Current Status of Autonomous Cars
Driving Support Technology
Currently, a lot of vehicles are introducing various driving support technologies to prevent accidents. This is the first step towards the realization of full autonomous car capability.
- Autonomous Emergency Braking (AEB)
If there is danger of a collision, it will alert to the driver and if no evasive action is taken, brake control will be carried out to automatically decelerate or stop to avoid collision.
SUBARU EyeSight Pre-Collision Braking System Honda SENSING Collision Mitigation Braking System (CMBS) NISSAN All-Around Driving Support System
Forward Collision Avoidance Assist Concept
MAZDA ADVANCED Smart City Braking Support (ADVANCED SCBS) TOYOTA Pre-Collision Safety System (PBA) DAIHATSU Smart Assist Crash-avoidance Braking Function Mitsubishi e-Assist FORWARD COLLISION MITIGATION (FCM) Suzuki Dual Camara Brake Support (DCBS)
- Adaptive Cruise Control (ACC)
- These cars follow the preceding cars on the highway. They automatically perform pedal operation such as deceleration and stopping, even when you are in a traffic jam.
SUBARU EyeSight Adaptive Cruise Control Honda SENSING Adaptive Cruise Control (ACC) NISSAN All-Around Driving Support System Distance Control Assist MAZDA MAZDA Radar Cruise Control (MRCC) TOYOTA Radar Cruise Control Mitsubishi e-Assist ADAPTIVE CRUISE CONTROL SYSTEM (ACC)
- Lane Keeping Assist (LKA)
- Recognizing the lane lines, the steering operation is automatically assisted, so it keeps driving in the center of the lane.
SUBARU EyeSight Active Lane Keep Honda SENSING Lane Keeping Assist System (LKAS) MAZDA Lane Keep Assist System (LAS)
- Lane Departure Prevention
- When a car is about to stray from a lane, it urges the driver to pay attention and assists the steering function to prevent accidents.
Honda SENSING Road Departure Mitigation (RDM) system NISSAN All-Around Driving Support System Lane Departure Prevention MAZDA Lane Departure Warning System (LDWS) TOYOTA Lane Departure Alert (LDA)
- Lane Change System
- Detects own lane and adjacent lane when the car changes lanes.
These are the systems where the autopilot controls the three main functions of the car driving, turning and stopping.
When they can be integrated and controlled simultaneously by improving the sensing technology such as measurement, it will evolve to an advanced driving support system (ADAS).
Efforts toward Realization of Autonomous Driving in Each Country
- Google is to start public road tests using their Google car. In California, a law on automatic driving is being enforced. (But not including level 4 in which cars run on public roads) In Nevada, level 4 is also allowed on public roads as long as the drivers have special licenses. In addition, Tesla is developing a car that will enable full autonomous operation.
- The Ministry of Transport is planning to conduct experiments on autonomous driving technology. In addition, autonomous operation other than unmanned operation, is planned to clearly indicate the process which the car can run by special domestic approval and a standard easing system.
- Mercedes-Benz traveled on public roads approximately 100 km with an autonomous car (with a driver) in Frankfurt. Autonomous cars are approved under a special domestic law as long as a driver is in the car.
- In Japan, the government has introduced a policy to promote automatic driving technology. However, compared to the countries mentioned above, there are still many issues to realize autonomous driving technology, such as lack of concrete legislative ideas, the outlook of public road driving tests have not yet been established.
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