Composite planet gear set type hybrid power system of birotor motor

Abstract

The invention discloses a composite planet gear set type hybrid power system of a birotor motor. The composite planet gear set type hybrid power system consists of an engine, a first motor, a second motor, a composite planet gear set, a first locker, a second locker, an inverter, a super-capacitor and an output gear, wherein the second motor is a birotor motor which consists of an inner rotor, an outer rotor and a stator; the composite planet gear set comprises a front planet gear set and a rear planet gear set; the front planet gear set comprises a front set solar wheel, a front set planet wheel, a front set gear ring and a planet carrier shared by a front planet set and a rear planet set; the rear planet gear set comprises a rear set solar wheel, a rear set planet wheel, a rear set gear ring and a planet carrier shared by the front planet set and the rear planet set. The birotor motor is adopted to achieve a double-mode function, the requirement on a driving motor is reduced, and the second locker can lock the first motor when the motor is about zero rotation speed, so that the first motor is prevented from operating in low efficiency, and the efficiency of the system is improved; as the birotor motor is adopted, and the inner rotor and the outer rotor can participate in regeneration brake simultaneously, the brake energy can be relatively effectively recycled.

Description

technical field [0001] The invention relates to a power system of a hybrid vehicle, in particular to a dual-rotor motor composite planetary row hybrid power system. Background technique [0002] At present, typical cross-connected hybrid vehicles include Toyota's hybrid system and GM's advanced hybrid system. Among them, the Toyota hybrid system can only realize one mode of input power splitting, which has higher requirements on the drive motor and increases the cost of the whole vehicle. Most of the general-purpose advanced hybrid systems use a three-row planetary gear mechanism for power splitting, and need to control multiple clutches and lockups for mode switching, resulting in complex structures and difficult control; too many clutches and lockups increase the system cost and reduce system reliability. Contents of the invention [0003] The object of the present invention is to provide a dual-rotor motor composite planetary row hybrid power system. [0004] The inv...

AI Technical Summary

Problems solved by technology

Most of the general-purpose advanced hybrid systems use a three-row planetary gear mechanism for power splitting, and need to control multiple clutches and lockups for mode switching, resulting in complex structures and difficult control; too many clutches and lockups increase the system cost, and makes the system less reliable

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