US 12,427,967 B2
Configuration control method and control system for electronic mechanical brake-by-wire system
Xiaolong Li, Beijing (CN); Lifang Wang, Beijing (CN); Junzhi Zhang, Beijing (CN); Chengkun He, Beijing (CN); Dongsheng Sun, Beijing (CN); and Junfeng Zhang, Beijing (CN)
Assigned to Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing (CN)
Filed by INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES, Beijing (CN)
Filed on Apr. 17, 2024, as Appl. No. 18/637,973.
Application 18/637,973 is a continuation of application No. PCT/CN2022/101750, filed on Jun. 28, 2022.
Claims priority of application No. 202111214257.3 (CN), filed on Oct. 19, 2021.
Prior Publication US 2024/0262333 A1, Aug. 8, 2024
Int. Cl. B60T 13/74 (2006.01); B60T 17/22 (2006.01)
CPC B60T 13/741 (2013.01) [B60T 17/221 (2013.01); B60T 2270/406 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A configuration control method for an electronic mechanical brake-by-wire system, wherein the control method is used for a dual-synchronous-motor electronic mechanical brake-by-wire system configuration, and the dual-synchronous-motor electronic mechanical brake-by-wire system configuration comprises:
an electric control unit (ECU), a first motor, a second motor, a first torque sensor, a second torque sensor, and a brake actuator, wherein the ECU is electrically connected to the first motor and the second motor, the first torque sensor is connected to an output shaft of the first motor, the second torque sensor is connected to an output shaft of the second motor, both the first torque sensor and the second torque sensor are electrically connected to the ECU, and both an output shaft of the first torque sensor and an output shaft of the second torque sensor are connected to the brake actuator; and
the control method comprises:
acquiring a first actual output torque measured by the first torque sensor and a second actual output torque measured by the second torque sensor;
in response to a received signal being a brake loading signal, separately comparing a first difference with an initial torque difference and a maximum torque difference when a motor fails to obtain a comparison result, wherein the first difference is an absolute value of a difference between the first actual output torque and the second actual output torque; and
controlling the first motor and the second motor according to the comparison result to complete brake loading by means of the brake actuator, wherein the initial torque difference is less than the maximum torque difference.