US 11,912,256 B2
Control apparatus for vehicle and control program for vehicle
Sotaro Muramatsu, Tokyo (JP); and Yosuke Hashimoto, Tokyo (JP)
Assigned to ADVICS CO., LTD., Kariya (JP)
Filed by ADVICS CO., LTD., Kariya (JP)
Filed on Nov. 19, 2021, as Appl. No. 17/455,771.
Claims priority of application No. 2020-196935 (JP), filed on Nov. 27, 2020.
Prior Publication US 2022/0169215 A1, Jun. 2, 2022
Int. Cl. B60T 8/172 (2006.01); B60T 8/24 (2006.01); B60T 8/171 (2006.01); B60T 8/26 (2006.01)
CPC B60T 8/172 (2013.01) [B60T 8/171 (2013.01); B60T 8/246 (2013.01); B60T 8/26 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A control apparatus for a vehicle that is employed in a vehicle capable of adjusting a braking force distribution ratio which is a ratio for distributing a braking force to be applied on wheels at a time of braking the vehicle between a braking force to be applied on front wheels and a braking force to be applied on rear wheels, comprising:
a calculator that is configured to calculate, as a target posture value, a value indicating a target posture of the vehicle;
a distribution setting unit that is configured to change the braking force distribution ratio from a basic braking force ratio during braking of the vehicle so that a posture of the vehicle follows a posture indicated by the target posture value, the basic braking force ratio being a value of the braking force distribution ratio stored as a reference value for adjusting the braking force distribution ratio; and
a state judgment unit that is configured to judge whether or not the target posture value is varied, wherein
if the target posture value is varied when the braking force distribution ratio is different from the basic braking force ratio, the distribution setting unit sets an amount of change, by which the braking force distribution ratio is changed per unit time, equal to or smaller than a restriction amount, and
the state judgment unit divides an area of the target posture value into a first area of the target posture value, which indicates a target posture at the time when the vehicle is going straight, and a second area of the target posture value, which indicates a target posture at the time when the vehicle is turning, as areas of the target posture value for judging whether the target posture value is varied, and judges that the target posture value is varied if the target posture value moves from one of the first area and the second area to the other.