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US 12,214,650 B2Granted
Systems for drive axle
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorsMarcio Massari, Cassio Leme, Bruno Marocchio, Vinicius Ventura, Paula Nomura Watanabe
Life of this patent
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Abstract
Methods and systems are provided for an electric drive axle. In one example, a tube is pressed into a portion of a differential housing, wherein a mount, a reinforcement ring, a wheel hub assembly, and a brake housing are physically coupled to the tube. The tube defines an axle path of an electric drive axle from an electric motor to a wheel.
Claims19
A system, comprising:
- a first tube pressed into a first portion of a differential housing on a first side of an electric motor, wherein a mount, a first reinforcement ring, a wheel hub assembly, and a brake housing are physically coupled to the first tube, and wherein the first reinforcement ring is physically coupled to the first portion via a plurality of fasteners;
- and
- a second tube pressed into a second portion of the differential housing on a second side of the electric motor, the second side opposite the first side, wherein a second reinforcement ring is physically coupled to the second tube;
- wherein a first drive axle portion extends through the first tube and a second drive axle portion extends through the second tube, and wherein the second drive axle portion is different than the first drive axle portion;
- and
- wherein the first drive axle portion is coupled to a concentric axle adjacent to a first planetary gear set arranged in the first portion of the differential housing, and wherein the first reinforcement ring and the second reinforcement ring comprise respective dampeners.
3 more elements
A system for an electric drive axle, comprising:
- a differential housing comprising a first portion arranged on a first side of an electric motor and a second portion arranged on a second side of the electric motor, the second side opposite the first side;
- a first planetary gear set arranged in the first portion and a second planetary gear set arranged in the second portion;
- a first tube pressed into the first portion of the differential housing and supported by a first reinforcement ring physically coupled to the first portion, wherein the first reinforcement ring comprises a first section distal to the first portion of the differential housing having a first diameter and a second section proximal to the first portion of the differential housing having a second diameter, the second diameter equal to a diameter of the first portion of the differential housing and larger than the first diameter;
- and
- a second tube pressed into the second portion of the differential housing and supported by a second reinforcement ring physically coupled to the first portion;
- wherein the first tube and the second tube are concentric with the electric drive axle relative to a central axis and comprise a first drive axle portion extending through the first tube and coupled to a concentric axle at the first planetary gear set, and wherein a second drive axle portion extends through the second tube and is coupled to the concentric axle at the second planetary gear set.
3 more elements
A system, comprising:
- a differential housing comprising a first portion arranged on a first side of an electric motor and a second portion arranged on a second side of the electric motor;
- a first planetary gear set arranged in the first portion and a second planetary gear set arranged in the second portion;
- a first tube pressed into the first portion of the differential housing and physically coupled to a first mount, a first reinforcement ring, a first wheel hub assembly, and a first brake housing, wherein the first reinforcement ring comprises a first section having a first diameter and a second section having a second diameter, the second diameter larger than the first diameter, wherein the second section of the first reinforcement ring is physically coupled to the first portion via a plurality of fasteners, and wherein the first section of the first reinforcement ring includes a bracket and a dampener;
- and
- a second tube pressed into the second portion of the differential housing and physically coupled to a second mount, a second reinforcement ring, a second wheel hub assembly, and a second brake housing, wherein the second reinforcement ring is physically coupled to the second portion via a bracket;
- wherein the first tube and the second tube are concentric with the electric drive axle relative to a central axis and comprise a first drive axle portion extending through the first tube and coupled to a concentric axle at the first planetary gear set, and wherein a second drive axle portion extends through the second tube and is coupled to the concentric axle at the second planetary gear set.
3 more elements
Dependencies are inferred from the claim text.