Electronically controlled fuel injection process and equipment in internal combustion engine

Abstract

Abstract PURPOSE:To sharply improve starting ability in the engine in such a way that fuel injection time when starting the engine is compensated in response to inhaled air temperature in the engine and to battery voltage. CONSTITUTION:During ordinary operation, an electronic control circuit 38 computes the reference injection time through each output from an air-flow meter 12 and a distributor 14. On another hand, at the time of being in the condition of starting the engine, the reference injection time for starting in response to the cooling water temperature is read out from the determined table which is memorized in ROM56, compensating factor in response to inhaled air temperature, and the effective injection time tau1 is computed by multiplying those values. Besides, an injection valve 36 is controlled in such a way that the fact that whether or not it is the synchronous injection time, the unavailable injection time tauv in responce to battery voltage is read out through the determined table in the ROM 56, and injection valve 36 is controlled by computing the synchronous fuel injection time taus using the added value of the both time tau1 and GAMMAs.

Inventors

• 👤 Nobuyuki Kobayashi
• 👤 伸行 小林
• 👤 Hiroshi Ito
• 👤 博 伊藤
• 👤 Kazuhiko Funato
• 👤 船戸　和彦

Bibliographic Details