Patent ID: 11858537
Assignee: HYUNDAI MOTOR COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method of operating a foldable accelerator pedal device in a manual driving mode of an autonomous driving vehicle, the method comprising:
comparing, with a vehicle controller, a driving speed of the autonomous driving vehicle and a road speed limit, and determining, with the vehicle controller, whether or not the driving speed exceeds the road speed limit while the autonomous driving vehicle is in the manual driving mode; and
when the vehicle controller determines that the driving speed exceeds the road speed limit, operating, by the foldable accelerator pedal device, a pedal pad using an actuator actuated for a pop-up operation and a hiding operation of the pedal pad, and activating, using the actuator, a safety mode for sending a warning to a driver by an operation of the pedal pad,
wherein the safety mode includes a haptic mode, a pedal pad protrusion reducing mode in which a length of protrusion of the pedal pad is reduced, and a pedal pad hiding mode in which the pedal pad is hidden,
wherein:
comparing the driving speed and the road speed limit comprises performing, by the vehicle controller, a first check, a second check, and a third check, which are continuously performed at time differences on a road having the same speed limit;
when it is determined in the second check that the driving speed exceeds the road speed limit, the protrusion reducing mode of the pedal pad is activated by actuating the actuator; and
the haptic mode is simultaneously activated when the protrusion reducing mode of the pedal pad is activated.