Wastegate control system for both current-controlled and on/off PWM-type solenoids
US8901768B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2011 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Sep 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A wastegate control system includes a wastegate control module configured to operate in one of a first PWM mode and a second PWM mode. A first transistor includes a control terminal connected to the wastegate control module, a first output terminal, and a second output terminal. A clamp circuit is connected to the first output terminal and the second output terminal of the first transistor. A second transistor includes a control terminal connected to the wastegate control module, a first output terminal, and a second output terminal. A diode has an anode connected to the second output terminal of the first transistor and a cathode connected to the first output terminal of the second transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.