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Autopilot Engaged and Override
- Thread starter Wharton
- Start date
Stellavator
Member
Here's a thought. Perhaps when you thought you were disengaging EAP, you pushed the stalk down. This does not disengage EAP. You must push the stalk up, I think.
RedModel3
Member
Very little mention of the "poor weather detected" as shown on the OP's timeline drawing of events. I wonder how that played into everything. Ice on the road and tires sliding?
so these unintended accelerations are missing one point - physics. The brake is a physical metal bar that connects to a physical tube filled with hydraulic fluid that connects to a physical caliper / pad / rotor. While there is electronic assist, the brakes will work without the electronic assist, and the way that the electronic assist is implemented it is physically impossible for it to cause you to not be able to brake. What this means is that NO MATTER WHAT, if you hit the brakes, the car will stop. You are literally applying a clamp to the wheels directly and without the computer being able to intervene.
On top of this, even at maximum torque of both motors, the brakes are able to rapidly and quickly stop the car. So lets say even if the car accelerated on its own, for the sake of argument. Your foot on the brake would 100% overpower the motor immediately. brakes are EXTREMELY powerful
There is literally no other way around this.
So the second you felt the car accelerating not the way you wanted it to, you hit the brakes and stop the car. period. if it is legitimately accelerating on its own, turn it off while you have the brake down and call for a tow.
In no scenario does the car "drive itself into a tree/fence". It means you didn't hit the brake or if you did, you didn't hold the brake down.
Regarding the bad weather message from autopilot - I get this all day long here in new england every time it thinks about raining. unrelated.
On top of this, even at maximum torque of both motors, the brakes are able to rapidly and quickly stop the car. So lets say even if the car accelerated on its own, for the sake of argument. Your foot on the brake would 100% overpower the motor immediately. brakes are EXTREMELY powerful
There is literally no other way around this.
So the second you felt the car accelerating not the way you wanted it to, you hit the brakes and stop the car. period. if it is legitimately accelerating on its own, turn it off while you have the brake down and call for a tow.
In no scenario does the car "drive itself into a tree/fence". It means you didn't hit the brake or if you did, you didn't hold the brake down.
Regarding the bad weather message from autopilot - I get this all day long here in new england every time it thinks about raining. unrelated.
Tesla cars are electromechanical.
The braking force is controlled on each brake caliper independently by the car computer. The actuator is entirely electrical. The movement of the caliper is measured and fed back to the computer. This enables the following features:
- Very low latency time in controlling the braking force.
- After braking, the friction material is automatically lifted away from the disk rotors to avoid drag. (In hydraulic braking systems the brakes drag slightly and waste energy).
- Transparent integration of regenerative braking and friction braking.
- Traction control without any limited slip differential. (In fact the high torque from the electric motors would break a limited slip differential).
- Anti-lock braking (ABS)
- Diagnostics
In order for what you're saying to be true there would have to have been a simultaneous failure of the entire braking system and the traffic aware cruise control system. Or .... you pressed the wrong pedal. We'll know for sure when Tesla pulls the logs and reports their findings, unless you're going to say the logs failed too, like the last guy did.
This sounds remarkably familiar.
Did they ever get a resolution to what happened?
I just want to get to the bottom of this and have Tesla make sure this isn't a bug.
I'm not interested in monetary gain (I'm already ordering a new Tesla).
IIRC, in every case, they found that the driver pushed the accelerator instead of the brake pedal.
Thanks.
The person behind me reported that he saw the brake lights go on through the crash so we will wait till the logs become available.
jdcollins5
Member
The brake lights come on with regen braking. So just seeing brake lights does not necessarily mean the brake pedal was pushed.
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