Control device for hybrid vehicle power transmitting apparatus
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTatsuya Imamura, Yuji Iwase, Atsushi Tabata
Life of this patent
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Abstract
This invention relates to a control device for a hybrid vehicle power transmitting apparatus. A heat generation control is executed to increase a heat generation amount of an electric motor M1 when a differential portion 11 is placed in a non-differential state and a temperature of a shifting mechanism 10 is less than a given transmitting apparatus temperature determining value TEMP11. This allows the first electric motor M1 to develop a heat with which the temperature of a shifting mechanism 10 is promptly raised, thereby promptly completing a warm-up of the shifting mechanism 10 to achieve improved fuel consumption.
Claims18
A control device for a hybrid vehicle power transmitting apparatus, wherein,
- the hybrid vehicle power transmitting apparatus comprises (i) an electrically controlled differential portion having a differential mechanism connected between an internal combustion engine and drive wheels and at least one electric motor connected to the differential mechanism in a power transmissive state for controlling a differential state of the differential mechanism upon controlling an operating state of the electric motor, (ii) a shifting portion forming part of a power transmitting path, and (iii) a differential-state switching mechanism for switching the electrically controlled differential portion in a differential state operative to establish a differential action and a non-differential state in which the differential action is disabled, and
- the control device executes a heat generation control for increasing a heat generation amount of the at least one electric motor when the electrically controlled differential portion is placed under the non-differential state and a temperature of the hybrid vehicle power transmitting apparatus is less than a given on-non-differential-state temperature determining value.
A control device for a hybrid vehicle power transmitting apparatus, wherein
- the hybrid vehicle power transmitting apparatus having at least one electric motor connected to a power transmitting path extending from an internal combustion engine to drive wheels, and a shifting portion forming part of the power transmitting path, and
- the control device executes a heat generation control to increase a heat generation amount of the at least one electric motor when a temperature of the hybrid vehicle power transmitting apparatus is less than a given transmitting apparatus temperature determining value.
Dependencies are inferred from the claim text.