| 摘要 |
PURPOSE:To make a valve operate with a high accuracy, by electrically driving a suction valve, exhaust valve and an air intake valve according to the crankshaft position, the number of revolutions and suction pressure. CONSTITUTION:The turning angle and number of revolutions of a crankshaft are detected by a crank angle sensor 11. Suction pressure is detected by a suction pressure sensor 15 whereby a suction amount is calculated. These data of information are inputted into a microcomputer through which the optimum timing and duration for each of a suction valve, exhaust valve and an air intake valve are calculated. Each valve is set in motion by the outputted electric signal. In this way, valve operation can be well controlled in a highly accurate manner. |
