This paper addresses the issue of the impact of rotor temperature variation on the output torque precision in electric vehicles, proposing a simple magnetic flux feedforward torque compensation scheme to enhance torque precision. The rotor temperature affects the rotor magnetic flux, which in turn impacts the output torque. Traditional methods calibrate and lookup the torque-current mapping relationship at different rotor temperatures to ensure torque precision and MTPA operation. However, the testing resources required for calibration and the chip resources needed for lookups are substantial. This paper eliminates the influence of magnetic flux variation through simple feedforward at the torque command, achieving quasi-MTPA operation while ensuring torque precision. Experimental results indicate that the magnetic flux feedforward compensation method can effectively enhance torque precision during rotor temperature variations, meeting system requirements.