- CX5 Optimum 2020
System must have error/fault, mine brakes for bikes, cars, people and even to low traffic signs.
It works as supposed.
It works as supposed.
I've had mine kick in twice so far. Both times it shook me up as I was not expecting it.
I haven't tried testing it with boxes or sheets or the like, but knowing it worked twice in real situations is good enough for me.
Keep in mind In the US we get Advanced Smart City Brake Support with Pedestrian Detection only since 2019 CX-5 MY (expect 2019 CX-5 Sport). And both ASCBS and SCBS are for driving at low speeds (approximately 2.5 ~ 19 mph or 4 ~ 30 km/h on SCBS) only. The objects intended to detect are very different between the two.System must have error/fault, mine brakes for bikes, cars, people and even to low traffic signs. It works as supposed.
This is one of the issues I have with Mazda, and all other car companies is the alphabet soup they create with different sub systems....Keep in mind In the US we gets Advanced Smart City Brake Support with Pedestrian Detection only since 2019 CX-5 MY (expect 2019 CX-5 Sport). And both ASCBS and SCBS are for driving at low speeds (approximately 2.5 ~ 19 mph or 4 ~ 30 km/h on SCBS) only. The objects intended to detect are very different between the two.
That's to the point. It's helpful to think about what the systems do. The radar detects motion and distance. The camera detects the kind of objects in view and that is where many of the difficulties lie.People aren't shaped like sheets either. You can't have an emergency braking system that triggers on anything and everything or it would be throwing you through the window all day with false alarms. The car's sensor is programmed to recognize the human form (which is why it won't emergency brake for animals).
This isn't an autonomous driving system but rather a simple "driver distraction" system. I think many people believe it is much more capable than it actually is. If you are manipulating the accelerator or turning the steering wheel the car assumes YOU are paying attention and driving and won't intervene. (It may warn you but not intervene). Notice on that video by @ceric that the driver had his foot off the accelerator and did not move the steering wheel during the SCBS demo.
I tend to think the system is not restricted to metal objects, at least as of 2020, when thinking about how the rear cross traffic alert works in the base system (not the 360 degree upgrade). The rear camera is dumb; it doesn't do anything but show a picture on the display. The vehicle won't warn you about backing into a stationary object. It's a radar-driven motion detector only.If I remember it correctly, the object has to be metal, unless the system is pedestrian capable such as “City Safety” system on Volvo.
My understanding is that RCA does not detect stationary objects. It uses Doppler effect to filter them out. Imagine in a parking lot full of vehicles. You are backing out from your space.... So many parked vehicles around you.The radar can detect objects, whether a moving pedestrian, a moving vehicle, or a stationary object you are going to back into, though not with the fidelity of the ultrasonic (sonar) sensors in the bumper.
A noted previously, I don't know what the upgraded 360 degree display version of the system might do or another Mazda system with auto braking, but I can tell you from first hand experience that the base version in the 2020 CX-5 does not detect rear stationary objects as discussed in another thread.For Rear Cross Traffic Alert, the same radar sensor changes the shape of the detection lobe to cover a wider rear traffic area. The radar can detect objects, whether a moving pedestrian, a moving vehicle, or a stationary object...
Are you sure metal has anything to do with it? Do you think the front detection system wouldn't stop you from hitting a brick wall? It could as easily be a system glitch that manifests only under specific conditions. Maybe you're right. Maybe the front camera is not trained for "brick wall" and does not communicate confirmation of a threat. The manual only mentions "vehicles" and "pedestrians" however that isn't saying much. The manual cannot be trusted for completeness and accuracy. If this system would not stop you from hitting that wall it calls into question the intelligence of the system as a whole. Anyway, consider the following:Pedestrians? Not reliable. It depends on how much metal objects they have on them.... Mine was able to alert me sometimes, not all the times.
If that is always happening you need to do one of these things:I always get the BRAKE signal when driving in the 1st lane on the highway and the car in front exits off.