CSR

[Feature Story 2]

Mazda’s Unique Battery Electric Vehicles (BEVs)

Earth- and people-friendly electrified cars that offering driving pleasure and contribute to society

Mazda, also in the field of EVs, aims to create a beautiful earth and a spiritually affluent society and provide customers with the brilliance of life through car ownership according to the "Sustainable Zoom-Zoom 2030" declaration. Based on the concept of Life Cycle Assessment (LCA), we plan to launch Mazda’s own battery electric vehicles (BEVs) in 2020. We are working hard to substantively reduce CO2 emissions. We are pursuing the Jinba-ittai driving feel that makes people one with the cars based on human-centered philosophy unchanged for EVs. We will continue our way of making cars, developing cars with the driving pleasure and earth- and people-friendly electrification technologies that contribute to society.

Earth

To hand down a beautiful earth to future generations, Mazda has set a goal of reducing average corporate CO2 emissions based on the Well-to-Wheel perspective toward reduced CO2 emissions throughout the vehicle’s entire life cycle. Based on the Well-to-Wheel perspective, Mazda is developing a multi-electrification technology that provides multiple solutions to different regional characteristics, such as power source suitability, energy situations, and power generation mix, providing the right vehicle type for each region. For instance, for a region with sufficient clean energy resources or a region with air pollution control norms, we believe that our electric driving technology for EVs is the optimal solution. By fully utilizing Mazda’s unique technologies, we are promoting the commercialization of EVs full of driving pleasure, which customers can willingly select. In addition, from the life cycle perspective, we are actively engaged in activities to reduce environmental impacts by adopting the Life Cycle Assessment (LCA), which calculates and evaluates environmental impacts at each stage of material procurement, manufacturing, use, recycling, and disposal. From an LCA perspective, Mazda desires to contribute to substantive reduction of the global environmental impact by installing batteries with appropriate capacities.

Life-cycle CO2 emissions of BEVs and ICEVs

(Mazda's trial calculation based on evaluation conditions of the presentation and paper during the academic conference)

Using the LCA calculation and comparing the CO2 emissions of BEVs and internal combustion engine vehicles (ICEVs) over the entire life cycle shows that EVs with smaller battery sizes tend to generate lower CO2 emissions. In addition, in the latter half of the life cycle, we need to replace a battery to maintain its performance. So, the CO2 emissions of EVs with smaller batteries are almost equivalent to those of ICEVs.

X-axis: Total driving distance after manufacturing Y-axis: Total CO2 emissions

Mazda's unique technology, the Rotary Engine

Mazda is focusing on a range-extender that uses Mazda’s proprietary rotary engine technology, expanding its usage in multiple systems including plug-in hybrids and series hybrids with a single package layout. By developing a multiple electrification technology that utilizes a single vehicle family layout to multilaterally satisfy different regional power generation mixes, we believe we can provide multiple solutions for different regional characteristics, such as power source suitability, energy situations, and power generation mix, offering the right vehicle type for each region.

Mazda's unique technology, the Rotary Engine

Society

The rotary engine can accommodate various fuels such as hydrogen, LPG, and CNG in addition to gasoline. In the event of a disaster or emergency, we believe that relatively and widely available LPG cylinders can be used by the rotary engine to generate the minimum power required for daily life. Mazda EVs go to disaster-affected areas and provide electricity to those in need, a way of contributing to society. Mazda EVs transform themselves into emergency mobile power supplies. We will make such a new form of social contribution a reality.

Future development potential: Multiple electrification technology

Future development potential: Multiple electrification technology

People

Mazda focuses on a human-centered approach to its product development and develops EVs that produce a sense of unity with the vehicle and provide customers with driving pleasure in everyday driving scenes. Using the motor’s regenerative braking, our EVs enable more flexible acceleration/deceleration control than before, enabling seamless and precise control in all directions. The car should be engineered to smoothly interact with the human body, moving in ways that conform to the natural movements of the body. You will be able to control a vehicle’s behavior in accelerating, turning, and braking intuitively, like your hands and feet. We believe this will allow us to achieve the Jinba-ittai driving feel that makes people feel one with the car.

Technology to realize a sense of unity between cars and humans

■ Multi-directional ring structure body
The battery pack forms a loop with the body frame and cross members. As a result, the diagonal force of the four wheels transmits power without delay.
■ Motor pedal
Ability to control acceleration and deceleration by utilizing the characteristics of the motor. By transmitting torque without delay and reducing delay in vehicle responses, the motor pedal achieves the kinetic characteristics of a sensation as if the car is an extension of the driver’s own body.
■ G-VECTORING CONTROL
Seamless motion that feels natural for humans is achieved by making the G transition seamlessly while cornering, from deceleration to turning and from turning to acceleration.

Mazda’s advanced proprietary technology G-VECTORING CONTROL

Using G-vectoring control, Mazda's unique vehicle motion control technology, we are pursuing optimal back-and-forth load shift during turning. Utilizing the motor's regenerative braking, which is unique to EVs, we realized more flexible acceleration/ deceleration, seamless, and with precise control.

G-VECTORING CONTROL


MAZDA GLOBAL TECH FORUM 2019 in OSLO

Mazda held the Mazda Global Tech Forum 2019 from August 26 to September 2, 2019, in Oslo, Norway, inviting approximately 40 automotive journalists from 16 countries worldwide. Mazda Global Tech Forum 2019 emphasized Mazda’s unchanging car-making philosophy also in EVs, based on the viewpoints of Earth, People, and Society, featuring (1) a human-centered development philosophy, (2) contribution to substantive reduction of global environmental impacts based on the LCA perspective, and (3) future potentials of the rotary engine range-extender. At the Mazda Global Tech Forum, journalists drove a technology prove-out EV* specially produced for this event to experience the Jinba-ittai feel, a feeling of unified car-and-human driving. Through detailed discussions with journalists, we obtained various valuable opinions and advice toward our EV launch in the future.

* Technical prototype model that is not planned for sale

Key points appealed during the test drive:

  • -Seamless vehicle motion in all directions
  • -Composed ride quality from a feeling that the vehicle constantly gravitates toward the road surface
  • -All operations including accelerating, turning, and stopping are intuitive, providing control as if the car is an extension of the driver’s arms and legs.

Feedback from participating media (excerpts)

  • -Impression different from other EVs. The car realized very smooth motion in accelerating, turning, and stopping.
  • -I relate to the idea of not only the Well-to-Wheel perspective, but also Mazda’s idea of EVs, in addition to its consideration for the environment, from resource mining to battery disposal.

EV usage environment in Norway

Blessed with nature, Norway highly advances the use of renewable energy, with almost all its electricity supplied by hydroelectric power plants. It is the most advanced EV country in Europe, promoting zeroemission cars as government policy and exceeding 50% share by EVs.

Household recharging equipment in Norway

Household recharging equipment in Norway


World premiere of Mazda’s first mass-production EV at the 2019 Tokyo Motor Show

Mazda unveiled its first mass-production EV at the 46th Tokyo Motor Show* sponsored by the Japan Automobile Manufacturers Association and held from October 23, 2019. The new EV will be the third installation in Mazda’s new-generation lineup. Developed in accordance with Mazda’s human-centered philosophy and making full use of the benefits of electric drive technology, it offers performance drivers can enjoy effortlessly and whole-heartedly.

Tokyo Motor Show 2019 details:

Household recharging equipment in Norway