Invention Grant
- Patent Title: Retarded intake cam phaser to improve engine start/stop quality
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Application No.: US15124049Application Date: 2015-03-03
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Publication No.: US10378502B2Publication Date: 2019-08-13
- Inventor: Xiaobing Liu , Paul Nahra
- Applicant: BorgWarner Inc.
- Applicant Address: US MI Auburn Hills
- Assignee: BorgWarner Inc.
- Current Assignee: BorgWarner Inc.
- Current Assignee Address: US MI Auburn Hills
- Agency: BrooksGroup
- International Application: PCT/US2015/018389 WO 20150303
- International Announcement: WO2015/138185 WO 20150917
- Main IPC: F01L1/34
- IPC: F01L1/34 ; F02P5/15 ; F01L1/344 ; F02D13/02 ; F02N11/08 ; F02N19/00 ; F02P5/152

Abstract:
A number of variations may include a method comprising controlling the combustion phase timing in the first firing cycle of a start/stop combustion engine comprising: providing a camshaft operatively connected to an extended range intake cam phaser; fully or partially retarding the extended range intake cam phaser during an engine restart to control a position of the camshaft and prevent pre-ignition; and retarding a spark timing in the first cylinder to delay the combustion phase timing to improve NVH.
Public/Granted literature
- US20170082082A1 RETARDED INTAKE CAM PHASER TO IMPROVE ENGINE START/STOP QUALITY Public/Granted day:2017-03-23
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