dramatically widened lock-up range improves torque transfer efficiency and realizes a direct driving feel that is equivalent to a manual transmission
- A 4-to-7 percent improvement in fuel economy compared to the current transmission
A new-generation manual transmission with a light shift feeling, compact size and significantly reduced weight
- A light and crisp shift feel like that of a sports car
- Reduced weight and compact size
The lightweight vehicle body achieves both high rigidity that enhances driving pleasure and the highest levels of crash safety performance.
- High rigidity and light weight (8 percent lighter, 30 percent more rigid)
- Crash safety performance that meets the top criteria for crash safety assessments in all markets (US-NCAP, Euro-NCAP, IIHS, JNCAP, etc.)
[Technology]
- Body construction
- Straightening: To make the basic frame design as straight a line as possible.
- Continuous Framework: Each section functions in a coordinated manner with the other sections of the framework (a ring structure)design.
- Multiple-load paths: To disperse the load of the impact during a crash, this construction absorb the load at the time of a crash by dispersing it in multiple directions.
- Engineering processes
- Adoption of weld-bonded joints and a significantly increased number of spot welding points contributes to the achievement of excellent body rigidity.
- Materials
- Mazda has greatly increased its use of high-tensile steel, which has excellent strength and rigidity.
In pursuit of the oneness between car and driver achieved in the MX-5 (Roadster), the lightweight SKYACTIV-CHASSIS enables the driver to experience true driving pleasure while improving the driver's sense of comfort and security.
- The suspension and steering functions have been completely redesigned to attain the sense of driving pleasure of oneness between driver and vehicle
- Driving quality has been raised to new levels through improvements to comfort and security.
- A newly developed front strut and rear multi-link suspension system and electric power steering have been adopted to achieve improved performance as well as a chassis 14% lighter*2 than previous models
- *2Figures are for CD-segment car (Atenza/Mazda6 class)
Aims of SKYACTIV-CHASSIS
- ① Combination of low- to mid-speed agility and high-speed stability
- Achievement of ideal vehicle movement according to vehiclespeed (re-examination of rear suspension geometry and adoption of a higher steering gear ratio)
- Increases in caster angle and caster trail
- ② Balance between ride comfort and low- to mid-speed agility
- Reduction of rear suspension impact shock
- ③ Simultaneous achievement of weight reduction and excellent rigidity
- Lightweight cross member with high rigidity
Mazda developed the driving support system "i-DM" and introduced it to the face-lifted Demio in Japan. This system achieved driving pleasure while maximizing the environmental and safety performance of vehicle.
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