US 12,233,869 B2
Vehicle travel assistance system
Natsuki Manita, Tokyo (JP); and Kensuke Inamoto, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Jun. 24, 2022, as Appl. No. 17/849,151.
Claims priority of application No. 2021-115862 (JP), filed on Jul. 13, 2021.
Prior Publication US 2023/0014274 A1, Jan. 19, 2023
Int. Cl. B60W 30/14 (2006.01); B60W 10/04 (2006.01); B60W 10/18 (2012.01)
CPC B60W 30/143 (2013.01) [B60W 10/04 (2013.01); B60W 10/18 (2013.01); B60W 2520/10 (2013.01); B60W 2720/10 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A vehicle travel assistance system comprising:
a travel assistance control unit configured, in a braking-and-driving-force distribution control mode, to control distribution of a driving force or a braking force to wheels of a vehicle; and
a travel assistance setting unit configured to activate, deactivate, or reactivate the braking-and-driving-force distribution control mode based on a speed of the vehicle,
wherein the travel assistance setting unit deactivates the braking-and-driving-force distribution control mode based on determining that the speed of the vehicle becomes equal to or greater than a first speed while the braking-and-driving-force distribution control mode is activated in the vehicle, and
wherein the travel assistance setting unit reactivates the braking-and-driving-force distribution control mode based on determining that the speed of the vehicle becomes equal to or less than a second speed lower than the first speed while the braking-and-driving-force distribution control mode is deactivated in the vehicle due to the speed of the vehicle becoming equal to or greater than the first speed,
wherein the vehicle travel assistance system further comprises a memory,
wherein the travel assistance setting unit is configured to record automatic reactivation information of the braking-and-driving-force distribution control mode in the memory based on determining that the speed of vehicle becomes equal to or greater than the first speed while the braking-and-driving-force distribution control mode is activated in the vehicle,
wherein the travel assistance setting unit is configured to automatically supply the automatic reactivation information to the travel assistance control unit to reactivate the braking-and-driving-force distribution control mode based on determining that the speed of vehicle becomes equal to or less than the second speed, and
wherein the travel assistance setting unit is further configured to, based on (1) selecting an automatic cruise control mode after recording the automatic reactivation information in the memory and (2) determining that the speed of the vehicle is equal to or greater than the first speed, i) delete the automatic reactivation information from the memory, and ii) supply setting information to perform the travel assistance in the automatic cruise control mode to the travel assistance control unit.