Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2006-12-19
2009-10-06
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S346000
Reexamination Certificate
active
07597074
ABSTRACT:
An engine includes two or more banks, VVTL mechanisms provided for the respective banks for changing the operating characteristics of intake valves, and a control device that controls the VVTL mechanisms. The control device controls the VVTL mechanisms by integrating a plurality of pieces of control information corresponding to the respective VVTL mechanisms. When one of the pieces of control information becomes unknown, the control device performs a process of learning the control information with respect to the VVTL mechanism for the bank involving the unknown control information, and continues to control the VVTL mechanism for the other bank or banks, using the corresponding control information.
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Chang Ching
Oliff & Berridg,e PLC
Toyota Jidosha & Kabushiki Kaisha
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