Acceleration with virtual gear ratios from low speeds
AssigneeZF Friedrichshafen AG
InventorsSimon Geiger, Matthias Duller
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for accelerating a vehicle with a continuously variable transmission (1050) where a gear ratio of the transmission is at first larger than a gear ratio of a virtual fixed gear. While the vehicle is accelerating, the gear ratio of the transmission is increased to the gear ratio of the virtual fixed gear. The transmission is then operated with the gear ratio of the virtual fixed gear.
Claims9
A method for accelerating a vehicle with a continuously variable transmission (105), wherein a gear ratio of the transmission (105) is at first larger than a gear ratio of a virtual fixed gear, wherein the method comprises:
- increasing the gear ratio of the transmission (105), while the vehicle is accelerating, to the gear ratio of the virtual fixed gear;
- and
- operating the transmission (105) with the gear ratio of the virtual fixed gear.
A method for accelerating a vehicle with a continuously variable transmission (105), comprising:
- checking whether a gear ratio of the transmission (105) corresponds to a gear ratio of a virtual fixed gear or is larger than the gear ratio of the virtual fixed gear;
- determining that the gear ratio of the transmission (105) corresponds to the gear ratio of a virtual fixed gear;
- operating the transmission when the vehicle is accelerating with the gear ratio of the virtual fixed gear;
- determining that the gear ratio of the transmission (105) is larger than the gear ratio of the virtual fixed gear;
- increasing the gear ratio of the transmission (105), while the vehicle is accelerating, to the gear ratio of the virtual fixed gear;
- and
- operating the transmission (105) with the gear ratio of the virtual fixed gear.
Dependencies are inferred from the claim text.