Techniques for calculating surface breakpoints for secondary safety verifications in vehicle controls systems

A calibration method for a multi-dimensional surface for functional safety verification of a control system of a vehicle, the calibration method comprising:

• accessing, by a computer system, a memory configured to store operation data relative to the control system of the vehicle, the operation data representing a multi-dimensional surface comprising a plurality of data points;
• identifying, by the computer system, a plurality of breakpoints for representing the multi-dimensional surface based on a maximum allowable number of breakpoints, instantaneous data point slopes, and minimum/maximum breakpoint spacing constraints;
• generating, by the computer system, a calibrated look-up table for the control system, the calibrated look-up table including the plurality of breakpoints, wherein the calibrated look-up table is configured to be utilized for functional safety verification of an output of the control system;
• receiving, by the control system of the vehicle and from the computer system, the calibrated look-up table and storing, by the control system, the calibrated look-up table, wherein the calibrated look-up table requires less memory storage capacity than all possible outputs of a neural network model executable by the vehicle;
• controlling, by the control system, operation of the vehicle including generating, based on the neural network model, the output;
• and
• during the operation of the vehicle, utilizing, by the control system, the calibrated look-up table to determine whether the output satisfies a functional safety verification.