Abstract: A powertrain system includes a conversion device, a first motor, a second motor, and an engine. At least one of the first motor and the engine is configured to selectively output power to a first traveling end by means of the conversion device; the engine is configured to selectively output the power to the first motor by means of the conversion device, to drive the first motor to generate electricity; and the second motor is in driving connection with the engine, so that the powertrain system has a first simultaneous driving and electricity-generating mode. In the first simultaneous driving and electricity-generating mode, the first motor outputs the power to the first traveling end by means of the conversion device; and the second motor, driven by the engine, generates electricity.

Abstract: A hybrid powertrain includes a drive member, a first clutch, a second clutch, a first electrical machine, an engine, and a reverse piece. The first clutch is connected to an engine output shaft and the drive member, to selectively connect the drive member and the engine output shaft. The second clutch is connected between the drive member and the reverse piece. The reverse piece is connected between the second clutch and a first drive wheel, to selectively connect the drive member and the first drive wheel. The first electrical machine is connected to the drive member, and the first electrical machine and the engine are selectively connected through the first clutch. When the engine outputs power to the first drive wheel, a rotation direction of the engine output shaft and a rotation direction of the first drive wheel are the same by a reversing operation of the reverse piece.

Abstract: A thin film type image slicer device comprises a main body prism, a flat optical element, and an optical film. A reflective cavity is formed between the optical film and a second surface of the flat optical element; the optical film has an oblique side at an angle ? with respect to a projection direction of a light beam reflection forward direction in the reflective cavity; the light beam repeatedly passes through the oblique side in the reflection forward direction; an image spot is sliced into a plurality of sliced images with the same width; and the plurality of sliced images are linearly arranged in an arrangement direction perpendicular to the slicing direction; and chief rays of the light beam corresponding to each sliced image are parallel to each other. An operating system includes a pre-optical system, the thin film type image slicer device and a subsequent optical system.