US 12,031,833 B2
Devices for range estimation in battery powered vehicles
Mark William Girard, Kitchener (CA); and Nadia Sophia Stefopulos, Tiny (CA)
Assigned to Geotab Inc., Oakville (CA)
Filed by Geotab Inc., Oakville (CA)
Filed on Mar. 16, 2023, as Appl. No. 18/122,381.
Claims priority of provisional application 63/323,210, filed on Mar. 24, 2022.
Prior Publication US 2023/0304813 A1, Sep. 28, 2023
Int. Cl. G01C 21/34 (2006.01); B60L 3/12 (2006.01); B60L 7/10 (2006.01); B60L 58/10 (2019.01); B60L 58/12 (2019.01)
CPC G01C 21/3469 (2013.01) [B60L 3/12 (2013.01); B60L 7/10 (2013.01); B60L 58/10 (2019.02); B60L 58/12 (2019.02); B60L 2240/12 (2013.01); B60L 2240/62 (2013.01); B60L 2240/66 (2013.01); B60L 2240/662 (2013.01); B60L 2240/70 (2013.01); B60L 2250/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A device for estimating energy consumption by a vehicle for a trip by the vehicle, based on trip data representative of the trip, the device comprising:
at least one sensor interface for receiving sensor data;
at least one processor; and
at least one non-transitory processor-readable storage medium communicatively coupled to the at least one processor, the at least one non-transitory processor-readable storage medium storing processor-executable instructions which, when executed by the at least one processor, cause the device to:
identify, by the at least one processor, a distance of travel for the trip based on a plurality of geographic positions represented in the trip data;
identify, by the at least one processor, a duration of the trip based on a plurality of timestamps in the trip data;
identify, by the at least one processor, an ambient temperature of an environment of the vehicle for the trip based on temperature data;
identify, by the at least one processor, speed of the vehicle for the trip based on the trip data;
identify, by the at least one processor, acceleration of the vehicle for the trip based on the trip data;
determine, by the at least one processor, energy consumption by the vehicle for the trip as a weighted sum of:
energy loss due to vehicle friction, based on the identified distance of travel;
a total time of the trip, based on the identified duration of the trip;
energy loss due to temperature control of the vehicle, based on a difference between the identified ambient temperature of the vehicle and an optimal temperature, for the duration of the trip;
energy loss due to air resistance, based on the identified speed of the vehicle; and
energy consumption to impart kinetic energy to the vehicle, by integrating only positive acceleration of the vehicle during the trip; and
output the determined energy consumption by the vehicle for the trip.