Plenty of efficiency headroom for combustion engines, says Schaeffler: Page 2 of 2

September 04, 2019 //By Christoph Hammerschmidt
Plenty of efficiency headroom for combustion engines, says Schaeffler
Internal combustion engines still have some potential for improving efficiency. Vehicle supplier Schaeffler will be making suggestions on how this can be achieved at the IAA. The technologies presented show: Electronic controls play a central role.

On the outlet side, the eRocker solution from Schaeffler can be used. Due to the electromechanical actuation, the system is independent of the oil circuit of the engine and can also be applied comparatively easily.

Another highlight is the electrically operated camshaft phaser (Electric Cam Phasing, ECP). The speed- and temperature-independent fast adjustment allows optimum adjustment of the valve timing over the entire operating and temperature range, which plays an increasingly important role in hybridization. In a hybrid vehicle, the combustion engine is started many times more frequently than in a conventional combustion engine. The electrically operated camshaft adjuster ensures that this starting process is fast, efficient and, above all, low vibration.

48 V hybridization enables fuel savings of up to 7%

The hybridization concept relieves and supports the combustion engine and, together with the recuperation of braking energy, ensures a better overall efficiency of the system. At the IAA, Schaeffler will be demonstrating, among other things, 48 V hybridization by means of a belt-starter generator, which can significantly reduce fuel consumption and emissions by five to seven percent. Such a solution enables convenient and efficient start-stop operation of the engine and can also be designed for boost operation.

Another key to increasing efficiency is thermal management. With the individually adaptable thermal management module (TMM) for combustion engines, hybrid and electric drives, Schaeffler improves the control of the operating temperature in the entire drive train - with the motor, transmission and electrical components such as battery, power electronics and electric motor. The module enables precise control of volume flows via electromechanically driven, position sensor-controlled rotary slide units. In addition to reducing CO2 emissions, improved occupant comfort thanks to a shorter warm-up phase is a positive side effect.


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Schaeffler touts electrification, efficiency as its R&D focus

48V demo vehicle highlights potential of mild hybrid

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