Abstract: A hybrid drive apparatus that includes an input shaft that is connected to an engine; an output shaft that is connected to wheels; a first rotary electric machine; a second rotary electric machine; a first planetary gear apparatus that has at least three rotating elements; a second planetary gear apparatus that has at least three rotating elements; and a plurality of friction engagement elements that selectively connect one rotating element of the first planetary gear apparatus and the second planetary gear apparatus to other rotating elements or that selectively hold the rotating element stationary on a non-rotating member.

Abstract: A hybrid drive apparatus includes an engine; an input shaft that is connected to the engine; an output shaft that is connected to wheels; a rotary electric machine; a first planetary gear apparatus; and a second planetary gear apparatus. In an electric torque converter mode, the first planetary gear apparatus reduces an absolute value of a rotational speed of the rotary electric machine and transfers a first resulting rotational speed to the second planetary gear apparatus, and the second planetary gear apparatus combines the first resulting rotational speed and a rotation of the input shaft, reduces an absolute value of a rotational speed of the input shaft, and transmits a second resulting rotational speed to the output shaft.

Abstract: An electric vehicle drive control device includes a first electric motor and a second electric motor that are mechanically connected with an engine; a differential device that includes first, second and third rotational elements, wherein the first rotational element is connected with the first electric motor, the second rotational element is connected with the second electric motor, and the third rotational elements is connected with the engine; a transmission that is connected with the second electric motor via a transmission shaft, and that shifts a speed of a rotation transferred from the transmission shaft; and a controller that: judges whether an engine start request for starting the engine is generated and whether a downshift request is generated; and executes, if the engine start request and the downshift request are generated, a control among an engine start control and a downshift control during which the other of the engine start control and the downshift control is started.

Abstract: An electric vehicle drive control device that includes a first electric motor; a second electric motor; a differential device that includes first, second, and third rotational elements, wherein the first rotational element is connected to the first electric motor, the second rotational element is connected to the second electric motor via a transmission shaft, and the third rotational element is connected to an engine; a transmission for shifting that shifts a speed of a rotation transferred to from the transmission shaft; and a controller that: controls electric motor control processing means for controlling a rotation speed of the first electric motor in conjunction with shifting performed by the transmission; and adjusts electric power adjustment processing means for adjusting an electric power consumptions generated in the first and second electric motors, by controlling an output supplied to the second electric motor in conjunction with the control of the rotation speed of the first electric motor.

Abstract: A hybrid drive apparatus including an input shaft; a first motor and a second motor; a power distributing planetary gear; an intermediate transmission shaft; and a partition wall provided between a motor part including the first motor and the second motor and a transmission part including the transmission such that the intermediate shaft passes through the partition wall.

Abstract: An electric vehicle drive control device includes a first electric motor; a second electric motor; a differential device that includes first, second, and third rotational elements, wherein the first rotational element is connected to the first electric motor, the second rotational element is connected to the second electric motor via a transmission shaft, and the third rotational element is connected to an engine; a transmission that shifts a speed of a rotation transferred from the transmission shaft; and a controller that: calculates an inertia compensating torque that compensates for a change in a rotation speed caused by inertia while the transmission performs shifting; and corrects a target torque for the first electric motor in accordance with the inertia compensating torque.

Abstract: A hybrid drive unit including two electric motors is provided which is capable of providing continuously variable transmission, and prevents deterioration in energy recovery efficiency, without causing deterioration in power transmission efficiency in a high-vehicle speed and low-driving force range. In order to achieve shifting through a planetary gear unit and three friction engagement elements, first and third power transmission states are formed such that an input shaft is connected to a first rotating element of the planetary gear unit, a first electric motor is connected to a second rotating element, and an output shaft and a second electric motor are connected to a third rotating element, and a second power transmission state is formed such that the input shaft, the output shaft, the first electric motor and the second electric motor are independently connected to four rotating elements of the planetary gear unit.