Internal combustion engine with heat accumulating device
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazuki Iwatani, Makoto Suzuki, Katuhiko Arisawa, Masakazu Tabata, Kunihiko Hayashi
Life of this patent
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Abstract
An electronic control unit (ECU) of an engine system starts a control (preheat) that supplies heat reserving hot water stored in a heat accumulating device to an engine prior to an engine start. The ECU determines a time that continues the preheat on the basis of a cooling water temperature of the engine so as to execute the engine start after a warming-up of the engine is reliably finished. Further, during the execution of the preheat, a lighting lamp is turned on, and that incidence is recognized to a driver. When the preheat is completed, the ECU automatically starts the engine.
Claims24
An internal combustion engine comprising:
- a combustion chamber;
- a heat accumulating device that stores a heat;
- a heat transferring device that transfers the heat stored in the heat accumulating device to raise the temperature of the combustion chamber through a predetermined heat transfer medium;
- a controller that determines a warming-up process executing period during which the heat transferring device transfers heat stored in the heat accumulating device to the combustion chamber through the predetermined heat transfer medium, said warming-up process taking place before the internal combustion engine is started;
- said controller monitoring and communicating information concerning the warming-up process;
- and
- a start operation invalidating device that prohibits the start operation of the internal combustion engine based on said information received from the controller.
An internal combustion engine comprising:
- a combustion chamber;
- a heat accumulating device that stores a heat;
- a heat transferring device that transfers the heat stored in the heat accumulating device to raise the temperature of the combustion chamber through a predetermined heat transfer medium;
- a controller that determines a warming-up process executing period during which the heat transferring device transfers heat stored in the heat accumulating device to the combustion chamber through the predetermined heat transfer medium, said warming-up process taking place before the internal combustion engine is started;
- said controller monitoring and communicating information concerning the warming-up process;
- and
- a start operation invalidating device that invalidates the start operation of the internal combustion engine based on said information received from the controller.
Dependencies are inferred from the claim text.