Hybrid vehicle power generation control device
AssigneeNissan Motor Co., Ltd.
InventorsAtsushi Tsukizaki, Masato Koga, Hidekazu Yagi
Life of this patent
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Abstract
A power generation control device is provided for a hybrid vehicle that prevents unintended engagement of a released engagement clutch during idle power generation. An internal combustion engine is operated during idle power generation so that the input-output differential rotation speed of engagement clutches for selectively connecting an electric motor and/or the internal combustion engine to the drive wheel becomes a value greater than or equal to a rotation difference threshold value at which the engagement clutches are not engaged.
Claims6
A power generation control device for a hybrid vehicle having an electric motor and an internal combustion engine as power sources, and having a transmission that realizes a plurality of gear shift stages in a drive system from the power sources to a drive wheel,
- the transmission having engagement clutches as shifting elements that switch between gear shift stages for meshing engagement due to a stroke from a disengaged position, the power generation control device comprising:
- a power generation controller that transmits a drive force from the internal combustion engine to the electric motor, and that carries out power generation by the electric motor based on a power generation request,
- the engagement clutches being clutches that connect the power sources and the drive wheel, and
- when idle power generation by the electric motor is carried out while the vehicle is stopped, the power generation controller operates the internal combustion engine so that an input-output differential rotation speed of the engagement clutches becomes greater than or equal to a rotation difference threshold value at which the engagement clutches are not engaged.
Dependencies are inferred from the claim text.