US 12,304,319 B2
Method for the performance-enhancing driver assistance of a road vehicle
Alessandro Flumeri, Modena (IT); Andrea Giacomini, Modena (IT); and Fabio Tancredi, Modena (IT)
Assigned to FERRARI S.P.A., Modena (IT)
Filed by FERRARI S.p.A., Modena (IT)
Filed on Jun. 21, 2022, as Appl. No. 17/845,474.
Claims priority of application No. 102021000017087 (IT), filed on Jun. 29, 2021.
Prior Publication US 2022/0410723 A1, Dec. 29, 2022
Int. Cl. B60L 15/20 (2006.01); B60L 7/10 (2006.01); B60W 20/15 (2016.01)
CPC B60L 15/2009 (2013.01) [B60L 7/10 (2013.01); B60L 2240/12 (2013.01); B60L 2240/645 (2013.01); B60L 2240/80 (2013.01); B60W 20/15 (2016.01); B60W 2520/10 (2013.01); B60W 2552/05 (2020.02)] 12 Claims
OG exemplary drawing
 
1. A method for the performance-enhancing driver assistance of a road vehicle (1) driven by a driver (DR) and provided with at least two drive wheels (3) driven by at least one electric motor (5) connected to a corresponding vehicular battery pack (6); the method comprises the steps of:
defining a dynamic model of the road vehicle (1);
determining a route (R) of a race track (T) travelled by the road vehicle (1) and identifying an optimal trajectory with the dynamic model for the route that maintains a highest average velocity during a lap of the race track;
calculating, as a function of the dynamic model of the road vehicle (1) and of the route (R), a convenience index (CI) relative to the use of energy of the vehicular battery pack (6) by the electric motor (5), wherein the convenience index (CI) is defined as time gained on lap per kWh and is a function of a velocity (Vx) of the road vehicle (1) and a distance (DNB) remaining before the next braking;
subdividing the route (R) into a plurality of sectors (7) assigning to each a relative value of the calculated convenience index (CI);
delivering electrical power to the drive wheels (3) according to the value of the convenience index (CI) assigned to each sector (7) of the route (R) in order to optimize the travel times of the route (R),
wherein delivering the electrical power to the drive wheels comprises determining one or more boost points within each of the plurality of sectors, wherein the electrical power is delivered in an amount as a function of the value of the convenience index (CI) assigned to a given one of the plurality of sectors.