Transmission system of eight-speed automatic speed changer

• Main Authors: CHAI ZHAOPENG, SUN DESHAN, ZHENG GUANGXUE, MA JING, LI FANGHUI, SHI WEI, SU JUNYUAN, WANG ZEYU, YU YONGNING, JIA LINNA, SONG WENFU, FU YAN, ZHANG XIAODONG, WU JIAWEN, WANG MO, YANG LIN, GUAN WEI
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2017
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to a transmission system of an eight-speed automatic speed changer. The transmission system comprises an input shaft, an output shaft, a first planetary gear train, a second planetary gear train, a first clutch, a second clutch, a third clutch, a fourth clutch, a first brake and a second brake, and selection of different speed ratios of planetary gear mechanisms is achieved through combination of the first clutch, the second clutch, the third clutch, the fourth clutch, the first brake and the second brake. The transmission system is simple in structure, compact and reasonable in internal space arrangement, high in reliability and easy to control; in addition, the transmission system can achieve eight forward gears and two reverse gears, and the vehicle riding comfort, the gear shifting flexibility and the fuel economy are greatly improved. 本发明涉及种八速自动变速器的传动系统，包括输入轴、输出轴、第行星轮系、第二行星轮系、第离合器、第二离合器、第三离合器、第四离合器、第制动器、第二制动器，通过第离合器、第二离合器、第三离合器、第四离合器、第制动器、第二制动器的组合，实现行星齿轮机构的不同速比的选择。本发明结构简单，内部空间布置紧凑、合