BorgWarner has announced it has been awarded a new eTurbo programme with a major European OEM for an advanced hybrid passenger car application.

Production is scheduled to begin in 2029.

The BorgWarner eTurbo is an electrically assisted turbocharger that integrates a high-speed electric motor directly on the turbo shaft to actively drive the compressor. The system eliminates turbo lag, enables significantly faster boost pressure build-up, and delivers 20 kW of continuous electrical power and up to 30 kW peak for both performance enhancement and energy recuperation. Excess exhaust energy is converted into electrical energy and fed back into the vehicle's high-voltage system rather than being lost through a conventional wastegate.

“This new award underlines the strength of our eTurbo technology and the trust our customers place in BorgWarner's electrified boosting solutions,” said Dr. Volker Weng, President and General Manager, BorgWarner Turbos and Thermal Technologies. “By continuing to evolve our proven 400-volt eTurbo platform, we are helping our customers meet some of the industry's most demanding requirements for performance, efficiency and emissions compliance.”

The new programme is based on a continuous evolution of BorgWarner's eTurbo platform currently in series production.

A key new feature is the introduction of remote power electronics, which allow flexible positioning within the vehicle and engine compartment, ‘supporting integration into the most challenging packaging environments’.

Designed for operating speeds of up to 145,000 rpm and exhaust gas temperatures above 1,000°C, the system combines advanced cooling strategies with high-performance silicon carbide based power electronics to ensure efficiency, durability and reliability under the most demanding operating conditions.

Beyond performance, the BorgWarner says the eTurbo plays an important role in helping automakers meet upcoming emissions regulations such as Euro 7 (EU7), Super Ultra-Low Emission Vehicle (SULEV), and China National 6b Emissions Standards (C6b) by eliminating fuel enrichment at high load, reducing exhaust backpressure and converting otherwise lost exhaust energy into usable electrical power.

BorgWarner says that with proven series production and extensive field experience, BorgWarner ‘remains the only supplier offering a 400-volt eTurbo in series’.