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Custom hybridization through torque split technology

Magna torque split architecture allows hybridization of dual clutch transmissions, almost regardless of installation space. It can be used for custom solutions for mild to plug-in hybrids.

Hybrid powertrains are necessary to meet ever more stringent fuel economy and emission regulations. Plug-in hybrids also allow pure electrical driving in the world’s metropolitan regions. However, the global market demands custom solutions for differing regional requirements.

Torque-split technology

Connection regardless of installation space

In a parallel hybrid, the electric motor is usually placed between the engine and the transmission. On the other hand, a simple gear set connects a torque split hybrid to one of the two sub-transmissions parallel to the axle.

This means the electric motor can be run at a significantly lower maximum RPM, which is lighter and more economical and does not change the installation length of the engine-transmission group.

The hybrid powertrain is only slightly larger than the underlying dual clutch transmission.

Scaling as needed

A Magna torque split hybrid can be scaled from a 48 V mild hybrid to a 400 V plug-in hybrid. The electric motor and the internal combustion engine can also use different gears, so that they can both be operated with optimal efficiency.

The very compact electric motor also creates the ability to vary the electrical power. With no extra installation room needed, it can be scaled from the typical 15 kW to over 75 kW. In any case, the hybrid transmission is barely larger than the basic transmission. This means that a passenger car model can be built with variously scaled powertrain variants — from the conventional drive, to the mild to plug-in hybrid.