Shift management in model predictive based propulsion system control
US10661804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2018 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Aug 25, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/1083
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A propulsion system, control system, and method use model predictive control systems to generate a plurality of sets of possible command values and determine a cost for each set of possible command values. The set of possible command values that has the lowest cost is determined and defined as a selected set of command values. In some circumstances, the MPC-determined command value may be replaced by another transmission ratio command based on override inputs. Minimum and maximum transmission ratios are determined based on the override inputs, and a constrained (or arbitrated) transmission ratio is determined therefrom. The constrained or arbitrated transmission ratio is used to determine whether to apply an MPC-determined transmission ratio or a transmission ratio based on the arbitrated transmission ratio to determine an ultimate commanded transmission ratio. Pressure(s) are commanded to a transmission pulley assembly, which is configured to implement the ultimate commanded transmission ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.