Thermostat means adaptively controlling the amount of overshoot or undershoot of space temperature

Patent · Tue Jun 16 00:00:00 EDT 1987

OSTI ID:6381635

Beckey, T J

This patent describes a clock thermostat adaptively controlling the amount of overshoot or undershoot of space temperature due to changes in the current temperature setpoint of the thermostat means, including: microcomputer means including real time clock and memory; data input means connected to the microcomputer to input a sequence of desired heat and cool control temperature setpoints and times for a desired temperature control by the thermostat; temperature sensor including connection to monitor temperature at the thermostat means; connection means connected to microcomputer to communicate a temperature at sensor means to the microcomputer; thermostat means further including output switch adapted to control heating and cooling equipment by thermostat means; microcomputer means and memory means including overshoot-undershoot correction program means which is operable to adjust a ramprate slope of a current temperature setpoint of thermostat means; overshoot-undershoot correction program and the memory means providing a ramprate slope that reduces an overshoot-undershoot of space temperature due to a change in current temperature setpoint; and overshoot-undershoot correction program means and memory means creating a new ramprate slope after a temperature setpoint change to progressively adjust the ramprate slope of the thermostat to limit the amount of overshoot-undershoot of the space temperature to an acceptable level.

• Assignee: Honeywell Inc., Minneapolis, MN
• Patent Number(s): US 4674027
• OSTI ID: 6381635
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
AIR CONDITIONING
BUILDINGS
COMPUTER CODES
COMPUTERIZED CONTROL SYSTEMS
COMPUTERS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
CORRECTIONS
ELECTRONIC CIRCUITS
EQUIPMENT
HEATING
MEMORY DEVICES
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
SPACE HEATING
TEMPERATURE CONTROL
THERMOSTATS