Mazda 2014 Annual Report Download - page 28

Long-Term Vision for Technology Development
We anticipate that petroleum resources will
still be the main energy and internal combus-
tion engines the main drive technology in the
global automobile market in 2020. As a result
of having made dramatic improvements to
the base technologies for a car’s basic perfor-
mance—including to the engine, transmission,
body, and chassis—we are pursuing a Building-
Block Strategy of gradually adding electric
devices, such as regenerative braking and
hybrid systems. Our approach is to effectively
reduce CO2 emissions by providing all customers
with
driving pleasure and outstand ing environ-
mental and safety performance
, rather than
to rely heavily on a subset of environmentally
friendly vehicles.
Building-Block Strategy
Step 1 Battery Management Technology (Idling Stop System “i-stop”)
This system saves fuel by automatically shutting off the engine when the driver brings the car to a standstill and
restarting the engine when the vehicle returns to motion. Mazda’s i-stop is an idling stop system that significantly
improves fuel efficiency while maintaining a natural driving feel. In addition to realizing a quick engine restart
through the latest control technologies and a natural, comfortable feel, the i-stop system improves fuel efficiency
by approximately 8% (JC08 mode) compared with conventional idling stop systems.
Installed in the Mazda3 in 2009, the i-stop system has been expanded to other models. In February 2012, i-stop
was installed in the CX-5 equipped with the SKYACTIV-D 2.2 clean diesel engine, marking the first use of an idling
stop system in a diesel engine passenger car in Japan.
Step 2 Regenerative Braking Technology
(Regenerative Braking System “i-ELOOP”)
Mazda has developed i-ELOOP, the world’s first passenger vehicle regenerative braking system that uses a capaci-
tor. A regenerative braking system recaptures (generates) as electricity part of the kinetic energy lost as a vehicle
decelerates, energy that previously went to waste. The system stores the electricity so that it can be reused. The
electrical power stored by energy regeneration is used to power a variety of electrical components, such as the air
conditioner, headlamps, and audio equipment, thereby enabling the saving of fuel that was previously used to
generate electricity.
The models equipped with i-ELOOP have been expanded since November 2012 when the system was fitted on
the Mazda6.
Step 3 Electric Motor Drive Technology
(Hybrid System “SKYACTIV-HYBRID”)
This type of system improves overall energy efficiency using an electric motor to assist gasoline engines at times when
energy efficiency is low, such as when a vehicle is running at low engine speeds or during low-load operation. The
combination of this hybrid system with the systems mentioned in steps 1 and 2 above can produce a substantial boost
in overall efficiency (fuel efficiency).
In November 2013, Mazda launched the new Axela Hybrid onto the Japanese market. Developed under the concept
of “the hybrid with Mazda DNA,” the Axela realizes a unique
driving pleasure sensation and, as it stands, a low fuel
consumption in JC08 mode of 30.8km/L*.
* The rate of fuel consumption (Ministry of Land, Infrastructure and Transport review value) was the value achieved under
stipulated test conditions. The rate of fuel consumption will differ depending on, for example, the environment in which customers
use the car (climate, traffic conditions, etc.) and how the car is driven (sudden accelerations, air conditioner usage, etc.).
Mazda’s revolutionary base technology,
SKYACTIV TECHNOLOGY, is improving the car’s
powertrain efficiency, such as the basic perfor-
mance of the engine and transmission, and
bringing about profound improvements in such
areas as vehicle weight reduction and aerody-
namics. Based on a Building-Block Strategy,
base technologies and electric device technolo-
gies are combined in the following three steps.
Mazda developed the Demio EV that combines to an advanced level the sporty driving people expect from Mazda
with the remarkable driving range for an EV of 200 km (Mazda-measured value in JC08 mode). Mazda began
leasing the Demio EV to local government bodies and corporate customers in Japan in 2012. Mazda is also in
the process of developing a range extender that charges the batteries of EVs by a rotary engine to increase their
driving range.
Internal
combustion
engines
Internal
combustion
engines
Internal
combustion
engines
Base engines
(internal
combustion engines)
Base engines
(internal
combustion engines)
Base engines
(internal
combustion engines)
Electric devices
Electric devices
Hybrids
Idling stop systems
Hybrids / Plug-in hybrids
Regenerative braking
Hybrids /
Plug-in hybrids
Regenerative
braking
Idling stop
systems
Idling stop systems
Anticipated Expansion in Adoption of Environmental Technologies (Through 2020)
Graphic representation of global market share of powertrain technologies
Base Technologies Powertrains, Reduced Body Weight, etc.
Battery Management Technology Idling Stop System “i-stop”
step 1
Regenerative Braking Regenerative Braking System “i-ELOOP”
step 2
Electric Drive Technology Hybrid System “SKYACTIV-HYBRID”
step 3
Building-Block Strategy
2009 20202015
EVs
EVs
• Introduction of hybrid technology
and idling stop technology
• Expanded use of electric device
technologies and increased
introduction of electric vehicles (EVs)
• Stricter fuel economy standards globally
• Need for big boost in energy efficiency
• Expanded adoption of electric device
technologies
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Mazda Annual Report 2014
CONTENTS
Review of Operations
Foundations Underpinning
Sustainable Growth
Message from Management
Introduction
Brand Value Management
Financial Section