Two step smart key start system

Abstract

An ignition start system in which authentication of a key is carried out twice, first to activate the ignition switch to allow starting the engine and second at the time prior to moving the vehicle from a parked position. The two step authentication prevents driving off in a car that has been started without having the key for security purposes and also to avoid inconvenient situations that can otherwise occur.

What is claimed is: 
     
         1 . A vehicle, comprising:
 a controller comprising a processor configured to authenticate a code; and   a vehicle movement activator,   
       wherein the processor is configured to perform a first code authentication when the vehicle is started enabling movement of the vehicle out of a park position and a second code authentication enabling movement of the vehicle out of a park position after the vehicle movement activator was previously moved from a drive position to a park position after starting the vehicle. 
     
     
         2 . The vehicle of  claim 1 , wherein the first code authentication comprises detection of a mobile device within a passenger compartment of the vehicle. 
     
     
         3 . The vehicle of  claim 1 , wherein the second code authentication comprises detection of a mobile device within a passenger compartment of the vehicle. 
     
     
         4 . The vehicle of  claim 1 , wherein the second code authentication comprises detection of a mobile device within a passenger compartment of the vehicle when a person is within the passenger compartment of the vehicle. 
     
     
         5 . The vehicle of  claim 1 , wherein the code authenticated for the first code authentication is the same as the code authenticated for the second code authentication. 
     
     
         6 . The vehicle of  claim 1 , wherein the code authenticated for the first code authentication differs from the code authenticated for the second authentication. 
     
     
         7 . The vehicle of  claim 4 , wherein the mobile device communicates wirelessly with a controller. 
     
     
         8 . The vehicle of  claim 1 , wherein the controller prevents operation of a vehicle movement activator when a brake system is activated with the vehicle started in the absence of the second code authentication. 
     
     
         9 . The vehicle of  claim 1 , wherein the vehicle movement activator is inoperable after starting the vehicle and deactivation of a brake system to prevent movement of the vehicle after the vehicle is initially started and the brake system is activated by a user without a mobile device being detected in a vehicle passenger compartment after starting the vehicle.