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US 5,617,831 AGranted
Diesel engine startup controller
AssigneeNissan Motor Co., Ltd.
InventorTakashi Shirakawa
Life of this patent
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Abstract
Fuel injection is prevented until an injection timing of a fuel injection device detected during cranking of a diesel engine, is identical to a target injection timing. Preferably, the fuel injection timing is advanced during the prevention period according to fuel properties. In this way, startup time is shortened, and toxic components contained in exhaust gas are reduced during startup.
Claims12
A startup controller for use with a diesel engine, said engine having cranking means to start said engine and means for injecting fuel into a combustion chamber of said engine, comprising:
- means for detecting an engine running condition,
- means for determining a fuel injection target timing of said injecting means based on the engine running condition,
- means for controlling a fuel injection timing of said fuel injection means to said fuel injection target timing,
- means for detecting an injecting action of said injecting means, and
- means for preventing fuel injection by said injecting means after engine cranking by cranking means until the detected timing of said injecting action becomes identical to said fuel injection target timing.
2 more elements
Dependencies are inferred from the claim text.