Valve actuator responsive to gear shift for reducing torque shock
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorKatsuhiko Miyamoto
Life of this patent
Estimating the term…
Abstract
A valve moving control apparatus for an internal combustion engine comprising a control device for switching at least one valve by controlling a driving condition of an intake/exhaust valve, a load detecting device, a switch control device for outputting a switch signal to the control device, and a gear shift detecting device. The gear shift detecting device detects whether a gear is shifted to a relatively low gear in a gearbox. If the gear is shifted to a relatively low gear, a switching point for switching an actuation of the valve is shifted to a low load side in order to reduce torque shock caused by switching.
Claims12
A valve moving apparatus for an internal combustion engine comprising:
- control means for switching at least one valve of a cylinder by controlling a driving condition of an intake/exhaust valve in accordance with a driving condition of the internal combustion engine,
- load detecting means for detecting a load applied to the internal combustion engine,
- switch control means for outputting a switch signal to said control means so as to reduce number of actuating valves at a time when the load becomes equal or lower than a predetermined level and to increase number of actuating valves at a time when the load becomes higher than said predetermined level, and
- gear shift detecting means for detecting a gear shift in a gearbox,
- wherein in the event that said gear shift detecting means detects a relatively low gear shift, said switch control means changes said predetermined level to another predetermined level lower than said predetermined level.
Dependencies are inferred from the claim text.