Drive unit vibration damping support for electric motor-driven vehicle
US8083243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | May 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K2007/0092
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A drive unit vibration damping support for use in an electric motor-driven vehicle combines the following structural features. A subframe construction in which a drive unit is supported in vibration damping fashion on a subframe through a first vibration damping device, and the subframe is supported in vibration damping fashion on a vehicle through a second vibration damping device. A total spring constant of the first vibration damping device in a direction of input of torque reaction force of the drive unit is larger than a total spring constant of the second vibration damping device. An average value of a distance between a torque roll axis of the drive unit and the second vibration damping device is greater than an average value of a distance between the torque roll axis and the first vibration damping device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.