Thermal efficiency technology breakthrough: domestic and foreign automotive engine and integration technology progress
Preface
With the growing global demand for environmental protection, energy conservation and emission reduction, automobile manufacturers and technical research institutions in various countries are constantly exploring new technologies to improve the energy efficiency of vehicles. Thermal efficiency, as one of the key indicators to measure engine performance, is not only related to the fuel economy of the vehicle, but also directly affects its emission level. In recent years, significant progress has been made in improving engine thermal efficiency at home and abroad. Below we will discuss the latest developments in this field through several industry reports.
Breakthroughs in domestic and foreign automobile engine thermal efficiency technology
Geely automobile engine obtains thermal efficiency certification
According to a report on Mobile Sina on April 14, 2026, China's independent automobile brand Geely Automobile announced that its latest engine developed has obtained thermal efficiency certification. This certification is an important milestone for Geely Automobile in improving engine thermal efficiency, marking that the cars it manufactures have reached a new height in energy conservation and emission reduction.
Thermal efficiency refers to the efficiency of the engine in converting the chemical energy of the fuel into mechanical energy. Generally, the higher the thermal efficiency, the less energy the engine wastes when working, which is of great significance for reducing dependence on fossil fuels and reducing carbon emissions. This achievement of Geely Automobile not only enhances the market competitiveness of its products, but also sets an example for the green development of the domestic automobile industry.
Nissan e-Power third generation technology analysis
automachi.com published a detailed introduction to Nissan's e-Power third-generation technology on December 30, 2025. The article pointed out that the new generation of e-Power technology has reached an eye-catching 42% in engine thermal efficiency and introduced a high compression ratio (13.0:1) turbocharged engine. This breakthrough not only reflects Nissan's continued innovation in the field of hybrid technology, but also indicates that hybrid vehicles will be more energy-saving and efficient in the future.
Nissan's e-Power system is a gasoline-electric hybrid system that works on the principle that the engine is only used to generate electricity, and the vehicle is completely driven by the electric motor. This design can maximize the use of the engine's high-efficiency range, thereby improving the overall thermal efficiency and economic performance.
China’s key breakthrough in alternative fuel engines
Xinde Maritime Network reported on February 12, 2025 that China has achieved a number of key technological breakthroughs in the development of alternative fuel engines. These developments not only include improving the thermal efficiency of traditional fuel engines, but also involve research on the application of new fuels, such as natural gas, biofuels, etc., aiming to meet more stringent environmental protection requirements in the future.
As one of the world's largest automobile markets, China's research and development in the field of alternative fuel engines plays a crucial role in the green transformation of the global automobile industry. Advances in technology will help reduce the overall carbon footprint of China's automotive industry and promote the achievement of sustainable development goals.
The role of innovation in integrated technology in improving thermal efficiency
In addition to direct improvements to the engine, the integration and application of other related technologies are also constantly improving the overall thermal efficiency of the vehicle. Taking the three-dimensional packaging integration technology reported by Science Network on June 10, 2025 as an example, two experts from Shanghai Jiao Tong University and Wuhan University shared their latest achievements in this field. Three-dimensional packaging technology can effectively improve the connection efficiency between electronic components, which is particularly important for the design of automotive electronic control systems under new energy efficiency standards, thus indirectly supporting the improvement of core performance such as engine efficiency.
Conclusion
It can be seen from the above news that improving the thermal efficiency of engines is an important research and development direction, whether in the field of traditional internal combustion engines or new energy vehicles. Through continuous technological innovation and integrated applications, automobile manufacturers can not only meet increasingly stringent environmental protection requirements, but also provide consumers with more economical and environmentally friendly travel options. As technology further matures, we have reason to believe that efficient and clean power solutions will become standard configuration in the near future, promoting a comprehensive upgrade of the automotive industry.
📰 Reference source
- Cycle City - Almaty East Gate Masterplan by Habibeh Madjdabadi Architecture Studio- World-Architects (2026/05/22)
- Geely Engine Receives Thermal Efficiency Certification- Sina Mobile (2026/04/14)
- Analysis of Nissan's Third Generation e-Power Technology- automachi.com (2025/12/30)
- China achieving several key breakthroughs in alternative fuel engines- Xinde Maritime News (2025/02/12)
- Experts from Shanghai Jiao Tong University and Wuhan University discuss 3D packaging integration technology- Science Network—News (2025/06/10)
Frequently Asked Questions
What does thermal efficiency mean in automobile engines?
Thermal efficiency refers to the efficiency of an engine in converting the chemical energy of fuel into mechanical energy. Generally, the higher the thermal efficiency, the less energy is wasted during engine operation, which is significant for reducing dependence on fossil fuels and lowering carbon emissions.
What certifications has Geely Auto's latest engine obtained?
According to a report by Sina Mobile on April 14, 2026, Geely Auto announced that its latest developed engine has received thermal efficiency certification, marking an important milestone in Geely's efforts to improve engine thermal efficiency and indicating that its vehicles have reached new heights in energy conservation and emission reduction.
What are the features of Nissan's third-generation e-Power technology?
The third generation of Nissan's e-Power technology has achieved a 42% engine thermal efficiency and uses a turbocharged engine with a high compression ratio of 13.0:1. This technology improves overall thermal efficiency and economic performance by using the engine solely for power generation, with the vehicle being entirely driven by an electric motor.
What progress has China made in the field of alternative fuel engines?
China has made several key technological breakthroughs in the development of alternative fuel engines, including improving the thermal efficiency of traditional fuel engines and research on the application of new fuels such as natural gas and biofuels. These advancements aim to meet future stricter environmental protection requirements.
How does 3D packaging integration technology affect the thermal efficiency of vehicles?
3D packaging technology can effectively improve the connection efficiency between electronic components, which is particularly important for the design of automotive electronic control systems under new energy efficiency standards, thus indirectly supporting the enhancement of core performance such as engine efficiency.