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Electric drive unit, hybrid module, and drive assembly for motor vehicle

An electric drive unit and motor vehicle technology, applied to the electric drive unit, can solve the problems of motor loss, insufficient cooling of the most heated area, insufficient cooling, etc., and achieve the effect of improving efficiency and small size

Pending Publication Date: 2022-01-28
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, this cooling may not be sufficient to cool the most heated regions in relation to the corresponding constructional realities
In the event of insufficient cooling, power losses occur in the respectively associated electric motors

Method used

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  • Electric drive unit, hybrid module, and drive assembly for motor vehicle
  • Electric drive unit, hybrid module, and drive assembly for motor vehicle
  • Electric drive unit, hybrid module, and drive assembly for motor vehicle

Examples

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Effect test

Embodiment Construction

[0078] exist figure 1 A cutaway side view of a hybrid module 2 according to the invention is shown in .

[0079] The hybrid module 2 here comprises an electric drive unit 1 designed according to the invention, which has a drive shaft 20 and a first electric rotary machine 30 , the rotor 31 of which is fixedly connected to the drive shaft. 20 coupling. Furthermore, the hybrid module 2 includes a second rotary machine 40 , the rotor 41 of which is arranged in a rotationally fixed manner on the output shaft 60 , and a clutch arrangement 70 .

[0080] The driven shaft 60 is connected at its first axial end section 61 to the clutch device 70 and here forms an output side 72 of the clutch device 70 , wherein the input side 71 of the clutch device 70 is formed by the drive shaft 20 . The clutch device 70 is here arranged axially between the two electric rotary machines 30 , 40 .

[0081] The drive shaft 20 is designed as a hollow shaft and is radially surrounded in parts by a driv...

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Abstract

The invention relates to an electric drive unit, in particular as part of a hybrid module or a hybrid transmission, to a hybrid module for a motor vehicle, in particular for a hybrid motor vehicle, and to a drive assembly for a motor vehicle. An electric drive unit (1), in particular as part of a hybrid module (2) or a hybrid transmission, comprises a driveshaft (20) and a first rotation machine (30), the rotor (31) of which is rotationally fixed to the driveshaft (20), wherein an axial flow channel (10) is formed in the rotor (31) at a distance to the driveshaft (20), at least one component of the length of said axial flow channel running parallel to the rotational axis (3) of the rotor (31) such that heat can be transferred to a fluid in the axial flow channel (10) during the operation of the first electric rotation machine (30). By using the electric drive unit according to the invention, the hybrid module equipped therewith, and a drive assembly which comprises the hybrid module, an optimal cooling function can be combined with an inexpensive design while maintaining a low installation space requirement.

Description

technical field [0001] The invention relates to an electric drive unit, in particular as part of a hybrid module or as part of a hybrid transmission, a hybrid module for a motor vehicle, in particular a hybrid motor vehicle, and a drive for a motor vehicle. Background technique [0002] Various drives or drive units for hybrid vehicles are known from the prior art. [0003] DE 10 2015 222 690 A1, DE 10 2015 222 691 A1 and WO 2017 084 887 A1 describe a method for controlling a drive of a hybrid vehicle with a transmission and a hybrid vehicle equipped with a transmission, the The hybrid vehicle is configured to carry out the method. [0004] DE 10 2015 222 692 A1, DE 10 2015 222 694 A1, WO 2017 084 888 A1 and WO 2017 084 889 A1 describe a method for operating a drive of a hybrid vehicle with a transmission and a vehicle equipped with a transmission A hybrid vehicle configured to perform the method. [0005] A corresponding hybrid vehicle in the method comprises a drive wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/32H02K9/19
CPCH02K1/2766H02K1/32H02K9/19H02K2201/06Y02T10/62
Inventor A·特林肯舒S·莱曼M·黑尔费尔C·昂里克W·鲁德
Owner SCHAEFFLER TECH AG & CO KG
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