A hybrid power driving system includes an engine, a planetary gear device, a first motor, a clutch gear device, a brake device, an engagement device, an intermediate shaft, and a second motor, the engine and the first motor are connected by the planetary gear device which includes first, second and third rotating elements; the clutch gear device is disposed between the first motor and the planetary gear device, the clutch gear device includes a clutch and a clutch gear and an engagement element connected to the clutch, the clutch gear is connected to the intermediate shaft; the engagement device is configured to engage the third rotating element and the engagement element, or engage the third rotating element and the brake device, or only engage the third rotating element; the brake device is configured to brake or unlock the third rotating element; the second motor is connected to the intermediate shaft.

A control device includes a torque setting section for setting a target output torque of an electric motor based on a driving state including an accelerator operation amount; a non-transmission state determiner section for determining whether a driving power transmission path is in a non-transmission state in which driving power is not permitted to be transmitted from the electric motor to a drive wheel or in a transmission state in which the driving power is permitted; and a torque compensation section for compensating the target output torque, when the non-transmission state determiner section determines that the driving power transmission path is in the non-transmission state. The torque compensation section compensates the target output torque by using a slowness characteristic in which a change in the motor rotational speed which occurs with time is slower when in the non-transmission state than when in the transmission state.

An electric motorcycle includes a driving command detecting device, a state value detecting device, an electric motor driving a drive wheel, a control unit for executing a non-normal mode causing output of the electric motor in a non-normal mode to differ from the output of the electric motor in a normal mode, the control unit configured to shift the electric motorcycle from one of the normal or non-normal modes to the other normal or non-normal mode, when the state value satisfies a predetermined shift condition, in one of the normal and non-normal modes, and a cornering determiner unit for determining cornering status, wherein the control unit causes a change in the output of the electric motor to be less, when the electric motorcycle is cornering and the shift condition is satisfied than when the cornering determiner unit determines the electric motorcycle is not cornering and the shift condition is satisfied.

In a vehicle, a first rotating electrical machine, is connected to first wheels via a clutch, and second rotating electrical machines are connected to second wheels or the first wheels without going through the clutch. A power control device allocates electric power to the second rotating electrical machines with higher priority over the first rotating electrical machine when adding additional power to power of an internal combustion engine, thereby generating power of the second rotating electrical machines with higher priority over power of the first rotating electrical machine.

There is provided a cooling structure whose performance for cooling ring members and brushes is enhanced. In a cooling structure applied to a slip ring device including ring members provided to an input shaft and brushes contacting with these ring members, the input shaft includes a shaft member where an external spline portion is formed, and a cylindrical member that is installed over the external circumference of the shaft member so that an internal spline portion formed on the cylindrical member is meshed with the external spline portion, and that the ring members are fixed to the cylindrical member. The internal spline portion is formed upon a portion of the inner circumferential surface of the cylindrical member that lies on the radially inward side of the ring members.

An axle assembly for an electric or hybrid vehicle includes electrically powered drive motors for respectively driving vehicle wheels. The axle assembly preferably includes a dual motor arrangement, wherein two electric motors are arranged end-to-end. Each motor includes an inverter that is directly connected to its respective motor, and includes a gearbox assembly coupled between an output of the motor and a corresponding constant-velocity (CV) joint operatively connected to a wheel. The inboard ends of the motors are secured to opposite faces of a cooling manifold wherein the cooling manifold maintains the motors in axial alignment. The cooling manifold plate is positioned between an inboard end of each of the motor housings, and the cooling manifold plate axially aligns the first and second motors. Further, each motor drives its respective gearbox assembly, which includes a gear reduction and clutch mechanism having a brake band assembly that is selectively operable to disconnect the respective motor from the vehicle wheel associated therewith.

There is provided a configuration, including a storage unit that stores a theoretical driving wheel rotating speed based on a correspondence relationship with a predetermined engine speed in each gear stage of a transmission of a vehicle; gear stage detection means for detecting the gear stage when currently travelling; engine speed detection means for detecting an engine speed; driving wheel rotating speed detection means for detecting a driving wheel rotating speed; and torque control means for controlling output torque, in which the output torque is increased so that a current driving wheel rotating speed becomes close to the theoretical driving wheel rotating speed when a relative value of a calculated value which is calculated by using the detected driving wheel rotating speed with respect to a calculated value which is calculated by using the theoretical driving wheel rotating speed is equal to or greater than a first threshold value.

A power controller of a hybrid vehicle includes: a first drive motor that drives any one of a front wheel and a rear wheel of a vehicle; an engine that drives the one wheel or the corresponding other one of the front wheel and the rear wheel of the vehicle through a clutch; a generator that is driven by the engine; and a voltage transformer that steps down generated electric power supplied to the first drive motor and a battery from the generator. The power controller limits passing power of the voltage transformer according to the temperature of the voltage transformer, and connects the clutch when the passing power of the voltage transformer is limited.

In a hybrid vehicle including: a step-up converter for stepping-up the voltage from a battery and supplying power to the front motor for driving front wheels; as well as a paddle switch for setting regenerative braking torque stepwisely, and a hybrid control unit for calculating a regenerative braking force based on a selection stage set by the paddle switch, the hybrid control unit decreases the regenerative braking force to be less than the regenerative braking force while the maximum input/output power of the step-up converter is not limited, when a selection stage in which regenerative braking force is more than that in a D range is selected while the maximum input/output power of the step-up converter is limited.

A power supply system includes a first energy storage, a second energy storage, a power transmission circuit, and circuitry. An electrical load is connected to the first energy storage and to the second energy storage via the power transmission circuit. The circuitry is configured to control the power transmission circuit such that the first energy storage charges the second energy storage and supplies electric power to the electrical load according to a demand of the electrical load when a charge rate in the second energy storage is lower than or equal to a first threshold. The circuitry is configured to control the power transmission circuit such that at least the first energy storage among the first energy storage and the second energy storage supplies electric power to the electrical load according to the demand when the charge rate is higher than the first threshold.