Circuit arrangement for controlling an injection valve
US8555859B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Dec 13, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2058
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A circuit arrangement controls at least one injection valve, in particular a solenoid injection valve, for an internal combustion engine. The circuit includes a supply potential connection, a reference potential connection; one or more solenoids; a controllable voltage boosting circuit for generating from the first voltage a second voltage that is higher than the first voltage. The voltage boosting circuit is connected at a first input to the supply potential connection and at a first output to the solenoids by means of a respective first controllable semiconductor switching element. A control circuit is connected at least to a respective first semiconductor switching element and the voltage boosting circuit. The control circuit applies the first or the second voltage to the first coil connection of exactly one solenoid depending on an actuation state of one of the injection valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.