MOTOR ROTATION ANGLE DETECTION APPARATUS AND ELECTRIC POWER STEERING APPARATUS USING SAME

• Main Authors: KAWANO Yu, ASAO Yoshihito
• Format: Patent
• Language: English; French; German
• Published: 16.06.2021
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MOTOR VEHICLES; PERFORMING OPERATIONS; PHYSICS; TARIFF METERING APPARATUS; TESTING; TRAILERS; TRANSPORTING

According to a motor rotational angle detection device which includes a plurality of motor rotational angle detection units (6 and 7) which detect a rotational angle of a motor (I), and a normal angle decision device (8) which includes a motor rotational angle information item and decides a normal motor rotational angle, in which when a difference is caused between output values of the plurality of motor rotational angle detection units (6 and 7), the normal angle decision device (8) respectively compares the output value of each of the motor rotational angle detection units (6 and 7) with the motor rotational angle information item included in the normal angle decision device (8), and identifies the normal motor rotational angle detection unit, and decides the normal motor rotational angle.