METHOD AND SYSTEM FOR VEHICLE SPEED CONTROL

Methods are provided for controlling a vehicle speed during a downhill travel. Based on the estimated grade of the downhill travel and further based on an input received from the operator, different combinations of an engine braking torque and a regenerative braking torque are used to maintain the v...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WARNER MATTHEW ALLEN, MARTIN DOUGLAS RAYMOND, SYED FAZAL URRAHMAN, BOESCH MATHEW ALAN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:Methods are provided for controlling a vehicle speed during a downhill travel. Based on the estimated grade of the downhill travel and further based on an input received from the operator, different combinations of an engine braking torque and a regenerative braking torque are used to maintain the vehicle speed during the downhill travel. A battery rate of charging is also adjusted based on the duration or distance of the downhill travel, as indicated by the operator input.