Valve timing controller for engine

Details Valve timing controller for engine Valve timing controller for engine

2007-11-27

2009-12-29

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

07637235

ABSTRACT:
A valve timing controller of an engine reduces degradation of drivability such as a feeling of jumping out of a vehicle and achieves a rapid increase in engine output according to a throttle operation amount. An ECU shifts a phase of a cam shaft toward a control target value A at a reference update speed C1when it is judged that a rider does not desire an output increase, and shifts the phase of the cam shaft toward the control target value A at a transient update speed C2higher than the reference update speed C1when it is judged that the rider desires an output increase.

REFERENCES:
patent: 2003/0200943 (2003-10-01), Wada et al.
patent: 2005-054590 (2005-03-01), None

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