Mercedes-AMG is talking about its new electric exhaust turbocharger, which the company is using to boost car performance to a new level while meeting rising emission standards. The research and development of the new turbocharger has entered the final stage, and the next-generation Mercedes-AMG car will deploy an electric exhaust turbocharger.
This technology was developed in cooperation with Garrett Motion and comes directly from F1. During the development process, it aims to solve the contradictory goal between a small and fast turbocharger and a large and powerful turbocharger, because the power generated by these two turbochargers is not large, but large Powerful turbochargers suffer from turbo lag. The highlight of the electric exhaust turbocharger is an ultra-thin motor with a size of about 4 cm, which is directly integrated on the supercharging shaft between the exhaust side turbine wheel and the fresh air side compressor wheel. The electronically controlled motor can drive the compressor and eliminate the exhaust gas flow. As a result, the energized turbocharger significantly improves the critical immediate response and the entire engine speed range. At the same time, turbo delay is eliminated over the entire speed range.
The design of Mercedes-AMG makes the torque of the engine higher at low speed to improve agility and optimize the acceleration ability at rest. The electric turbocharger can maintain the boost pressure at all times, even when the driver leaves the accelerator or applies the brakes. The speed of the turbocharger can reach 170,000 rpm, thus achieving high-speed airflow. The electrical part is operated by the 48-volt onboard electrical system. The motor and power electronics are connected to the cooling circuit of the engine to keep it within the optimal temperature range. Mercedes-AMG has not specified which car will be the first to use the new electric exhaust turbocharger.