US 12,391,122 B2
Braking control device
Hirotaka Takeya, Kariya (JP); and Terushige Uraoka, Kariya (JP)
Assigned to ADVICS CO., LTD., Kariya (JP)
Appl. No. 17/776,982
Filed by ADVICS CO., LTD., Kariya (JP)
PCT Filed Nov. 20, 2020, PCT No. PCT/JP2020/043317
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/100840, PCT Pub. Date May 27, 2021.
Claims priority of application No. 2019-209601 (JP), filed on Nov. 20, 2019.
Prior Publication US 2022/0410721 A1, Dec. 29, 2022
Int. Cl. B60L 7/26 (2006.01)
CPC B60L 7/26 (2013.01) [B60L 2240/12 (2013.01); B60L 2240/14 (2013.01); B60L 2240/642 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A braking control device for application in a vehicle, the braking control device comprising:
a hydraulic brake device configured to press a braking member using hydraulic pressure toward a braked member that rotates integrally with a wheel to generate hydraulic braking force;
an electric brake device configured to press the braking member using driving force of a motor toward the braked member to generate electric braking force;
an ESC-ECU configured to adjust the hydraulic braking force by controlling the hydraulic brake device so that a vehicle speed falls within a target vehicle speed range while the vehicle is traveling on a downhill road even without depression of a brake pedal by a driver; and
an EPB-ECU configured to, when at least one of the vehicle speed and the hydraulic pressure is stabilized, control the hydraulic brake device and the electric brake device to replace the hydraulic braking force with the electric braking force, wherein
when the vehicle speed exceeds the target vehicle speed range due to an increase in a gradient of the downhill road on which the vehicle is traveling after the hydraulic braking force is replaced with the electric braking force, the braking control device
controls the hydraulic brake device to adjust the hydraulic braking force so that the vehicle speed falls within the target vehicle speed range when the vehicle speed exceeds the target vehicle speed range, and thereafter
when at least one of the vehicle speed and the hydraulic pressure is stabilized or/and an absolute value of vehicle deceleration becomes equal to or smaller than a second predetermined value, controls the hydraulic brake device and the electric brake device to replace the hydraulic braking force with the electric braking force.