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US 9,174,544 B2Granted
Method for charging a battery for supplying power to a drive motor of a motor vehicle
AssigneeRENAULT s.a.s.
InventorsMasato Origuchi, Caroline Marchal
Life of this patent
Estimating the term…
Abstract
A method for charging a battery, including: determining a final state of charge and a final temperature of the battery; and calculating charging power and/or cooling power required to reach the two final values within a minimum amount of time.
Claims13
A battery charger, comprising:
- an electrical charging device which delivers a charging power;
- a cooling device, which delivers a cooling power;
- an input for receiving a final state of charge and a final temperature of the battery;
- and
- a control unit which computes the charging power and/or the cooling power necessary for reaching the two final values in a minimum time by considering equations
- Δ
-
-
- T
- bal
- =
- T
- end
- -
- T
- ini
- =
- (
- Q
- bat
- -
- P
- cool
- )
- C
- p
- ×
- t
- ch
- (
- 1
- )
- t
- ch
- =
- Δ
-
-
- SOC
- ×
- E
- bat
- P
- ch
- (
- 2
- )
- P
- cool
- =
- (
- T
- end
- +
- T
- ini
- 2
- -
- 5
- )
- R
-
-
- th
- (
- 3
- )
- Q
- bat
- =
- R
- bat
-
- (
- P
- ch
- U
- nom
- )
- 2
- (
- 4
- )
- wherein:
- Tini:
- temperature of the battery in each time frame [° C.];
- SOCini:
- state of charge SOC of the battery;
- Cp:
- calorific capacity of the battery [Wh/K];
- Ebat:
- energy of the battery [Wh];
- Rth:
- thermal resistance between the battery and blown air [K/W];
- Rbat:
- electrical resistance of the battery [ohm];
- Ubat:
- voltage of the battery [V];
- unom:
- nominal voltage of the battery;
- Qbat:
- charge of the battery;
- Pcool:
- cooling power during charging [W];
- tch:
- charging time remaining [h];
- Pch:
- charging power [W];
- PCh,max:
- maximum charging power [W],
- wherein the control unit controls the electrical charging device and the cooling device based on the charging power and/or the cooling power computed by the control unit.
108 more elements
A method for charging a battery, comprising:
- determining values of a final state of charge and a final temperature of the battery;
- computing charging power and/or cooling power necessary for reaching the two final values in a minimum time, considering equations:
- Δ
-
-
- T
- bat
- =
- T
- end
- -
- T
- ini
- =
- (
- Q
- bat
- -
- P
- cool
- )
- C
- p
- ×
- t
- ch
- (
- 1
- )
- t
- ch
- =
- ASOC
- ×
- E
- bat
- P
- ch
- (
- 2
- )
- P
- cool
- =
- (
- T
- end
- +
- T
- ini
- 2
- -
- 5
- )
- Rth
- (
- 3
- )
- Q
- bat
- =
- R
- bat
- (
- P
- ch
- P
- ch
- ⋁
- '
- -
- '
-
- nom
-
- )
- 2
- (
- 4
- )
- wherein:
- Tini:
- temperature of the battery in each time frame [° C.];
- SOCini:
- state of charge SOC of the battery;
- Cp:
- calorific capacity of the battery [Wh/K];
- Ebat:
- energy of the battery [Wh];
- Rth:
- thermal resistance between the battery and blown air [K/W];
- Rbat:
- electrical resistance of the battery [ohm];
- Ubat:
- voltage of the battery [V];
- Unom:
- nominal voltage of the battery;
- Qbat:
- charge of the battery;
- Pcool:
- cooling power during charging [W];
- tch:
- charging time remaining [h];
- Pch:
- charging power [W];
- PCh,max:
- maximum charging power [W].
104 more elements
Dependencies are inferred from the claim text.