Patent ID: 8700242
Filing Date: 2014-04-15
Classification: B60K,B60L,B60W,F16H,Y02T

Abstract:
1. A hybrid vehicle having an internal-combustion engine and an electric motor connected to an electricity storage device, comprising: a motive power transmitting system; and an electronic control unit that enables engagement and disengagement of a transfer of the motive power from one or both of the electric motor and the internal-combustion engine to a driven section and a transfer of the motive power between the electric motor and the internal-combustion engine through the motive power transmitting system, further comprising: a temperature sensor which detects the temperature of the electricity storage device; wherein the motive power transmitting system has a first transmission system capable of transferring the motive power from one or both of the electric motor and the internal-combustion engine to the driven section at a plurality of first transmission stages having different transmission ratios, and a second transmission system capable of transferring the motive power from the internal-combustion engine at a plurality of second transmission stages having different transmission ratios, and the electronic control unit controls the outputs of the electric motor and the internal-combustion engine such that a transmission stage is shifted to either the one transmission stage of the first transmission system or one of the pair of transmission stages of the second transmission system in a low temperature state, in which the temperature is below a first predetermined temperature, or a high temperature state, in which the temperature is equal to or higher than a second predetermined temperature, which is higher than the first predetermined temperature.