ELECTRIC PARKING BRAKE CONTROL DEVICE AND ELECTRIC PARKING BRAKE CONTROL METHOD

• Main Authors: SETO, Shinji, NISHINO, Kimio, KOJIMA, Daisuke, ARITOMI, Shunsuke, MATSUZAKI, Norikazu
• Format: Patent
• Language: English; French; German
• Published: 12.04.2023
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

An object of the present invention is to accurately control pressing thrust regardless of an individual difference and a use situation of a brake apparatus, and the like. According to the present invention, to control a motor 8 that applies thrust to a piston that presses a brake pad, in a current variation period before an idling current period, a variation in the current and the voltage or a variation in a function including the current and the voltage in the idling current period is computed as a plurality of prospective values (c1, c2, c3). At a predetermined time T0 during the current variation period, one of the plurality of prospective values (c1, c2, c3) is selected on the basis of 4 the current and the voltage, and on the basis of the variation in the current and the voltage or the function related to the selected prospective value, a characteristic parameter of the motor 8 is computed to compute a stop current of the motor 8.