US 12,280,785 B2
Control apparatus for vehicle
Seiji Masunaga, Toyota (JP); and Shingo Eto, Gamagori (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Dec. 30, 2022, as Appl. No. 18/148,739.
Claims priority of application No. 2022-003911 (JP), filed on Jan. 13, 2022.
Prior Publication US 2023/0234591 A1, Jul. 27, 2023
Int. Cl. B60W 30/20 (2006.01); B60W 10/02 (2006.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01)
CPC B60W 30/20 (2013.01) [B60W 10/02 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 2710/021 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A control apparatus for a vehicle that includes a drive power source, drive wheels, and a power transmission apparatus which is disposed between the drive power source and the drive wheels and which includes a frictional engagement element configured to connect and disconnect transmission of a power between the drive power source and the drive wheels,
the control apparatus comprising a processor configured to:
execute a vibration suppression control for estimating torsional vibration of the power transmission apparatus, based on a preformulated vibration model, and controlling a torque of a rotating machine that is connected to the power transmission apparatus, so as to suppress the torsional vibration;
allow and inhibit execution of the vibration suppression control;
allow the execution of the vibration suppression control, when the frictional engagement element is in an engaged state, and when a differential rotation of the frictional engagement element has become smaller than a predetermined determination value even with the frictional engagement element being in a disengaged state; and
inhibit the execution of the vibration suppression control, when the differential rotation of the frictional engagement element is not smaller than the predetermined determination value with the frictional engagement element being in the disengaged state.