System and process for limiting operation of a vehicle by an unauthorized or impaired individual

Abstract

System and process for limiting operation of a vehicle by an unauthorized or impaired individual, the system comprising an alcometer configured to estimate the drug influence or content, in particular the blood alcohol content (BAC), of a user from a breath sample, and an interlock subsystem connected to the vehicle's control systems; wherein said alcometer wirelessly communicates with said interlock subsystem to limit operation of the vehicle if the estimated drug influence or content exceeds a predefined threshold; and the process comprising: estimating the drug influence or content, in particular the BAC, of a user from a breath sample with an alcometer; transmitting the estimate wirelessly from the alcometer to an interlock subsystem of the vehicle; and using the interlock subsystem to control the vehicle to limit its operation if the estimate exceeds a predefined threshold.

Dependencies are inferred from the claim text.