Toyota Jidosha Kabushiki Kaisha

Ryosuke Ikemura

Shogo Tsuge

Toshiya Hashimoto

Masato Maemura

Yuki Takahashi

Takahiro Hirano

Masaki Ito

Kunihiko Usui

Akio Sugawara

Keisuke Ushida

Yohei Arino

Naoto Kato

Takayoshi Kawai

Hiroshi Watanabe

Yasuhiro Kuze

Hiromasa Hashimoto

Teppei Yoshioka

A control apparatus for a power receiver which wirelessly receives electric power from a power transmitter. The control apparatus being configured to execute a restriction process that restricts received power by PWM control depending on an amount of the received power. The restriction process comprises calculating an increase gap which is a difference between an initial received power and a local maximum value of the received power with respect to a change in a duty in the PWM control, starting the PWM control when a first value which is a value obtained by adding the increase gap to a current received power exceeds a second value which is a value obtained by subtracting a predetermined margin from an upper limit of the received power, and increasing the duty until the received power becomes lower than the initial received power when starting the PWM control.

Control apparatus, control method, and non-transitory computer readable recording medium

A vehicle for receiving power by noncontact from a power transmission apparatus of a ground power supplying apparatus, has: a power reception apparatus for receiving power from the power transmission apparatus; a vehicle side communication device for transmitting a signal including identification information of the vehicle to the ground power supplying apparatus by short range wireless communication; a lateral deviation detection device for detecting a deviation in a relative position of the power reception apparatus with respect to the power transmission apparatus; and a vehicle side control device for controlling the vehicle side communication device. The vehicle side control device controls the vehicle side communication device so that power is not transmitted from the ground power supplying apparatus when the deviation is detected.

Vehicle and noncontact power supplying system with vehicle signal emission control

A wireless power transfer system wirelessly transfers power from a supply device to a vehicle, the supply device including a primary device that transfers power and being provided on a road, the vehicle being equipped with a power reception device that includes a secondary device and traveling on the road by the power received from the supply device. Further, the supply device further includes: a processor, and the processor: acquires vehicle speed information indicating at least a speed of the vehicle; and sets a time for confirming magnetic coupling between the primary device and the secondary device based on the vehicle speed information.

Wireless power transfer system

The wireless power transmission system according to the present disclosure includes: a supply device installed on the road side and transmitting electric power; a vehicle equipped with a power receiving device and traveling on the road; wherein in the wireless power transmission system, a power receiving device receives power from a supply device and wirelessly transmits the power to a vehicle, the supply device is a primary coil that generates a magnetic field for transmitting power to the vehicle; a first communication device that performs short-range wireless communication with the vehicle; the vehicle includes a secondary coil that receives power transmitted contactlessly from the primary coil; a second communication device that performs short-range wireless communication with the supply device; in the first and second communication devices, one communication device has a single communication unit, and the other communication device has a plurality of communication units.

Wireless power transmission system

The power supply management device includes a communicating module for receiving power supply information relating to noncontact power supply from at least one of a vehicle and a ground power supplying apparatus when noncontact power supply between the vehicle and the ground power supplying apparatus ends, and a processor configured to judge that an abnormality relating to upload of the power supply information has occurred if the communicating module has not received the power supply information within a predetermined time period regardless of noncontact power supply having been scheduled.

Power supply management device and abnormality judgment method

The control device includes a processor that is configured to, in a wireless power transmission system that transmits, in a noncontact manner, power from a primary coil included in a supply facility to a secondary coil included in a vehicle that is traveling, output information for changing a traveling position in a width direction of the vehicle, and correct the traveling position in the width direction according to a change in the power transmission state when changing the traveling position in the width direction.

Control device and wireless power transmission system

A ground power supplying apparatus provided with a power transmission apparatus having a resonance circuit and transmitting power to the vehicle and a control device shifting a state of the ground power supplying apparatus to a standby state when a predetermined suspension condition stands if the state of the ground power supplying apparatus is a main power transmission state or a power transmission active state and shifting a state of the ground power supplying apparatus to the power transmission active state when the suspension condition no longer stands if the state of the ground power supplying apparatus is the standby state.

Ground power supplying apparatus, method for controlling ground power supplying apparatus, and nontransitory computer recording medium

A vehicle enabling confirmation of an end of power transfer from a ground power supplying apparatus at the vehicle side, that is, a vehicle receiving power from a ground power supplying apparatus by noncontact, provided with a power reception apparatus for receiving power from the ground power supplying apparatus and a control device configured to judge an end of power transfer from the ground power supplying apparatus based on a change along with time of received power received by the power reception apparatus.

Vehicle, method of control of power reception of vehicle, and nontransitory computer recording medium

The ground power supplying apparatus includes a communication device for directly communicating with the vehicle by short range wireless communication with a communication distance of less than 10 meters, and a controller configured to control power transmission by the ground power supplying apparatus. If the communication device receives vehicle identification information from a second vehicle during supply of power from the ground supplying apparatus to a first vehicle, the controller is configured to stop supply of power to the first vehicle when the communication device receives the vehicle identification information from the second vehicle.

Ground power supplying apparatus and power supply method

A power receiving device includes: a power receiving coil receiving power transmitted from a power transmission coil; a rectifier circuit between the power receiving coil and a load; a smoothing capacitor between the rectifier circuit and the load; and a control device executing a short-circuit mode of short-circuiting between output ends of the power receiving coil. Further, the control device includes an acquisition unit acquiring information indicating a drive frequency of an inverter in the power transmission device, a setting unit setting a switching frequency of the rectifier circuit to a value different from the drive frequency of the inverter, and a control unit executing the short-circuit mode based on the switching frequency set by the setting unit.

Power receiving device and contactless power transmission system

A control device for power feeding during traveling includes a processor. Further, when a living object or a metal foreign object is detected around a primary coil of a power transfer device that transfers power to a power reception device of a vehicle that is traveling, the processor deletes identification information on the primary coil registered in an identification information list of the primary coil, and when the living object or the metal foreign object is not detected, the processor performs compatibility check and service authentication between the power reception device of the vehicle and the power transfer device.

Control device for power feeding during traveling

A processor obtains power reception information including information on a power reception form of a power reception apparatus of each of a plurality of vehicles. The processor obtains power transmission information including information on a power transmission form of a power transmission apparatus available on a travel path through which each of the plurality of vehicles can travel. The processor selects as a vehicle to be dispatched from among the plurality of vehicles, a vehicle that can receive electric power from the power transmission apparatus on the travel path, based on the power reception information and the power transmission information.

Vehicle allocation apparatus and vehicle allocation method

A server includes a communication device and a processor. From a user terminal, the communication device acquires a vehicle dispatch request including information indicating a vehicle dispatch location and a destination of a vehicle. When the communication device acquires the vehicle dispatch request, the processor determines a traveling route of the vehicle from a current location of the vehicle to the destination via the vehicle dispatch location in accordance with the vehicle dispatch request. The processor determines a route from the current location to the vehicle dispatch location such that an amount of power storage in a power storage device at the vehicle dispatch location is larger than an amount of electric power with which the vehicle can travel from the vehicle dispatch location to the destination.

Route determination device and vehicle dispatch system

A power reception device includes: a power reception coil that receives power transmitted from a power transmission coil in a non-contact manner; and a control device that executes a short-circuit mode in which a plurality of switching elements provided between the power reception coil and a load are caused to perform switching operations to short-circuit between output terminals of the power reception coil. Further, when a phase of a current and a phase of a voltage in the power reception device are deviated from each other, the control device sets switching timings of the switching elements to the short-circuit mode in a manner that the phase of the voltage is shifted in a direction in which a power factor of power supplied to the load is deteriorated.

Power reception device and non-contact power transmission system

The vehicle includes a first communication device for directly or indirectly communicating with the ground power supplying apparatus by wide area wireless communication with a communication distance of greater than or equal to 10 meters, and an electronic control unit. The electronic control unit is configured to request the ground power supplying apparatus cancel supply of power to the vehicle by the wide area wireless communication when a predetermined condition is satisfied.

Growing community of inventors

Susono, Japan

Ryosuke Ikemura