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electric shaft

A technology of electric shaft and drive shaft, applied in the field of electric shaft, can solve the problems of increasing cable size and high loss

Active Publication Date: 2021-05-11
BORGWARNER SWEDEN AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High currents due to relatively low voltage solutions proposed for high electrical power installations such as electric propulsion units, which cause high losses and increase cable size

Method used

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Embodiment Construction

[0019] In the following various embodiments a torque vectoring device will be described. first, figure 1 A driveline arrangement 10 for a four wheeled vehicle is shown. The driveline 10 includes a front axle 12 and a rear axle 14 . The front axle 12 is driven by an engine 16 , such as that of an internal combustion engine, via a gearbox 18 . The rear axle 14 is provided with an electric axle arrangement 20 for allowing hybrid drive of the vehicle; ie allowing rear only drive, four wheel drive or only front wheel drive. Before turning to the details of electric shafts, it should be realized that the electric shafts described here are not limited to figure 1 Drive line configuration shown. On the contrary, the electric axle proposed by the present invention can be used in various drive line configurations with or without engine specifications.

[0020] Hybrid drives are generally expected to be used in passenger cars or other four-wheeled vehicles. Hybrid drive can mean th...

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Abstract

An electric shaft is provided. The electric shaft includes an electric motor (40) selectively connected to a differential (30) via a reduction gear (50) and a planetary gear set (60) having an input (66) and two outputs (64, 66), the electric shaft (20) further includes a transmission mechanism (70) configured to selectively move the differential housing (32) connected to one of said outputs (66, 64).

Description

technical field [0001] The invention relates to electric shafts. In particular, the invention relates to electric axles of four-wheeled vehicles, such as passenger cars. Background technique [0002] At present, the power system of passenger cars is based on 12V. Due to the relatively low voltage solutions proposed for high electrical power installations such as electric propulsion units, large currents result, which cause high losses and increase the cable size. [0003] In recent years, there has been a trend to add 48V power systems to existing 12V systems. As electrical power increases, new and improved solutions can be used to replace previous solutions that required additional high-power electronics. [0004] One such example is hybrid technology, ie, technology that adds electric drive to existing internal combustion engine drives and allows the vehicle to be powered by electricity, internal combustion engines, or both. The applicant has previously proposed severa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K1/00B60K17/04
CPCB60K1/00B60K17/046B60K2001/001F16H48/36F16H2048/364F16H2048/368B60K17/08F16H3/54F16H37/0813F16H2200/0034F16H2200/2005F16H2200/2064F16H2200/2094
Inventor K·尼尔森
Owner BORGWARNER SWEDEN AB