Parking sensor: Difference between revisions

[[File:AudiVW A4Golf B7VII Avant- 2.0Parking TDIsensor Parksensor02.JPGjpg|thumb|Ultrasonic parkingParking sensor on a fender]]

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.

[[Blind spot monitor]]s 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 aoncoming parkingtraffic spacebehind whenthem trafficwhile isbacking approachingout fromof thea sidesparking space."<ref name="ford">{{cite web |url=http://www.thefreelibrary.com/See+It%2c+Hear+It%2c+Feel+It%3a+Ford+Seeks+Most+Effective+Driver+Warnings...-a0177931821 |author=Ford Motor Company |author-link=Ford Motor Company |title=See It, Hear It, Feel It: Ford Seeks Most Effective Driver Warnings for Active Safety Technology. Increased warnings indicate potentially hazardous lane changes |publisher=Gale, Cengage Learning/Free Library |year=2008 |access-date=August 11, 2013 |archive-date=July 30, 2017 |archive-url=https://web.archive.org/web/20170730065001/https://www.thefreelibrary.com/See+It,+Hear+It,+Feel+It:+Ford+Seeks+Most+Effective+Driver+Warnings...-a0177931821 |url-status=dead }}</ref><ref name="Jensen">{{cite news |url=http://wheels.blogs.nytimes.com/2009/08/18/are-blind-spots-a-myth/?_r=0 |date=August 18, 2009 |title=Are Blind Spots a Myth? |first1=Christopher |last1=Jensen |newspaper=[[The New York Times]] |access-date=August 9, 2013}}</ref><ref>[http://www.tricityinsurancenews.com/archives/automobile-blind-spot-monitoring-system/ Automobile Blind-Spot Monitoring System, Tri-City Insurance News, January 27, 2006] {{webarchive|url=https://web.archive.org/web/20091213014156/http://www.tricityinsurancenews.com/archives/automobile-blind-spot-monitoring-system/ |date=December 13, 2009 }}</ref>

In the United States, backup cameras have been required on all new cars since 2018.<ref>{{cite web |last1=Bomey |first1=Nathan |title=Backup cameras now required in new cars in the US |url=https://www.cnbc.com/2018/05/02/backup-cameras-now-required-in-new-cars-in-the-us.html |publisher=USA Today |access-date=14 October 2020 |date=2 May 2018}}</ref>

The [https://carspiritpk.com/parking-sensors-and-their-usefulness/ Parking Sensor], a spin-off from the travel aid for the blind, the [http://www.Sonicpathfinder.org Sonic Pathfinder], was first invented by [http://www.Sonicpathfinder.org/pa/cv.html Dr Tony Heyes] at the University of Nottingham. England. Toyota introduced ultrasonic Back Sonar on the 1982 [[Toyota Corona]], offering it until 1988.<ref>{{Cite web|url=https://newsroom.toyota.co.jp/en/detail/7675511|title = TOYOTA CORONA UNDERGOES FULL MODEL CHANGE &#124; Toyota Motor Corporation Official Global Website}}</ref> On December 13, 1984, Massimo Ciccarello and [[Ruggero Lenci]] (see [[List of Italian inventors]]) entered in Italy the patent request for ultrasonics Parking sensors, and on November 16, 1988, the Ministry of Industry granted them the Patent for industrial invention n. 1196650.<ref>{{Cite web |url=http://www.uibm.gov.it/uibm/dati/Codice.aspx?load=info_list_uno&id=1000426412&table=Invention&#ancoraSearch |title=Fonte: UIBM Ministero dello Sviluppo Economico |access-date=2015-02-09 |archive-url=https://web.archive.org/web/20150208125116/http://www.uibm.gov.it/uibm/dati/Codice.aspx?load=info_list_uno&id=1000426412&table=Invention&#ancoraSearch |archive-date=2015-02-08 |url-status=dead }}</ref>

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