发明申请
- 专利标题: METHODS AND SYSTEMS FOR ASSISTED DIRECT START CONTROL
- 专利标题(中): 辅助直接起动控制的方法和系统
-
申请号: US12541023申请日: 2009-08-13
-
公开(公告)号: US20110039657A1公开(公告)日: 2011-02-17
- 发明人: Alex O'Connor Gibson , Gregory Michael Pietron , Seung-Hoon Lee , Yuji Fujii
- 申请人: Alex O'Connor Gibson , Gregory Michael Pietron , Seung-Hoon Lee , Yuji Fujii
- 申请人地址: US MI Dearborn
- 专利权人: FORD GLOBAL TECHNOLOGIES, LLC
- 当前专利权人: FORD GLOBAL TECHNOLOGIES, LLC
- 当前专利权人地址: US MI Dearborn
- 主分类号: B60W10/10
- IPC分类号: B60W10/10 ; B60W30/00
摘要:
Systems and methods are provided for controlling a vehicle system including an engine that is selectively shut-down during engine idle-stop conditions, the system further including a hydraulic circuit comprising a hydraulically actuated transmission component, an accumulator, and an auxiliary transmission fluid pump. One example method comprises, during a first idle-stop engine shut-down condition, where the accumulator pressure is above a threshold, delivering pressurized transmission fluid to the hydraulic circuit from the accumulator, while disabling the auxiliary pump. The method further comprises, during a second idle-stop engine shut-down condition, where the accumulator pressure is below the threshold, operating the auxiliary pump and delivering at least some pressurized transmission fluid to the hydraulic circuit from the operating pump without travelling through the accumulator.
公开/授权文献
- US08216112B2 Methods and systems for assisted direct start control 公开/授权日:2012-07-10