Hybrid power driving system

Abstract

The invention provides a hybrid power driving system. The hybrid power driving system is characterized by comprising an engine (1), a double-planet-row component (200), a first motor (3), a first motor controller (4), a battery (5), a second motor controller (6), a second motor (7), wheels (8) and a planet row output gear (9). The double-planet-row component (200) comprises a first planet row (210) and a second planet row (220); the engine (1) is connected with a first planet carrier (211), the first motor (3) is connected with a second gear ring (222), a first sun gear (213) is connected with a second planet carrier (221), a first gear ring (212) is connected with a second sun gear (223) and the planet row output gear (9), and the planet row output gear (9) and the second motor (7) jointly drive the wheels (8). The driving system is compact in structure and small in size, power interruption can be avoided, and the safety performance of the vehicle is greatly improved.

Description

technical field [0001] The invention relates to hybrid power drive technology, in particular to a hybrid power drive system. Background technique [0002] The existing power-split hybrid driving device includes an engine 1, a planetary row 2, a first motor 3, a planetary row output gear 9, a second motor 7, and a wheel 8, wherein the planetary row 2 includes a planet carrier 21 and a ring gear 22 , Sun wheel 23. The engine 1 is connected to the planet carrier 21 , the first motor 3 is connected to the sun gear 23 , the ring gear 22 is connected to the planetary output gear 9 , and the planetary output gear 9 and the second motor 7 jointly drive the wheel 8 . [0003] The power of the engine 1 is split into two paths through the planetary row 2 , one path drives the first motor 3 to generate electricity and supplies the second motor 7 , and the other path drives the wheels 8 through the planetary row output gear 9 and the second motor 7 . [0004] Such as figure 1 , planet...

AI Technical Summary

Problems solved by technology

[0008] In the prior art, the output of the ring gear 22 is 0 when the power generation is stopped, and the rotation speed of the ring gear 22 is 0, and the planetary row 2 cannot obtain splash lubrication, so it is necessary to add a set of machines The oil pump lubricates the gear train, the structure is complicated and the mechanical loss of the system is increased

In the prior art, the speed ratio of the planetary row 2 is k=2.6, and the size of k is restricted by the system and cannot be made larger or smaller

If k is made larger, the output torque ratio of the planetary row can be increased, and the volume and weight of the generator can be reduced; however, if k increases, the efficiency of the planetary row will be reduced, and the diameter and inertia of the ring gear will be increased at the same time, which will make the vibration of the mechanism and the mechanical Increased loss

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