iihs.o rg IIHS Update October 28, 2016 Charlottesville, Virginia
iihs.org
IIHS Update
October 28, 2016Charlottesville, Virginia
Headlight rating program
Motivation for headlight evaluation program
16,768 annual crash deaths in dark, dawn, dusk light conditions (2013 FARS)
HLDI analyses point to benefits for curve-adaptive headlights (2012 HLDI analyses of Mazda, Acura, Mercedes-Benz, Volvo claims)
Human factors experiments have established link between detection performance and improved lighting
FMVSS 108 produces wide range of on-road visibility– Large variation in allowable intensity
– Performance is not measured when installed, so factors like lamp height and spread are not captured
– Aim is not regulated
Vehicle approaches:
– 150 m radius left and right curves at 65 km/h
– 250 m radius left and right curves at 80 km/h
– Straightaway at 65 km/h
Record illuminance readings for:
– Visibility – edges of road at 25 cm above ground
– Glare – center of oncoming lane (110 cm)
Dynamic headlight test setup
250 m radius
150 m radius
straightaway
direction of travel
Light sensor array
Sample data: straightaway3 different approaches for same vehicle
50 60 70 80 90 100 110 120 130 140 1500
1
2
3
4
5
6
7
8
9
10
distance (m)
Lux
on ri
ght e
dge
of ro
ad
Visibility metric: distance at which 5 lux illumination is reached
First headlight releaseMarch 30
Midsize moderately priced and luxury/near-luxury cars
31 vehicle models
82 headlight combinations
– 1 good
– 17 acceptable
– 20 marginal
– 44 poor
First ratings release
Toyota Prius v
Website example
BMW 3 series halogen and Toyota Prius v LED Low beams
100 ft 200 ft 300 ft 400 ft
BMW 3 series halogen and Toyota Prius v LEDHigh beams
100 ft 200 ft 300 ft 400 ft 500 ft
Toyota Prius v LED and BMW 3 series halogen On-road comparison
2016 headlight test plan
2nd test group: small SUVs
– 20 models
– 43 unique make/model/headlight combinations
0 good
2 acceptable
8 marginal
33 poor
TSP+ candidates
Trucks (resulted released October 25th)
2017 TSP+ will require a good or acceptable headlight rating
Best available headlight for each model
Honda Ridgeline GMC Sierra Nissan TitanRam 1500
Chevrolet SilveradoFord F-150Toyota Tundra
Chevrolet ColoradoGMC CanyonNissan FrontierToyota Tacoma
POORP
GOODG
ACCEPTABLEA
MARGINALM
Large and small pickup trucks
Headlight rating counts148 ratings
0%
25%
50%
75%
100%
good
acceptable
marginal
poor
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