20240051379. INTEGRATED ELECTRIC DRIVE AXLE LAYOUT simplified abstract (DANA GRAZIANO S.R.L.)

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INTEGRATED ELECTRIC DRIVE AXLE LAYOUT

Organization Name

DANA GRAZIANO S.R.L.

Inventor(s)

Marco Silvestri of Rivoli (IT)

INTEGRATED ELECTRIC DRIVE AXLE LAYOUT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240051379 titled 'INTEGRATED ELECTRIC DRIVE AXLE LAYOUT

Simplified Explanation

The patent application describes systems for improving the efficiency of an electric drive axle while reducing the number of components and weight of the axle.

  • The electric drive assembly includes an electric motor with a rotor shaft supported by two rotor shaft bearings.
  • The gearbox has a layshaft layout, with at least one input gear mounted on the rotor shaft.
  • The multi-piece housing consists of a first housing section that supports the first rotor shaft bearing and the stator of the electric motor. The first housing section defines the inner boundary of a motor cooling jacket.
  • The second housing section partially overlaps with the first housing section and partially encloses both the gearbox and the electric motor. The second housing section defines the outer boundary of the motor cooling jacket.

Potential applications of this technology:

  • Electric vehicles: The improved efficiency and reduced weight of the electric drive axle can benefit electric vehicles by increasing their range and overall performance.
  • Hybrid vehicles: The technology can also be applied to hybrid vehicles to enhance their electric drive capabilities and improve fuel efficiency.

Problems solved by this technology:

  • Increased efficiency: The design of the electric drive axle helps to maximize the efficiency of the electric motor and gearbox, resulting in improved overall performance.
  • Component reduction: By integrating certain components and optimizing the layout, the number of components required for the electric drive axle is reduced, simplifying the design and potentially reducing costs.

Benefits of this technology:

  • Improved efficiency: The systems described in the patent application aim to increase the efficiency of the electric drive axle, leading to better energy utilization and potentially longer battery life.
  • Weight reduction: By reducing the number of components and optimizing the housing design, the overall weight of the electric drive axle can be reduced, contributing to improved vehicle efficiency and performance.


Original Abstract Submitted

systems are provided for increasing an efficiency of an electric drive axle, and reducing a number of components and weight of the axle. in one example, an electric drive assembly comprises an electric motor having a rotor shaft supported by a first rotor shaft bearing and a second rotor shaft bearing; a gearbox having a layshaft layout, where at least one input gear of the gearbox is mounted on the rotor shaft; and a multi-piece housing, the multi-piece housing including a first housing section supporting the first rotor shaft bearing and a stator of the electric motor; the first housing section defining an inner boundary of a motor cooling jacket; and a second housing section partially overlapping with the first housing section, the second housing section partially enclosing the gearbox and partially enclosing the electric motor; the second housing section defining an outer boundary of the motor cooling jacket.

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