Patent ID: 9120480
Filing Date: 2015-09-01
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S

Abstract:
1. A hybrid electric vehicle comprising: a wet clutch device configured to establish and interrupt connection between an engine and an electric motor both serving as a traveling power source; a transmission capable of being switched between a driving range in which driving force of the traveling power source can be transmitted to driving wheels and a non-driving range in which transmission of the driving force to the driving wheels is interrupted; a battery configured to supply electrical power to the electric motor acting as a motor and to be charged by the electric motor acting as a generator, and in which the wet clutch device is kept disengaged while the vehicle is at a standstill with the transmission switched to the non-driving range; and a battery warm-up apparatus for warming up the battery comprising wherein the wet clutch device includes a first clutch and a second clutch connected in parallel to the engine; wherein the transmission is a dual-clutch transmission including a first shifting mechanism and a second shifting mechanism connected to the first clutch and the second clutch, respectively; wherein the electric motor is interposed between the second clutch and the second shifting mechanism; wherein when the vehicle is at a standstill with the transmission switched to the non-driving range, the first clutch and the second clutch are held in disengaged state; and wherein when the temperature of the battery is judged to be less than the warm-up determination value while the vehicle is at a standstill with the transmission switched to the non-driving range, the battery warm-up control unit switches only the second clutch to engaged state and varies the driving force of the electric motor to the positive side and the negative side.