US 12,139,112 B2
Brake system, braking force distribution apparatus, and electric brake apparatus
Suguru Saotome, Hitachinaka (JP); Norikazu Matsuzaki, Hitachinaka (JP); and Masayuki Kikawa, Hitachinaka (JP)
Assigned to HITACHI ASTEMO, LTD., Ibaraki (JP)
Appl. No. 17/439,264
Filed by Hitachi Astemo, Ltd., Ibaraki (JP)
PCT Filed May 26, 2020, PCT No. PCT/JP2020/020743
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2020/241637, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-099437 (JP), filed on May 28, 2019.
Prior Publication US 2023/0174036 A1, Jun. 8, 2023
Int. Cl. B60T 13/14 (2006.01); B60T 7/12 (2006.01); B60T 8/17 (2006.01); B60T 8/1761 (2006.01); B60T 13/58 (2006.01); B60T 13/74 (2006.01); B60T 8/1755 (2006.01)
CPC B60T 13/147 (2013.01) [B60T 8/17616 (2013.01); B60T 13/58 (2013.01); B60T 13/741 (2013.01); B60T 13/745 (2013.01); B60T 7/12 (2013.01); B60T 8/1755 (2013.01); B60T 2201/06 (2013.01); B60T 2270/10 (2013.01); B60T 2270/30 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A brake system comprising:
a braking force distribution apparatus configured to distribute a braking force to apply to a braking force holding wheel and a non-braking force holding wheel of a vehicle, the vehicle including the braking force holding wheel including a braking force holding mechanism configured to hold a braking force on the vehicle and the non-braking force holding wheel not including this braking force holding mechanism; and
a parking brake control apparatus configured to control actuation of the braking force holding mechanism,
wherein the braking force distribution apparatus increases distribution of the braking force to the braking force holding wheel according to a reduction in a speed of the vehicle due to braking, and distributes the braking force so as to allow the vehicle to be kept stopped due to the braking force applied to the braking force holding wheel when the vehicle is stopped, and
wherein the parking brake control apparatus holds the braking force with the vehicle kept stopped due to the braking force applied to the braking force holding wheel.