US 12,263,828 B2
System for improving fuel efficiency of fuel cell vehicle and control method thereof
Gwan Ho Baek, Whasung-Si (KR); and Joon Yong Lee, Whasung-Si (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 Dec. 2, 2022, as Appl. No. 18/073,953.
Claims priority of application No. 10-2022-0089094 (KR), filed on Jul. 19, 2022.
Prior Publication US 2024/0025392 A1, Jan. 25, 2024
Int. Cl. B60W 20/12 (2016.01); B60L 53/53 (2019.01); B60L 58/30 (2019.01); B60W 20/15 (2016.01); G01C 21/34 (2006.01)
CPC B60W 20/12 (2016.01) [B60L 53/53 (2019.02); B60L 58/30 (2019.02); B60W 20/15 (2016.01); G01C 21/3469 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for improving fuel efficiency of a vehicle, the system comprising:
a fuel cell that provides driving energy to the vehicle;
an information collection unit including a navigation device and configured to collect travel route information of the vehicle including at least one of a road condition or a traffic condition for an expected travel route of the vehicle, by using the navigation device included in the information collection unit; and
a controller that is connected to the information collection unit and configured to divide the expected travel route into a plurality of driving sections through the travel route information of the vehicle collected in the information collection unit, to establish a power generation strategy of the fuel cell for each driving section of the plurality of driving sections, and to control power generation of the fuel cell according to a predetermined power generation strategy of the fuel cell in a corresponding driving section among the plurality of driving sections when the vehicle arrives at each driving section of the plurality of driving sections,
wherein the controller is configured to derive energy consumption efficiency of the fuel cell through the travel route information of the vehicle for each driving section of the plurality of driving sections, and to establish the power generation strategy of the fuel cell according to the derived energy consumption efficiency of the fuel cell,
wherein the controller is configured to determine driving energy consumption of the vehicle through the travel route information of the vehicle for each driving section of the plurality of driving sections, and to derive the energy consumption efficiency of the fuel cell according to a data map provided in advance according to the determined driving energy consumption of the vehicle,
wherein the data map includes the driving energy consumption of the vehicle determined according to the travel route information of the vehicle as an input thereof and the energy consumption efficiency of the fuel cell as an output thereof,
wherein the controller is configured to establish the power generation strategy of the fuel cell according to the energy consumption efficiency of the fuel cell derived based on the data map, and to establish the power generation strategy of the fuel cell so that the driving energy consumption of the vehicle determined for each driving section of the plurality of driving sections matches a reference value, and
wherein the reference value is the driving energy consumption of the vehicle at a point in time when the energy consumption efficiency of the fuel cell is highest.