Patent ID: 11952012
Assignee: KIA CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 15:
16. A driving assistance system for a vehicle, the driving assistance system comprising:
a driving information provision unit configured to acquire and provide driving information of a traveling vehicle;
a control unit configured to generate and output a control signal for driving assistance when it is determined the vehicle travels on a rough road based on the driving information of the vehicle provided by the driving information provision unit and it is determined that the vehicle is currently in a rough road traveling state;
a steering actuator configured to generate and apply a steering assistance force according to a control value of the control signal for the driving assistance output by the control unit to a steering wheel; and
an interface unit configured to deliver selection information and setting information input by an operation of a driver to the control unit while displaying information necessary for the driver's operation and for executing the driving assistance,
wherein the control unit is configured to generate and output the control signal for the driving assistance based on the driving information of the vehicle provided by the driving information provision unit and the setting information input through the interface unit, and
wherein the control unit is configured:
to calculate a power spectrum density (PSD) value at an interval of a first setting time using an RMS value calculated from a signal value of a sensor for the first setting time, wherein the sensor is configured to detect vehicle state information of the vehicle,
to calculate a sum power spectrum density (SPSD) value by summing and cumulating the PSD values for a predetermined second setting time, and
to determine a recommendation speed corresponding to the calculated SPSD value.