A control system for a drive unit of a hybrid vehicle, which is capable of preventing an uncomfortable feeling, when a vehicle is driven by a power of an electric motor. In an example, the processor is maintained in a halt condition in response to reset information received from the data processing system. The disc platen is in frictional engagement with the storage disc when this storage disc is pressed into position with the label side and is constructed as a turntable, which can be set into rotation by the drive motor. A vane type air data sensor is mounted on a shaft that rotates freely and is supported on the strut, and is positioned to sense the relative air flow past the strut to determine changes of relative angles of such air flow.