Motor control apparatus of brake system and control method thereof
AssigneeHl Mando Corporation
InventorKyoungjin Joo
Life of this patent
Estimating the term…
Abstract
A motor control apparatus of a brake system and a control method are provided. The motor control apparatus of a brake system includes a motor coil unit disposed in the motor, an inverter configured to supply current to the motor coil unit, a current detector configured to detect motor current supplied to the motor coil unit, and a controller configured to adjust current supplied to the motor by estimating a temperature of the motor coil unit by receiving information detected by the current detector.
Claims15
A motor control apparatus of a brake system, the motor control apparatus comprising:
- a motor coil unit disposed on a motor and including a first motor coil and a second motor coil;
- an inverter including a first inverter configured to supply current to the first motor coil and
- a second inverter configured to supply current to the second motor coil;
- a current detector configured to detect motor current supplied to the motor coil unit;
- and
- a controller configured to adjust current supplied to the motor by estimating a temperature of the motor coil unit by receiving information detected by the current detector,
- wherein the controller includes:
- a first control unit configured to control the first inverter and to control current supplied to the first motor coil;
- and
- a second control unit configured to control the second inverter and to control current supplied to the second motor coil,
- wherein one of the first control unit and the second control unit is configured to be determined as a main controller, and the other one of the first control unit and the second control unit is configured to be determined as a sub-controller;
- and
- wherein the main controller configured to calculate a motor torque value according to a required pressure, to calculate a current command value of the motor according to the required pressure, and to share the calculated current command value with the sub-controller.
A control method of a motor control apparatus of a brake system, the control method comprising:
- determining a main controller such that any one of a first controller configured to control a first motor coil of a motor and a second controller configured to control a second motor coil of the motor becomes the main controller;
- estimating a temperature of the first motor coil or the second motor coil by calculating line-to-line current of the first motor coil or the second motor coil;
- and
- adjusting current provided to the motor based on the temperature of the first motor coil or the second motor coil,
- wherein the estimating of the temperature of the first motor coil or the second motor coil comprises:
- calculating, by the main controller, a motor torque value according to a required pressure;
- calculating, by the main controller, a current command value provided to the motor so that the calculated motor torque is output;
- and
- sharing, by the main controller, the calculated current command value with a sub-controller.
Dependencies are inferred from the claim text.