Abstract: A hydraulic circuit for a vehicle driving device includes an oil pump, a clutch oil passage, a cooling oil passage, a pressure regulating valve, and a shift valve. The cooling oil passage guides oil to a cooled portion of a vehicle. Supply of oil to the clutch oil passage and the cooling oil passage is switched by switching of the pressure regulating valve and the shift valve. The cooling oil passage includes: a shaft center cooling oil passage which supplies cooling oil to a shaft center of a rotation shaft of an electric motor mounted on the vehicle; and a cooling oil passage shift valve which switches presence/absence of supply of oil to the shaft center cooling oil passage.

Abstract: A hydraulic circuit for a vehicle driving device includes an oil pump, a clutch oil passage, a cooling oil passage, a pressure regulating valve, and a shift valve. The cooling oil passage guides oil to a cooled portion of a vehicle. Supply of oil to the clutch oil passage and the cooling oil passage is switched by switching of the pressure regulating valve and the shift valve. The cooling oil passage includes: a shaft center cooling oil passage which supplies cooling oil to a shaft center of a rotation shaft of an electric motor mounted on the vehicle; and a cooling oil passage shift valve which switches presence/absence of supply of oil to the shaft center cooling oil passage.

Abstract: When hydraulic information is not available for use, a lock mechanism control unit of a transmission's rotating shaft operated by hydraulic pressure sets the shift range to a non-running range and sets a parking lock to an unlocked state if a vehicle is in a running state and rotation speed of a drive unit is equal to or higher than a predetermined value, but sets the shift range to a parking range and sets the parking lock to a locked state if the vehicle is in a non-running state or the rotation speed is lower than the predetermined value.

Abstract: Provided is a control device unit installation structure for a transmission in which wear of a terminal of a control device unit electrically connected to a lumped coupler is suppressed when the control device unit is fixed to a cover constituting a part of an outer wall of a transmission. In the control device unit installation structure for a transmission (1) in which a control device unit (60) of the transmission (1) of a vehicle is directly mounted on an outer wall of the transmission (1) and a harness connected to a functional part inside the transmission (1) is electrically connected to the control device unit (60), the control device unit (60) is installed on one cover (12) forming a part of the outer wall, and the harness is coupled to the controller device unit (60) on the one cover (12) via a lumped coupler installed in the transmission (1).

Abstract: In a control apparatus for an automatic transmission having multiple speeds constituted by four sets and speed selecting mechanisms corresponding to the four sets, assuming the speeds as seven among eight speeds of A to H in order of gear ratio, the four sets are constituted by a first set of A having a largest gear ratio and C that is next but one; a second set including at least H having a smallest gear ratio; a third set of B and D between two of the first set; and a fourth set including two of E, F and G between the second and third sets, and one of first and second pressure regulators selectively supplies hydraulic pressure to two of the mechanisms corresponding to the first and second sets, while the other thereof selectively supplies hydraulic pressure to two of the mechanisms corresponding to the third and fourth sets.

Abstract: In a control apparatus for an automatic transmission having multiple speeds constituted by four sets and speed selecting mechanisms corresponding to the four sets, assuming the speeds as seven among eight speeds of A to H in order of gear ratio, the four sets are constituted by a first set of A having a largest gear ratio and C that is next but one; a second set including at least H having a smallest gear ratio; a third set of B and D between two of the first set; and a fourth set including two of E, F and G between the second and third sets, and one of first and second pressure regulators selectively supplies hydraulic pressure to two of the mechanisms corresponding to the first and second sets, while the other thereof selectively supplies hydraulic pressure to two of the mechanisms corresponding to the third and fourth sets.