US 12,240,435 B2
Brake control unit, brake control system, vehicle control system, and vehicle comprising the brake control system
Asen-Antonov Marinov, Eindhoven (NL)
Assigned to Hitachi Astemo Netherlands B.V., Zaltbommel (NL)
Filed by Hitachi Astemo Netherlands B.V., Zaltbommel (NL)
Filed on Sep. 2, 2022, as Appl. No. 17/929,506.
Claims priority of application No. 21194877 (EP), filed on Sep. 3, 2021.
Prior Publication US 2023/0073739 A1, Mar. 9, 2023
Int. Cl. B60T 8/88 (2006.01); B60T 8/92 (2006.01); B60T 13/74 (2006.01)
CPC B60T 8/885 (2013.01) [B60T 8/92 (2013.01); B60T 13/746 (2013.01); B60T 2260/00 (2013.01); B60T 2270/402 (2013.01); B60T 2270/406 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A brake control unit comprising a primary control branch and a secondary control branch, the brake control unit being configured (i) to drive a brake actuator with a drive signal in response to an external brake control signal and (ii) to assume an operational mode selected from at least a first, normal operational mode and at least a second operational mode, dependent on a diagnostic state indication;
the primary control branch comprising a primary inverter that is configured to provide the drive signal to the brake actuator in at least the first, normal operational mode, a primary control module to control operation of the primary inverter, and a primary EMI-filter to mitigate noise originating from the primary inverter and the brake actuator, the primary EMI-filter having inputs for receiving electric power from a power source and outputs for providing electric power to the primary inverter;
the secondary control branch comprising a secondary inverter configured to provide the drive signal to the brake actuator in at least the second operational mode, a secondary control module to control operation of the secondary inverter, and a secondary EMI-filter to mitigate noise originating from the second inverter and the brake actuator, the secondary EMI-filter having inputs for receiving electric power from the power source and outputs for providing electric power to the secondary inverter;
wherein during the first, normal operational mode, both the primary EMI-filter and the secondary EMI-filter are coupled with their inputs to the power source.