Connected car

A connected car is a car that can communicate bidirectionally with other systems outside of the car. This allows the car to share internet access, and hence data, with other devices both inside and outside the vehicle. For safety-critical applications, it is anticipated that cars will also be connected using dedicated short-range communications radios, operating in the FCC-granted 5.9 GHz band with very low latency.

History of connected cars, 1996–present

was the first automaker to bring the first connected car features to market with OnStar in 1996 in Cadillac DeVille, Seville and Eldorado. OnStar was created by GM working with Motorola Automotive. The primary purpose was safety and to get emergency help to a vehicle when there was an accident. The sooner medical helps arrives the more likely the drivers and passengers would survive. A cellular telephone call would be routed to a call center where the agent sent help.
At first, OnStar only worked with voice but when cellular systems added data the system was able to send the GPS location to the call center. After the success of OnStar, many automakers followed with similar safety programs that usually come with a free trial for a new car and then a paid subscription after the trial is over.
Remote diagnostics were introduced in 2001. By 2003 connected car services included vehicle health reports, turn-by-turn directions and a network access device. Data-only telematics were first offered in 2007.
In the summer of 2014, Audi was the first automaker to offer 4G LTE Wi-Fi Hotspots access and the first mass deployment of 4G LTE was by General Motors.
By 2015, OnStar had processed 1 billion requests from customers.
AA plc introduced Car Genie, the first piece of connected car technology in the UK that connects directly to a breakdown service, not only warning of issues with car health, but intervening directly with a phone call to customers to help them prevent a breakdown.
In 2017, European technology start-up Stratio Automotive provides over 10,000 vehicles predictive intelligence enabling fleet operators to better manage and maintain their vehicles.

Types of connectivity

There are 5 ways a vehicle can be connected to its surroundings and communicate with them:
  1. V2I "Vehicle to Infrastructure": The technology captures data generated by the vehicle and provides information about the infrastructure to the driver. The V2I technology communicates information about safety, mobility or environment-related conditions.
  2. V2V "Vehicle to Vehicle": The technology communicates information about speed and position of surrounding vehicles through a wireless exchange of information. The goal is to avoid accidents, ease traffic congestions and have a positive impact on the environment.
  3. V2C "Vehicle to Cloud": The technology exchanges information about and for applications of the vehicle with a cloud system. This allows the vehicle to use information from other, though the cloud connected industries like energy, transportation and smart homes and make use of IoT.
  4. V2P "Vehicle to Pedestrian": The technology senses information about its environment and communicates it to other vehicles, infrastructure and personal mobile devices. This enables the vehicle to communicate with pedestrians and is intended to improve safety and mobility on the road.
  5. V2X "Vehicle to Everything": The technology interconnects all types of vehicles and infrastructure systems with another. This connectivity includes cars, highways, ships, trains and airplanes.

    Categories of applications

Applications can be separated into two categories:
  1. Single vehicle applications: In-car content and service applications implemented by a single vehicle in connection with a cloud or backoffice.
  2. Cooperative safety and efficiency applications: they provide connectivity between vehicles directly have to work cross-brand and cross-borders and require standards and regulation. Some may be convenience applications, others safety, which may require regulation.
Examples include, amongst others:
  1. Single-vehicle applications: concierge features provided by automakers or apps alert the driver of the time to leave to arrive on time from a calendar and send text message alerts to friends or business associates to alert them of arrival times such as BMW Connected NA that also helps find parking or gas stations. The European eCall would be an example of a single vehicle safety application that is mandatory in the EU.
  2. Cooperative safety-of-life and cooperative efficiency: forward collision warning, lane change warning/blind spot warning, emergency brake light warning, intersection movement assist, emergency vehicle approaching, road works warning, automatic notification of crashes, notification of speeding and safety alerts.
The connected car segment can be further classified into 8 categories.
Current automobiles entail embedded navigation systems, smartphone integration and multimedia packages. Typically, a connected car made after 2010 has a head-unit, in car entertainment unit, in-dash system with a screen from which the operations of the connections can be seen or managed by the driver. Types of functions that can be made include music/audio playing, smartphone apps, navigation, roadside assistance, voice commands, contextual help/offers, parking apps, engine controls and car diagnosis.
On January 6, 2014, Google announced the formation of the Open Automotive Alliance a global alliance of technology and auto industry leaders committed to bringing the Android platform to cars starting in 2014. The OAA includes Audi, GM, Google, Honda, Hyundai and Nvidia.
On March 3, 2014, Apple announced a new system to connect iPhone 5/5c/5S to car infotainment units using iOS 7 to cars via a Lightning connector, called CarPlay.
Android Auto was announced on June 25, 2014 to provide a way for Android smartphones to connect to car infotainment systems.
Increasingly, connected cars are taking advantage of the rise of smartphones, and apps are available to interact with the car from any distance. Users can unlock their cars, check the status of batteries on electric cars, find the location of the car, or remotely activate the climate control system.
Innovations to be introduced until 2020 include the full integration of smartphone applications, such as the linkage of the smartphone calendar, displaying it on the car's windshield and automatic address searches in the navigation system for calendar entries. In the longer term, navigation systems will be integrated in the windshield and through augmented reality project digital information, like alerts and traffic information, onto real images from the driver's perspective.
Near-term innovations regarding Vehicle Relationship Management entail advanced remote services, such as GPS tracking and personalized usage restrictions. Further, maintenance services like over-the-air tune-ups, requiring the collaboration of car dealers, OEMs and service centers, are under development.
Despite various market drivers there are also barriers that have prevented the ultimate breakthrough of the connected car in the past few years. One of these is the fact that customers are reluctant to pay the extra costs associated with embedded connectivity and instead use their smartphones as solution for their in-car connectivity needs. Because this barrier is likely to continue, at least in the short-term, car manufacturers are turning to smartphone integration in an effort to satisfy consumer demand for connectivity.

Cooperative safety-of-life and efficiency

These services relate to Advanced Driver-Assistance Systems, that depend on the sensory input of more than one vehicle and enable instant reaction through automatic monitoring, alerting, braking and steering activities. They depend on instant vehicle-to-vehicle communication, as well as infrastructure, functioning across brands and national borders and offering cross-brand and cross-border levels of privacy and security. The US National Highway Traffic Safety Administration for that reason has argued for regulation in its Advance Notice of Proposed Rulemaking on V2V Communication and argued the case in US Congress. NHTSA began the rule-making process on December 13, 2016, proposing to mandate dedicated short-range communications technology in new light vehicles. Under this proposed rule, vehicles would broadcast a defined data packet, the "basic safety message" up to ten times per second, indicating vehicle location, heading, and speed. In March, 2017, GM became the first US automaker to provide DSRC as standard equipment on a production automobile, the Cadillac CTS. The US also has appropriate standards – IEEE 802.11p – and frequency rules in place. In Europe a frequency is harmonised for transport safety and a harmonised standard, called ETSI ITS-G5, are in place. In the EU there is no push to oblige vehicle manufacturers to introduce connect. Discussions about a regulatory framework for privacy and security are ongoing.
Technologically speaking cooperative applications can be implemented. Here the regulatory framework is the main obstacle to implementation, questions like privacy and security need to be addressed. British weekly "The Economist" even argues that the matter is regulatory driven.


The necessary hardware can be divided into built-in or brought-in connection systems. The built-in telematics boxes most commonly have a proprietary internet connection via a GSM module and are integrated in the car IT system. Although most connected cars in the United States use the GSM operator AT&T with a GSM SIM such as the case with Volvo, some cars such as the Hyundai Blue Link system utilizes Verizon Wireless Enterprise, a non-GSM CDMA operator.
Most brought-in devices are plugged in the OBD port for electrification and access to vehicle data and can further be divided into two types of connection:
All forms of hardware have typical use cases as drivers. The built-in solutions were mostly driven by safety regulations in Europe for an automated Emergency Call. The brought-in devices usually focus on one customer segment and one specific use case.


The data provided by greater vehicle connectivity is impacting the car insurance industry. Predictive-modeling and machine-learning technologies, as well as real-time data streaming, providing among others information on driving speed, routes and time, are changing insurers' doing-of-business. Early adopters have begun to adjust their offering to the developments in the automotive industry, leading them to transition from being pure insurance product provider to becoming insurance-service hybrids.
Progressive, for example, has introduced its usage-based-insurance program, Snapshot, in 2008, which takes into account driving times and ability. The data gathered through an onboard diagnostics device allows the company to perform further personal and regional risk assessments.
Another innovation being tested in the insurance industry regards telematics devices, which transmit vehicle and driver data through wide-area networks and are subsequently used to influence driving behavior, for legal purposes and the identification of fraudulent insurance claims. Further applications are dynamic risk profiles and improved customer segmentation.
Future services include coaching on driving skills for fuel efficiency and safety reasons, the prediction of maintenance needs and providing advise to car owners regarding the best time to sell their car.


The following trends are strengthening the shift towards a fully developed connected cars industry, changing the concept of what is understood as a car and what are its functions.
Technological innovation in the field of connectivity is accelerating. High-speed computers help make the car aware of its surroundings, which can transform manoeuvring a self-driving vehicle an increasing reality.
There are initiatives to use ethernet technology to connect the sensors that allow for advanced driving assistance systems. Through the ethernet, network speed inside the vehicle can increase from one megabit to gigabits. Further, ethernet uses switches that allow connections to any number of devices, reducing the amount of cabling required and thus the overall weight of the car. Moreover, it is more scalable, allowing devices and sensors to connect at different speeds and has the benefit of components being available off the shelf.
In fact, research also shows that customers are willing to switch manufacturers just to be able to use mobile devices and connectivity. In 2014 there were 21% who were willing to do so whereas in 2015 this number climbed up to 37%. On top of that 32% of those customers would also be ready to pay for a service related to connectivity on top on a base model. This figure has been at 21% in 2014, one year before. The increase of customers willing to switch manufacturers and to pay for such services shows the increase in importance for connected cars.
The Internet of Things will be used to provide mobile services in the car with high-speed internet. This feature will enable real time traffic control, interaction with the car manufacturer service for remote diagnostics and improved company logistics automation. Moreover, in the beginning of the self-driven car era, internet will be used for information exchange between the cars for better route selection and accident reports.


Drawbacks and Challenges

Although the connected car offers lots of benefits and excitement to the drivers, it also faces drawbacks and challenges;