US 12,434,594 B2
Energy management device and method for providing an estimated energy value for an energy store
Klaus Pochner, Rüsselsheim am Main (DE)
Assigned to PSA AUTOMOBILES SA, Poissy (FR)
Appl. No. 18/554,154
Filed by PSA AUTOMOBILES SA, Poissy (FR)
PCT Filed Feb. 23, 2022, PCT No. PCT/EP2022/054479
§ 371(c)(1), (2) Date Oct. 31, 2023,
PCT Pub. No. WO2022/218594, PCT Pub. Date Oct. 20, 2022.
Claims priority of application No. 10 2021 203 610.4 (DE), filed on Apr. 13, 2021.
Prior Publication US 2024/0198849 A1, Jun. 20, 2024
Int. Cl. G01R 31/367 (2019.01); B60L 58/10 (2019.01); G01R 31/387 (2019.01)
CPC B60L 58/10 (2019.02) [G01R 31/387 (2019.01); B60L 2260/52 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An energy management device for an energy storage device, comprising
an energy storage device;
an energy storage management apparatus;
an energy estimation apparatus; and
a range estimation apparatus;
wherein the energy storage management apparatus is adapted to detect and provide a plurality of energy storage parameters present in the energy storage device;
wherein the energy estimation apparatus is adapted to receive the plurality of energy storage parameters and to provide an estimated energy value from the plurality of energy storage parameters;
wherein the energy estimation apparatus selects substantially only electric current parameters from the provided plurality of energy storage parameters;
wherein an electric current parameter is a parameter which has an influence on the electric current flow into and/or out of the energy storage device;
wherein the range estimation apparatus is adapted to convert the estimated energy value into an estimation range;
wherein the range estimation apparatus uses an energy-range curve for converting the estimated energy value into the range, which energy-range curve is represented in electric current parameters;
wherein the energy-range curve has a first and a second curve portion;
wherein the second curve portion of the energy-range curve, which lies in the range of a low energy present in the energy storage device, has been determined with a higher accuracy than the first curve portion of the energy-range curve, which lies in the range of a high energy present in the energy storage device; and
wherein the first curve portion is adapted to the second curve portion such that the energy- range curve forms a continuous curve.