Patent ID: 8160768

Claim:
A device for determining a value of a binary item of a system of a motor vehicle, the binary item being representative of a parameter of the system, delivered in a redundant manner by two sensors, the binary item being equal to a first or a second value when the parameter lies respectively in a first or a second range, the first and second ranges being separated by a transient range in which the binary item transitions between the first value and the second value, the device comprising: decision means that receives a first binary item signal from a first sensor and a second binary item signal from a second sensor, the decision means comprising a state machine, including a memory or processor, configured to assign, when one of the sensors delivers a binary item devoid of any transition of value because of a malfunction, the first or second value as the binary item representative of the parameter of the system, wherein a value of the first binary item signal transitions between the first value and the second value and a value of the second binary item signal transitions between the first value and the second value, and wherein the state machine sets the binary item of the system equal to the value of the first or second binary item signal that had the most recent transition.