Mitsubishi Motors has patented a vehicle system with two electric machines and an engine, allowing efficient power distribution to drive wheels. A controller calculates driving power and adjusts electric machine usage for optimal performance. The mechanism engages power paths based on driving demands, enhancing overall efficiency. 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 May 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.
Controller for vehicle power distribution between engine and electric machines
A recently granted patent (Publication Number: US11981321B2) discloses a controller designed for vehicles equipped with an engine, a first rotating electric machine, and a second rotating electric machine. The controller manages the power transmission from these components to the drive wheel through various power transmission paths. One key feature of this controller is its ability to calculate the requested driving power of the vehicle and adjust the operation of the rotating electric machines accordingly. For instance, when there is an increase in the requested driving power while the engine is running, the controller activates the second rotating electric machine to transmit power to the drive wheel. Subsequently, it switches the first rotating electric machine to a power-running state based on the requested driving power, ensuring optimal performance and efficiency.
Moreover, the controller includes additional functionalities such as controlling the second rotating electric machine to be in a power-running state or a no-load state based on the requested driving power compared to a predetermined threshold. This threshold is set higher than the maximum driving power of the engine, ensuring smooth transitions and optimal power distribution. Additionally, the controller is programmed to shift the mechanism from a disengaged state to an engaged state when the requested driving power exceeds the maximum driving power of the engine while it is running. These features collectively enhance the overall performance, efficiency, and power management of vehicles equipped with this innovative controller, as outlined in the granted patent.
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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.
