Invention Grant
US09046010B2 Control unit for variable valve timing mechanism and control method for variable valve timing mechanism
有权
可变气门正时机构控制单元及可变气门正时机构的控制方法
- Patent Title: Control unit for variable valve timing mechanism and control method for variable valve timing mechanism
- Patent Title (中): 可变气门正时机构控制单元及可变气门正时机构的控制方法
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Application No.: US13845815Application Date: 2013-03-18
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Publication No.: US09046010B2Publication Date: 2015-06-02
- Inventor: Nobuhiko Matsuo , Kentaro Mikawa
- Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Applicant Address: JP Hitachinaka-shi
- Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Foley & Lardner LLP
- Priority: JP2012-063832 20120321
- Main IPC: F01L1/34
- IPC: F01L1/34 ; F02D13/00
Abstract:
A control unit for a variable valve timing mechanism for changing a cam phase by an electric actuator determines an influence on the operation of the variable valve timing mechanism based on the engine operating conditions. Then, based on the determination result, the control unit reduces the operation amount of the electric actuator in a predetermined range of the rotation angle of a camshaft.
Public/Granted literature
- US20130247850A1 CONTROL UNIT FOR VARIABLE VALVE TIMING MECHANISM AND CONTROL METHOD FOR VARIABLE VALVE TIMING MECHANISM Public/Granted day:2013-09-26
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