MAXIMUM VALUE/MINIMUM VALUE DETECTING METHOD, MAXIMUM VALUE/MINIMUM VALUE DETECTOR, TORQUE DETECTOR AND STEERING DEVICE EQUIPPED WITH THE MAXIMUM VALUE/ MINIMUM VALUE DETECTOR

摘要

PROBLEM TO BE SOLVED: To provide a maximum value/minimum value detecting method and a maximum value/minimum value detector, dispensing with setting special values such as a threshold, and to provide a torque detector and a steering device equipped with the maximum value/minimum value detector. SOLUTION: A signal processing part 20 detects crossings of detection signals A and B outputted from MR (magnetoresistance effect element) sensors 1A and 2A (1B and 2B). The maximum values and minimum values of the signals A and B are found based on the maximum values and minimum values of the signals A and B within a time interval between time points at which the crossings are detected.