US 12,459,374 B2
Braking and driving force control apparatus
Koji Matsuno, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Nov. 28, 2023, as Appl. No. 18/521,532.
Claims priority of application No. 2022-194124 (JP), filed on Dec. 5, 2022.
Prior Publication US 2024/0181895 A1, Jun. 6, 2024
Int. Cl. B60L 15/20 (2006.01); B60K 17/354 (2006.01); B60K 17/356 (2006.01); B60L 7/26 (2006.01)
CPC B60L 15/2009 (2013.01) [B60L 7/26 (2013.01); B60K 17/354 (2013.01); B60K 17/356 (2013.01); B60L 2240/10 (2013.01); B60L 2240/18 (2013.01); B60L 2240/26 (2013.01); B60L 2240/42 (2013.01); B60L 2240/46 (2013.01); B60L 2240/64 (2013.01); B60L 2260/20 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A braking and driving force control apparatus to be provided in a vehicle, the vehicle including a front-wheel longitudinal force generator and a rear-wheel longitudinal force generator, the front-wheel longitudinal force generator being configured to generate a longitudinal force of a front wheel, and the rear-wheel longitudinal force generator being configured to generate a longitudinal force of a rear wheel, the braking and driving force control apparatus comprising:
a first road surface friction coefficient setting unit configured to set a first road surface friction coefficient;
a second road surface friction coefficient setting unit configured to set a second road surface friction coefficient larger than the first road surface friction coefficient; and
a braking and driving force distribution control unit configured to control an output allotment ratio between the front-wheel longitudinal force generator and the rear-wheel longitudinal force generator by using the first road surface friction coefficient and the second road surface friction coefficient, wherein
the braking and driving force distribution control unit is configured to, when the front-wheel longitudinal force generator and the rear-wheel longitudinal force generator generate a driving force, control the output allotment ratio by using the first road surface friction coefficient, and
the braking and driving force distribution control unit is configured to, when the front-wheel longitudinal force generator and the rear-wheel longitudinal force generator generate a braking force, control the output allotment ratio by using the second road surface friction coefficient.