Control device of hybrid vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorKaoru Ohtsuka
Life of this patent
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Abstract
A control device of a hybrid vehicle, the hybrid vehicle including an engine, a motor as a traveling power source, and a battery in which electric power to be supplied to the motor is charged, includes: a transient operation controller performing, when absolute values of an outputtable electric power and a chargeable electric power of the battery are small at a time of a transient operation of the engine, a transient operation of controlling an operating point of the engine within a wide range from low output to high output, at a position where a thermal efficiency is lower than the thermal efficiency at a time of a steady operation, and of controlling the engine to be in a combustion state where a margin to a combustion limit is greater than the margin in the steady operation.
Claims6
A control device of a hybrid vehicle, the hybrid vehicle comprising an engine, a motor as a traveling power source, and a battery in which electric power to be supplied to the motor is stored, the control device comprising:
- a transient operation controller configured to, based on absolute values of an outputtable electric power and a chargeable electric power of the battery being smaller than respective predetermined values at a time of a transient operation of the engine, perform a transient operation of:
- controlling an operating point of the engine within a wide range from low output to high output, at a position where a thermal efficiency of the engine is lower than the thermal efficiency of the engine at a time of a steady operation, and
- controlling the engine to operate in a combustion state where a margin to a combustion limit is greater than the margin in the steady operation,
- wherein the outputtable electric power and the chargeable electric power are calculated based on a temperature of the battery or a state of charge of the battery.
Dependencies are inferred from the claim text.