Process for controlling an electric motor of a motor vehicle and motor vehicle with a control unit configured to carry out the process

A process for controlling an electric motor of a motor vehicle, the process comprising the steps of:

• a. determining a target torque to be delivered by the electric motor according to a corresponding demand of a driver of the motor vehicle;
• b. associating the determined target torque with at least one corresponding control target for a control input of the electric motor according to a mapping between the target torque and the control target;
• c. acquiring a feedback signal of the control input;
• d. controlling the electric motor according to a control law as a function of an error indicative of a difference between the feedback signal and the control target, wherein the control law is configured to induce convergence of the error to a zero value;
• e. identifying a critical condition where the error diverges from the null value during step d.;
• f. determining a safety control target corresponding to a safety target torque according to said mapping, wherein the safety target torque is reduced relative to the target torque determined in step a.;
• and
• g. replacing said error in step d., when the critical condition is identified according to step e., with a safety error indicative of a further difference between the feedback signal and the safety control target.