US 12,403,878 B2
Method and apparatus for minimizing power loss in redundancy electric brake system
Tae Hyeong Kim, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Nov. 15, 2022, as Appl. No. 17/987,263.
Claims priority of application No. 10-2022-0048300 (KR), filed on Apr. 19, 2022.
Prior Publication US 2023/0331206 A1, Oct. 19, 2023
Int. Cl. B60T 13/74 (2006.01); B62D 5/04 (2006.01)
CPC B60T 13/741 (2013.01) [B62D 5/046 (2013.01); B62D 5/0481 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for control of power loss minimization in a redundancy electric brake system that is provided with a motor to be supplied with power through two independent windings, the apparatus comprising:
a first power module configured to receive power from a battery and supply a three-phase alternating current to a first winding of the motor;
a second power module configured to receive power from the battery and supply a three-phase alternating current to a second winding of the motor;
an input unit configured to receive data from an input information detector, wherein the data comprises first power module diagnostic information, second power module diagnostic information, metal-oxide-semiconductor field-effect transistor (MOSFET) specifications, diode specifications, and a current command for generating a required braking force;
a calculation unit configured to calculate a current threshold of minimum power losses using the data;
a determination unit configured to determine a state of the first power module and a state of the second power module using the first power module diagnostic information and the second power module diagnostic information; and
a control unit configured to, upon determining that both of the state of the first power module and the state of the second power module are normal, perform a mode for control of power loss minimization based on the current command and the current threshold of minimum power losses.