Control unit for variable valve timing mechanism

Details Control unit for variable valve timing mechanism Control unit for variable valve timing mechanism

2005-03-08

2005-03-08

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C074S56800M, C092S121000

Reexamination Certificate

active

06863037

ABSTRACT:
A controller that outputs control signals to an actuator of a variable valve timing mechanism is integrally equipped with a cam sensor that takes out from a camshaft signals for discriminating a cylinder corresponding to a reference piston position. The controller discriminates the cylinder corresponding to the reference piston position, computes a rotation phase of the camshaft relative to a crankshaft, and transmits the result of the cylinder discrimination process to an engine controller.

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patent: 6276316 (2001-08-01), Arai et al.
patent: 6357403 (2002-03-01), Yano
patent: 7-332118 (1995-12-01), None

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