Temperature control system
US10983541B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2016 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Aug 21, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2225/12
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method of generating a control signal for a temperature control system is disclosed. The control signal has one of an “on” state in which the temperature control system is to be activated and an “off” state in which the temperature control system is to be deactivated. The method comprises calculating a temperature error measure in dependence on a target temperature and a current temperature value. A rate of temperature change in the environment is determined and used to set a variable error threshold. The method switches between a continuous “on” signal mode and a pulse-width-modulation (PWM) mode, in which the output signal comprises alternating “off” and “on” periods in accordance with a PWM pattern. The switch occurs in dependence on the temperature error measure and the variable error threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.