Toyota Developing Pre-collision System to Avoid High Speed Crashes

Crash Avoidance Technology, from GM

Toy­ota Motor Corp. used sta­tis­tics from the Insti­tute for Traf­fic Acci­dent Research and Data Analy­sis to tar­get devel­op­ment of its next-gen­er­a­tion col­li­sion avoid­ance sys­tem. More than 90% of rear-end col­li­sions hap­pen when the dif­fer­ence in speed between the two vehi­cles is with­in 37 miles per hour. This is the typ­i­cal sce­nario dur­ing high-speed col­li­sions – not nec­es­sar­i­ly a car being rear-end­ed out of nowhere at 70 mph, but more like the typ­i­cal traf­fic con­di­tions of anoth­er dri­ver try­ing pass up a car in the way with­out tak­ing real­is­tic stop­ping maneu­vers.

Toy­ota has devel­oped a high-speed col­li­sion avoid­ance sys­tem along with a new test­ing facil­i­ty in Japan to increase pedes­tri­an and vehi­cle safe­ty tech­nolo­gies, along with fuel-effi­cien­cy inno­va­tions. Toyota’s Pre-col­li­sion Sys­tem has uti­lized real world traf­fic data to improve per­for­mance and safe­ty. PCS uses mil­lime­ter-wave radar to look ahead for oth­er vehi­cles, and warns the dri­ver via sound and dis­play alerts to apply the brakes to avoid a poten­tial col­li­sion. The sys­tem also deploys brak­ing assist and auto­mat­ic brak­ing. When brakes are applied, PCS can slow the vehi­cle by as much as around 40 miles per hour when the speed dif­fer­en­tial between the fol­low­ing vehi­cle and the vehi­cle ahead is about 40 mph.

How does it work? Toyota’s PCS applies twice as much brak­ing force as what aver­age dri­vers capa­ble of doing, and will auto­mat­i­cal­ly apply the brakes even if the dri­ver doesn’t under cer­tain con­di­tions. The automak­er says PCS was devel­oped for use in a wide vari­ety of its auto­mo­biles, start­ing with soon-to-be-launched mod­els.



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