A hybrid powertrain device for a new energy vehicle

Abstract

The invention discloses a hybrid power assembly device for a new energy vehicle. The hybrid power assembly device comprises an engine, a clutch coupling type motor and a speed changing box which are coaxially connected in series; a separation clutch is integrated with a driving motor; the separation clutch and the driving motor are arranged in parallel; the separation clutch is coupled into the inner part of a rotor of the driving motor; a control valve block is directly arranged on a shell of the clutch coupling type motor; the speed changing box is a double-clutch automatic speed changing box; the separation clutch and an inner clutch of double clutches of the speed changing box are universal; the separation clutch and the speed changing box adopt a common oil source design; according to the hybrid power assembly device, a torsional vibration reduction device on the front face of the double clutches of the speed changing box is not used; the torsional vibration reduction device is additionally arranged between the engine and the separation clutch, and an engine flywheel is integrated with the torsional vibration reduction device; a double-mass flywheel design is adopted. The hybrid power assembly device for the new energy vehicle has the advantages of small axial size, compact structure, convenience for assembling and detecting, small changes of traditional vehicles and the like.

Description

technical field [0001] The invention belongs to the technical field of new energy hybrid electric vehicle power assembly, and in particular relates to a hybrid electric assembly device based on the P2 configuration of the whole vehicle. Background technique [0002] For the design and layout of the powertrain in the vehicle, the industry divides the hybrid configuration of the vehicle into P1, P2, P3, P4, Power split and other structural forms. The P2 configuration is a configuration in which the drive motor is arranged between the engine and the gearbox, and the clutch is disengaged. [0003] The hybrid powertrain device based on the P2 configuration is basically composed of an engine, a separation clutch, a drive motor and a gearbox. Combined with the power transmission path, there are currently two main design methods. One is to connect the engine, separation clutch, drive motor and gearbox in series; the other is to connect the engine, separation clutch and gearbox in ...

AI Technical Summary

Problems solved by technology

Although the problem of excessive axial length of the hybrid powertrain has been solved, since the drive motor is arranged on the side of the gearbox and driven by a belt or chain, the radial space required is relatively large

The vertical placement of the powertrain of the vehicle will affect the layout of the body floor, the driver's control space and the comfort of the ride.

[0006] At the same time, the drive motor and the gearbox are driven by a belt or chain. Due to the stretchability of the belt and chain, when the transmission load of the vehicle changes, the transmission system is prone to vibration, which affects the handling stability and comfort of the vehicle, especially in Vibration becomes more pronounced when belts and chains are worn and elongated

[0007] In addition, in order to adapt to the layout of the whole vehicle, the hybrid powertrain devices of the above two design methods are very complicated in structure, low in modularization degree, and inconvenient to assemble

And almost all of them adopt brand-new design, which has poor common platform with traditional cars and high cost

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