Method for controlling the temperature of glow plugs
US10280892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2018 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Apr 25, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P19/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling the temperature of glow plugs of a combustion engine is described, wherein all glow plugs are heated up for an engine start by the input of electrical energy according to a profile which is uniformly specified for all glow plugs of the engine, a change in resistance ΔR is ascertained for each of the glow plugs for at least one specified time span, and a target resistance value is calculated for each glow plug from the associated change in resistance ΔR, this value being expected for the glow plug when it has reached its target temperature, and the target resistance value is used to control the temperature of the glow plug to the target temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.