Detection of unintended lane departures
AssigneeScania CV AB (publ)
InventorsFredrik Ling, Fredrik Billberg
Life of this patent
Estimating the term…
Abstract
A method and a system for automatically detecting unintended lane departures of vehicles are described. A lane departure warning system comprises a lane departure recognition unit (10), an alarm generation unit (12), and a driver activity monititoring unit (14). The driver activity monitoring unit (14) is configured to monitor one or more vehicle-related parameters like the steer angle that change continuously in response to a control intervention of a driver. The alarm generation unit (12) generates an alarm if an actual or forthcoming lane departure is detected and if additionally an evaluation of the one or more parameters indicates a low or no driver activity.
Claims14
A method of automatically detecting unintended roadway lane departures of a moving vehicle, comprising:
- monitoring the occurrence of actual or forthcoming lane departures by the vehicle;
- monitoring a plurality of vehicle-related parameters that may change continuously in response to a control intervention or activity of a driver;
- separately evaluating each of the plurality of vehicle-related parameters;
- assessing individual results of the separate evaluations in combination to determine if driver activity is at least low;
- and
- generating an alarm signal if
- a) an actual or forthcoming lane departure is detected and
- b) if an evaluation of the one or more parameters indicates low or no driver activity.
A computer readable recording medium storing a program of instruction for causing a computer to execute steps of
- monitoring the occurrence of actual or forthcoming lane departures by a vehicle;
- monitoring a plurality of vehicle-related parameters that may change continuously in response to a control intervention or activity of a driver;
- separately evaluating each of the plurality of vehicle-related parameters;
- assessing individual results of the separate evaluations in combination to determine if driver activity is at least low;
- and
- generating an alarm signal if
- a) an actual or forthcoming lane departure is detected and
- b) if an evaluation of the one or more parameters indicates low or no driver activity.
A lane departure warning system for vehicles, comprising:
- a lane departure recognition unit supported to be able to and being operable for recognizing actual or forth-coming lane departures;
- a driver activity monitoring unit for monitoring one or more vehicle-related parameters that change continuously in response to a control intervention of a driver and for evaluating the parameters;
- an alarm unit;
- and
- an alarm control unit operable for activating the alarm unit if an actual or forthcoming lane departure is detected by the monitoring and if an evaluation of the one or more parameters in combination indicates low or no driver activity.
Dependencies are inferred from the claim text.