Denso has been granted a patent for a replacement fee setting apparatus for electric vehicles. The apparatus includes a storage device and a processor that sets a lower replacement fee for partial replacement of the power storage device compared to entire replacement. The processor also obtains usage history and determines the power storage element to be replaced based on full charge capacity. The replacement fee is set based on the capacity of the replacement power storage element. GlobalData’s report on Denso gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Denso, battery management systems was a key innovation area identified from patents. Denso's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
Partial and entire replacement fee setting apparatus for electric vehicle power storage device
A recently granted patent (Publication Number: US11685285B2) describes a replacement fee setting apparatus for electric vehicles with replaceable power storage elements. The apparatus includes a storage device that stores information about the full charge capacity of each replaceable power storage element and the stocked replacement power storage elements. A processor is configured to set a lower replacement fee for partial replacement of the power storage device compared to entire replacement. In partial replacement, only a portion of the power storage device is replaced, while in entire replacement, the entire power storage device is replaced.
The processor obtains voltage, current, and temperature information from each replaceable power storage element using sensors. When a request for partial replacement is received, the motor generator of the electric vehicle moves it to a designated location. The processor also obtains the usage history of the power storage device and determines the power storage element with the smallest full charge capacity to be replaced based on this history. It then calculates the average capacity value of the remaining replaceable power storage elements and selects a replacement power storage element from the stocked replacements with a capacity greater than the average value but less than the maximum capacity. This helps to minimize variation in full charge capacities among the replaceable power storage elements after partial replacement. The replacement fee is set based on the ratio of the full charge capacity of the selected replacement power storage element to its rated capacity.
Additionally, the patent describes a method for setting a replacement fee for power storage devices in electric vehicles. The method involves storing information about the full charge capacity of each replaceable power storage element and the stocked replacement power storage elements. It also includes obtaining voltage, current, and temperature information from each replaceable power storage element and moving the electric vehicle to a designated location for partial replacement. The method further involves determining the power storage element with the smallest full charge capacity based on the usage history, calculating the average capacity value of the remaining replaceable power storage elements, selecting a replacement power storage element with a capacity greater than the average value but less than the maximum capacity, and setting the replacement fee based on the ratio of the selected replacement power storage element's full charge capacity to its rated capacity.
Overall, this patent introduces an apparatus and method for setting replacement fees in electric vehicles with replaceable power storage elements, aiming to optimize the replacement process and minimize variation in full charge capacities among the elements.
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