Two-gear dual-clutch hybrid power system and hybrid power vehicle

Abstract

The invention discloses a two-gear dual-clutch hybrid power system and a hybrid power vehicle. The system comprises an inner input shaft, an outer input shaft, an intermediate shaft, a differential and a motor, a first-gear driven gear, a second-gear driven gear and a normally engaged gear are fixedly connected to the intermediate shaft; the inner input shaft is connected with an engine through afirst clutch; the outer input shaft is connected with the engine through a second clutch; the outer input shaft is fixedly connected with a first-gear driving gear; the first-gear driving gear is meshed with the first-gear driven gear, the inner input shaft is fixedly connected with a second-gear driving gear, the second-gear driving gear is meshed with the second-gear driven gear, the normally-meshed gear is meshed with a main reduction gear of the differential mechanism, and a motor transmission mechanism is arranged between the motor and the differential mechanism and used for transmittingpower of the motor to the differential mechanism. Two gears are used, a synchronizer is omitted, gear switching is performed through the double clutches, torque supplementing is conducted on the motorin the gear shifting process, smooth gear shifting is guaranteed, the transmission efficiency is high, the space is small, and the whole vehicle is easy to arrange.

Description

technical field [0001] The invention belongs to the field of hybrid power, in particular to a two-speed dual-clutch hybrid power system and a hybrid power vehicle. Background technique [0002] With the increasing shortage of oil supply and the increasing environmental pollution, the development and utilization of new energy vehicles has gradually become a trend. Among them, the hybrid electric vehicle in the new energy vehicle, the hybrid electric vehicle has developed rapidly in recent years, the battery technology is improving day by day, the control system is becoming more and more mature, and the major automobile manufacturers have also further increased their research and development efforts. Domestic OEMs use dual-clutch transmissions to form P2 and P2.5 configurations. However, due to the large number of gears, the dual-clutch transmission will occupy a relatively long axial space, and the control is also relatively complicated, which makes the layout of the vehicle...

AI Technical Summary

Problems solved by technology

However, due to the large number of gears, the dual-clutch transmission will occupy a relatively long axial space, and the control is also relatively complicated, which makes the layout of the vehicle difficult, and usually requires the development of a new cabin, so the applicability of the vehicle is poor. The development cost is relatively high, while the shaft system of the P2.5 configuration is relatively complex, with many gear positions, and multiple shift actuators are required to shift gears, and the overall cost is relatively high

Images