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US 2006/0048735 A1Published application
Engine control device of contruction machinery
AssigneeKobelco Construction Machinery Co., Ltd.
InventorsYoshiyasu Umezu, Yoshiki Kamon
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AssigneeKobelco Construction Machinery Co., Ltd.
InventorsYoshiyasu Umezu, Yoshiki Kamon
Estimating the term…
An engine control device for a construction machine of the present invention is configured so that the engine control device comprises an engine as a power source, a controller for performing an automatic stop control to automatically stop the engine when a predetermined automatic stop condition is met, a water temperature sensor for detecting a cooling water temperature of the engine, and that after start-up of the engine, even if the automatic stop condition is met, the engine is not automatically stopped until the detected water temperature reaches a predetermined value or more to complete a warm-up operation. The engine control device is also configured so that before the engine is automatically stopped, a cool-down operation of the engine is performed as required and after the engine is stopped, the engine is restarted as required and the warm-up operation is performed.
An engine control device for a construction machine, characterized in that said engine control device comprises an engine as a power source, control means for performing an automatic stop control to automatically stop said engine when a predetermined automatic stop condition is met, and warm-up state detecting means for detecting a warm-up state of said engine and wherein said control means is adapted to perform said automatic stop control in a condition that completion of a warm-up operation for said engine is detected by said warm-up state detecting means.
An engine control device for a construction machine, characterized in that said engine control device comprises an engine as a power source, control means for performing an automatic stop control to automatically stop said engine when a predetermined automatic stop condition is met, and cool-down necessity detecting means for detecting whether or not said engine is in a state where a cool-down operation is required and wherein said control means is adapted to perform said automatic stop control in a condition that a cool-down period is kept before said engine is automatically stopped when said cool-down necessity detecting means detects that said engine is in an operation state where said engine requires the cool-down operation.
An engine control device for a construction machine, characterized in that said engine control device comprises an engine as a power source, control means for performing an automatic stop control to automatically stop said engine when a predetermined automatic stop condition is met, and warm-up necessity detecting means for detecting whether or not said engine is in a state where a warm-up operation of said engine is required, and wherein said control means is adapted to automatically restart said engine when said warm-up necessity detecting means detects that said engine is in the state where the warm-up operation is required after said engine is automatically stopped by said automatic stop control.
Dependencies are inferred from the claim text.