Vehicle power transmission system and vehicle having power transmission system

Abstract

The invention discloses a vehicle and a power transmission system for the vehicle. The power transmission system comprises a differential device, two first electric generators, a first input shaft, a second input shaft, an output shaft, a synchronizer and a second electric generator, wherein two sides of the differential device are respectively connected with a half shaft; the two first electric generators are placed on two sides of the differential device; each first electric generator covers the corresponding half shaft; the two first electric generators are in cooperative transmission with a motor power output shaft; an engine can be joined with either the first input shaft or the second input shaft or both; the output shaft is in cooperative transmission with the first and second input shafts; the output shaft is covered with an output shaft output gear in transmission with the differential device; the synchronizer is mounted on the output shaft to join the output shaft output gear; and the second electric generator is in transmission with either the first input shaft, the second input shaft or the output shaft. Multi-driving modes can be achieved in the power transmission system; and the power transmission system has high integration degree and facilitates assembly system gravity center balance and arrangements of the half shafts.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a power transmission system for a vehicle and a vehicle with the power transmission system. Background technique [0002] Chinese invention patent application (application number: 201010252131.0) discloses an integrated motor drive system, which includes a motor, a reducer, a differential and two transmission shafts, and two transmission shafts are connected on both sides of the differential , the motor outputs power to the differential through the reducer. The power transmission system has a relatively compact structure and a high degree of integration. [0003] However, the inventors have found that since there is one motor in the power transmission system and the power is output to the differential through the gear reducer, the lengths of the half shafts on the left and right sides of the differential are different, and the center of gravity of the power transmission syst...

AI Technical Summary

Problems solved by technology

[0003] However, the inventors have found that since there is one motor in the power transmission system and the power is output to the differential through the gear reducer, the lengths of the half shafts on the left and right sides of the differential are different, and the center of gravity of the power transmission system is located at the differential. On one side of the motor, the balance of the system is poor, and it is difficult for the motor to maintain a good working range

Moreover, this one motor is the main power source. Once the motor fails, it will cause the entire power transmission system to lose power and cannot drive the vehicle to run normally.

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