CHARGE ALGORITHM FOR BATTERY PROPELLED ELEVATOR
First Claim
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1. A method for recovering energy associated with the operation of an elevator, comprising:
- determining, by a processing device, a battery charging current;
estimating a state of charge (SoC) of at least one battery based on charging current acceptance capability; and
causing, by the processing device, a charging of the at least one battery to within a threshold amount of 100% of SoC to recover energy associated with elevator operation.
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Abstract
Embodiments are directed to recovering energy associated with the operation of an elevator, by: determining, by a processing device, a battery charging current, estimating a state of charge (SoC) of at least one battery based on charging current acceptance capability, and causing, by the processing device, a charging of the at least one battery to within a threshold amount of 100% of SoC to recover energy associated with elevator operation.
111 Citations
20 Claims
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1. A method for recovering energy associated with the operation of an elevator, comprising:
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determining, by a processing device, a battery charging current; estimating a state of charge (SoC) of at least one battery based on charging current acceptance capability; and causing, by the processing device, a charging of the at least one battery to within a threshold amount of 100% of SoC to recover energy associated with elevator operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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at least one processor; and memory having instructions stored thereon that, when executed, cause the apparatus to; determine that it has been greater than a first threshold amount of time since an elevator was last run; cause a charger to be turned on to charge a battery of the elevator; setting a charging voltage according to at least one of battery temperature and ambient temperature; determine that it has been greater than a second threshold amount of time since the elevator was last run and application of the charging voltage; determine that a current associated with the charger is greater than a first threshold current based on one or more battery characteristics; and cause the charger to be maintained turned on to charge the battery. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method comprising:
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determining that an elevator has not been operated for an amount of time greater than a first threshold; determining a temperature associated with a battery of the elevator based on applying a testing charging voltage to the battery via a charger, wherein a value of the charging voltage is based on the temperature; determining that it has been greater than a second threshold amount of time since the elevator was last run and application of charging voltage; determining that a current associated with the charger is greater than a first threshold current and maintaining the testing voltage turned on as charging voltage, wherein a value of the charging voltage is based on the temperature; determining that the elevator has not been operated for an amount of time greater than the second threshold; determining that the current associated with the charger is less than a second threshold current; and removing the charging voltage from the battery. - View Dependent Claims (20)
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Specification