Abstract: An electric vehicle comprises a driving motor which generates heat during an operation of the driving motor; a driving power transmission mechanism which transmits driving power of the driving motor to a rear wheel (drive wheel); an oil pan (first reservoir section) which is placed below the driving motor and reserves oil (coolant) therein; an oil reservoir (second reservoir section) which is placed above the driving motor and reserves the oil (coolant) therein; a fluid passage which causes the oil pan and the oil reservoir to be in communication with each other; and a pump which supplies the oil (coolant) from the oil pan to the oil reservoir through the fluid passage, and the oil reservoir includes a first drop hole through which the oil (coolant) is dropped toward the driving motor by a gravitational force.

Abstract: An electric vehicle includes a switching unit which is capable of performing switching between a permission state in which an electric motor is permitted to operate and an inhibiting state in which the electric motor is inhibited from operating. An assembling management system of the electric vehicle includes an information obtaining section which obtains set information set in a vehicle body or a battery and transmits the obtained set information to a determiner section which determines whether or not the electric motor is permitted to operate based on the set information, and an output section which receives a result of determination from the determiner section, and outputs an electric signal indicating which of a permission state and an inhibiting state should be set in the switching unit.

Abstract: A control section is configured to perform a high-degree abnormal state control in which the control section terminates a specified shifting step for shifting a vehicle to an operable state and shifts the vehicle to an operation inhibiting state when an operation checking section determines that the vehicle is in a predetermined high-degree abnormal state, and the control section is configured to perform a low-degree abnormal state control different from a normal state control without terminating the specified shifting step, when the operation checking section determines that the vehicle is in a predetermined low-degree abnormal state different from the predetermined high-degree abnormal state, and perform the normal state control, when the operation checking section determines that the vehicle has been restored from the predetermined low-degree abnormal state to a state in which the vehicle is operable normally.

Abstract: A vehicle controller calculates a lateral slip amount indicating a degree to which a target wheel to be controlled which is a front wheel or a rear wheel of a vehicle is slipping in a rightward and leftward direction on a ground surface; performs a lateral slip suppressing control including at least one of a control for reducing an absolute value of a command value of a longitudinal force in a forward and rearward direction which is applied from the ground surface to the target wheel and a control for increasing a distributed load applied to the target wheel, in a case where it is determined that the lateral slip amount is greater than a lateral slip limit threshold; and decides the lateral slip limit threshold based on at least one of the longitudinal force and a normal force applied to the target wheel.

Abstract: A vehicle comprises an engine including a plurality of combustion chambers; a plurality of throttle valves provided in the plurality of combustion chambers corresponding to the plurality of combustion chambers, respectively, to independently adjust flow rates of intake air flowing into the combustion chambers, respectively; two or more driving mechanisms for electrically driving the plurality of throttle valves divided into two or more groups in such a manner that each of the driving mechanisms drives the throttle valve in a corresponding group of the groups; and a throttle control device for controlling the driving mechanisms based on an amount of throttle operation information input by a rider and a predetermined vehicle state, wherein the throttle control device provides throttle opening rate commands which are made different between the groups, to the driving mechanisms, respectively, when a predetermined output adjustment condition is met.

Abstract: A personal watercraft comprises a body; a driving power source mounted in the body; a water jet pump driven by the driving power source to eject a water jet in a rearward direction; a handle bar gripped by a rider; a rider operation member provided on the handle bar, the rider operation member being operated by the rider to be movable to an acceleration position for providing a forward movement command, a deceleration position for providing a rearward movement command, and a neutral position for providing an idling command, the neutral position being set to a position between the acceleration position and the deceleration position in a movement path of the rider operation member; and a control unit which controls the driving power source in response to the rider's operation for moving the rider operation member.

Abstract: An air-intake device comprises a vehicle body frame including a head box; and a pair of right and left main frames, wherein the head box includes: a casing section which extends between a front opening and a rear opening of the head box and is formed with a main air passage; and a pair of right and left extending sections coupled to the pair of main frames, respectively, wherein at least one extending section is provided with a branch air passage which branches from the main air passage, and wherein a separating wall is provided between the main air passage and the branch air passage and has a communication hole, and wherein when a vehicle body is viewed from a side, at least one extending section is extended rearward to a location at which at least a front region of the communication hole is covered by the extending section.

Abstract: A saddle-riding electric vehicle includes a battery pack mounted to a vehicle body. The vehicle body can run in a state where the battery pack is removed from the vehicle body. The battery pack includes: a casing; removably mounted to the vehicle body; a battery accommodated in the casing; a running-phase power feeding connector provided on the casing and electrically connectable to a vehicle-body-side power feeding connector in a state where the casing is mounted to the vehicle body; an in-storage charging connector provided on the casing, disposed at a position different from that of the running-phase power feeding connector, and electrically connectable to an external power supply; and a battery monitoring unit accommodated in the casing and configured to monitor a state of the battery.

Abstract: An assembling method of an electric vehicle comprises the steps of: assembling a vehicle body including a frame, wheels and an electric motor; conducting a vehicle body test including confirmation of a state of driving power transmission from the electric motor to the wheels by connecting an electric power supply unit installed in a vehicle body test place to the electric motor of the vehicle body and supplying electric power from the electric power supply unit to the electric motor; detaching the electric power supply unit from the electric motor and transporting the vehicle body which has passed the vehicle body test from the vehicle body test place to a mounting place, in a state in which a battery is not mounted to the vehicle body; and mounting the battery to the transported vehicle body in the mounting place.

Abstract: An electric vehicle comprises a cylinder lock including an operation key which is movable by a user's operation between a driving position and a charging position provided at a position different from the driving position and an output unit for outputting information indicative of a position of the operation key; and a main controller permits driving control and inhibits charging control when the operation key is moved to the driving position; and the main controller permits the charging control and inhibits the driving control when the operation key is moved to the charging position.

Abstract: 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.

Abstract: 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.

Abstract: An electric two-wheeled vehicle includes a case, an electric component accommodated in the case and having an electric part producing heat during operation, and a traveling wind guide body for cooling the electric component by traveling wind, and the traveling wind guide body has a traveling wind inlet taking in traveling wind from front, a traveling wind path through which the traveling wind taken in by the traveling wind inlet flows, and a traveling wind outlet ejecting the traveling wind flowing through the traveling wind path toward a radiation fin of the case.

Abstract: An electric vehicle comprises an electric motor for generating driving power for moving a vehicle body of the electric vehicle; a battery unit for supplying electric power to the electric motor; a charging connector connected to an outside electric power supply for supplying the electric power to be charged; a main controller for controlling switching between a first connection state in which the battery unit is connected to the electric motor and a second connection state in which the battery unit is connected to the charging connector; and a relay for opening and closing a power supply path from the low-voltage battery to the main controller; wherein a relay opens the power supply path to cut off electric power supply to the main controller for a specified time, when the relay switches one of the first connection state and the second connection state to the other connection state.

Abstract: A liquid leakage countermeasure of a cooling medium channel is facilitated, and a need of high power of a pump for circulating a cooling medium is relaxed. An electric vehicle includes: a vehicle body including a dashboard which separates a front space covered with a hood and a boarding space provided with a seat on which a driver is seated; an electric component which is provided behind the dashboard and generates heat by electric energy for generating rotational power for vehicle traveling; and a heat exchanger provided behind the dashboard and configured to cool down a cooling medium circulating between the heat exchanger and the electric component.

Abstract: A straddle electric vehicle comprises an electric motor which is a driving power source for activating the vehicle; a high-voltage battery for storing electric power supplied to the electric motor; a low-voltage battery for storing the electric power supplied to an auxiliary machine mounted in the vehicle; a converter for converting a voltage of the electric power supplied from the high-voltage battery to the low-voltage battery into a voltage to be charged into the low-voltage battery; and a case having an insulativity, for storing the high-voltage battery; wherein the low-voltage battery is placed outside the case, and the converter is stored in the case.

Abstract: A straddle electric vehicle comprises a battery case accommodating a battery which is an electric power supply for an electric motor; an inverter which converts DC power stored in the battery into AC power and supplies the AC power to the electric motor; an air passage through which ram air is guided to an interior of a battery case and discharges air from the battery case; and a radiator for cooling a coolant used to cool the inverter using water or oil, wherein the radiator is placed forward relative to an air inlet of the air passage or within the air passage.

Abstract: A regenerative brake control system of an electric motorcycle comprises an electric motor, sensors for detecting vehicle states of the electric motorcycle, and a control unit which sets target regenerative torque based on the vehicle states, when a regeneration condition is satisfied, and performs asymptotic control in such a manner that a torque command provided to the electric motor gets gradually close to the target regenerative torque with a passage of time.

Abstract: An electric vehicle comprises an electric motor which rotates a wheel; a battery which is an electric power supply unit for the electric motor; and a battery accommodating space which is provided in a vehicle body and accommodates the battery therein; wherein the battery accommodating space includes a first accommodating section which stores a standard battery pack including a first battery as the battery, and a second accommodating section which accommodates an optional battery pack including a second battery as the battery such that the optional battery pack is removable from the vehicle body, and wherein a voltage of the first battery is a value corresponding to an activation voltage of the electric motor, and the electric vehicle is capable of driving with an electric power supplied from at least the first battery.

Abstract: A ground speed detection device for a vehicle includes a wheel speed sensor configured to detect a rotational speed of a wheel, a second storage section having stored a radius of the wheel corresponding to a bank angle, and a ground speed calculator configured to calculate a ground speed during cornering. The ground speed calculator extracts the radius of the wheel corresponding to a bank angle detected by a bank angle detection device, from the second storage section, and calculates the ground speed during cornering from the extracted radius of the wheel and the rotational speed of the wheel detected by the wheel speed sensor.