Patent ID: 6928962
Filing Date: 2005-08-16
Classification: B60K,B60L,B60W,F01P,F02N,Y02T

Abstract:
1. A hot coolant type heat accumulating apparatus for a hybrid vehicle, comprising: an internal combustion engine provided with first and second coolant circulation systems through which a coolant is circulated using power from the engine; a heat accumulation tank that recovers from the internal combustion engine, via part of the second coolant circulation system, some of the coolant that has been heated by the engine, and stores that heated coolant; and a controller that automatically shuts off the internal combustion engine when a predetermined shutoff condition has been fulfilled, circulates the coolant in the second coolant circulation system while the internal combustion engine is shutoff, and inhibits recovery of the hot coolant while the internal combustion engine is shutoff by automatic shutoff; a condition to allow the automatic shutoff of the internal combustion engine when the hot coolant is recovered being set to be different from a condition to allow the automatic shutoff of the internal combustion engine when the hot coolant is not recovered.