Controller

A controller applied to a moving object movable using a rotary electric machine as a power source, wherein

• the controller is configured to:
• calculate demanded torque of the rotary electric machine based on operation information indicating operation status of the moving object;
• calculate command torque of the rotary electric machine by performing a first gradual change process on the demanded torque of the rotary electric machine to limit a change in the demanded torque;
• and
• perform torque control of the rotary electric machine, the controller comprising:
• a monitoring torque calculator configured to calculate monitoring torque of the rotary electric machine based on the operation information;
• a monitoring gradual change processor configured to perform a second gradual change process, which is different from the first gradual change process, on the monitoring torque;
• and
• a monitoring unit configured to compare the command torque of the rotary electric machine with the monitoring torque after performing the second gradual change process and monitor the torque control of the rotary electric machine based on the result of the comparison,
• the moving object is a hybrid vehicle equipped with an engine and the rotary electric machine as a driving power source,
• the demanded torque of the rotary electric machine is a difference torque between vehicle demanded torque calculated based on the operation information and estimated engine torque calculated based on engine information including engine load information,
• the monitoring torque calculator is configured to calculate the difference torque between the vehicle demanded torque and the estimated engine torque as the monitoring torque,
• the controller further comprising a reliability determination unit configured to:
• estimate first engine torque using first load information as the engine load information;
• estimate second engine torque using second load information, which is different from the first load information, as the engine load information;
• and
• determine reliability of the estimated engine torque based on degree of deviation between the first engine torque and the second engine torque, wherein
• the monitoring unit is configured to monitor the torque control of the rotary electric machine based on determination that the reliability of the estimated engine torque is high by the reliability determination unit.

A controller applied to a moving object movable using a rotary electric machine as a power source, wherein

• the controller is configured to:
• calculate demanded torque of the rotary electric machine based on operation information indicating operation status of the moving object;
• calculate command torque of the rotary electric machine by performing a first gradual change process on the demanded torque of the rotary electric machine to limit a change in the demanded torque;
• and
• perform torque control of the rotary electric machine, the controller comprising:
• a monitoring torque calculator configured to calculate monitoring torque of the rotary electric machine based on the operation information;
• a monitoring gradual change processor configured to perform a second gradual change process, which is different from the first gradual change process, on the monitoring torque;
• and
• a monitoring unit configured to compare the command torque of the rotary electric machine with the monitoring torque after performing the second gradual change process and monitor the torque control of the rotary electric machine based on the result of the comparison,
• the moving object is a hybrid vehicle equipped with an engine and the rotary electric machine as a driving power source,
• the demanded torque of the rotary electric machine is a difference torque between vehicle demanded torque calculated based on operation information and estimated engine torque calculated based on engine information including engine load information,
• the monitoring torque calculator is configured to calculate, as the monitoring torque, the difference torque between the vehicle demanded torque calculated based on the operation information and the estimated engine torque,
• the controller further comprising:
• a torque correction unit configured to:
• calculate an engine torque correction value corresponding to a difference between current engine load and engine load in a predetermined high fuel efficiency region including a highest fuel efficiency point;
• and
• correct the command torque of the rotary electric machine based on the engine torque correction value;
• and
• a correction torque determination unit configured to determine whether the engine torque correction value is within a predetermined range, and
• the monitoring unit is configured to monitor the torque control of the rotary electric machine based on determination that the engine torque correction value is within the predetermined range.