Getting the car up to speed from a dead stop uses a lot of energy. The proven method is to use the engine to accelerate to speed and then release the throttle and then reapply to get it to switch to electric mode to maintain that speed, assuming you are not climbing a hill.
At 0mph an ICE has zero torque, where as an electric motor has 100% torque the instant it gets juice. This means overall from a stop, you use your energy more efficiently to start in EV mode.
What I find most effective, and the coach agrees, start out rolling on EV for about 5-7 MPH and let the ICE kick in. When you do it right you wont even feel the ICE spin up. What it doesn't like is hitting the throttle from a dead stop, it will drop that bar faster than Congress voting on an unread bill. However accelerating on EV only up to say 30 MPH does waste fuel because now you have to recharge the batteries with the ICE, and that is where the gas gets wasted. Go read the thread accelerating under the Hybrid tricks forum.
I will typically try to stay in EV mode up to at least 15mph, but yes it is best to come off a complete stop in EV mode. I don't know where the best point is to switch over to ICE, but in general just to keep Bubba from pushing you off the road you need to switch over to ICE at some point to improve acceleration.
On the braking, I have noticed that if I used the Adaptive Cruise, and someone cuts in front of me, or traffic slows really quick, my car can slow down (on its own – I don’t touch the brake) from 60+ to 10mph very fast. I always assume this is only using the regen braking. But maybe I am wrong.
Any opinions on this? If it’s using only the regen braking, then is it charging at a higher rate because of the fast braking effect? In other words, generating more charge due to the harder regen action?
Or is it actually using the friction brakes as well as the regen?
I would love to learn the limit where it goes to friction. But maybe only the computer can max out the regen braking, and won’t do that when the driver is using the brake pedal.
Adaptive Cruise Control has a habit of kicking in friction brakes if it thinks it needs to slow down really quick. This is one reason I really wish there was a three second following distance option. One thing I learned from my days of commercial driving is that if you are having to apply the brakes frequently to adjust for the speed of drivers in front of you, you are following too damn close. With a proper following distance, you can simply let off the accelerator and drift to a slower speed to adjust for minor traffic changes ahead.
I'm pretty sure the car will use both regen and friction brakes when it stops that fast. What really bugs me is when someone in front of me turns and I can see them driving away from my lane, but my car keeps slowing down! It takes a lot of energy to get back to cruising speed and the ICE engine usually kicks in ... when it could've slowed down less and just kept on cruising, but get a little closer to the car in front of me
Ya I find that a bit annoying as well, but if I see it is going to happen, I temporary cancel cruise control and apply the proper amount of breaking to adjust for the turning vehicle.
There are four settings for the gap between the two cars. Which one are you using?
Sporty (1 second), Normal (1.5 seconds), Normal (1.9 seconds), Comfort (2.3 seconds).
Thanks, I never new what the bars represented. I really wish there was at least a fifth bar for 3 seconds. This would give the adaptive cruise control more space to more gradually adjust for changes in speed by the leading vehicle.
In all truthfulness from a safe driving perspective the ideal following distance is never less than two seconds. Anyone following at one second is asking to eat the bumper in front of them.
I tried the 1 bar approach behind a truck, the driver got pissed and played games, so I keep it at 2 bars and still do very good. I found that if you can get behind a flatbed and set it at 2 bars, I get the best highway mileage. WHen I had the Pious I got 75 MPG doing this.
One bar is fullish and it makes truck drivers really nervous. I don't think they realize you have automated systems that will adjust your vehicle speed to whatever they are doing. What they are envisioning is that a moment of inattention on your part will cause you to ride up under their rear bumper causing a serious accident.
Even at two bars you really don't have time to react if one of the truck's tires start shredding (I've had it happen).
I try to stay as far awy from trucks as possible to avoid the rocks they toss up. I already have a really tiny chip in the windshield from a semi
Ya nothing will destroy the front paint job or windshield faster than road debris or shredding truck tires.