An engine control system for controlling engine operation in high-output and fuel-economy modes in a gasoline direct injection engine includes an alternator that is driven by the engine and that is regulated by a load control signal. Alternatively, the sensor arrangement includes plural optical sensors for these images. A torque transducer is connected to the shaft, and an rpm sensor, and a device which collects torque and rpm data from the torque transducer and sensor, are provided. Peer to peer wireless communications between authorized users of licensed spectrum may involve scramblingdescrambling of information communicated between authorized devices. When the vertically moving pin is equal to or lower than the predetermined height in the cam groove, the second cam portion is held at its lowered position. The helper roll may be supported within the cutting zone and comprised of a plurality of sub-helper rolls.