Eight-speed automatic transmission based on planetary mechanisms

• Main Authors: BING JIQIU, YAO SHUTAO, YUAN XIAOXING, CHAI ZHAOPENG, MA JING, SU JUNYUAN, LI XIAOYU, ZHAO YANHUI, ZHANG XIAODONG, BI CHONGSHENG, ZHOU ZHANGXIA, LI BINLONG, YANG LIN, GUAN WEI
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2021
• 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 discloses an eight-speed automatic transmission based on planetary mechanisms. The eight-speed automatic transmission based on planetary mechanisms comprises a hydraulic torque converter, an input shaft, a P1 planetary mechanism assembly, a P2 planetary mechanism assembly, a P3 planetary mechanism assembly, a P4 planetary mechanism assembly, a brake A, a clutch B, a clutch C, a clutch D, a clutch E, a large sleeve, a middle sleeve, a small sleeve and a rear end output shaft, wherein the P1 planetary mechanism assembly comprises a P1 planet carrier, a P1 sun gear, a P1 planet gear and a P1 outer gear ring; the P2 planetary mechanism assembly comprises a P2 planet carrier, a P2 sun gear, a P2 planet gear and a P2 outer gear ring; the P3 planetary mechanism assembly comprises a P3 planet carrier, a P3 sun gear, a P3 planet gear and a P3 outer gear ring; and the P4 planetary mechanism assembly comprises a P4 planet carrier, a P4 sun gear, a P4 planet gear and a P4 outer gear ring. The eight-speed au