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Ultrasonic parking sensor
Parking sensors are proximity sensors for road vehicles designed to alert the driver of obstacles while parking. These systems use either electromagnetic or ultrasonic sensors.
May 28, 2012 AFAIK, VW offers 2 rear parking sensors.the acoustic and the optical parking sensor. I had the acoustic one installed on my '09 Tiguan at the dealership (P/N 1K0054630B) I think I paid around 200 bucks but that was 3 years ago.I'm not sure how much it costs today but it does its job well.
Ultrasonic systems[edit]
Parking sensor on a fender
These systems feature ultrasonicproximity detectors to measure the distances to nearby objects via sensors located in the front and/or rear bumper fascias or visually minimized within adjacent grills or recesses.
The sensors emit acoustic pulses, with a control unit measuring the return interval of each reflected signal and calculating object distances.[1] The system in turns warns the driver with acoustic tones, the frequency indicating object distance, with faster tones indicating closer proximity and a continuous tone indicating a minimal pre-defined distance. Systems may also include visual aids, such as LED or LCD readouts to indicate object distance. A vehicle may include a vehicle pictogram on the car's infotainment screen, with a representation of the nearby objects as coloured blocks.
Rear sensors may be activated when reverse gear is selected and deactivated as soon as any other gear is selected. Front sensors may be activated manually and deactivated automatically when the vehicle reaches a pre-determined speed — to avoid subsequent nuisance warnings.
As an ultrasonic systems relies on the reflection of sound waves, the system may not detect flat objects or object insufficiently large to reflect sound — e.g., a narrow pole or a longitudinal object pointed directly at the vehicle or near an object. Objects with flat surfaces angled from the vertical may deflect return sound waves away from the sensors, hindering detection. Also soft object with strong sound absorption may have weaker detection, e.g. wool or moss.
The Parking Sensor, originally called as ReverseAid, was a spin-off from the Sonic Pathfinder,[2] an Electronic Guidance Device for the Blind. Both devices were invented in the late 1970s by Tony Heyes while working at the Blind Mobility Research Unit at Nottingham University in the UK. After patenting the device in 1983 Heyes offered it to Jaguar Cars in Coventry. After test driving the prototype on Heyes's car they very politely told him that, 'You like it because you are a one-eyed driver who cannot judge distances. Real people would not want a thing like this.'[citation needed]
Heyes teamed up with a local manufacturer and some 150 units were made and fitted to petrol tankers, trucks and delivery vehicles. Very few were fitted to private cars since few people wanted to drill holes in their cars.
Electromagnetic systems[edit]
The electromagnetic parking sensor (EPS) was re-invented and patented in 1992 by Mauro Del Signore.[3] Electromagnetic sensors rely on the vehicle moving slowly and smoothly towards the object to be avoided. Once detected, the obstacle, if the vehicle momentarily stops on its approach, the sensor continues to give signal of presence of the obstacle. If the vehicle then resumes its manoeuvre the alarm signal becomes more and more impressive as the obstacle approaches. Electromagnetic parking sensors are often sold as not requiring any holes to be drilled offering a unique design that discreetly mounts on the inner side of the bumper preserving the 'new factory look' of your vehicle. Now they also come equipped with a camera to go with the sensor. By 2018 the US is requiring back up camera with sensors on all cars.
Blind spot monitors and other technology[edit]
Blind spot monitors are an option that may include more than monitoring the sides of the vehicle. It can include 'Cross Traffic Alert,' 'which alerts drivers backing out of a parking space when traffic is approaching from the sides.'[4][5][6]
Inventors[edit]
Toyota introduced ultrasonic Back Sonar on the 1982 Toyota Corona, offering it until 1988.[7] December 13, 1984 Massimo Ciccarello and Ruggero Lenci (see List of Italian inventors) entered in Italy the patent request for ultrasonics Parking sensors, and November 16, 1988 the Ministry of Industry granted them the Patent for industrial invention n. 1196650.[8]
See also[edit]
- Experimental Safety Vehicle (ESV)
References[edit]
- ^'Mercedes Benz Parktronic system (PTS)'. Launch Tech. Retrieved 2008-07-13.
- ^'Gateway to Perceptual Alternatives'. Perceptual Alternatives.
- ^'Electromagnetic Parking Sensor patent'.
- ^Ford Motor Company (2008). 'See It, Hear It, Feel It: Ford Seeks Most Effective Driver Warnings for Active Safety Technology. Increased warnings indicate potentially hazardous lane changes'. Gale, Cengage Learning/Free Library. Retrieved August 11, 2013.
- ^Jensen, Christopher (August 18, 2009). 'Are Blind Spots a Myth?'. The New York Times. Retrieved August 9, 2013.
- ^Automobile Blind-Spot Monitoring System, Tri-City Insurance News, January 27, 2006Archived December 13, 2009, at the Wayback Machine
- ^https://newsroom.toyota.co.jp/en/detail/7675511
- ^Fonte: UIBM Ministero dello Sviluppo Economico
External links[edit]
Wikimedia Commons has media related to Parking sensors. |
- 'The danger of blind zones The area behind your vehicle can be a killing zone'. Consumer Reports. Consumers Union. March 2012. Retrieved August 10, 2013.
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What You'll Need
What You'll Need
Reverse parking sensors can literally save lives. By installing this new system into your car, you can avoid hitting poles, cars, and even other people. The sensors can tell you what is behind the car and will let you know when you are nearing an object so that you can avoid hitting it. This is a great feature, and while it should come standard with every car sold, it doesn't yet. Installing this system is a great idea for drivers of all ages, and you can even install it and calibrate it yourself. Here are a few steps to help you with the calibration once everything has been installed.
Step 1 - Consider Where You Drive and Park
Calibrating your reverse parking sensors has a lot to do with not only the size of your car but also the spaces you are parking in. Once the wires are connected, you will be able to see if your screen and sensors are showing you exactly what you need to feel comfortable driving. If you are not getting a clear enough sense, then you will want to change the location of the sensors.
Step 2 - Calibrate the Height and Placement of Sensors
This isn't as hard as you may think. All you need to do to make sure that the sensors are in the correct spot is to place them in the middle of the bumper and make sure that they are not turning up or downward. If the bumpers are more than 8 degrees facing downward, then you will need to compensate with an angled sensor.The sensor height should be between 17 and 32 inches, depending on the kind of car. Try to center them as best you can to mark the spot.
Step 3 - Connect the Controls and Beeper
Attach the red and black wires. Depending on the model, you will want to make sure that you are getting the wire colors right by checking the manual that comes with the sensors. After you attach the sensors to the beeper, you will then attach the beeper to the control panel using a blue connector (again, colors may vary).
After you are finished hooking everything up, you will want to mount the control in a place that is convenient for the driver. Now that it is hooked up, you can control your settings and calibrate it to your own needs, including how much space you would like before it beeps.
After that, you should test out your sensors and make sure that everything is hooked up correctly and functioning properly. When you begin backing up, your reverse parking sensors will automatically begin working as long as they have been measured correctly and put in the right spot. If you somehow have them in a spot that does not detect when you are reversing or the area around you, you will want to bring it in to get the wiring or placement of sensors fixed.
Once everything is working, you can hit the road knowing you will be much safer.