发明授权
- 专利标题: Series drivetrain with CVT output
- 专利标题(中): CVT输出系列传动系
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申请号: US13325970申请日: 2011-12-14
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公开(公告)号: US08784246B2公开(公告)日: 2014-07-22
- 发明人: Benjamin Treichel , Bryan Cochran , Min Li
- 申请人: Benjamin Treichel , Bryan Cochran , Min Li
- 申请人地址: US IL Peoria
- 专利权人: Caterpillar Inc.
- 当前专利权人: Caterpillar Inc.
- 当前专利权人地址: US IL Peoria
- 代理机构: Miller, Matthias & Hull
- 主分类号: F16H3/72
- IPC分类号: F16H3/72
摘要:
An electric drive system for driving a machine includes first and second electric drive motors linked to sun and ring gears respectively of a planetary output stage, and a ring brake associated with the ring gear to maintain the ring gear in a locked position. The carrier drives a fixed gear series drive train. In a first regime of operation corresponding to a first range of machine speeds, a controller employs the ring brake to brake the ring gear, and actuates only the first electric drive motor at a speed sufficient to yield the desired machine speed. In a second regime, corresponding to a second range of machine speeds, the controller drives the first electric drive motor at maximum speed, releases the ring brake, and drives the second electric drive motor so as to yield the desired machine speed.
公开/授权文献
- US20130157808A1 Series Drivetrain With CVT Output 公开/授权日:2013-06-20