Motor vehicles, powertrain systems and control logic for the dynamic allocation of fast torque production
US11241967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2019 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Apr 18, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Presented are vehicle powertrains and control logic for provisioning intelligent fast-torque output, methods for making/using such systems, and electric-drive vehicles with dynamically allocated fast-torque production. A method of controlling torque output of a vehicle powertrain includes a vehicle controller receiving sensor data and determining therefrom maximum and minimum motor torque capacities of a traction motor. The controller calculates the traction motor's maximum and minimum effective motor capacities based on a previous motor torque command and the maximum and minimum torque capacities, respectively. The controller then determines if a negative of the crankshaft torque reserve is: (1) greater than the minimum effective motor capacity; and (2) less than the maximum effective motor capacity. If (1) or (2) is true, an engine spark torque command is set equal to an air torque spark value, and the controller commands an engine assembly to modulate its torque output based on the spark torque command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.