US 11,731,637 B2
Driver assistance system
Masaaki Yamaoka, Tokyo-to (JP); Florin Baiduc, Chiba (JP); Yuki Yoshihama, Tokyo-to (JP); Masayasu Tanase, Ichikawa (JP); and Toshinobu Watanabe, Tokyo-to (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 11, 2021, as Appl. No. 17/173,558.
Claims priority of application No. 2020-021648 (JP), filed on Feb. 12, 2020.
Prior Publication US 2021/0245769 A1, Aug. 12, 2021
Int. Cl. B60W 40/09 (2012.01); B60W 30/14 (2006.01); B60W 30/095 (2012.01); B60W 50/00 (2006.01)
CPC B60W 40/09 (2013.01) [B60W 30/0956 (2013.01); B60W 30/143 (2013.01); B60W 2050/0075 (2013.01); B60W 2540/229 (2020.02)] 9 Claims
OG exemplary drawing
 
1. A driver assistance system provided with a driver assistance control device,
the driver assistance control device is configured to:
detect a value of a parameter relating to a degree of concentration of a driver with respect to driving of the vehicle;
acquire assistance levels of driver assistance functions set by the driver;
perform a plurality of driver assistance functions assisting driving by the driver; and
automatically change settings of the plurality of driver assistance functions in accordance with the detected value of the parameter, wherein
the driver assistance control device automatically changes the settings of first driver assistance functions including at least one of a plurality of driver assistance functions so that the assistance levels become higher than the levels set by the driver when the degree of concentration of the driver with respect to driving of the vehicle becomes lower and the value of the parameter becomes a first value, and automatically changes the settings of second driver assistance functions including at least another of a plurality of driver assistance functions so that the assistance levels become higher than the levels set by the driver when the degree of concentration of the driver with respect to driving of the vehicle becomes lower and the value of the parameter becomes a second value different from the first value;
wherein even if the value of the parameter changes to a value showing a higher degree of concentration of the driver with respect to driving of the vehicle than the first value or the second value after automatically changing the setting of the collision avoidance assistance function from the stopped state to the operating state, the driver assistance control device does not change the setting of the collision avoidance assistance function from the operating state to the stopped state.