초록 ▼

The present invention relates to a cooling fan failure detection apparatus for a hybrid vehicle. This apparatus comprises a cooling capacity calculation device which calculates a cooling capacity of a cooling fan provided in the hybrid vehicle; a battery heating value calculation device which calcul

The present invention relates to a cooling fan failure detection apparatus for a hybrid vehicle. This apparatus comprises a cooling capacity calculation device which calculates a cooling capacity of a cooling fan provided in the hybrid vehicle; a battery heating value calculation device which calculates a heating value of a battery provided in the hybrid vehicle; an assumed temperature change calculating device which calculates an assumed temperature change of the battery based on the heating value and the cooling capacity; an actual temperature change calculating device which calculates an actual temperature change of the battery; and a failure determination device which determines whether the cooling fan is failing by comparing the assumed temperature change calculated by the assumed temperature change calculating device and the actual temperature change calculated by the actual temperature change calculating device.

대표청구항 ▼

1. A hybrid vehicle comprising:an engine which outputs a driving force for the hybrid vehicle; a motor which outputs an assistant driving force so as to assist the driving force of the engine; a battery which supplies electric power to the motor when the assistant driving force is necessary, and whi

1. A hybrid vehicle comprising:an engine which outputs a driving force for the hybrid vehicle; a motor which outputs an assistant driving force so as to assist the driving force of the engine; a battery which supplies electric power to the motor when the assistant driving force is necessary, and which stores electric power generated by the motor when the assistant driving force is not necessary; a cooling fan which cools the battery; a cooling capacity calculation device which calculates a cooling capacity of the cooling fan; a battery heating value calculation device which calculates a heating value of the battery; an assumed temperature change calculating device which calculates an assumed temperature change of the battery based on the heating value and the cooling capacity; an actual temperature change calculating device which calculates an actual temperature change of the battery; and a failure determination device which determines whether the cooling fan is failing by comparing the assumed temperature change calculated by the assumed temperature change calculating device and the actual temperature change calculated by the actual temperature change calculating device.