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From analog systems to direct injection, Automotive innovation contributes to a cleaner future
São Paulo, October 2025 - In the month that nature's day is celebrated the attention of the future of the planet gains even more relevance, The NAT, brand of Niterra, Japanese multinational also responsible for the NGK brand, highlights how automotive innovations translate efficiency gain in a more sustainable future. Examples are electronic injection systems, who have undergone major transformations to meet environmental standards and reduce the emission of pollutants. Know below the stages of this advance:
1- Mechanical injection system: little known to many mechanics, This system was implemented in many vehicles abroad to replace the famous carburetors. Due to the difficulty of importing present in the country, It was not implemented on a large scale in Brazil, present in some imported vehicles.
2- Analog injection system: It was the first injection system adopted in Brazil, This system has no great adaptation to the vehicle's wear and aging conditions. Besides presenting difficulty in diagnosis, for not having diagnostic equipment, when a problem occurred with the system, presented a code of injection light and depended on a regulation made by the mechanic. Provided a far superior handling to carbureted models and lower emission levels for the standard of the time.
3- Monopoint and Multipoint System Bank to Bank: It is for having a single injector (monoponto) or several injectors injecting simultaneously (counter bench), The use of digital electronics allowed the industry to reach more accurate control of the air-fuel mixture, reducing waste and emissions. Allows an adjustment of the air/fuel mixture according to the use and aging of the vehicle, Also known as adaptation of the air/fuel mixture. The use of scanners facilitated preventive maintenance and helped reduce environmental impacts.
4- Sequential multipoint system: This system allows to synchronize the injection with the ignition order, enabling fuel injection only at the right time, which significantly decreases pollutant levels released in the exhaust and improves the consumer relationship.
5- Sistema Flex Fuel: allowed the driver to choose between gasoline and ethanol, renewable fuel with less environmental impact, according to the price of fuel, providing the driver to choose the most advantageous fuel in his region, It was a significant innovation in the national market.
6- Direct fuel injection: perform fuel injection directly into the combustion chamber, under high pressure, favors a cleaner burning, Reduces consumption and gases emission. In Brazil this innovation was allied to the use of engines with less displacement and use of turbo compressors.
Tendencies
In Brazil, The Air Pollution Control Program by Motor Vehicles (Proconve), CONAMA, establishes rigorous limits for vehicle emissions and requires automakers' attention to the theme. Regulation stimulates modernization and drives the development of solutions that balance performance, fuel economy and respect for the environment.
“The automotive sector has advanced a lot on the development and adoption of technologies focused on sustainability. This is the case of the popularization of direct injection systems and turbo engines with electronic control, that increase engine power and efficiency while reducing consumption; or the option for reducing the displacement, which is noticeable in the number of cylinders in the engine (currently agreed into three cylinders), that raise energy efficiency while decreasing the emission of harmful gases such as monoxide and carbon dioxide, nitrogen oxides and hydrocarbons", explains Hiromori Mori, Niterra Technical Assistance Consultant.
In addition to innovations in engines, modern sensors and components play an essential role in reducing environmental impacts. A sonda lambda, for example, monitors residual oxygen concentration in the exhaust and adjusts the air/fuel mixture in real time, optimizing consumption and reducing emissions. Other sensors - such as the pressure of the collector (MAP), rotation, cooling fluid temperature, butterfly position and fuel level, work in an integrated manner to control the injection system accurately, avoiding failures, unnecessary waste and emissions.
Niterra do Brasil invests in technologies that promote a more sustainable future and develops products of high durability and performance, serving both the automakers and the automotive replacement market. Iridium candles, Lambda probes and rotation sensors, temperature, speed, Fuel level, butterfly and map position reflect their commitment to solutions that combine efficiency with environmental preservation.
