Mitsubishi Motors’s patent describes an arrangement for an electric vehicle featuring a rear suspension cross member that supports a drive unit and a power supply unit. The drive unit includes a motor and inverter, while the power supply unit, including a junction box, is mounted on the vehicle floor, with components strategically positioned for efficient power management. GlobalData’s report on Mitsubishi Motors gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Mitsubishi Motors, HEV energy management was a key innovation area identified from patents. Mitsubishi Motors's grant share as of June 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.
Electric vehicle drive unit and power supply unit arrangement
The patent US12036858B2 outlines a novel arrangement structure for a drive unit and a power supply unit in electric vehicles. The design features a rear suspension cross member that supports the left and right rear wheels and is mounted on the lower side of the vehicle's floor. The drive unit, which includes a driving motor, an inverter, and a transaxle, is positioned on this cross member to effectively transmit power to the rear wheels. The power supply unit, comprising a junction box that connects to a driving battery, is strategically placed on the vehicle floor. Notably, the junction box and inverter are positioned on opposite sides of the vehicle's center line, optimizing space and functionality.
Further claims detail the specific alignment and positioning of components within the drive unit and power supply unit. The transaxle and inverter are aligned side by side across the driving motor, with the junction box located on the transaxle side. The arrangement also specifies the orientation of terminal blocks for the junction box and inverter, ensuring efficient power relay through motor-side power cables. Additionally, the design accommodates hybrid vehicles by allowing space for an engine and exhaust routing, enhancing the overall integration of the vehicle's power systems. This innovative structure aims to improve the efficiency and performance of electric and hybrid vehicles by optimizing the arrangement of critical components.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
