Hybrid Vehicle Torque Monitoring With Real-Time Limit Validation

The patent applies preliminary action by pre-establishing upper and lower limit values for driver's requested torque before actual torque calculation occurs. The controller determines these limit values based on vehicle operating conditions (speed, gear position, engine state) and stores them for subsequent comparison. This preliminary setup enables real-time validation of torque calculations without delaying the acceleration response, thus maintaining reliability while preserving speed response.

The patent implements feedback by continuously comparing the calculated driver's requested torque against the pre-determined upper and lower limit values. When the calculated torque exceeds these limits, the system generates feedback signals to correct the torque command or trigger diagnostic routines. This closed-loop feedback mechanism detects and corrects software or hardware errors in real-time, preventing excessive torque while maintaining normal acceleration response.

The patent applies parameter changes by introducing limit value parameters (upper and lower bounds) that define the acceptable range for driver's requested torque. These parameters are determined based on vehicle operating conditions such as speed, gear position, and engine state. By changing the approach from unmonitored torque calculation to parameter-bounded torque determination, the system achieves verification capability while maintaining relatively simple structure through parameter-based control rather than complex mechanical monitoring.

The patent uses limit values as intermediaries between the torque calculation process and the final torque command. Instead of directly monitoring and analyzing the causes of torque calculation errors, the system introduces upper and lower limit values that mediate the relationship between calculated torque and executed torque. This intermediary approach enables verification of torque calculation accuracy without requiring complex monitoring infrastructure, thus achieving measurement precision with acceptable device complexity.