Power-failure-free AMT electric driving structure

Abstract

The invention relates to a power-failure-free AMT electric driving structure. The power-failure-free AMT electric driving structure comprises a driving motor (1), a mechanical automatic transmission (2) and a power motor (3). The driving motor (1) is connected with the input end of the mechanical automatic transmission (2), the power motor (3) is connected with the output end of the mechanical automatic transmission (2), and the driving motor (1), the mechanical automatic transmission (2) and the power motor (3) are coaxially arranged in a series-connection mode and form a double-motor coaxial coupling structure. Compared with the prior art, the power-failure-free AMT electric driving structure has the advantages that power failure of an AMT in the gear shifting process can be well eliminated, the driving smoothness and the taking comfort of a vehicle are improved accordingly, torsional vibration damage caused when the torque on a transmission shaft returns to zero and is reloaded is further eliminated, and the service life of an AMT system is greatly prolonged.

Description

technical field [0001] The invention relates to an AMT electric drive structure, in particular to an AMT electric drive structure without power interruption. Background technique [0002] In order to further optimize the power and economy of the vehicle, it has gradually become an inevitable development trend to equip a transmission device on a pure electric vehicle. For this reason people try to install AMT speed change device additional on battery-driven car. However, the existing AMT device will inevitably produce power interruption due to the action of the clutch when shifting gears; even a clutchless AMT device for pure electric vehicles still needs to drive the motor to unload when shifting gears, that is, the torque is returned to zero. Avoid power interruptions. This technical defect will cause frustration or even obvious impact when shifting gears, which greatly affects the smoothness and ride comfort of the car during driving. At the same time, reloading the dri...

AI Technical Summary

Problems solved by technology

Although the utility model is provided with a power compensation motor 3, it belongs to an additional "power compensation motor", that is, there is no coupling relationship between the power compensation motor 3 and the driving motor. start to work; and when the drive motor starts to work, the power compensation motor 3 is idling and does not work, so this technical solution not only has the technical defects of power waste and the specific power of the electric drive system being greatly reduced, but also its essence It is still a single-motor drive structure of the AMT transmission, so it is still impossible to avoid the power interruption defect of the existing AMT transmission. This technical defect will cause a sense of frustration or even obvious impact when shifting gears, which greatly affects the smoothness and stability of the car during driving. ride comfort

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