An individualized vehicular charging mat includes a body defining two tire channels terminating at respective channel ends, and a wireless charging element arranged within or on top of the body. The two tire channels include respective entrances at a side edge of the body, and are separated by a track width for a particular vehicle make, model and model year(s). The wireless charging element is arranged at a location where the wireless charging element is configured to optimally charge a vehicle of the particular vehicle make, model and model year(s) when tires of the vehicle come to rest at the channel ends.

An individualized vehicular charging mat includes a body defining two tire channels terminating at respective channel ends, and a wireless charging element arranged within or on top of the body. The two tire channels include respective entrances at a side edge of the body, and are separated by a track width for a particular vehicle make, model and model year(s). The wireless charging element is arranged at a location where the wireless charging element is configured to optimally charge a vehicle of the particular vehicle make, model and model year(s) when tires of the vehicle come to rest at the channel ends.

A transmit end, a receive end, a method, and a system for wireless charging are provided, and are applied to the field of electric vehicles. A transmit-end controller compares an actual output current of an inverter with a preset upper limit value of an output current of the inverter and controls an output voltage of the inverter based on a comparison result to adjust a current of a transmit coil. A receive-end controller receives a sampled value of the current of the transmit coil that is sent by the transmit-end controller and updates a reference value of the current of the transmit coil when a difference between the sampled value of the current of the transmit coil and the reference value of the current of the transmit coil is greater than or equal to a preset value.

A transmit end, a receive end, a method, and a system for wireless charging are provided, and are applied to the field of electric vehicles. A transmit-end controller compares an actual output current of an inverter with a preset upper limit value of an output current of the inverter and controls an output voltage of the inverter based on a comparison result to adjust a current of a transmit coil. A receive-end controller receives a sampled value of the current of the transmit coil that is sent by the transmit-end controller and updates a reference value of the current of the transmit coil when a difference between the sampled value of the current of the transmit coil and the reference value of the current of the transmit coil is greater than or equal to a preset value.

A charging device includes a passive auxiliary circuit and a rectifier which is connected downstream of the auxiliary circuit. The passive auxiliary circuit includes input nodes and output nodes. Between the input node and the output nodes, two impedances are connected. Here, an imaginary component of the first impedance has a positive non-zero value and an imaginary component of the second impedance a negative non-zero value or vice versa.

A charging device includes a passive auxiliary circuit and a rectifier which is connected downstream of the auxiliary circuit. The passive auxiliary circuit includes input nodes and output nodes. Between the input node and the output nodes, two impedances are connected. Here, an imaginary component of the first impedance has a positive non-zero value and an imaginary component of the second impedance a negative non-zero value or vice versa.

The current invention concerns a method for wireless power transfer from a charging station to an energy storage element of an AGV, or on an AGV. Furthermore, it provides a charging station, as well as a wireless energy receiving system for receiving energy from a charging station and providing said received energy to an energy storage element of an AGV, or on an AGV, and furthermore a system for wireless power transfer incorporating one or more charging stations and a plurality of said wireless energy receiving systems.

The current invention concerns a method for wireless power transfer from a charging station to an energy storage element of an AGV, or on an AGV. Furthermore, it provides a charging station, as well as a wireless energy receiving system for receiving energy from a charging station and providing said received energy to an energy storage element of an AGV, or on an AGV, and furthermore a system for wireless power transfer incorporating one or more charging stations and a plurality of said wireless energy receiving systems.

This application discloses a phase alignment circuit and method of a receive end, and a receive end, where the phase alignment circuit and method of a receive end. The receive end is located on the electric vehicle. The circuit includes: a phase measurement circuit and a controller. The controller is configured to: use, as an actual phase shift angle, a result obtained by subtracting the phase difference from a preset phase shift angle, and control a phase of a bridge arm voltage of the rectifier to lag behind the phase of the input current fundamental component by the actual phase shift angle. The controller outputs a drive signal for a controllable switching transistor of the rectifier by using the actual phase shift angle. Because a lagging phase caused due to filtering is compensated for, precision of synchronization between the bridge arm voltage and the input current can be increased.

This application discloses a phase alignment circuit and method of a receive end, and a receive end, where the phase alignment circuit and method of a receive end. The receive end is located on the electric vehicle. The circuit includes: a phase measurement circuit and a controller. The controller is configured to: use, as an actual phase shift angle, a result obtained by subtracting the phase difference from a preset phase shift angle, and control a phase of a bridge arm voltage of the rectifier to lag behind the phase of the input current fundamental component by the actual phase shift angle. The controller outputs a drive signal for a controllable switching transistor of the rectifier by using the actual phase shift angle. Because a lagging phase caused due to filtering is compensated for, precision of synchronization between the bridge arm voltage and the input current can be increased.