ENERGY MANAGEMENT OF CLOTHES DRYER APPLIANCE

• US 20100174668A1
• Filed: 09/15/2009
• Published: 07/08/2010
• Est. Priority Date: 09/15/2008
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: FINCH, MICHAEL F., Helms, Chad Michael, Kappler, Jerrod Aaron, Besore, John K., Root, Steven Keith, Drake, Jeff Donald, Watson, Eric K., Venkatakrishnan, Natarajan, Franks, Darin, Wiseman, Joshua S.
• Application Number:
  US12/559,684
• Publication Number:
  US 20100174668A1
• Time in Patent Office: Days
• US Class Current: 705/412
• CPC Class Codes: F25D 21/04 Preventing the formation of frost or condensate
• CPC Class Codes: G05B 13/02 electric
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00017 using optical fiber
• CPC Class Codes: H02J 13/00024 by means of mobile telephony
• CPC Class Codes: H02J 13/00026 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• CPC Class Codes: H02J 2310/66 one of the loads acting as master and the other or others acting as slaves
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 Home appliances
• CPC Class Codes: Y04S 20/244 the home appliances being or involving heating ventilating and air conditioning [HVAC] units
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses
• CPC Class Codes: Y04S 40/126 using wireless data transmission
• CPC Class Codes: Y04S 50/10 : Energy trading, including energy flowing from end-user application to grid

Abstract

A clothes dryer is provided comprising one or more power consuming functions and a controller in signal communication with an associated utility. The controller can receive and process a signal from the associated utility indicative of current cost of supplied energy. The controller operates the clothes dryer in one of a normal operating mode and an energy savings mode based on the received signal. The controller is configured to change the power consuming functions by adjusting one or more of an operation schedule, an operation delay, an operation adjustment, and a selective deactivation of at least one of the one or more power consuming functions to reduce power consumption of the clothes dryer in the energy savings mode.

Claims

1. A clothes dryer comprising:

one or more power consuming features/functions including at least one of a cabinet for receiving articles to be dried, a fan for drawing air into the cabinet and circulating air, and a heater for heating air drawn into the cabinet; and

,

a controller configured to receive and process a signal indicative of current state of an associated utility, the controller operating the clothes dryer in one of a plurality of operating modes, including at least a normal operating mode and an energy savings mode, in response to the received signal, the controller being configured to change the power consuming features/functions by adjusting one or more of an operation schedule, an operation delay, an operation adjustment, and a selective deactivation of at least one of the one or more power consuming features/functions to reduce power consumption of the clothes dryer in the energy savings mode.

2. The clothes dryer according to claim 1, wherein the operation delay is selected from the group consisting of a delay in start time, an extension of time to the delay start, stopping an existing cycle and delaying a restart, finishing an existing cycle and delaying a restart, and stopping after more than one cycle and delaying a restart.

3. The clothes dryer according to claim 2, wherein the stopping after more than one cycle occurs after at least one heat cycle duration.

4. The clothes dryer according to claim 1, wherein the operation schedule comprises a user interface that gives a user the ability to select which of the one or more power consuming clothes dryer functions are scheduled by the clothes dryer control system, that receives a zip code entry which corresponds to a time of use schedule of a utility company from which the clothes dryer control system can determine on-peak mode hours and off-peak mode hours;

that uses a time versus day of the week schedule input method;

that receives a rate signal directly from the utility advising of the current rate; and

schedules activation of clothes dryer to off-peak mode hours.

5. The clothes dryer according to claim 4, wherein the operation adjustment adjusts the clothes dryer functions during off-peak mode hours.

6. The clothes dryer according to claim 5, wherein the operation adjustment is selected from the group consisting of a reduction in target temperature in one or more cycles, a disablement of one or more heaters in one or more cycles, reduction in power to one or more heaters, a switch from a selected cycle to a reduced power consumption cycle, a reduction in a duration of cycle time in one or more cycles, a disablement of one or more cycles, and a skipping of one or more cycles.

7. The clothes dryer according to claim 1, wherein the operation adjustment comprises a user interface that gives a user the ability to select which of the one or more power consuming clothes dryer functions are used by the clothes dryer control system, that receives a zip code entry which corresponds to a time of use schedule of a utility company from which the clothes dryer control system can determine on-peak mode hours and off-peak mode hours;

that uses a time versus day of the week schedule input method;

that receives a rate signal directly from the utility advising of the current rate; and

adjusts the clothes dryer functions during on-peak mode hours.

8. The clothes dryer according to claim 7, wherein the operation adjustment is selected from the group consisting of a reduction in target temperature in one or more cycles, a disablement of one or more heaters in one or more cycles, reduction in power to one or more heaters, a switch from a selected cycle to a reduced power consumption cycle, a reduction in a duration of cycle time in one or more cycles, a disablement of one or more cycles, and a skipping of one or more cycles.

9. The clothes dryer according to claim 7, wherein the operation delay is selected from the group consisting of a delay in start time, an extension of time to the delay start, stopping an existing cycle and delaying a restart, finishing an existing cycle and delaying a restart, and stopping after more than one cycle and delaying a restart.

10. The clothes dryer according to claim 1, wherein the operation adjustment is selected from the group consisting of a reduction in target temperature in one or more cycles, a disablement of one or more heaters in one or more cycles, reduction in power to one or more heaters, a switch from a selected cycle to a reduced power consumption cycle, a reduction in a duration of cycle time in one or more cycles, a disablement of one or more cycles, and a skipping of one or more cycles

11. The clothes dryer according to claim 1, wherein the selective deactivation includes a user manual override function wherein the user can override any adjustments to one or more of the power consuming functions.

12. The clothes dryer according to claim 1, further comprising a display communicating activation of the energy savings mode.

13. The clothes dryer according to claim 12, wherein the energy savings mode display includes a message selected from the group consisting of ‘

“

ECO”

, “

Eco”

, “

EP”

, “

ER”

, “

CP”

, “

CPP”

, “

DR”

, and “

PP”

.

14. A clothes dryer control method, comprising:

a) determining a state for an associated energy supplying utility, the utility state being indicative of at least a peak demand period or an off-peak demand period;

b) operating the clothes dryer in a normal mode during the off-peak demand period;

c) operating the clothes dryer in an energy savings mode during the peak demand period;

d) scheduling, delaying, adjusting and/or selectively deactivating any number of one or more power consuming features/functions of the clothes dryer to reduce power consumption of the clothes dryer in the energy savings mode; and

,

e) returning to the normal mode after the peak demand period is over.

15. The clothes dryer control method according to claim 14, wherein the delaying is selected from the group consisting of a delay in start time, an extension of time to the delay start, stopping an existing cycle and delaying a restart, finishing an existing cycle and delaying a restart, and stopping after more than one cycle and delaying a restart.

16. The clothes dryer control method according to claim 15, wherein the adjusting of the functions of the clothes dryer is selected from the group consisting of a reduction in target temperature in one or more cycles, a disablement of one or more heaters in one or more cycles, reduction in power to one or more heaters in one or more cycles, a switch from a selected cycle to a reduced power consumption cycle, a reduction in a duration of cycle time in one or more cycles, a disablement of one or more cycles, and a skipping of one or more cycles.

17. The clothes dryer control method according to claim 14, wherein the scheduling comprises a user interface that gives a user the ability to select which of the one or more power consuming clothes dryer functions are scheduled by the clothes dryer control system, that receives a zip code entry which corresponds to a time of use schedule of a utility company from which the clothes dryer control system can determine on-peak mode hours and off-peak mode hours;

that uses a time versus day of the week schedule input method;

that receives a rate signal directly from the utility advising of the current rate; and

schedules activation of clothes dryer to off-peak mode hours.

18. The clothes dryer control method according to claim 17, wherein the adjusting of the functions comprises a user interface that gives a user the ability to select which of the one or more power consuming clothes dryer functions are used by the clothes dryer control system and adjusts the clothes dryer functions during off-peak hours.

19. The clothes dryer control method according to claim 18, wherein the adjusting of the functions of the clothes dryer is selected from the group consisting of a reduction in target temperature in one or more cycles, a disablement of one or more heaters in one or more cycles, reduction in power to one or more heaters in one or more cycles, a switch from a selected cycle to a reduced power consumption cycle, a reduction in a duration of cycle time in one or more cycles, a disablement of one or more cycles, and a skipping of one or more cycles

20. The clothes dryer control method according to claim 14, wherein the scheduling comprises a user interface that gives a user the ability to select which of the one or more power consuming clothes dryer functions are scheduled by the clothes dryer control system, that receives a zip code entry which corresponds to a time of use schedule of a utility company from which the clothes dryer control system can determine on-peak mode hours and off-peak mode hours;

that uses a time versus day of the week schedule input method;

that receives a rate signal directly from the utility advising of the current rate; and

adjusts the clothes dryer functions during on-peak mode hours.

21. The clothes dryer control method according to claim 20, wherein the adjusting of the functions of the clothes dryer is selected from the group consisting of a reduction in target temperature in one or more cycles, a disablement of one or more heaters in one or more cycles, reduction in power to one or more heaters in one or more cycles, a switch from a selected cycle to a reduced power consumption cycle, a reduction in a duration of cycle time in one or more cycles, a disablement of one or more cycles, and a skipping of one or more cycles.

22. The clothes dryer control method according to claim 21, wherein the delaying is selected from the group consisting of a delay in start time, an extension of time to the delay start, stopping an existing cycle and delaying a restart, finishing an existing cycle and delaying a restart, and stopping after more than one cycle and delaying a restart.

23. The clothes dryer control method according to claim 14, wherein the energy signal has an associated energy cost and wherein the controller is configured to override the operating mode of the clothes drying appliance based on a user selected targeted energy cost;

wherein if current energy cost exceeds the user selected cost, the controller operates the appliance in the energy savings mode; and

,

wherein if the current energy cost is less than the user selected cost, the controller operates the appliance in the normal operating mode.

24. The clothes dryer control method according to claim 14, further comprising a display communicating activation of the energy savings mode.

25. The clothes dryer control method according to claim 24, wherein the energy savings mode display includes a message selected from the group consisting of ‘

“

ECO”

, “

Eco”

, “

EP”

, “

ER”

, “

CP”

, “

CPP”

, “

DR”

, and “

PP”

.

26. The clothes dryer control method according to claim 14, further comprising:

determining energy cost associated with the utility state;

displaying current cost of operating the clothes dryer appliance;

displaying current cost of supplied energy; and

,

alerting a user of a peak demand period.

27. A clothes dryer comprising:

a cabinet for receiving articles to be dried;

a fan for drawing air into the cabinet and circulating air through the cabinet;

a heater for heating air drawn into the cabinet; and

,

a controller configured to control energization of the drive system, fan and heater to selectively implement a plurality of power consuming cycles, and to receive and process an energy signal, the signal having a first state indicative of a utility peak demand period and a second state indicative of a utility off-peak demand period, the controller operating the clothes dryer in one of an energy savings mode and a normal operating mode based on the received signal being in the first and second states respectively, the controller being configured to at least one of selectively delay or alter one or more of the power consuming cycles to reduce power consumption of the clothes dryer in the energy savings mode.

28. The clothes dryer of claim 27, wherein the energy signal has an associated energy cost and further including a display communicating current cost of energy and current cost of operating the clothes washer.