Disclosed are a driver control behavior quantification method and device employing the principle of least action. The driver control behavior quantification method comprises: S1, pre-configuring, in an electronic control unit of a vehicle, a driver control mechanism quantification description module, wherein the driver control mechanism quantification description module comprises an action amount SRisk reflecting both a traffic risk and traffic efficiency of driving control behavior of a driver; S2, using an information acquisition device on the vehicle to acquire time-synchronized vehicle information and traffic environment information; and S3, using, according to the time-synchronized vehicle information and traffic environment information, the SRisk in the driver control mechanism quantification description module to acquire a current advised driving speed so as to cause the value of the action amount SRisk to be minimized. The present invention uses the principle of least action to describe a trade-off between risk and efficiency in a process of a driver driving a vehicle, and quantitatively describes a driving feature of maximizing the strengths and minimizing the weaknesses of any driver in a driving process.
DRIVER CONTROL BEHAVIOR QUANTIFICATION METHOD AND DEVICE EMPLOYING PRINCIPLE OF LEAST ACTION