Patent ID: 11873892
Assignee: GREAT WALL MOTOR COMPANY LIMITED
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 0:
1. A method for controlling a gear of a two-speed gearbox having at least a first gear and a second gear, the method comprising:
determining a first target gear of the gearbox reflecting a current driving demand of a user according to a current vehicle-speed; and
performing a gear intervention control of the gearbox based on at least one of the following aspects:
a position information of a drive gear-lever, a rotation-speed of a drive motor of a vehicle, and a gear fault information of the gearbox, to shift the first target gear of the gearbox to a second target gear of the gearbox matching with real-time operation conditions of the vehicle,
wherein the gear intervention control of the gearbox based on the rotation-speed of the drive motor of the vehicle comprises:
shifting the first target gear of the gearbox to a neutral gear of the gearbox as the second target gear, when the rotation-speed of the drive motor of the vehicle is greater than a preset rotation-speed threshold; and
maintaining the first target gear as the second target gear when the rotation-speed of the drive motor of the vehicle is smaller than or equal to the preset rotation-speed threshold.