BMW i3, i8
Distributed E/E design

The brushless electric motor, the controller and the planetary spindle drive make up the core of the actuator. The mechanical system is connected via a hydrostatic cylinder, and the data bus is connected via CAN, CAN FD or Flexray.

VCR (​Variable Compression Ratio)

ContiSense uses a combination of electrically conductive rubber compounds and rubber-mounted sensors to collect and send information from the tire to the vehicle control system.

The system has three main components: the Electronic Control Unit (ECU), the Actuator Control Unit (ACU) and a reservoir which collects the returned brake fluid. 
The ACU is made up of components such as an integrated Power Transmission Unit (PTU), valves, the simulation chamber and the brake master cylinder.

The IMU is required for positioning the vehicle in the lane as well as for electronic stability control and other safety functions. To increase the functional safety for automated driving, two independent units are recommended.

BLDC motor with integrated commutation/control electronics
Reception of setpoint values for position and speed via CAN
Customer-specific interface options