A stationary part for an inductive power transfer pad that, in an embodiment, comprises: an electronic section including an electronic housing; a receiving section for a movable part of the inductive power transfer pad; a cooling channel predominantly or solely running through the receiving section and having a first end and a second end both being connected to an interior of the electronic housing; a first fan placed within the cooling channel or at the first or second end, or beneath the first or second end of the cooling channel, wherein, when the fan is operating, air from the interior of the electronic housing can be transported through the cooling channel, heat can be transferred from the air to a structural member of the receiving section so that the air cools down, and cooled-down air can be transported back to the interior of the housing.

A method for pairing a wireless power receiver to a wireless power transmitter, the wireless power receiver being configured to charge a battery of a vehicle. The method includes accessing, identification information associated with a communication channel corresponding to a designated wireless power transmitter of a plurality of wireless power transmitters, establishing, by the wireless power receiver, a wireless connection with the designated wireless power transmitter, based on the identification information associated with the communication channel, receiving, by the wireless power receiver over the wireless connection, alignment information from the designated wireless power transmitter, detecting that the vehicle has parked proximate to the designated wireless power transmitter according to the alignment information, and verifying that the wireless power receiver is authorized to receive power from the designated wireless power transmitter to charge the battery of the vehicle.

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

A vehicle battery charger and a vehicle battery charging system are described and illustrated, and can include a controller enabling a user to enter a time of day at which the vehicle battery charger or system begins and/or ends charging of the vehicle battery. The vehicle battery charger can be separate from the vehicle, can be at least partially integrated into the vehicle, can include a transmitter and/or a receiver capable of communication with a controller that is remote from the vehicle and vehicle charger, and can be controlled by a user or another party (e.g., a power utility) to control battery charging based upon a time of day, cost of power, or other factors.

A vehicle connection device of a vehicle battery charging system has a vehicle contact unit including a base with a contacting area in which at least one first contact electrode, at least one second contact electrode and at least one third contact electrode are provided. The vehicle connection device is moveable towards the ground contact unit in a contact direction (R.sub.K) and an aligning actuator of the vehicle connection device is connected to the base in such a way that it can rotate the base about an axis of rotation that runs substantially in the contact direction (R.sub.K). Moreover, a ground contact unit, an automatic vehicle coupling system as well as a method for automatically, conductively connecting a vehicle contact unit to a ground contact unit.

A method for measuring a position, is performed by a vehicle assembly (VA) for alignment between a ground assembly (GA) and the VA. The method includes transmitting low frequency (LF) signals to initiate alignment with the GA and estimating a position of a vehicle using at least one sensor mounted on the vehicle. Information regarding the estimated position of the vehicle is provided to the GA and information regarding a position of the vehicle measured by LF receive antennas of the GA and an acceleration flag calculated by the GA is received. Accordingly, a transmission strength of the LF signals transmitted by the VA is adjusted based on the information regarding the position of the vehicle measured by the LF receive antennas and the acceleration flag.

The invention relates to a device allowing the charging, without manual intervention, of any type of vehicle by induction with optimum efficiency and allowing invisible integration in any location, even classified sites, since there are no visible points. It consists, for the portion supplying the power, of a power supply cable to the electrical grid (9), of a retractable point (8) including a mechanism for raising and lowering and the primary windings (6), of an electronic box (7), of a receiver (2), of an electronic box (5) integrated beneath the floor pan of the vehicle and either retrofitted or already integrated by the manufacturers, and of a power supply cable (4) connected to the batteries (3). This retractable point (8) will be managed by a mobile application, which is mandatory in or integrated into the vehicle. The device according to the invention is intended in particular to facilitate the charging of electric vehicles by increasing the number of induction charging points, by equipping parking places in rest areas on roads and highways, public or private parking lots, and in parking places in public or private locations. The device according to the invention is compatible with DC or AC charging. The device according to the invention is also intended to automatically charge, without human intervention, any electric vehicle, any self-driving vehicle including two-wheeled vehicles and robot automatic delivery systems.

The invention relates to a device allowing the charging, without manual intervention, of any type of vehicle by induction with optimum efficiency and allowing invisible integration in any location, even classified sites, since there are no visible points. It consists, for the portion supplying the power, of a power supply cable to the electrical grid (9), of a retractable point (8) including a mechanism for raising and lowering and the primary windings (6), of an electronic box (7), of a receiver (2), of an electronic box (5) integrated beneath the floor pan of the vehicle and either retrofitted or already integrated by the manufacturers, and of a power supply cable (4) connected to the batteries (3). This retractable point (8) will be managed by a mobile application, which is mandatory in or integrated into the vehicle. The device according to the invention is intended in particular to facilitate the charging of electric vehicles by increasing the number of induction charging points, by equipping parking places in rest areas on roads and highways, public or private parking lots, and in parking places in public or private locations. The device according to the invention is compatible with DC or AC charging. The device according to the invention is also intended to automatically charge, without human intervention, any electric vehicle, any self-driving vehicle including two-wheeled vehicles and robot automatic delivery systems.

An apparatus and method of determining relative position of a ground coil and a vehicle coil, enabling an electric vehicle to be guided to a position at which energy is transferable between the ground and vehicle coils. Position signaling devices are mountable relative to the ground and vehicle coils. At least one signaling device is associated with one of the coils and two or more signaling devices are associated with the other of the coils. Each signaling device is able to transmit or receive, or transmit and receive positioning signals for or from other ones of the signaling devices. The positioning signals are processed to obtain time-related information. The time-related information is obtained using at least two positioning protocols from a set of protocols. This enables determination of distances between the signaling devices and thus the relative position of the ground and vehicle coils.

An apparatus and method of determining relative position of a ground coil and a vehicle coil, enabling an electric vehicle to be guided to a position at which energy is transferable between the ground and vehicle coils. Position signaling devices are mountable relative to the ground and vehicle coils. At least one signaling device is associated with one of the coils and two or more signaling devices are associated with the other of the coils. Each signaling device is able to transmit or receive, or transmit and receive positioning signals for or from other ones of the signaling devices. The positioning signals are processed to obtain time-related information. The time-related information is obtained using at least two positioning protocols from a set of protocols. This enables determination of distances between the signaling devices and thus the relative position of the ground and vehicle coils.