Compliantly Mounted Motor Assembly Utilizing Dual Levels of Vibration Isolation

a technology of vibration isolation and motor assembly, applied in the field of electric motors, can solve the problems of reduced level, many inherent limitations of such a power source, and vehicle still emitting harmful pollution

a technology of vibration isolation and motor assembly, applied in the field of electric motors, can solve the problems of reduced level, many inherent limitations of such a power source, and vehicle still emitting harmful pollution

US20160214475A1Inactive Publication Date: 2016-07-28ATIEVA USA INC
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  • Compliantly Mounted Motor Assembly Utilizing Dual Levels of Vibration Isolation
  • Compliantly Mounted Motor Assembly Utilizing Dual Levels of Vibration Isolation
  • Compliantly Mounted Motor Assembly Utilizing Dual Levels of Vibration Isolation

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Embodiment Construction

[0017]As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms “comprises”, “comprising”, “includes”, and / or “including”, as used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term “and / or” and the symbol “ / ” are meant to include any and all combinations of one or more of the associated listed items. Additionally, while the terms first, second, etc. may be used herein to describe various steps or calculations, these steps or calculations should not be limited by these terms, rather these terms are only used to distinguish one step or calculation from another. For example, a first calculation could be termed a second calculation, similarly, a first step...

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Abstract

A dual level, vibration isolation system is provided that isolates a vehicle in general, and the vehicle's passenger cabin in particular, from the vibrations generated by the vehicle's motor during normal operation. The first isolation level uses a first plurality of isolation bushings to mount the motor assembly to a first portion of the battery pack. The second isolation level uses a second plurality of isolation bushings to mount the first portion of the battery pack directly to the vehicle. In addition to providing two levels of vibration isolation, this compliant mounting scheme allows the mass of the battery pack to absorb and damp out undesirable rotational oscillations caused by the motor, especially when the motor is undergoing strong acceleration or deceleration.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a divisional of U.S. patent application Ser. No. 14 / 607,194, filed 28 Jan. 2015, the disclosure of which is incorporated herein by reference for any and all purposes.FIELD OF THE INVENTION[0002]The present invention relates generally to electric motors and, more particularly, to a motor assembly mounting system for use in an electric vehicle.BACKGROUND OF THE INVENTION[0003]In response to the demands of consumers who are driven both by ever-escalating fuel prices and the dire consequences of global warming, the automobile industry is slowly starting to embrace the need for ultra-low emission, high efficiency cars. While some within the industry are attempting to achieve these goals by engineering more efficient internal combustion engines, others are incorporating hybrid or all-electric drive trains into their vehicle line-ups. To meet consumer expectations, however, the automobile industry must not only achieve a green...

Claims

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Application Information

Patent Timeline
28 Jul 2016
Publication
US20160214475A1
IPC
B60K8/00; B60R13/08; B60L11/18
CPC
B60K8/00; B60L2210/44; B60R13/0838; B60L11/1803; B60K1/00; B60K1/04; B60K2001/001; B60K2001/0438
Inventors
RAWLINSON, PETER DORE