Toyota Motor and Honda recently demonstrated their respective test vehicles in the "ASV-3" open experiment held on the cold road test road in Hokkaido, Japan's Ministry of Land, Infrastructure, Transport and Tourism.
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Although the two companies are committed to using the communication in the workshop to prevent accidents, they are improving safety from different viewpoints. For example, in order to make the driver aware of the danger, Toyota uses an audible prompt that attracts attention, and Honda adopts It is an intuitive way to apply a slight brake.
Toyota pays attention to the sound prompts when multiple cars are connected in series. “It’s not just about telling that the vehicle is approaching, but also telling if there is a motorcycle hidden in the dark around the vehicle to convey the driver’s information to the actual situation†(development leader).
For example, if you want to turn right at the cross, if there are cars and motorcycles coming in the opposite lane, you will be prompted by the sound not only the car, but also the motorcycle is approaching. "If you just tell other people that 'the car is approaching', the driver is likely to focus on the car and safely turn the steering wheel to the right. This is very likely to cause the driver to the motorcycle. The negligence, therefore, the way to give separate reminders to cars and motorcycles (development leader).
In order to reduce the amount of computational processing, Toyota has also worked hard on the algorithm. In this experiment, all Toyota vehicles will send GPS positioning information and the working status of the turn signals to other vehicles in the surrounding area every 0.1 seconds. In actual use, it is sometimes possible to detect hundreds of vehicles at a time, and in this case, it is possible to identify a car with high risk in an instant. Specifically, the starter filter is used to lock the vehicle in the forward direction and the dangerous vehicle in the area where it is located.
Honda has adopted a "skin alert" system, and when a vehicle is approaching, it will inform the driver in a somatosensory manner. Somatosensory alarms include three ways to vibrate the accelerator pedal and steering wheel, as well as a slight brake, depending on the situation. “As everyone knows, there is a big gap in the speed of response between people with less driving experience and those with experienced driving experience. If you have a somatosensory alarm, you can be aware of the danger regardless of your driving experience†(development leader).
For example, when there is a car parked at the turn, a slight brake is automatically applied to alert the driver to take the brake. The intensity of the brake operation is set to approximately 0.25G (1G is 9.8m/s2). “If the driver does not decelerate, a slight brake can be applied within 1 second. Up to 3 consecutive brakes can be performed continuously†(development is responsible for people). The rear-end collision prevention safety system reduces the braking force to 0.5G, while the body-sensing warning braking force is about half of the rear-recovery braking force.
In addition, when there is a danger of a frontal collision with the oncoming vehicle, the driver is alerted by vibrating the accelerator pedal and applying a reverse force to the steering wheel to prevent the collision from occurring.
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