Controller for cylinder quantity controlled engine

Abstract

Abstract PURPOSE:To prevent reduction of the number of revolution and resonance with a chassis by delaying, through switching of a load, the transition from the whole cylinder operation to the partial cylinder operation of a cylinder quantity controlled engine which is equipped with a load controlling means for controlling the engine load amount due to auxiliaries. CONSTITUTION:A throttle valve 2, intake and exhaust valves, and a controller 18 for controlling the amount of power generation in a power generator are installed onto a multicylinder engine equipped with a power generator as auxiliaries. When a cylinder- in-rest discriminating circuit 29 into which an engine operation state signal is input transmits a reduced-cylinder signal, a transistor 41 is turned OFF immediately, and a transistor 24 is turned ON/OFF according to the output of a comparator 23 for comparing a set revolution number and an actual revolution number, and then the regulator of the power generator is controlled, through a comparator 25 and a transistor 39, to the amount of power generation corresponding to the number of revolution. In this case, the reduced-cylinder signal sent to a valve 212 for controlling the oil pressure supplied to an intake/exhaust valve suspension mechanism on the rest-cylinder side is delayed by a delaying circuit 33, and thus reducing of number of revolution in switching operation is prevented.

Inventors

• 👤 Masahiko Takagi
• 👤 高木　政彦
• 👤 Toru Hashimoto
• 👤 徹 橋本
• 👤 Yoshiro Danno
• 👤 団野　喜朗
• 👤 Tatsuro Nakagami
• 👤 中神　達郎
• 👤 Toyoaki Fukui
• 👤 豊明 福井

Bibliographic Details