METHOD OF CALCULATING POWER CONSUMPTION OF AIR CONDITIONER

• US 20150170426A1
• Filed: 07/18/2014
• Published: 06/18/2015
• Est. Priority Date: 12/16/2013
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: You, Jae Seok, Hyun, Baro
• Granted Patent: US 9,333,861 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 1/06 using only one supply
• CPC Class Codes: B60L 2200/10 Air crafts
• CPC Class Codes: B60L 2200/18 Buses
• CPC Class Codes: B60L 2200/32 Waterborne vessels
• CPC Class Codes: B60L 2200/36 Vehicles designed to transport cargo, e.g. trucks
• CPC Class Codes: B60L 2240/34 Cabin temperature
• CPC Class Codes: B60L 2240/80 Time limits
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2260/50 by future state prediction
• CPC Class Codes: B60L 2260/52 drive range estimation, e.g. of estimation of available travel distance
• CPC Class Codes: B60L 2260/54 Energy consumption estimation
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A method of calculating power consumption of an air conditioner is provided. The method includes calculating, b a controller, a parameter of an autoregressive moving-average (ARMA) model using past initial temperature and target temperature data of an air conditioner as an input variable of the ARMA model, and past accumulated power consumption data of the air conditioner as an output variable of the ARMA model. The controller is configured to set a current target temperature of the air conditioner and detect an indoor temperature of a vehicle, in which the air conditioner is installed. In addition, the controller is configured to substitute the current target temperature, the indoor temperature, and the parameter to the ARMA model, and predict current accumulated power consumption of the air conditioner.

Claims

1. A method of calculating power consumption of an air conditioner, comprising:

calculating, by a controller, a parameter of an autoregressive moving-average (ARMA) model using past initial temperature and target temperature data of an air conditioner as an input variable of the ARMA model, and past accumulated power consumption data of the air conditioner as an output variable of the ARMA model;

setting, by the controller, a current target temperature of the air conditioner;

detecting, by the controller, an indoor temperature of a vehicle, in which the air conditioner is installed; and

substituting, by the controller, the current target temperature, the indoor temperature, and the parameter to the ARMA model, and predicting current accumulated power consumption of the air conditioner.

2. A method of calculating a distance to empty of a vehicle, comprising:

calculating, by a controller, a past average travel fuel efficiency;

calculating, by the controller, a current travel fuel efficiency;

combining, by the controller, the past average travel fuel efficiency and the current travel fuel efficiency;

calculating, by the controller, a fuel efficiency that corresponds to power consumption of an air conditioner calculated according to the method of calculating power consumption of the air conditioner of claim 1;

calculating, by the controller, a final fuel efficiency by reflecting fuel efficiency that corresponds to the power consumption of the air conditioner to travel fuel efficiency obtained through the combination process; and

calculating, by the controller, a distance to empty (DTE) based on the final fuel efficiency.

3. A system for calculating power consumption of an air conditioner, comprising:

a memory configured to store program instructions; and

a processor configured to execute the program instructions, the program instructions when executed configured to;

calculate a parameter of an autoregressive moving-average (ARMA) model using past initial temperature and target temperature data of an air conditioner as an input variable of the ARMA model, and past accumulated power consumption data of the air conditioner as an output variable of the ARMA model;

set a current target temperature of the air conditioner;

detect an indoor temperature of a vehicle, in which the air conditioner is installed; and

substitute the current target temperature, the indoor temperature, and the parameter to the ARMA model, and predicting current accumulated power consumption of the air conditioner.

4. The system for calculating a distance to empty of a vehicle, wherein the program instructions when executed are further configured to:

calculate a past average travel fuel efficiency;

calculate a current travel fuel efficiency;

combine the past average travel fuel efficiency and the current travel fuel efficiency;

calculate a fuel efficiency that corresponds to power consumption of an air conditioner calculated according to the program instructions for calculating power consumption of the air conditioner of claim 3;

calculate a final fuel efficiency by reflecting fuel efficiency that corresponds to the power consumption of the air conditioner to travel fuel efficiency obtained through the combination process; and

calculate a distance to empty (DTE) based on the final fuel efficiency.

5. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:

program instructions that calculate a parameter of an autoregressive moving-average (ARMA) model using past initial temperature and target temperature data of an air conditioner as an input variable of the ARMA model, and past accumulated power consumption data of the air conditioner as an output variable of the ARMA model;

program instructions that set a current target temperature of the air conditioner;

program instructions that detect an indoor temperature of a vehicle, in which the air conditioner is installed; and

program instructions that substitute the current target temperature, the indoor temperature, and the parameter to the ARMA model, and predicting current accumulated power consumption of the air conditioner.

6. The non-transitory computer readable medium of claim 5, further comprising:

program instructions that calculate a past average travel fuel efficiency;

program instructions that calculate a current travel fuel efficiency;

program instructions that combine the past average travel fuel efficiency and the current travel fuel efficiency;

program instructions that calculate a fuel efficiency that corresponds to power consumption of an air conditioner calculated according to the program instructions for calculating power consumption of the air conditioner of claim 5;

program instructions that calculate a final fuel efficiency by reflecting fuel efficiency that corresponds to the power consumption of the air conditioner to travel fuel efficiency obtained through the combination process; and

program instructions that calculate a distance to empty (DTE) based on the final fuel efficiency.