Drive system and method for vehicle employing multiple electronic motors
US11660968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2021 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | Oct 18, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A drive system with one or more electrically driven axles, a transmission subsystem, which is drivingly coupled to a drive gearbox of each of the electrically driven axles, first and second motors, which are each drivingly coupled to the transmission subsystem and have different motor characteristics, and a controller. The drive gearbox of each axle transmits rotary power to an associated set of vehicle wheels. The controller controls the first and second motors responsive to at least a torque request. Over a significant portion of the operating range of the drive system, the controller is configured to vary the respective magnitudes of the rotary power provided by the first and second motors to satisfy the torque request in a manner that maximizes a combined efficiency of the motors in a predetermined manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.