Device for computing driving parameters which is intended to be installed in a vehicle, the device comprising: - a first computing unit, associated with a given computing power and integrity level; and - a second computing unit, comprising one or more computers, the second computing unit being associated with a computing power which is higher than the computing power associated with the first computing unit and with an integrity level which is lower than the integrity level associated with the first computing unit, the second computing unit being configured to execute one or more computing functions, this providing, for each computing function, an output comprising a computing result and a comparison parameter which is representative of said computing result; the device being characterized in that, in response to the reception of a request to compute a driving parameter, the computing request corresponding to a given computing function, said first computing unit is configured to: - determine a context of execution of said given computing function on said second computing unit; - trigger a first execution, referred to as the nominal execution, of said given computing function, according to said determined context of execution, on said second computing unit, this providing a first output comprising a first result of computing said driving parameter and a first comparison parameter, a first temporal execution parameter being associated with said first comparison parameter; - trigger a second execution, referred to as the redundant execution, of said given computing function, according to said determined context of execution, on said second computing unit, this providing a second output comprising a second result of computing said driving parameter and a second comparison parameter, a second temporal execution parameter being associated with said second comparison parameter; - compare said first and said second comparison parameter, a temporal comparison parameter being associated with the result of said comparison; - determine a computing status of said driving parameter in accordance with a condition depending on the result of the comparison and in accordance with said temporal parameters, said computing status being positive if the two comparison parameters are identical and the temporal parameters are valid. - a first computing unit, associated with a given computing power and integrity level; and - a second computing unit, comprising one or more computers, the second computing unit being associated with a computing power which is higher than the computing power associated with the first computing unit and with an integrity level which is lower than the integrity level associated with the first computing unit, the second computing unit being configured to execute one or more computing functions, this providing, for each computing function, an output comprising a computing result and a comparison parameter which is representative of said computing result; - determine a context of execution of said given computing function on said second computing unit; - trigger a first execution, referred to as the nominal execution, of said given computing function, according to said determined context of execution, on said second computing unit, this providing a first output comprising a first result of computing said driving parameter and a first comparison parameter, a first temporal execution parameter being associated with said first comparison parameter; - trigger a second execution, referred to as the redundant execution, of said given computing function, according to said determined context of execution, on said second computing unit, this providing a second output comprising a second result of computing said driving parameter and a second comparison parameter, a second temporal execution parameter being associated with said second comparison parameter; - compare said first and said second comparison parameter, a temporal comparison parameter being associated with the result of said comparison; - determine a computing status of said driving parameter in accordance with a condition depending on the result of the comparison and in accordance with said temporal parameters, said computing status being positive if the two comparison parameters are identical and the temporal parameters are valid.