PACCAR has patented a method for starting a vehicle’s engine that involves rotating the crankshaft while keeping the exhaust valves of the combustion chambers open before fuel injection. The engine control system executes this method in response to an engine start signal, enhancing the starting process. GlobalData’s report on PACCAR 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 PACCAR, Driving behavior monitoring was a key innovation area identified from patents. PACCAR's grant share as of June 2024 was 75%. Grant share is based on the ratio of number of grants to total number of patents.
Engine starting method with open exhaust valves
The patent US12037956B1 describes an innovative engine control system designed for vehicles, which utilizes a processor and memory to execute specific instructions for engine operation. Upon receiving an engine start signal, the system transmits engine control signals that initiate the rotation of the crankshaft and manage the exhaust valves of the combustion chambers. Initially, the exhaust valves remain open while the crankshaft rotates through a defined number of rotations before fuel injection occurs. The system further delineates between two sets of combustion chambers, with distinct control strategies for each, including the timing of valve operations and fuel injection based on crankshaft speed and engine temperature.
Additionally, the patent outlines a method for starting the vehicle's engine, emphasizing the sequential control of the crankshaft and combustion chamber valves. The method specifies that after the crankshaft reaches a certain speed, the exhaust valves of one set of combustion chambers will open and close, while those of another set will remain open until fuel is injected. This approach aims to optimize engine performance by controlling the timing of fuel injection and valve operations based on the engine's operational parameters. The claims also highlight the importance of temperature thresholds in determining when fuel should be injected and ignited within the combustion chambers, ensuring efficient engine startup and operation.
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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.
