Methods and systems for coordinating predictive cruise control, engine-off coasting, and hybrid power split

US11718298B2 · kind B2 · utility

Assignee

• Cummins Inc. · US

Inventors

• Rohinish Gupta · Columbus, US
• Jonathan A. Dickson · Columbus, US
• Kenneth M. Follen · Greenwood, US
• Apurva Arvind Chunodkar · Greenwood, US
• Arun Prakash Thunga Gopal · Columbus, US
• Manik Narula · Columbus, US

Key dates

• Filing date: Oct 21, 2020
• Grant date: Aug 8, 2023
• Expiry date: Apr 10, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/62
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The enclosed disclosure relates to hybrid vehicles and systems with an engine, a drivetrain with a clutch and a transmission, an electric machine, and a controller. The controller receives lookahead information within a lookahead window and present state information of the hybrid vehicle. The controller determines a predicted coasting opportunity exceeding a predetermined threshold within the lookahead window and determines a cruise control reference speed, a power split between the engine and the electric machine, and a timing of enabling engine-off coasting during the coasting opportunity. The controller deactivates the engine and disengages the clutch at a start of the coasting opportunity when the engine-off coasting is enabled.