Honda Motor Co., Ltd.

Yusaku Amari

Tomoaki Nakagawa

Atsushi Hirosawa

Takayuki Kato

Hiroyuki Abe

Junya Noguchi

Shinji Takuno

Shinichi Yokoyama

Shigeru Tajima

Keiichiro Homma

A control device that controls charging/discharging of a secondary battery mounted on a vehicle includes: a detection unit configured to detect start of deriving of a deterioration state of the secondary battery; and a control unit configured to control charging/discharging of the secondary battery such that a charging rate of the secondary battery is equal to or higher than a first predetermined value and equal to or lower than a second predetermined value in a state in which the vehicle is parked and is connected to an external power supply in a case in which start of deriving of the deterioration state has been detected by the detection unit.

Control device, diagnosis system, control method, and program

A management apparatus manages electric power transfer between a power system and a secondary battery mounted in a vehicle and storing electric power for traveling. The management apparatus includes a storage configured to store an upper limit number of rotations of a rotating machine included in the vehicle, and a controller configured to acquire an integrated number of rotations of the rotating machine that is measured from a start time of a warranty period of the vehicle and to limit electric power transfer between the power system and the secondary battery when the integrated number of rotations is equal to or greater than the upper limit number of rotations.

Management apparatus, management method, and program

An information processing apparatus includes an acquirer that is configured to acquire information regarding charging and discharging of a traveling battery provided in a vehicle with respect to an electric power system, and a communication controller that is configured to cause a communicator mounted on the vehicle to transmit the information acquired by the acquirer to a server apparatus in a case where a predefined condition associated with the type of the information is satisfied.

Information processing apparatus and method for bidirectional transmission of electric power between electric vehicle and power system

Provided is a charge and discharge management device for managing charging and discharging of an energy storage device in a vehicle, the vehicle including: the energy storage device configured to perform electric power transfer with an external power grid; and an electric device configured to adjust an electric power to be charged and discharged by the energy storage device, and configured to travel by power supply from the energy storage device, wherein the charge and discharge management device is configured to charge the energy storage device, by the electric power transfer with the external power grid, for increasing a remaining capacity of the energy storage device to a predetermined level when a conduction integration time of the electric device measured from a start point of a warranty period of the vehicle is equal to or longer than a first predetermined time.

Charge and discharge management device

A power reception apparatus includes a secondary coil which receives electric power in a non-contact manner from a primary coil which is provided on a plane defined by a front-rear direction and a left-right direction which are at right angles to each other, a drive part which can change a relative position on the plane of the secondary coil relative to the primary coil, a display unit, and a processing unit for processing an image to be displayed on the display unit. The processing unit calculates a relative position and a gradient of the secondary coil relative to the primary coil based on a coupling coefficient between the primary coil and the secondary coil, and a change with time in the coupling coefficient.

Power reception apparatus, vehicle, power transmission apparatus, power transmission and reception system, and control method

A power reception apparatus includes a secondary coil which receives electric power in a non-contact manner from a primary coil which is disposed on a plane defined by a front-rear direction and a left-right direction which are at right angles to each other, a drive part which can change a relative position on the plane of the secondary coil relative to the primary coil, a display unit, and a processing unit for processing an image to be displayed on the display unit. The processing unit displays the relative position and the gradient of the secondary coil on the display unit. A display mode which is used when the secondary coil is not included in the target zone in relation to the left-right direction is different from a display mode which is used when the secondary coil is included in the target zone in relation to the left-right direction.

An electric vehicle includes a charging circuit and a control device. The control device is configured to set a charging current value by increasing the charging current value over time while a voltage of a battery of the charging circuit increases so that a load resistance value of the charging circuit is constant in a constant-resistance charging mode, at the time of continuing charging of the battery. The control device is configured to initiate the constant-resistance charging mode based on a determination by the control device that an SOC of the battery or the voltage of the battery is at or above a predetermined threshold value, or based on an input from a user. The control device is configured to initiate a constant-power control charging mode in which charging power of the charging circuit is constant.

Electric vehicle

A power reception apparatus includes a secondary coil which receives electric power in a non-contact manner from a primary coil which is disposed on a plane defined by a front-rear direction and a left-right direction which are at right angles to each other, a drive part which can change a relative position on the plane of the secondary coil relative to the primary coil, a display unit, and a processing unit for processing an image to be displayed on the display unit. In an event that the secondary coil is included in the target zone in relation to the left-right direction, the processing unit displays the relative position and the gradient of the secondary coil on the display unit, and changes display modes of displaying the relative position on the display unit according to a change in the relative position in the front-rear direction.

Power transmission and reception system for vehicle with graphical alignment

An electric vehicle includes a charging circuit and a control apparatus. The charging circuit includes a reception coil and a battery. The reception coil is configured to receive wirelessly AC power transmitted from an electrical transmission circuit outside of the electric vehicle. The battery is configured to be charged with power obtained by rectifying the AC power received by the reception coil. The control apparatus includes a battery voltage detector and a charging current value setting device. The charging current value setting device is configured to set a charging current value at which the battery is charged in accordance with voltage of the battery detected by the battery voltage detector. The charging current value is set so that a load resistance value of the charging circuit is constant in a period during which the battery is being charged.

A power reception apparatus includes a power reception coil, a relative distance detection section, a power transmission efficiency detection section, a database, a power transmission frequency setting section, and a power transmission request section. The power transmission frequency setting section is configured to read from the database a resonance frequency corresponding to a combination of a relative distance and an initial transmission efficiency and to set the read resonance frequency as a power transmitting frequency. The power transmission request section is configured to notify the power transmission apparatus of the power transmission frequency set by the power transmission frequency setting section to request wireless power transmission with the power transmission frequency.

Power reception apparatus and wireless power transmission method

A drive over estimating unit of an electric vehicle estimates whether or not wheels of the vehicle will drive over a power supplying coil, e.g., power supplying pad, from a stopped position estimation value, e.g., a deviation amount in a direction of positional shifting of the electric vehicle with respect to the power supplying pad, and a steering angle (&#x2212;&#x3b8; (left) or +&#x3b8; (right)) when the vehicle starts to move after non-contact charging thereof is completed. A notification unit issues a notification when it is estimated that the wheels of the electric vehicle will drive over the power supplying coil, e.g., power supplying pad.

Vehicle

A power receiving body and a vehicle including the power receiving body are provided, in which an object detection range, which corresponds to a non-contact charging condition between a power supplying coil and a power receiving coil, is set, together with variably setting the object detection range corresponding to a leakage magnetic field area.

Power receiving body and vehicle equipped with power receiving body

A non-contact charging apparatus includes a power-feeding coil, a power-receiving coil, a relative-position detector, and a feeding-power changing device. The power-receiving coil is configured to receive power from the power-feeding coil in a non-contact manner to charge a battery. The relative-position detector is configured to detect a distance between a center of the power-feeding coil and a center of the power-receiving coil. The feeding-power changing device is configured to decrease the power from the power-feeding coil to the power-receiving coil as the distance increases.

Non-contact charging apparatus and method for charging battery

A vehicle running management system under renewable energy includes an electrically driven vehicle having a battery ECU. The battery ECU manages a remaining amount of renewable energy in a vehicle-mounted electric storage device as it increases and decreases when renewable energy is charged into the vehicle-mounted electric storage device and renewable energy is discharged from the vehicle-mounted electric storage device.

Vehicle running management system under renewable energy

A vehicle-mounted electric storage device of an electrically driven vehicle is charged with a necessary amount of energy, which corresponds to an amount of energy consumption in a next-time running of the electrically driven vehicle, such that a shortage of renewable energy at a charging site is compensated for by charging the electrically driven vehicle with system energy.

Growing community of inventors

Wako, Japan

Yusaku Amari