Automated driving technology is gradually providing more and more assistance to the driver – with the future aim of the car being able to take complete control. But there is more to it than that: "We want to make cars better drivers than people, and in this way to increase road safety. In other words, technology has to work more reliably than people," says the Bosch
management board member Harald Kroeger.
That presents a major challenge, particularly in terms of surround sensing. Only if it knows exactly, and at all times, what is going on around it can an automated vehicle choose the right, and above all safe, driving strategy. Bosch uses various technologies for surround sensing, including ultrasound, radar, and video. When it comes to structure and function, cameras come closest to the human eye, which is why they will be such invaluable assets for automated driving, and indeed why they already play a key role in driver assistance. Bosch has now succeeded in taking automotive camera technology to a new level. This new Bosch technology is set to debut in vehicles in 2019. The combination of its unique multi-path approach and artificial intelligence (AI) for object recognition will make surround sensing far more reliable, and road traffic safer.
Human drivers: looking but failing to see
Cars with driver assistance, automatic emergency braking systems, and automated driving capability must be able to see all objects in their surroundings. On top of that, they must be able to detect in a flash if an object is relevant for their driving strategy. And just as quickly, they have to determine what their reaction to relevant objects should be. Should they break, swerve, or continue on their path? Unlike the human eye, the new Bosch MPC3 mono video camera has been optimized to handle such decisions.
For humans, looking is one thing, but actually recognizing what our eyes see is another matter. Our eyes may be marvels of nature, but we have our weaknesses when it comes to visual perception. Just because we see something does not mean that we recognize and understand it. Many drivers who are involved in accidents say that they had been looking in the right direction but failed to spot the other party. It is estimated that up to 50 percent of road traffic collisions are attributable to this phenomenon. The new Bosch camera is superior to the human eye in this respect, not least because it never gets tired, and works just as well after hours of driving as during the first kilometer.
Bosch technology makes new and improved driver assistance systems possible
The new technology’s great strength lies in its robust object recognition, enabled by Bosch’s multi-path approach. This also makes use of artificial intelligence. For example, Bosch engineers have taught the camera to reliably detect if the edge of the road is passable, even in the absence of road markings. This camera intelligence is based on Bosch know-how and integrated into a chip, known as V3H, made by the Japanese company Renesas. It can also improve legacy driver assistance systems and extend their application range.
For instance, it could enhance automatic emergency braking systems to prevent vehicles from hitting various types of animals. It could also make emergency braking more reliable since the camera can recognize pedestrians even when they are partially concealed. Bosch innovation also improves road-sign recognition. The new Bosch camera features optical character recognition that reliably reads text and numbers on road signs, and presents this information to the driver on a dashboard display.