How to prevent a crash in an automatic fire door system with automatic door controllers.
It’s an important topic for the automotive industry, as fire doors and automatic door systems are the two most common types of automatic door devices used in the U.S. Automakers are installing hundreds of thousands of these devices in vehicles and trucks every year, according to the National Automobile Dealers Association.
The problem is, it’s very difficult to test the fire door’s effectiveness.
Automatic fire door systems work by controlling the doors to open automatically at specific times.
In theory, the door should open automatically when a person’s body temperature rises above a preset temperature, or when the door opens without any movement at all.
If the door doesn’t open at all, it will be locked and won’t shut automatically.
Theoretically, a fire door that’s supposed to shut automatically at any temperature will shut automatically if the temperature rises to a certain temperature.
Unfortunately, there’s no standard way to test these doors.
The U.K.-based engineering firm Ditec has developed a way to make sure an automatic front door can’t shut if it’s locked.
“Our engineers have developed a system that can actually open and close automatically when the temperature changes, regardless of the temperature in the front of the vehicle,” said Mike Fritsche, a Ditek engineer.
“It works at any ambient temperature.
It has a special software system to turn the door on and off automatically at a specific time.
So, it is essentially an open-circuit system.”
Ditecs patented system is tested on both front and rear doors.
Fritche said Diteca’s system is the same one used in many European and Asian car models.
“The front door will open automatically,” Fritches said.
“And, it closes automatically when you turn the ignition off.”
Fritkes explained that the system uses two different sensors.
The first sensor is the thermostat in the door.
If it’s at a certain value, the fire-resistance sensor will start blinking.
The second sensor is a temperature sensor in the doors back.
The system is programmed to shut down when the sensor reaches a certain number of degrees Celsius, or degrees Fahrenheit.
The Ditecera system uses sensors that are temperature sensitive, and when a sensor reaches the desired temperature, it shuts off automatically.
DiteC’s patented system also uses a sensor called a temperature control valve.
If you open the door, the valve will close automatically.
Friedman said he believes Diteco’s system works well, because the door’s door sensor has a low energy level.
“This is a thermostatically controlled system, so if you have a sensor at a temperature that’s very close to the temperature that is needed for the fire to occur, it can shut down automatically,” he said.
Friesen said Ditec’s system will work even when the sensors temperature is very high.
“When you’re in a very cold environment, it might shut down the system when it gets very hot, and then you’ll need to open it manually,” Friese said.
However, Fritsch said the Ditecc system is “not a complete solution.”
Frieses system is capable of shutting off at a lower temperature than the door sensor.
Firing door systems in the United States have had a history of problems.
In the late 1980s, Ditecec introduced a system called the Auto Door Controller, which was designed to prevent fires from happening in certain locations.
Ditcec says the Auto Controller was designed specifically for residential areas, and is supposed to detect a temperature rise above a predetermined threshold and close the door automatically.
However it didn’t detect the problem in residential areas.
In 2009, Ditces Auto Door Control System was replaced by the AutoDoor Control System.
DITEC said the new system is much safer.
“There are still some instances where the system will not shut down,” Friedes said.
A 2013 report from the Insurance Institute for Highway Safety found that Ditech has a 99 percent safety rating for fire door failures.
However Diteces AutoDorect System has a safety rating of 100 percent.
DITCEC is developing a new system that it says will improve its reliability.
Friersen said the company has a prototype that can shut off the system automatically when temperatures are around 200 degrees Fahrenheit, but it will only be used in testing.
Fritz said the next step is to get the DITECC system tested in real life situations.
“I don’t think that DITEcc will be able to come close to 100 percent reliability,” Fritz said.
Diter, the engineering firm behind Diteced, also is developing its own system.
Fits new system uses an automatic thermostatic valve, which Ditcer says it has tested successfully. F