Check List (Adaptive Cruise Control)

Item name			Yes/No
[1]: When the vehicle does not accelerate or decelerate according to the preceding vehicle, or when the preceding vehicle is difficult to be detected.
1	Check that the following are applied to the condition that the use of adaptive cruise control is not desired.
	1	Tire pressure is not correct.	Yes	No
	2	The vehicle is equipped with the temporary spare tire.	Yes	No
	3	The vehicle is equipped with worn tire or tires with excessive wear difference.	Yes	No
	4	The vehicle is equipped with the tires out of specification.	Yes	No
	5	The suspension has been modified.	Yes	No
	6	The vehicle is equipped with the tire chain.	Yes	No
	7	Headlight is dirty or the optical axis is deviated. (The vehicle cannot correctly emit the headlight beam against the object and recognize it.)	Yes	No
	8	The driving status of own vehicle is unstable due to an accident or failure.	Yes	No
	9	The brake warning light illuminates.	Yes	No
	10	When the vehicle is tilted by the heavy load or when the passenger capacity is exceeded.	Yes	No
	11	The vehicle is towing the trailer or other vehicle.	Yes	No
	12	The vehicle drives on the general road (other than limited highway). (Depending on the road environment (complicated roads etc.), the vehicle may not be able to drive according to the traffic condition, which may lead to the traffic accident.)	Yes	No
	13	The vehicle drives on the sharp bend.	Yes	No
	14	The vehicle drives on the slippery roads such as icy road or snow-covered road. (Tires can spin, losing the vehicle control.)	Yes	No
	15	The vehicle drives under the traffic condition that the certain vehicle distance is difficult to be maintained due to frequent acceleration and deceleration. (The vehicle may not be able to drive according to the traffic condition.)	Yes	No
	16	There is a steep downhills. (The vehicle may drive at higher speed than set vehicle speed.)	Yes	No
	17	The vehicle performs adaptive driving while recognizing the preceding vehicle on the steep downhills. (Brake can be overheated.)	Yes	No
	18	The vehicle drives on the road with repeated steep uphills and downhills or crossover. (The vehicle may not be able to recognize the preceding vehicle or may recognize the road surface, and appropriate control may not be performed.)	Yes	No
	19	The vehicle is entering the interchange, service area, parking area, junction or tollgate. (The vehicle may not be able to recognize the preceding vehicle.)	Yes	No
	20	When the surrounding brightness (such as inlet and outlet of a tunnel) suddenly changes.	Yes	No
	21	There are water, snow or sandy dust raised by the preceding vehicle or oncoming vehicle, or sand or smoke blown in the wind, or moisture in front of own vehicle. (The vehicle may not be able to recognize the preceding vehicle or may recognize the water, and appropriate control may not be performed.)	Yes	No
	22	The windshield glass is covered with fog, snow, dirt, frost or sandy dust.	Yes	No
	23	The raindrops, water drops or dirt on the windshield glass are not wiped off sufficiently. (The vehicle may not be able to recognize the preceding vehicle, and appropriate control may not be performed.)	Yes	No
	24	Canoes etc. loaded on the roof block the visibility of the stereo camera.	Yes	No
2	Check that the following are applied to the object or condition that is hard to be recognized by the stereo camera.
	1	That was a vehicle with large speed difference (low-speed driving vehicle, stopping vehicle, oncoming vehicle).	Yes	No
	2	That was a cutting-in vehicle.	Yes	No
	3	That was a motorcycle, bicycle, pedestrian or animal, etc.	Yes	No
	4	It was dim in the evening or in the morning.	Yes	No
	5	The headlight did not illuminate during nighttime hours or inside the tunnel.	Yes	No
	6	The tail light of the preceding vehicle did not illuminate during nighttime hours or inside the tunnel.	Yes	No
	7	The vehicle was exposed to the intense light (backlight such as sunlight or headlight high-beam light) from the front of the vehicle.	Yes	No
	8	The rearmost surface of the preceding vehicle was small, low or uneven. That was a truck equipped with an unloaded platform without gate, a vehicle that the luggage was protruding from the rear end of the vehicle, a vehicle of special shape (carrier car, side car, etc.) or a vehicle with low vehicle height.	Yes	No
	9	There was an object extremely close to the bumper of the own vehicle.	Yes	No
3	Check that the following are applied to the driving condition that the preceding vehicle cannot be recognized or the vehicle on the next lane or the object on the roadside may be recognized by mistake.
	1	The vehicle began adaptive cruise control from the condition that the vehicle distance was short immediately after the preceding vehicle was cut in.	Yes	No
	2	The vehicle drove on the curve, outlet and inlet of the curve, or the road with many curves in succession. (Recognition may not be performed properly, because the preceding vehicle is out of recognition area.)	Yes	No
	3	The position against the preceding vehicle deviated laterally.	Yes	No
	4	There were some objects just near the road side.	Yes	No
	5	The speed difference against the preceding vehicle was large.	Yes	No
	6	Other vehicle cut ahead of the own vehicle.	Yes	No
	7	The vehicle distance was extremely short.	Yes	No
	8	The own vehicle swayed in the vehicle lane.	Yes	No
	9	The road surface was uneven due to roll or unpaved track.	Yes	No
	10	The vehicle drove on the narrow lane because of the lane closure or construction work.	Yes	No
	11	The driving of own vehicle was unstable due to an accident or failure.	Yes	No
	12	The own vehicle was loaded with the extremely heavy load in the luggage compartment or on the rear seat.	Yes	No
[2]: When braking force is weaker than usual.
1	Check that the following are applied to the condition that brake force may become poor.
	1	The vehicle status (loading amount, passenger, etc.) was inappropriate.	Yes	No
	2	The road surface was very steep, slippery, sharp turn, or uneven.	Yes	No
	3	The service maintenance condition of the vehicle (brake system, tire wear, tire pressure, spare tire, etc.) was inappropriate.	Yes	No
	4	The brake was cold at low ambient temperature or immediately after the driving had started.	Yes	No
	5	The symptom occurred between immediately after engine started and after a while the vehicle started driving (Completion of warming up operation can be used as an indication.).	Yes	No
	6	The brake force becomes poor due to the overheating of the brake on the downhills.	Yes	No
	7	The brake force becomes poor because of the wet brake after driving onto the puddle or washing the vehicle.	Yes	No
[3]: When the alarm for requiring more brake pedal force does not sound.
1	Check that the following are applied to the condition that the alarm for requiring more brake pedal force does not sound even in a short vehicle distance.
	1	The relative speed to the preceding vehicle (when the vehicle speed of the own vehicle was approximately the same as that of the preceding vehicle) was small.	Yes	No
	2	The vehicle speed of the preceding vehicle was faster than that of the own vehicle (when the vehicle distance was getting longer).	Yes	No
	3	Other vehicle cut in extremely close to the own vehicle.	Yes	No
	4	The preceding vehicle decelerated abruptly.	Yes	No
	5	There are many continuous uphills and downhills.	Yes	No