A threshold that is used in determining, based on a deviation between slip amounts, whether to stop slip control or not during the performance of feedback control in slip control is made smaller when pitch damping control is being performed than when pitch damping control is not being performed, during the performance of slip control of a lockup clutch. Therefore, slip control is likely to be stopped when the torque input to the lockup clutch is likely to fluctuate. In consequence, a control apparatus and a control method for a vehicle that make it possible to stably perform slip control of the lockup clutch while increasing the number of opportunities to perform the slip control and pitch damping control are provided.

A damping control device for a hybrid vehicle is provided that make it possible to suppress behavior that differs from a request of a driver. The damping control device includes a controller that calculates an amount of change in a target driving torque, and calculates an amount of change in a target motor torque. The damping control device also includes a damping rate variation unit that sets the damping of a feed forward control unit to a first damping rate when the target driving torque change amount and the target motor torque change amount both are positive or negative, and to a second damping rate, which is smaller than the first damping rate, when the target driving torque change amount and the target motor torque change amount have opposite positivity or negativity.

To avoid occurrence of difference in level of torque in a case where direction of relative rotation between internal combustion engine and rotary electric machine is reversed, in starting internal combustion engine with shift clutch device brought into direct engagement state. Control device controls vehicle drive device including transfer clutch device, rotary electric machine, and transmission device each disposed on power transfer path connecting internal combustion engine to wheels. In performing internal combustion engine start control, control device reduces engagement pressure of transfer clutch device wherein transfer torque of transfer clutch device becomes zero on reverse in direction of relative rotation (T04), at which rotational speed (Ne) of internal combustion engine becomes higher than rotational speed (Nin) of rotary electric machine, in pre-transition completion period before transfer clutch device in slip engagement state is transitioned to direct engagement state, while maintaining transmission device at non-slip state.

A hydraulic pressure control device for a continuously variable transmission of a vehicle which a continuously variable transmission mechanism; a stepwise variable transmission mechanism; a shift control means, the hydraulic pressure control device includes: the shift control means including a line pressure control section configured to increase the line pressure to be greater than the line pressure before a generation of an oil vibration when the oil vibration is generated in at least one of actual hydraulic pressures of the primary pressure and the secondary pressure, and the line pressure control section being configured to continue the increase of the line pressure until the shift of the stepwise variable transmission mechanism is finished when the stepwise variable transmission is shifted in a state where the line pressure is increased.

Disclosed are a method of controlling a mode transition in order to predict a driver's required torque to reduce non-driving fuel loss, and a hybrid vehicle for performing the method.

In particular, the method of controlling a mode transition of a hybrid vehicle may include: determining whether to change a first mode to a second mode based on a first torque; determining a second torque expected to be generated at a near-future time after a current time; determining whether or not an engine clutch engagement is possible at the near-future time based on the second torque or a predicted acceleration; and performing the change from the first mode to the second mode when the mode change from the first mode to the second mode is determined and the engine clutch engagement is possible.

A vehicle includes an engine, a traction motor, a clutch, and a controller. The clutch selectively couples the traction motor to wheels. The controller, in response to a torque output by the fraction motor achieving a torque limit while operating to partially satisfy a demand for driveline damping and while the clutch is locked, slips the clutch to completely satisfy the demand for driveline damping.

A clutch disposed between an engine and an automatic transmission and including a first engagement element connected to the engine and a second engagement element connected to the automatic transmission. The electronic control unit is configured to, when a predetermined condition is satisfied, execute predetermined control in which the engine is stopped, the clutch is disengaged, and the vehicle is caused to travel. The electronic control unit is configured to start the engine when the predetermined condition is not satisfied during execution of the predetermined control, and execute downshift of the automatic transmission such that the rotational speed of the second engagement element becomes equal to or higher than a predetermined rotational speed when the predetermined condition is not satisfied during the execution of the predetermined control and the rotational speed of the second engagement element is lower than the predetermined rotational speed, and then engage the clutch.

A driving control method for a hybrid vehicle is provided to overcome a slip of the vehicle by a conversion of an EV mode into an HEV mode. The driving control method includes: determining by a controller whether the hybrid vehicle is insufficiently driven backward only by power of a motor when the vehicle is driven backward on an uphill road by driving the motor backward; starting an engine and engaging a backward stage gear; releasing a first clutch and at the same time requesting a brake operation signal to the hybrid vehicle while the motor is converted into forward driving; and then engaging a second clutch and requesting a brake release signal to the hybrid vehicle while an engine clutch is engaged to control the hybrid vehicle to be started by the power of the motor and the engine.

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is couple to a transmission in response to a transmission upshift to reduce transmission output shaft torque disturbances.

An electrified vehicle includes a motor, a clutch, a transmission, a rotational speed sensor configured to detect a rotational speed of the motor, and a control circuit configured to control the motor. The control circuit performs: a learning process of detecting a change in the rotational speed of the motor by the rotational speed sensor when the shift change is performed; and a control process of controlling the rotational speed of the motor based on the change in the rotational speed detected in the learning process, when the shift change is performed after the learning process.