Method for detecting phases of camshaft and engine in four cylinders motor electromechanical controlled
Title:
Method for detecting phases of camshaft and engine in four cylinders motor electromechanical controlled
Application Number:
200510011662
Application Date:
2005/04/29
Announcement Date:
2005/10/26
Pub. Date:
2007/02/07
Publication Number:
1687712
Announcement Number:
1298986
Grant Date:
2007-2-7
Granted Pub. Date:
2007-2-7
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
F02D 41/34, F02D 45/00, G01D 5/244, F01L 1/20
Applicant(s):
Tsinghua Univ.
Inventor(s):
Li Jianqiu, Ouyang Minggao, Yang Fuyuan, Zhang Kexun, Zhou Ming
Key Words:
four cylinders, motor electromechanical controlled, camshaft, phases, detect
Abstract:
The invention the four-cylinder electric engine camshaft and the engine phase detecting method, and belongs to the electrical diesel engine control relative field. The crank tooth setup adopts the scheme of 28 normal teeth and 2 teeth lack; the camshaft has the normal teeth corresponding to each cylinder the extra 3 multi-teeth that are at the 1/6 between the first cylinder and the second cylinder, the 1/3 position between the second cylinder and the third cylinder normal teeth and the 1/2 position between the third and the forth cylinder normal teeth. Two counters separately count the number of the impulses of the camshaft and the crank; decide the teeth shape corresponding to the present camshaft impulse according to crank counter value to affirm the phase of the engine. The invention greatly reduces the time of the phase detecting.
Claim:
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PCT:
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  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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