Toyota jidosha kabushiki kaisha (20240106275). POWER RECEPTION DEVICE AND NON-CONTACT POWER TRANSMISSION SYSTEM simplified abstract

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POWER RECEPTION DEVICE AND NON-CONTACT POWER TRANSMISSION SYSTEM

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Ryosuke Ikemura of Susono-shi (JP)

Shogo Tsuge of Fuji-shi (JP)

Masato Maemura of Nisshin-shi (JP)

Toshiya Hashimoto of Miyoshi-shi (JP)

POWER RECEPTION DEVICE AND NON-CONTACT POWER TRANSMISSION SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240106275 titled 'POWER RECEPTION DEVICE AND NON-CONTACT POWER TRANSMISSION SYSTEM

Simplified Explanation

The patent application describes a power reception device that includes a power reception coil and a control device that can execute a short-circuit mode to improve power factor when the current and voltage phases are deviated.

  • Power reception device with power reception coil and control device
  • Short-circuit mode to improve power factor
  • Switching elements between power reception coil and load
  • Control device adjusts switching timings based on current and voltage phase deviation

Potential Applications

The technology could be applied in wireless charging systems for electric vehicles, consumer electronics, and industrial machinery.

Problems Solved

This technology addresses the issue of power factor deterioration when the current and voltage phases are not aligned, leading to more efficient power transfer.

Benefits

Improved power factor leads to increased energy efficiency and reduced power losses in wireless power transfer systems.

Potential Commercial Applications

The technology could be utilized in wireless charging stations for electric vehicles, smart home devices, and industrial automation systems.

Possible Prior Art

Prior art may include similar systems for wireless power transfer with power factor correction capabilities, but the specific method described in this patent application may be novel.

Unanswered Questions

How does the short-circuit mode impact the overall efficiency of the power reception device?

The article does not provide specific data on the and efficiency gains achieved by implementing the short-circuit mode.

Are there any limitations to the control device's ability to adjust switching timings based on phase deviation?

The article does not mention any potential challenges or constraints that may affect the control device's capabilities in optimizing power factor through switching element adjustments.


Original Abstract Submitted

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.