TOYOTA MOTOR ENGINEERING & MFG NORTH AMERICA 2020-08-0612 Aug 2020 09:48
SYSTEMS AND METHODS FOR CONTROLLING A VEHICLE BASED ON DRIVER ENGAGEMENT
Systems and methods for controlling a vehicle based on driver engagement are disclosed. In one embodiment, a method of controlling a vehicle includes determining, using driver data from one or more driver sensors, a driver state estimation of a driver of the vehicle, determining, using environment data from one or more environmental sensors, one or more environment anomalies within an environment of the vehicle, and determining an anomaly category for at least one of the one or more environment anomalies. The method further includes, based on the driver state estimation and one or more anomaly categories, selecting a failure mode, based on the failure mode, selecting at least one failsafe action, and determining an operation of the vehicle in accordance with the failure mode.
[0031] Still referring to FIG. 1, the one or more sensors 120 may generally include the various sensors described herein, including, for example, one or more driver sensors 122 capable of monitoring the posture and physiological conditions of the driver. The type of driver sensors 122 is not limited by this disclosure. The sensors may be worn by the driver, or embedded within the cabin of the vehicle. As described in more detail below, driver behavior sensors are capable of determining the posture and activities of the driver, and the driver physiological sensors are capable of generating physiological information of the driver. Non-limiting driver sensors 122 include an imaging sensor, a camera, an infrared sensor, a gaze detector, a pressure sensor, a proximity sensor, a wearable sensor, a heartrate sensor, a blood glucose sensor, a magnetoencephalography (MEG) sensor, a blood pressure sensor, a skin conductance sensor, and a respiration sensor, and a blood oxygenation sensor.
[0032] The one or more sensors 120 may also include one or more environment sensors 124 capable of generating data regarding features and objects within the environment surrounding the vehicle. The type of environmental sensor 124 is not limited by this disclosure. Non-limiting example environment sensors include a camera, an infrared sensor, a lidar sensor, a radar sensor, and a proximity sensor. The one or more environmental sensors 124 should be capable of returning data regarding features (e.g., roadway features such as route, terrain, road markings/lines, curves, and the like) and objects (e.g., stop signs, stop lights, pedestrians, other vehicles, bicyclists, and the like). In some embodiments, the one or more environmental sensors 124 may also detect weather, such as rain, fog, snow and the like.
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