Control apparatus for electric variable valve actuation...

Details Control apparatus for electric variable valve actuation... Control apparatus for electric variable valve actuation...

2007-09-18

2007-09-18

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

C123S090150, C123S179300, C123S347000

Reexamination Certificate

active

11376318

ABSTRACT:
An electric variable valve timing mechanism and a starter are actuated by electricity supplied from a common battery. During an engine starting process, the starter is actuated, and an electronic control unit controls the electric variable valve timing mechanism. The electronic control unit limits the actuation of the electric variable valve timing mechanism on the condition that, during the engine starting process, the voltage value of the battery falls below a predetermined threshold value that degrades the operation of the starter. As a result, the engine is started in a stable manner.

REFERENCES:
patent: 7096841 (2006-08-01), Hattori et al.
patent: 197 36 137 (1998-10-01), None
patent: B2-2917067 (1999-04-01), None
patent: A-2004-150397 (2004-05-01), None

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