Switch device, push-type input device, and electronic shifter

A push-type input device comprising:

• a switch on which a push operation is to be performed by an operator;
• a rotating body configured to rotate in accordance with the push operation of the switch;
• three or more sensors configured to detect three or more respective measurement values of a rotation angle of the rotating body;
• a memory;
• and
• a processor coupled to the memory and configured to
• determine a switching state of the switch by making a majority decision based on measurement levels of the three or more measurement values of the three or more sensors, and
• determine whether a failure has occurred for each of the three or more sensors,
• wherein the processor compares a measurement value of one sensor among the three or more sensors with measurement values of other sensors other than the one sensor among the three or more sensors, and determines that the one sensor has failed in a case where half or more of the measurement values of the other sensors are not in a predetermined range of the measurement value of the one sensor, said predetermined range of the measurement value of the one sensor including a predetermined rotation angle including the detected rotation angle of the one sensor.

An electronic shifter comprising:

• a switch configured to select a shift position of a vehicle,
• three or more sensors configured to detect three or more respective measurement values with respect to an operation position of the switch, said three or more respective measurement values being a rotation angle of a rotating body that rotates according to an operation of the switch;
• a memory;
• and
• a processor coupled to the memory and configured to
• determine a switching state of the switch by making a majority decision based on measurement levels of the three or more measurement values of the three or more sensors, and
• determine whether a failure has occurred for each of the three or more sensors,
• wherein the processor compares a measurement value of one sensor among the three or more sensors with measurement values of other sensors other than the one sensor among the three or more sensors, and determines that the one sensor has failed in a case where half or more of the measurement values the other sensors are not in a predetermined range of the measurement value of the one sensor, said predetermined range of the measurement value of the one sensor including the detected rotation angle of the one sensor.