US 12,257,999 B1
Apparatus and method of escaping a rough road for an electric vehicle
Woon Ki Cho, Seoul (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Mar. 12, 2024, as Appl. No. 18/602,852.
Claims priority of application No. 10-2023-0146388 (KR), filed on Oct. 30, 2023.
Int. Cl. B60W 30/18 (2012.01); B60W 10/119 (2012.01)
CPC B60W 10/119 (2013.01) [B60W 30/18172 (2013.01); B60W 2520/30 (2013.01); B60W 2530/10 (2013.01); B60W 2540/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for escaping an uneven driving surface for an electric vehicle, the apparatus comprising:
a maximum traction identification portion configured to:
search for a steering angle at which maximum traction is generated by applying driving torque while rotating a steering wheel; and
identify maximum wheel torque able to be applied after rotating the steering wheel by the steering angle at which maximum traction is generated;
an axle weight computation portion configured to repeatedly calculate an axle weight applied to front and rear wheels of a vehicle in which various pitching motions are implemented; and
a driveaway controller configured to receive information from the maximum traction identification portion and the axle weight computation portion and to control escape of the vehicle.