Enhanced electrically driven vehicle performance with extended motor torque capability

Enhanced electrically driven vehicle performance with extended motor torque capability. High voltage electrical systems, control logic, and electrically driven automobiles with optimized motor torque output are presented. A method of operating an electrically driven vehicle includes a controller identifying an operating mode of the vehicle and determining a calibration setting corresponding to the operating mode. These calibration settings include coolant temperature (CoolTemp) lower and upper limits, and motor calibration torque limits as a function of coolant temperature. The controller determines whether a current coolant temperature of the power inverter coolant is greater than a low coolant temperature threshold and less than a high coolant temperature threshold. If so, the controller sets a motor torque limit of the vehicle electric machine to a torque limit value selected from a fixed torque limit region within a torque limit data range between the low and high coolant temperature thresholds. The contr