Modes of Operation: Notes
The Advance Hybrid System - Car variant (AHS-C) contains three planetary carriers that provide four fixed forward gears (4-spd transmission) that with the aid of two electric machines (E-Machine A and E-Machine B provides an additional three virtual gears. For the driver, the indicator on the cluster displays 7 forward gears.
A mechanical reverse does not exist in the transmission. Reverse is only possible by electrically energizing E-Machine B.
The E72 is not equiped with a conventional starter motor. E-Machine A is used as the ICE (Internal Combustion Engine) starter.
Technically the Active transmission is capable of the following modes of operation:
- Electric Continuous Variable Transmission Mode 1 (ECVT 1)
- Electric Continuous Variable Transmission Mode 2 (ECVT 2)
- Fixed Gear 1
- Fixed Gear 2
- Fixed Gear 3
- Fixed Gear 4
- Neutral
- Reverse