Intelligent vehicle navigation systems, methods, and control logic for deriving road segment speed limits

An intelligent vehicle navigation system comprising:

• a motor vehicle with a vehicle body, a vehicle navigation system with a location tracking device and an electronic display device attached to the vehicle body, and a resident vehicle controller attached to the vehicle body and operatively connected to the vehicle navigation system, the resident vehicle controller being configured to:
• determine, via the location tracking device of the vehicle navigation system, a vehicle location of the motor vehicle;
• determine a designated road segment corresponding to the vehicle location;
• and
• generate host vehicle speed data indicative of a vehicle speed of the motor vehicle while travelling on the designated road segment for a calibrated timeframe;
• and
• a remote system server computer operable to communicate with the motor vehicle, the remote system server computer being configured to:
• receive the host vehicle speed data from the motor vehicle;
• receive crowd-sourced speed data indicative of vehicle speeds of multiple participatory vehicles while travelling on the designated road segment for the calibrated timeframe;
• accumulate a statistical speed distribution function for the designated road segment based on the host vehicle speed data and crowd-sourced speed data;
• generate a finite mixture model from the statistical speed distribution function to estimate a speed limit range for the designated road segment;
• and
• select a speed limit candidate from the estimated speed limit range,
• wherein the resident vehicle controller is operable to receive the selected speed limit candidate from the remote system server computer and responsively transmit a command signal to a resident vehicle subsystem to execute a control operation based on the speed limit candidate.