For the first time, Google’s fully autonomous driverless car suffered major traffic accidents. A Google driving unmanned car under test was in close touch with the bus yesterday. The accident occurred on Valentine’s Day last month and Google reported the accident. Submitted to the California Motor Vehicle Authority.
In this accident, Google’s driverless car was only 3 km/h and the speed of the bus was 30 km/h. Because the speed of the two vehicles was very slow, there was no serious accident. According to the driving report, Google’s car was to avoid the road at that time. The sandbag, which thought that the bus traveling in the same way would give way, did not control the brake system, which resulted in a collision between the left side of the car and the right side of the bus.
Prior to this, Google had tested 24 unmanned Lexus SUVs at its Silicon Valley headquarters. All cars were equipped with sensors and cameras. This is not the first car accident. There have been more than 10 car accidents recorded before. In most cases, Google Motors was rear-ended by other vehicles, and there were no major casualties. Google said it has not been identified as the party responsible for the accident in any accident. The Mountain View police said they have not signed any report on the accident. A spokesman for the National Highway Traffic Safety Administration declined to comment on the matter.
In December last year, California criticized unmanned cars and stipulated that driverless cars traveling on public roads must have steering wheels, throttles, and brake pedals. Also, a licensed driver must be on hand to respond to emergencies. At that time, Google did not install a steering wheel and full-time drivers on the tested cars. Now Google’s driverless car development project has reached 6 years, and the total test mileage includes automatic and manual driving. More than 2 million miles have occurred. Only 17 minor accidents occurred during this period. "No one accident was caused by a driverless car."
The new security law introduced by California states that Google's test drivers should control the steering wheel when needed. If it is finally determined that Google Motors will take responsibility for the accident, this will be the first accident in the Google SUV series in the automatic driving mode. A spokesperson for the California Motor Vehicle Administration said that the agency had a conversation with the Google executive on Monday to discuss the cause of the accident. Google spokesperson did not immediately comment on the matter.
Welded Bed Plate For Flanges Of Ship Pipe
The flange welded single-sided seat plate is mainly installed on the top, side wall and bottom of the cabin or cabinet as the entrance and exit of the cabin or cabinet. Valves, accessories or pipes can be installed directly on the single-sided seat plate.
Flange welded single-sided seat plate is suitable for seawater, fresh water, oil, air and steam pipelines below 300 °C. The commonly used nominal diameter is 15~150 mm, and the nominal pressure is lower than 1.6 MPa. The shape of the single-sided seat plate is similar to the corresponding lap-welded Steel Flange.
Flange welded double-sided seat plates are generally used when pipelines pass through decks and tanks, and the two sides of the seat plate are respectively connected to valves, accessories or pipes.
Compared with the single-sided seat plate, the double-sided seat plate has an extra shoulder and double-sided mounting stud bolts. The outer diameter of the shoulder is 10~20 mm larger than that of the corresponding flange, and the thickness of the shoulder is 6~12 mm.
Its scope of application and other structural dimensions are basically the same as those of the single-sided seat plate.
The manufacturing and installation methods of the flange-welded double-sided seat plate are basically the same as the single-sided seat plate, but when the screw holes are drawn, the positions of the upper and lower screw holes of the seat plate must be staggered from each other and must not overlap; deck or bulkhead The diameter of the hole on the top is 2~3 mm larger than the diameter of the seat plate.
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