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Pre-Collision Braking System
28
Continued from previous page
• When the difference in speed with the obstacle in front is the following figure
*1
or more, it may not be possible to avoid a collision. Even if the speed differ-
ence is the following figure
*1
or less, in cases such as when another vehicle
cuts in front of you, or in other cases depending on visibility, the condition of
road surface and other factors
*2
, the function may be unable to stop the vehi-
cle or may not activate. Pre-Collision Braking Assist also may not activate
depending on the conditions
*2
listed below.
*1: For vehicles: approximately 30 mph (50 km/h),
For pedestrians: approximately 21 mph (35 km/h)
*2: Conditions in which Pre-Collision Braking System cannot detect obstacles:
- Distance to obstacle in front of you, speed difference, proximity conditions,
lateral displacement (the amount of offset)
- Vehicle conditions (amount of load, number of occupants, etc.)
- Road conditions (grade, slipperiness, shape, bumps, etc.)
- Visibility ahead is poor (rain, snow, fog or smoke, etc.).
- The detected object is something other than a vehicle, motorcycle, bicycle
or pedestrian.
• A domestic animal or other animal (a dog or deer, etc.)
• A guardrail, telephone pole, tree, fence or wall, etc.
- Even if the obstacle is a motorcycle, bicycle or pedestrian, depending on the
brightness of the surroundings as well as the relative movement, and
aspect or angle of the object, there may be cases when the system cannot
detect it.
- The system determines that operation by the driver (based on accelerator
pedal operation, braking, steering wheel angle, etc.) is intended as evasive
action.
- Vehicle maintenance status (brake systems, tire wear, tire pressure,
whether a temporary spare tire is being used, etc.)
- A trailer or another vehicle, etc. is being towed.
- The brakes are cold due to the outside temperature being low or just after
starting the engine.
- The brakes are overheated on downhill grades (braking performance is
reduced).
- In rain or after washing the vehicle (the brakes are wet and braking perfor-
mance is reduced.)
- Recognition conditions of the stereo camera
In particular, the function may be unable to stop the vehicle or may not acti-
vate in the following cases.
B2612BE-A.book 28 ページ ２０２１年２月１５日 月曜日 午前１２時２４分
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