Description And Operation: Operation

The KIN replaces the conventional key and ignition switch with a momentary button press and a wireless electronic FOB. When the operator presses the GO button the FOB is interrogated wirelessly. If the FOB is recognized as belonging to the vehicle and in the vehicle interior, the system allows the ignition state of the vehicle to be changed by the vehicle operator between the LOCK, ACCESSORY, RUN, and START ignition states. This causes changes in the ignition status signals on the vehicle's Controller Area Network Chassis (CAN C) data bus networks and hardwired outputs controlled by the starting system master. As far as the vehicle's ignition system is concerned, keyless go control is indiscernible from legacy conventional control that uses a rotational switch and key. The K-line and the Start/Stop button hardwire signals are used in tandem to determine the Start/Stop button states.

KIN Function:

• When the GO button on the KIN is pressed, the RFHM is signaled with "request to start".
• The RFHM then uses the LF antennas to communicate with the FOB and confirms that the FOB is located inside the vehicle.
• Once located, the FOB's response is evaluated by the RFHM to determine if the person pushing on the GO button is in fact the owner. This process completes 'FOB authentication'.
• The RFHM needs to verify the brake sensor input, for starting. When the brake is applied, the brake active sense signal is generated by the Body Control Module (BCM) via a CAN bus message.
• Once successfully completed, the RFHM next sends the BCM the ignition switch position, which then allows the 'request to start' command.

KIN illumination:

• The KIN receives K-Line communication from the Radio Frequency Hub Module (RFHM) to illuminate the ignition position LEDs associated with the current ignition position.
• The RFHM controls dimming based on the following bus messages from the BCM: sun sensors daylight data provided by the Heating Ventilation Air Conditioning (HVAC) module and panel illumination position which is the thumb wheel next to the headlamp switch.

KEY FOB NOT DETECTED 

If the FOB battery has a low battery level or there is interference that jams the signal from the FOB (e.g. FOB is placed next to or in close proximity of electronic badges, cell phones, metal objects) which prevents the RFHM and the KIN from performing the normal Radio Frequency (RF) based Keyless Go authentication, the KIN module has a back-up means to perform the FOB authentication:

• Press the front of the FOB on the center of the Start/Stop button, perpendicular to the surface of the button.
• Hold the FOB for 2 Seconds after while pressing the Start/Stop button with it to complete authentication of the FOB.

The back up KIN (START) process includes:

• Press Start/Stop button with the front of the FOB once = Transitions to Accessory
• Press Start/Stop button again = Transitions to Run
• Press Start/Stop button again = Transitions to OFF
• Press Start/Stop button with the front of the FOB once with brake applied = Transition to Start

This is required so as not to strand a customer due to a low power battery issue in the FOB or interference scenario.

After putting the vehicle into P  ark, pressing the KIN's GO button allows the vehicle's engine to be shut off. In an emergency, pressing the GO button continuously for 2 seconds or repeatedly (one hit every 30- 500ms) will cause the engine to shut off when vehicle speed is greater than 5 mph.