Multi-position variable speed transmission system for hybrid electric vehicle

A multi-position variable speed transmission system for a hybrid electric vehicle, comprising an engine, a first motor, a second motor, an input shaft and an output shaft, wherein the input shaft is connected to the engine;

• the multi-position variable speed transmission system further comprises a first intermediate shaft, a second intermediate shaft, a first synchronizer, a second synchronizer and a third synchronizer;
• the first intermediate shaft is connected to the first motor, and the second intermediate shaft is connected to the second motor;
• both the first synchronizer and the second synchronizer are connected to the input shaft, a first gear, a second gear, a third gear and a fourth gear are sleeved on the input shaft, the input shaft is connected or disconnected with the first gear or the second gear respectively through the first synchronizer, and the input shaft is connected or disconnected with the third gear or the fourth gear respectively through the second synchronizer;
• the third synchronizer is connected to the output shaft, a fifth gear and a sixth gear are sleeved on the output shaft, the output shaft is connected or disconnected with the fifth gear or the sixth gear respectively through the third synchronizer;
• the first intermediate shaft is connected with two first transmission gears which are a seventh gear and an eighth gear respectively, the seventh gear meshes with the third gear, and the eighth gear meshes with the fourth gear;
• the second intermediate shaft is connected with two second transmission gears which are a ninth gear and a tenth gear respectively, the ninth gear meshes with the first gear, and the tenth gear meshes with the second gear;
• and
• the first gear meshes with the fifth gear, and the second gear meshes with the sixth gear.

A multi-position variable speed transmission system for a hybrid electric vehicle, comprising an engine, a first motor, a second motor, an input shaft and an output shaft, wherein the input shaft is connected to the engine;

• the multi-position variable speed transmission system further comprises a first intermediate shaft, a second intermediate shaft, a first synchronizer, a second synchronizer and a third synchronizer;
• the first intermediate shaft is connected to the first motor, and the second intermediate shaft is connected to the second motor;
• the first synchronizer is connected to the input shaft, a first gear and a second gear are sleeved on the input shaft, the input shaft is connected or disconnected with the first gear or the second gear respectively through the first synchronizer, and the input shaft is further connected with a third gear;
• the second synchronizer is connected to the output shaft, a fourth gear and a fifth gear are sleeved on the output shaft, the output shaft is connected or disconnected with the fourth gear or the fifth gear respectively through the second synchronizer, and the output shaft is further connected with a sixth gear;
• the third synchronizer is connected to the first intermediate shaft, a seventh gear and an eighth gear are sleeved on the first intermediate shaft, and the first intermediate shaft is connected or disconnected with the seventh gear or the eighth gear respectively through the third synchronizer;
• the second intermediate shaft is connected with a ninth gear and a tenth gear, the ninth gear meshes with the fourth gear, the tenth gear meshes with the fifth gear, the first gear meshes with the fifth gear, and the second gear meshes with the fourth gear;
• and
• the third gear meshes with the seventh gear, and the sixth gear meshes with the eighth gear.

A multi-position variable speed transmission system for a hybrid electric vehicle, comprising an engine, a first motor, a second motor, an input shaft and an output shaft, wherein the input shaft is connected to the engine;

• the multi-position variable speed transmission system further comprises a first intermediate shaft, a second intermediate shaft, a first synchronizer, a second synchronizer and a third synchronizer;
• the first intermediate shaft is connected to the first motor, and the second intermediate shaft is connected to the second motor;
• the first synchronizer is connected to the input shaft, a first gear and a second gear are sleeved on the input shaft, and the input shaft is connected or disconnected with the first gear or the second gear respectively through the first synchronizer;
• the second synchronizer is connected to the output shaft, a third gear and a fourth gear are sleeved on the output shaft, the output shaft is connected or disconnected with the third gear or the fourth gear respectively through the second synchronizer, and the output shaft is further connected with a fifth gear;
• the third synchronizer is connected to the first intermediate shaft and corresponds to one end of the input shaft, a sixth gear is sleeved on the first intermediate shaft, the first intermediate shaft is connected or disconnected with the sixth gear through the third synchronizer, and the first intermediate shaft is further connected or disconnected with the input shaft through the third synchronizer;
• the second intermediate shaft is connected with a seventh gear and an eighth gear, the seventh gear meshes with the third gear, and the eighth gear meshes with the fourth gear;
• and the first gear meshes with the fourth gear, the second gear meshes with the third gear, and the fifth gear meshes with the sixth gear.