Axle torque based powertrain braking with range selection for coordinated torque control (CTC)
US7222012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | May 26, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/1022
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A powertrain braking system for a vehicle includes an powerplant that can be regulated to provide a desired powerplant torque and a transmission that transfers the desired powerplant torque at one of a plurality of gear ratios to provide a desired axle torque. A control module calculates an axle torque command based on a powertrain braking request and determines a shift command based on the powertrain braking request. The control module controls the powerplant based on the axle torque command and the transmission based on the shift command to achieve a desired vehicle deceleration rate that corresponds with the powertrain braking request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.