Hybrid power train for vehicles

A hybrid power train for vehicles comprising:

• an input shaft having a driving gear;
• first and second driven gears meshing with and driven by the driving gear;
• a first driving shaft selectively engaging to the first driven gear by a first clutch, wherein the first driving shaft is substantially parallel with the input shaft;
• a second driving shaft selectively engaging to the second driven gear by a second clutch, wherein the second driving shaft is substantially parallel with the input shaft;
• an output shaft substantially parallel with the first and second driving shafts;
• a plurality of first transmission driving gears provided on the first driving shaft and a plurality of second transmission driving gears provided on the second driving shaft selectively engaging a plurality of transmission driven gears provided on the output shaft to obtain multiple transmission stage speeds;
• a plurality of synchronizing devices enabling the plurality of first and second transmission driving gears to selectively synchronize with the first or second driving shafts;
• and
• an electric motor having a rotary shaft substantially parallel with the first driving shaft, second driving shaft, and output shaft to provide power to the driving gear;
• and
• a length is defined by the longest one of the first driving shaft, the second driving shaft and the output shaft, wherein the first driving shaft, the second driving shaft and the output shaft are disposed within said length;
• wherein axes of the rotary shaft of the electric motor, the first driving shaft, the second driving shaft, and the output shaft define a rhombus or quadrilateral;
• and
• wherein the rotary shaft of the electric motor is continuously engaged, directly or indirectly, with the input shaft.