Staggered Gearbox Shifting for Torque Stability

The patent divides the simultaneous gear shifting operation into sequential segments. Instead of initiating gear shifts in all gearboxes at the same time, the control unit staggers the initiation timing so that gear shifts occur in sequence across different gearboxes. This segmentation of the shifting operation eliminates the momentary power loss that occurs when all gearboxes shift simultaneously, thereby maintaining vehicle performance while still completing the overall shifting process efficiently.

The control unit initiates gear shifting in one gearbox before initiating it in another gearbox. By performing the gear shift operation in a predetermined sequence rather than simultaneously, the system prepares each gearbox to shift at an optimal time. This preliminary action approach ensures that torque disruption is minimized because the powertrain can compensate for the shifting in one gearbox while another gearbox is still engaged, maintaining smoother torque delivery to the wheels.