Patent ID: 11926310
Assignee: HYUNDAI MOTOR COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 3:
4. A method for controlling a speed limit of a hybrid electric vehicle, the method comprising:
correcting a virtual vehicle speed to a target limit speed when an actual vehicle speed is higher than the target limit speed, wherein the virtual vehicle speed is transmitted to a hybrid control unit;
correcting a virtual accelerator position sensor (APS) value to a first APS value when the first APS value is smaller than a second APS value, wherein the first APS value corresponds to a constant-speed driving load set to achieve the target limit speed based on load conditions and the second APS value corresponds to the target limit speed;
operating the vehicle in a first mode when an actual APS value and the virtual APS value are substantially the same and transitioning to a second mode when the actual APS value and the virtual APS value become different, wherein the first mode is a mode for sustaining a state of charge (SOC) of a battery at the target limit speed and the second mode is a mode for depleting the SOC; and
determining a transmission gear position by applying the virtual vehicle speed and the virtual APS value to one of a first shifting pattern and a second shifting pattern, wherein the first shifting pattern corresponds to the first mode and the second shifting pattern corresponds to the second mode.