No engine start in neutral?
#11
06-02-2008, 03:18 PM
Re: No engine start in neutral?
I believe this no start in Neutral can be advantageous. Say you are tooling along at 25mph in EV mode, about 1/4 mile to your destination, and you have to stop for a 90 second traffic light, and your SOC is 42% and falling quickly. With the selector in ‘D’, the ICE must start in about 15 seconds, which forces you to sit there with the engine running going zero miles per hour just to build the SOC. Ugly! But if you shift into ‘N’, the SOC can continue to drop for the entire 90 second traffic light, even below the magical 40% level, then when the light turns Green, you shift into ‘D’ or ‘L’, ICE spins up, and you drive the last 1/4 mile to your destination.
In this situation, you may have prevented ~75 seconds of ICE on time getting 0 MPG by shifting to Neutral.
In this situation, you may have prevented ~75 seconds of ICE on time getting 0 MPG by shifting to Neutral.
#12
06-02-2008, 06:00 PM
Re: No engine start in neutral?
That's odd because as I understand it, shifting to N is supposed to and always seems to "lock in" the current condition....if the ICE is on, it stays on, if the ICE is off it stays off. I am wondering if there is a speed component to the equation here though.
#13
06-03-2008, 11:06 AM
Re: No engine start in neutral?
Don & Tim K - Yes, the 6mph mentioned by DesertDog (I think), is the speed component. If you are stopped in neutral with the ICE off, I'm quite certain it won't restart when the SoC drops below 40%. However, if you are moving > 6mph in neutral, and SoC falls below 40%, the ICE will restart. I have experienced this, turning into my driveway > 6mph in neutral with a rapidly dropping SoC, only to have the ICE come on the last 50 feet. Had I known about the 6mph threshold, I would have crept into the garage to keep the engine off those last few feet.
What econoline experienced going around the corner, I am not certain. If you were going faster than 6mph into the turn when SoC dropped below the threshold and the ICE started, I think it may be a coincidence it was just when you applied the brake? I don't know if the brake application had any bearing on restart? Perhaps more experiments are required. The FEH learning curve continues!
What econoline experienced going around the corner, I am not certain. If you were going faster than 6mph into the turn when SoC dropped below the threshold and the ICE started, I think it may be a coincidence it was just when you applied the brake? I don't know if the brake application had any bearing on restart? Perhaps more experiments are required. The FEH learning curve continues!
#14
06-03-2008, 11:30 AM
Re: No engine start in neutral?
Don & Tim K - Yes, the 6mph mentioned by DesertDog (I think), is the speed component. If you are stopped in neutral with the ICE off, I'm quite certain it won't restart when the SoC drops below 40%. However, if you are moving > 6mph in neutral, and SoC falls below 40%, the ICE will restart. I have experienced this, turning into my driveway > 6mph in neutral with a rapidly dropping SoC, only to have the ICE come on the last 50 feet. Had I known about the 6mph threshold, I would have crept into the garage to keep the engine off those last few feet.
What econoline experienced going around the corner, I am not certain. If you were going faster than 6mph into the turn when SoC dropped below the threshold and the ICE started, I think it may be a coincidence it was just when you applied the brake? I don't know if the brake application had any bearing on restart? Perhaps more experiments are required. The FEH learning curve continues!
What econoline experienced going around the corner, I am not certain. If you were going faster than 6mph into the turn when SoC dropped below the threshold and the ICE started, I think it may be a coincidence it was just when you applied the brake? I don't know if the brake application had any bearing on restart? Perhaps more experiments are required. The FEH learning curve continues!
#15
06-03-2008, 12:14 PM
Re: No engine start in neutral?
Please keep us posted. Most of us on this website are like sponges, thirsting for knowledge
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ptung07
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