System and method for determining whether a vehicle operator has an impaired cognitive state

US7468673B2 · kind B2 · utility

Assignee

• Delphi Technologies · US

Inventors

• Michel F. Sultan · Troy, US
• David K. Lambert · South Jordan, US
• Laci J. Jalics · Traverse City, US
• Dale L. Partin · Sterling Heights, US
• Harry Zhang · Chandler, US
• Gerald J. Witt · Carmel, US

Key dates

• Filing date: Jun 23, 2006
• Grant date: Dec 23, 2008
• Expiry date: Jun 22, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2556/50
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system and a method for determining whether an operator of a vehicle has an impaired cognitive state are provided. The method includes determining an intoxication indication value indicative of whether the operator is intoxicated, utilizing a controller. The method further includes determining a drowsiness indication value indicative of whether the operator is drowsy, utilizing the controller. The method further includes determining a fatigue indication value indicative of whether the operator is fatigued, utilizing the controller. The method further includes determining a cognitively impaired indication value based on at least one of the intoxication indication value, the drowsiness indication value, and the fatigue indication value. The method further includes generating a signal indicating that the operator is cognitively impaired when the cognitively impaired indication value is greater than a threshold cognitively impaired indication value, utilizing the controller.