Power system architecture for hybrid electric vehicle
US10913444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jun 7, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved power system architecture for a hybrid electric vehicle includes a power control unit including a motor inverter, a generator inverter, and a DC-to-DC converter, and vehicle power management (VPM) circuitry directly connected to each of the motor inverter, generator inverter, and DC-to-DC converter. In this arrangement, communication timing is greatly reduced, thereby allowing for feedforward control of the motor inverter, generator inverter, and DC-to-DC converter. The feedforward control enables the VPM circuitry to predict current influx or draw by a motor and determine the corresponding currents to provide to or from the generator and battery prior to or simultaneously with the actual current influx or draw by the motor. This improves vehicle dynamics and responsiveness, as well as enables complete recapture of braking currents and eliminates the need for a brake chopper resistor, thereby improving overall vehicle efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.