US 11,897,442 B2
Brake controller and method for controlling brake
Hirofumi Momose, Numazu (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on May 13, 2021, as Appl. No. 17/319,642.
Claims priority of application No. 2020-095504 (JP), filed on Jun. 1, 2020.
Prior Publication US 2021/0370896 A1, Dec. 2, 2021
Int. Cl. B60T 13/00 (2006.01); B60T 8/173 (2006.01); B60T 8/172 (2006.01); B60T 13/74 (2006.01)
CPC B60T 8/173 (2013.01) [B60T 8/172 (2013.01); B60T 13/741 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A brake controller for controlling a brake device of a vehicle, the brake controller comprising:
a control circuit that calculates target braking force every predetermined period, in accordance with feedback control on at least acceleration or speed of the vehicle steered for parking; and
a filter circuit that outputs, when the amount of change in the target braking force over time is within a predetermined tolerable range, output braking force to the brake device, the output braking force being obtained by applying a low-pass filter having a predetermined time constant to the target braking force,
on the other hand, when the amount of change is outside the predetermined tolerable range, outputs, without applying the low-pass filter to the target braking force, the target braking force to the brake device as the output braking force or outputs, to the brake device, the output braking force calculated by correcting smoothed target braking force so that a difference between the smoothed target braking force and the target braking force is within the predetermined tolerable range, the smoothed target braking force being obtained by applying the low-pass filter to the target braking force.