Building a Low-Carbon Society: Development and Design Initiatives

Basic Approach

Proportion of CO2 emission during each stage of a Daihatsu small vehicles lifecycle

Automobiles have a sizable environmental load in every stage of their lifecycles, from materials production to disposal of end-of-life vehicles. However, their environmental load is greatest when they are being driven.

Between 70 and 80% of the CO2, the cause of global warming, is generated in the driving phase. (see chart on the right).

For this reason, beginning with the creation of small-vehicles, Daihatsu is actively engaged both in improving fuel efficiency (reducing CO2) while driving and in reducing the amount of air pollutants in exhaust gases.

Existing Initiatives

Daihatsu focuses on making high-quality vehicles at affordable prices. To this end, the company has evolved its basic vehicle and powertrain technologies, and rolled out e:S technologies*1 to its entire line-up. In this way, it has developed the vehicle with low fuel consumption (reduce CO2) with clean emissions, and launched them both in Japan and overseas.

*1 Technology to improve the fuel efficiency of conventional vehicles by maximizing the use of small vehicles technology.

Initiatives for 2025

Further evolutions of e:S technologies

Anticipating the new Japanese passenger car fuel efficiency standards that will come into effect in fiscal 2030, as part of its Seventh Daihatsu Environmental Action Plan, Daihatsu will further evolve its e:S technologies.
By fiscal 2025, the company’s goal is to reduce total CO2 emissions generated by all new Daihatsu cars worldwide—including those produced overseas—by 30% compared to fiscal 2010 volumes, and further refine its conventional engine technologies.

Developing and promoting electrified vehicles unique to Daihatsu

Daihatsu is engaged in the development of mobility that utilizes diverse energy sources and diverse motive forces. Based on the motto of “unique to Daihatsu,” we aim to develop and commercialize high-quality, affordable electrified vehicles.

Further efforts to reduce air pollutants in exhaust gases

Daihatsu aims to reduce air pollutants in—and ultimately eliminate—exhaust gases; to this end, it will engage in the development of pollutant-reducing exhaust gas technologies that contribute to improvements in urban environments across the world, and it will launch them in a timely manner in line with the regulations of various countries and regions.

Examples of Concrete Initiatives

Promoting environmental management at the development stage for new models

Daihatsu introduced Eco-VAS*3 in 2006; in its development activities, the company specifies environmental goals in six different fields*5, including environmentally loads substances, recycling, and life cycle assessments (LCAs).

Through its LCAs, Daihatsu evaluates and seeks to reduce both energy use and CO2 and other emissions that impact on the environment in every stage of its vehicle lifecycles, from materials production, to vehicle production, driving, and disposal of end-of-life vehicles.

*3 Eco-Vehicle Assessment System
*5 Fuel efficiency, exhaust gases, noise, recyclability, environmentally hazardous substances, and LCA values

Initiatives for low-concentration exhaust gases

The majority of automobiles are fueled by gasoline; for this reason, they emit a range of environmentally loads substances that cause air pollution, including carbon monoxide, hydrocarbons, and nitrogen oxides.

Japan introduced its first exhaust gas regulations in 1966, and they have become increasingly rigorous ever since; today, Japan boasts the world’s most stringent exhaust gas regulations, and this has resulted in a steady reduction of nitrogen oxides and other air pollutants.

Daihatsu is engaged for clean emission by setting itself target values that are more rigorous than either domestic emission regulations and those set the exhaust gas regulations adopted by Japan Automobile Manufacturers Association, Inc., to which it is affiliated.

Japan is transitioning from the use of the Japan-specific JC08 standard to measure exhaust emissions and fuel efficiency to the use of the global WLTP*6 standard. Daihatsu is actively working to ensure its vehicles return outstanding results under the WLTP standards.

*6 Worldwide harmonized Light vehicles Test Procedure

Overseas roll out of fuel-efficient vehicles

In Indonesia, one of Daihatsu’s core overseas markets, the government has launched the Low Cost Green Car (LCGC) initiative. To cater to LCGC, we made use of its expertise in e:S technologies to launch two fuel-efficient and affordable vehicles: the Ayla compact car, in September 2013; and the Sigra seven-seater multi-purpose passenger vehicle, in August 2016.