Vehicle load information system to determine road slope and load when trailer is added to vehicle

A method identifies, for a vehicle, a low friction surface from a road surface with a slope. With the vehicle at standstill, the vehicle ignition is switched on. A normal load for the vehicle is calculated. It is determined if the vehicle is moving, and if the vehicle is moving, a vehicle load is ca...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FRANKFURTH JOSHUA, YE BO, MATOY ERIC A, SCHNEIDER MICHAEL G
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A method identifies, for a vehicle, a low friction surface from a road surface with a slope. With the vehicle at standstill, the vehicle ignition is switched on. A normal load for the vehicle is calculated. It is determined if the vehicle is moving, and if the vehicle is moving, a vehicle load is calculated using suspension information from the vehicle. A road slope angle is calculated based on the calculated vehicle load and calculated normal load. A normal slope angle is calculated and is compared to the calculated road slope angle to determine if the vehicle is on a low friction surface or on a sloped surface. In accordance with another aspect of an embodiment, a method determines whether a trailer is coupled to a vehicle.