The global automotive industry is undergoing tremendous changes. In order to achieve the 2 degrees Celsius temperature control target stipulated in the Paris Agreement, various powertrain technologies including pure electric drives, hybrids and traditional internal combustion engines will play an important role. Schaeffler predicts that by 2030, approximately 70% of new passenger cars will still use internal combustion engines, of which 30% are pure internal combustion vehicles and 40% are hybrid vehicles, so internal combustion engines will still play an important role in the future and continue to advance Research and development of internal combustion engine technology is still critical.
Matthias Zink, Chief Executive Officer of Schaeffler Automotive Business Unit, said: "The solutions exhibited at this auto show can reduce fuel consumption by up to 15%. We offer our customers various innovation Solutions to support them to meet stringent regulatory requirements and reduce the carbon emissions of vehicles in actual use. "
Variable valve control
Schaeffler will present the latest fully variable valve control system UniAir at the Frankfurt Motor Show. The new system is more compact and 30% lighter than its predecessor. It fully optimizes engine intake control and maximizes dynamic performance when changes in load and speed occur. The system adopts a modular design, embedded with related software, and is installed between the camshaft and the valve. As a long-term partner of the automotive industry, Schaeffler makes full use of its extensive expertise in thermodynamics to help customers match systems and develop corresponding control strategies.
Schaeffler has also developed an eRocker electric roller rocker solution for the exhaust side of the engine. This system is independent of the engine oil circuit and completely uses electromechanical actuators, so it is more efficient and fuel efficient, and it is relatively easy to apply.
In addition, Schaeffler will also show the electric cam phase adjustment system (ECP). The system can perform rapid phase adjustment at different engine speeds and oil temperatures, and can optimize valve timing over the entire engine operation and oil temperature range. Because the starting frequency of the internal combustion engine in hybrid vehicles is much higher than that of a single power source, this system will play an increasingly important role in the hybrid power system. Schaeffler electric cam phase adjustment system can improve the starting speed and efficiency of internal combustion engines in hybrid systems, and more importantly, it can also reduce vibration.
48V hybrid system: can save fuel up to 7%
The 48V hybrid system can not only assist the internal combustion engine to provide additional power and reduce the workload of the internal combustion engine, but also improve the overall efficiency of the system in combination with braking energy recovery. Schaeffler will show a 48V hybrid system using an accessory belt-driven starter generator at this exhibition, which can reduce engine fuel consumption and emissions by 5-7%. This 48V hybrid system can not only improve the smooth start and stop of the engine and ensure high efficiency, but also realize the motor boost function.
Thermal Management Module
Thermal management is another key factor in improving efficiency. Schaeffler's individually adjustable thermal management module (TMM) can be used in a variety of occasions, such as internal combustion engines, hybrids and pure electric drive systems, to control the operating temperature of the entire powertrain system, including the engine, gearbox, and power battery Electrical components such as power components and drive motors. This module consists of a mechatronic unit consisting of position sensor control, motor and ball valve to achieve precise adjustment of volume flow. In addition to reducing carbon dioxide emissions, it can also shorten the warm-up process and improve the passenger comfort.
Reduce internal engine friction
Traditional bearing solutions still play an important role in improving the efficiency of internal combustion engine power systems. Schaeffler's innovative rolling bearing solutions for engine balance shafts, camshafts and crankshafts have great potential to reduce engine power loss, thereby improving fuel economy and reducing emissions. For example, compared with plain bearings, the use of rolling bearings can reduce the balance shaft friction by up to 50%. In addition, Schaeffler has also optimized the design of the balance shaft, which can reduce weight by 40% without affecting performance.