Originally Posted by
rage2
Yes. The 53 has 2 systems.
1. Electric supercharger. This is completely separate from he actual turbo itself. On demand, it spins up and compresses a small amount of air. That air is directed to the intake at low rpms for power, and directed to the exhaust turbine at higher rpms to spin the turbo up faster.
2. Motor generator between engine and transmission. This charges the system when decelerating, and sends powers (up to 21hp) to torque fill even more, as well as reduce fuel consumption.
The new e-turbo is the MGU-H setup in F1. This splits the compressor and turbine, and puts a motor/generator between the shaft that connects both sides. This replaces #1 completely. At any rpm, when you go on throttle, the motor will instantaneously spin up the compressor to the needed rpm, feeding compressed air instantly on throttle tip in so there's zero turbo lag. This also replaces the function of the waste gate (although the waste gate is there as backup in case this thing fails). It mimics the function of a waste gate by controlling boost and compressor speed by slowing down/maintaining shaft speed and generating electricity with the generator in between the compressor and turbine. In F1, at full throttle, the e-turbo MGU-H generates enough electricity to add 70hp to the electric motor at max boost. Basically recovering waste exhaust energy.