Abstract: When an acceleration request is issued, an electronic control unit for a hybrid vehicle performs control for producing an acceleration feeling of setting a target engine rotation speed to an initial rotation speed (=basic initial value+initial value correction value) which is lower than an optimal-fuel-efficiency rotation speed at which required engine power is able to be most efficiently output and increasing the engine rotation speed from the initial rotation speed to the optimal-fuel-efficiency rotation speed at a rotation speed increase rate (=basic increase rate+increase rate correction value) based on the elapse of time. When the target supercharging pressure is high, the initial value correction value is set to a greater value and the increase rate correction value is set to a greater value than when the target supercharging pressure is low.

Abstract: A shifting control apparatus includes an overall-speed-position shifting control portion including: a synchronous shifting control portion to implement a synchronous control of shifting actions of the vehicular automatic transmission and the step-variable transmission portion to respective target ones of the overall speed positions and the gear positions, such that a moment of generation of a command to establish the target overall speed position is delayed with respect to a moment of generation of a command to establish the target gear position, so that the shifting actions take place in synchronization with each other, irrespective of different control response times of the shifting actions; and a multiple-step shifting control portion to command the synchronous shifting control portion such that the vehicular automatic transmission performs a shift-up action from a present one of the overall speed position to the target overall speed position through at least one intermediate overall speed position interme

Abstract: A shifting control apparatus includes an overall-speed-position shifting control portion including: a synchronous shifting control portion to implement a synchronous control of shifting actions of the vehicular automatic transmission and the step-variable transmission portion to respective target ones of the overall speed positions and the gear positions, such that a moment of generation of a command to establish the target overall speed position is delayed with respect to a moment of generation of a command to establish the target gear position, so that the shifting actions take place in synchronization with each other, irrespective of different control response times of the shifting actions; and a multiple-step shifting control portion to command the synchronous shifting control portion such that the vehicular automatic transmission performs a shift-up action from a present one of the overall speed position to the target overall speed position through at least one intermediate overall speed position interme

Abstract: An engine, a transmission unit which is connected to the engine and is shifted by an engagement apparatus, and a differential unit which connects the transmission unit and a drive wheel are included. The differential unit includes a first rotary element connected to an output element of the transmission unit, a second rotary element connected to a first rotary machine, and a third rotary element connected to the drive wheel. When an output from the first rotary machine is limited, the engagement apparatus is slipped and an operation point of the engine is changed. The change of the operation point can cause an increase in torque of the engine.

Abstract: A driving device for a hybrid vehicle includes a transmission unit configured to output a rotation of an engine while changing rotating speed of the engine; and a first rotating electric machine. The first rotating electric machine is configured to supply a torque for increasing the rotating speed of the engine at the time of starting up of the engine to the engine through the transmission unit. At the time of starting up of the engine, the gear shift stage of the transmission unit is switched to an overdrive state. Thus, a torque sufficient for starting up of the engine can be supplied to the engine, and hence the engine can be appropriately started up.

Abstract: A control apparatus for a dynamic power transmission apparatus is provided. The dynamic power transmission apparatus includes a differential mechanism, an electric generator, an electric motor, and a fluid coupling. The electric motor is disposed at a position apart from a transmission path along which a dynamic power of an engine is transmitted to a driving wheel. The fluid coupling is disposed between the electric motor and the transmission path. The control apparatus includes an electronic controller configured to restrict a charge of an electric storage apparatus with an electric power generated by the electric generator, depending on a state of the electric storage apparatus, and control the fluid coupling to differentially rotate and to drive the electric motor by the electric power such that a dynamic power loss is generated in the fluid coupling, when restricting the charge of the electric storage apparatus.

Abstract: A power transmission device includes: an engine; a rotary machine; and an oil pump connected to each of a rotary shaft of the engine and a rotary shaft of the rotary machine through a one-way clutch. The power transmission device is configured to allow the rotary machine to rotate at a rotational speed higher than the rotational speed corresponding to a speed of the engine and lower than the rotational speed corresponding to an idling speed of the engine at the time of startup of the engine.

Abstract: A control device of a hybrid vehicle includes an electric motor outputting a running torque at the time of motor running and a starting torque at engine start, in a state of the motor running using even the starting torque, the control device being configured to give a notification of the state to a driver when a charging capacity is smaller than a first predetermined value, and to start an engine when the charging capacity is smaller than a second predetermined value which is smaller than the first predetermined value.

Abstract: A vehicle control system for reducing shocks resulting from restarting an engine under EV running mode. The vehicle control system is applied to a vehicle including an engagement device that selectively connect the engine with the powertrain, and a motor adapted to generate a drive force and connected with the powertrain. In the vehicle, a first mode is selected to propel the vehicle by the motor while interrupting the torque transmission between the engine and the powertrain and stopping the engine, and a second mode is selected to propel the vehicle by the motor while allowing the torque transmission between the engine and the powertrain and stopping the engine. The vehicle control system selects the second mode if a control response of at least any of the engagement device and the motor is estimated to be out of a predetermine range when the vehicle is running while stopping the engine.

Abstract: A hybrid vehicle driving device includes: a first differential mechanism connected to an engine and transmitting a rotation of the engine; a second differential mechanism connecting the first differential mechanism and a drive wheel; engagement devices changing a speed of the first differential mechanism; and a valve arranged in a hydraulic circuit and regulating the engagement devices from simultaneously engaging. The second differential mechanism includes a first rotation element connected to an output element of the first differential mechanism, a second rotation element connected to a first rotating machine, and a third rotation element connected to a second rotating machine and the drive wheel. The valve regulates the engagement devices from simultaneously engaging at a time of traveling with the engine, and tolerates the engagement devices from simultaneously engaging at a time of traveling with the first rotating machine and the second rotating machine.

Abstract: A power transmission device for a hybrid vehicle includes: a transmission device that includes a carrier to which an engine rotation shaft is connected; a differential device that includes a plurality of rotation components individually connected to a drive wheel, an MG2 rotation shaft, an MG1 rotation shaft, and a ring gear of the transmission device; a gear shift adjustment device that is able to control the transmission device to a neutral state where the transmission of power between the carrier and the ring gear is not allowed or to a state where the transmission of power is allowed; and an HVECU that includes a first step of controlling the transmission device to the neutral state in a state where the transmission of power between the carrier and the ring gear is allowed.

Abstract: In a drive system, a first differential mechanism transmits engine rotation, a second differential mechanism connects the first differential mechanism with drive wheels, and a switching device changes a speed ratio of the first differential mechanism. The second differential mechanism has first, second, and third rotational elements, which connect respectively to the first differential mechanism, a first rotating machine, and a second rotating machine. In a first running condition, the vehicle runs using the second rotating machine as a power source, while differentially operating the first differential mechanism. In a second running condition, the vehicle runs using the second rotating machine as a power source, without differentially operating the first differential mechanism. A region in which the vehicle runs in the second running condition in the case where the engine cannot start by itself is larger than that in the case where the engine can start by itself.

Abstract: A power transmission device of a hybrid vehicle includes: a transmission including a planetary mechanism including a plurality of transmission rotational elements, one of the transmission rotational elements being connected to a rotary shaft of an engine; a differential device including a plurality of differential rotational elements including one connected to one of the transmission rotational elements of the transmission, one connected to a rotary shaft of a first rotary machine, and one connected to a rotary shaft of a second rotary machine and a driven wheel; a transmission control device configured to control the transmission; and a control device configured to control the first rotary machine such that pinion differential rotation of the transmission or the differential device is set to be not higher than a predetermined value at a time unique motor EV driving is performed only by power of the second rotary machine.

Abstract: A control apparatus for an electrically driven vehicle includes a electronic control unit and a dynamic power transmission mechanism. The electronic control unit is configured to control the dynamic power transmission mechanism to execute a slip control such that the speed of an electric motor is a higher speed than a speed of the electric motor at a time point and speed of a relative rotation in the fluid coupling increases, in a case of determining that the operating state of the electric motor enters the operating state in which the value of the heat load is the predetermined value or greater, the time point being a time point when the operating state of the electric motor enters the operating state in which the value of the heat load is the predetermined value or greater.

Abstract: A control apparatus for a dynamic power transmission apparatus is provided. The dynamic power transmission apparatus includes a differential mechanism, an electric generator, an electric motor, and a fluid coupling. The electric motor is disposed at a position apart from a transmission path along which a dynamic power of an engine is transmitted to a driving wheel. The fluid coupling is disposed between the electric motor and the transmission path. The control apparatus includes an electronic controller configured to restrict a charge of an electric storage apparatus with an electric power generated by the electric generator, depending on a state of the electric storage apparatus, and control the fluid coupling to differentially rotate and to drive the electric motor by the electric power such that a dynamic power loss is generated in the fluid coupling, when restricting the charge of the electric storage apparatus.

Abstract: A vehicle having mounted thereon a differential device including a sun gear, a ring gear and a carrier, a first motor generator coupled to the sun gear, a second motor generator coupled to the ring gear, an automatic transmission provided between the ring gear and a drive wheel, an engine coupled to the carrier, and a brake suppressing the rotation of the carrier. The vehicle has a traveling mode that is selected from a first mode in which traveling is performed by using a torque outputted from the first and second motor generators in a state where the brake is engaged, and a second mode in which the traveling is performed by operating the engine in a state where the brake is disengaged.

Abstract: A hybrid vehicle includes electrical storage devices, a charging device, a motor generator, a diode, an outlet and a relay. The first electrical storage device stores driving electric power. The charging device charges the first electrical storage device with the user of a power supply outside the vehicle. The motor generator has a power generation function. The second electrical storage device stores electric power that is generated by the motor generator. When electric power is output to a device outside the vehicle from the outlet, the relay limits electric power, which is output from the first electrical storage device, such that electric power stored in the second electrical storage device is output.

Abstract: A control device of a vehicle includes a first electric motor; a differential mechanism having a rotating element coupled to the first electric motor, a rotating element that is an output rotating member coupled to drive wheels in a power transmittable manner, and a rotating element coupled to a non-rotating member by actuation of a lock mechanism; and a second electric motor coupled to the drive wheels in a power transmittable manner. During motor running for running with output torques from the first electric motor and the second electric motor used together in an actuated state of the lock mechanism, a drive torque shared by the first electric motor is made smaller in a requested drive torque when a rotation speed of a pinion making up the differential mechanism is higher.

Abstract: A vehicle control device is configured to select a single motor running, a multiple motor running and an engine running, such that a level of a charging capacity of an electric storage device in which the multiple motor running is selectable is higher than a level of the charging capacity in which the single motor running is selectable. During the single motor running performed with the charging capacity being equal to or greater than a first threshold value, the control device is configured, upon increase of the drive force requested by a driver of the vehicle, to select the multiple motor running when the charging capacity is equal to or greater than a second threshold value that is higher than the first threshold value, and to select the engine running when the charging capacity of the electric storage device is less than the second threshold value.

Abstract: A vehicle control system for reducing shocks resulting from restarting an engine under EV running mode. The vehicle control system is applied to a vehicle including an engagement device that selectively connect the engine with the powertrain, and a motor adapted to generate a drive force and connected with the powertrain. In the vehicle, a first mode is selected to propel the vehicle by the motor while interrupting the torque transmission between the engine and the powertrain and stopping the engine, and a second mode is selected to propel the vehicle by the motor while allowing the torque transmission between the engine and the powertrain and stopping the engine. The vehicle control system selects the second mode if a control response of at least any of the engagement device and the motor is estimated to be out of a predetermine range when the vehicle is running while stopping the engine.