The convenience of remote keyless entry is now almost ubiquitous and most drivers expect to be able to operate the locking functions, alarm system and often the power windows or exterior lighting of their vehicle via their RF key fob.

The availability of vehicle data on internal networks and better communications technology that allows data to be transmitted from the car has enabled the potential for the humble key fob to become an enhanced user interface. Drivers could be checking the status of their fuel, tyre pressure, cabin temperature and sending simple operating commands to run the air conditioning, pre-program the navigation system and start the engine. All of these commands and other information has been demonstrated by the leading suppliers and the first steps towards enhanced key fob production have already been made by a number of vehicle manufacturers.

The main barrier towards significant change is the trade-off between battery life and the power requirements of improved displays and communications. The fundamental keyless entry functions must not be affected by drivers using enhanced features and drivers would not accept constant recharging for a device that they are accustomed to using continuously. Existing devices prove that getting data to the key fob is not an issue, but allowing the driver to view it or use it causes concerns.

Suppliers are therefore looking at innovations such as low power displays, dual power supplies or acting only as a gateway module and utilising smartphone applications for display and control. SBD predict that based on the latest advances, drivers will be enjoying significantly enhanced key fob functionality on their vehicle within the next 5 years.

A new report from SBD looks at the latest vehicle developments from Audi, BMW, GM, VW and Volvo as well as the latest prototype products from Continental, Delphi, Hella, Marquardt and Valeo. It explains the technologies under consideration and the types of functionality that can be expected.