(Original title: Cadillac has offered a reliable solution when the "pseudo-proposition" battle of L3 autopilot is getting worse)
When the vehicle transitions from semi-automatic driving to fully-automated driving, the intermediate link seems to have caused some disagreements, among which the level 3 (SAE) class of autonomous driving is the most typical one. In the SAE (American Society of Automotive Engineers) grading standards for vehicle autopilot, Level 3 is defined as a typical transition from advanced assistive driving to fully automated driving, and it is at this stage that car companies, suppliers, etc. layout The program began to differentiate.
When referring to the semi-autonomous driving system, as the name implies, the vehicle can carry out certain autonomous driving, but it still leaves the thorny problem to human beings to solve. This has caused some problems. The biggest problem is "security." Since the important decision-making power of semi-autonomous driving is still owned by mankind, the biggest contradiction to be solved by this type of system is to ensure that the driver remains alert and can quickly take over the steering wheel in the event of a sensor failure or emergency.
This problem, which is referred to as the “handoff problem†by engineers who drive autonomously, is also due to its complexity. Currently, companies such as Ford and Google Waymo have already given up semi-autonomous driving R&D and directly cut into Level 4 (SAE). Level autopilot, which eliminates the contradiction between the driver and the autopilot in one step. But does L3 become a chicken rib? Many companies believe that this path is still worth trying. After the Tesla Autopilot system was one of the cases, it has encountered widespread concerns. GM's Cadillac, but believe that they can do better L3 program.
How does Super Cruise solve the L3 autopilot problem?
Cadillac had previously announced that starting this fall, the 2018 Cadillac new American flagship CT6 sold on the US and Canada market will become the first production model equipped with a Super CruiseTM smart driving system. At that time, the vehicle will support automatic driving under limited conditions. It is reported that such automatic driving will be limited to specific highway sections in the United States and Canada.
The data shows that this car will be equipped with front-view camera, military-grade GPS, and radar sensor array. These devices ensure that the vehicle is driving in the lane line and maintain a safe distance from the obstacle in front of it. Last week, the Cadillac CT6 equipped with the Super Cruise system completed an automatic driving show on the Interstate 280 crossing the Silicon Valley in the United States. The vehicle was able to ensure stable driving at a speed of 85 mph (about 136 km/h).
Like other semi-autonomous driving systems, the CT6 requires the driver to remain alert and take over in a timely manner in emergencies. In order to achieve this goal, the solutions of various manufacturers are not the same. Take Tesla and Mercedes Benz as an example, they will require the driver to always place his hand on the steering wheel and maintain a high frequency of operation, but doing so The disadvantage is that the driver sometimes touches the steering wheel from time to time and may inadvertently interrupt the operation of the autopilot system and become a human takeover. The bigger problem is that this solution does not guarantee that the driver is really concerned about road conditions.
In order to allow the driver to really pay attention to the current road conditions and environment, Cadillac developed a system plan and called it "the first truly free-handed driving system." Specifically, Cadillac installed a small infrared camera on the steering wheel, which is used to monitor the direction of the driver's head. For example, if you look to the left, look to the right, or look down (maybe look at a cell phone), if this state remains for a few seconds, a green light beam on the steering wheel will light up. However, if you continue not to pay attention to road conditions, you will hear beeps from the seat and the lamppost turns red and flashes. If you do not make any response at this time, the vehicle will turn on the warning light, slow down the parking, and start the OnStar system to confirm whether the driver has any physical discomfort.
At the same time, in order to avoid encountering complicated conditions such as intersections, pedestrians, traffic lights, etc., the current Cadillac autopilot system only works on the limited highway. It is reported that Cadillac has sent an acquisition team to accurately collect these sections of the United States and Canada.
There are two benefits to doing this pre-acquisition. First, when the vehicle is about to leave the lane and enter the toll booth, the system can prepare in advance and give the driver enough time to take over control. Secondly, in the event of a camera failure, loss of GPS signal when the vehicle enters the tunnel, etc., the vehicle can still automatically drive according to the map. According to reports, Cadillac plans to update the map data through the cloud on a regular basis, but once the vehicle is delivered to users, its driving software system will not perform cloud updates like Tesla.
It is understood that Cadillac has not yet announced the pricing of the Super Cruise system installed on the CT6, but it is certain that this semi-autonomous driving vehicle, which is the first of its kind, will soon come.
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