Automated Driving and Driver Assistance Systems by Denton Tom;

Author:Denton, Tom;
Language: eng
Format: epub
Publisher: CRC Press LLC
Published: 2020-05-15T00:00:00+00:00

4.9.3 Vehicle to vehicle (V2V)

Connected vehicles can exchange data via wireless communication. The system known as dedicated short range communication (DSRC) offers the most reliable technology for this vehicle-to-vehicle (V2V) communication for safety. DSRC transmits messages via a type of Wi-Fi that is similar to office or home systems. The messages can be transmitted to other vehicles over a longer range, and through barriers such as heavy snow or fog. DSRC, as well as other forms of connected vehicle communications, also make it possible to link vehicles with infrastructure. This enables coordination and cooperation that can reduce congestion and improve traffic flow. Pedestrians and bicyclists can be linked in through portable devices.

Definition

DSRC: Dedicated short range communication

The car of the future will be connected. This is because using up-to-the-minute information from the internet will get vehicle occupants to their destination even more safely, efficiently and conveniently. Integration into the internet of things also unlocks a host of vehicle-related services.

Figure 4.66 Bosch technology puts the car online. (Source: Bosch Media).

Bosch have a cloud-based alert that warns drivers within ten seconds if there is a wrong-way driver approaching. The warning system is a connected lifesaver in the true sense of the word.

To connect the car with the internet, Bosch pursues two main approaches. First, it makes full use of the driver’s smartphone. Using the integrated mySPIN solution, drivers can link their Android and iOS devices to the vehicle’s infotainment system. Selected apps can then be conveniently operated from the vehicle’s central display. This technology has been featured in Jaguar and Land Rover models since 2014.

Bosch’s second approach constitutes equipping the vehicle with connectivity hardware in the form of a connectivity control unit, or CCU. The CCU receives and transmits information using a wireless module equipped with a SIM card. It can also determine the vehicle’s position using GPS if desired.

Definition

CCU: Connectivity control unit

Connected to the vehicle’s electrical system via the OBD interface, the CCU is available both as original equipment and as a retrofit solution. This makes it possible for fleet operators to retrofit their existing vehicles as well. The Bosch subsidiary Mobility Media also markets this solution for private users under the name Drivelog Connect. A smartphone connected to the CCU can display vehicle data, offer tips on fuel-efficient driving and, in the event of a breakdown, immediately contact a towing service and the garage if required.

Figure 4.67 A connected car drives more proactively than a human!. (Source: Bosch Media).

Information on traffic jams, black ice and wrong-way drivers is available in the cloud. When combined with infrastructure data from parking garages and charge spots, this provides a broader perspective known as the connected horizon. In the connected vehicle, the driver can ‘see’ over the top of the next hill, around the next bend and beyond. Because future cars will warn drivers in plenty of time about sudden fog or about a line of cars stopped behind the next bend, driving will be safer.

Connectivity also enhances vehicle efficiency. For example, precise data about

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