Power-based electric turbocharger boost control
US12104547B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2023 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Oct 2, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0402
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system and method for controlling an engine comprising an electric turbocharger are presented. The system comprises a wastegate valve configured to control a pressure of exhaust gas in an exhaust system of the engine at a turbine of the electric turbocharger. A controller obtains a set of parameters that each affect exhaust gas energy; using the set of parameters: (i) determines a target mass flow into the engine and a target boost for the turbocharger to achieve a torque request; (ii) determines a target power for a compressor of the turbocharger to achieve the target engine mass flow and the target turbocharger boost; (iii) determines an electric turbocharger motor power target; (iv) determines, based on the target power for the compressor and the electric turbocharger motor power target, a target pressure ratio and a target mass exhaust flow for the turbine of the electric turbocharger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.