| 摘要 |
An automobile automatic transmission having a double-rotor structure comprises an internal rotor (1), an external rotor (2), a right end cover (3), a left end cover (4), a bearing (5), and collecting rings (6). The internal rotor (1) is connected to an output shaft of a motor, and the external rotor (2) is connected to an input shaft of a main retarder. The external rotor (2) is made of entity steel, and can bear a larger torque. Two-phase excitation windings are evenly arranged on the internal rotor (1). The collecting rings (6) have four lines, and are respectively connected to two full bridges of a controller for outputting. In this case, not only a constant magnetic field is formed on the rotor by inputting direct currents, but also a positive and negative rotating magnetic field can be formed by inputting two-phase alternating currents having a phase difference ±90°. The present invention solves problems that a current automobile automatic transmission has high production costs, and a speed changing range is small, and the present invention is applicable to various automobiles using a gasoline engine and a diesel engine as power. |
