Stop-Start Systems

[ER-3682]

I have been using the i-Stop in my Mazda 6 for the past over 3 Years,clocked a total of 185 hours of "stop" time,the only down point is it needs a very expensive battery & rather short life[18 months]. 

[Hoonigan]

I'm making a smart guess that the piston is somewhere over the TDC of the stroke.

 

So the piston is about to be released downwards as soon as it is fired.

 

Why it didn't had enough force to push it all the way down ? Well, another smart guess from me is that the other cylinder that would be pushed up to compress its own compartment would set an equilibrium such that it didn't allow it to push all the way down, despite the air and fuel mixture is already in compression.

 

Well, might not be correct. But you guys interested may look for Uncle Google for answer. But my idea makes sense.

[Check13]

totally turn off by the A S S or auto start stop.

u cant save much especially if u r on diesel which is already so cheap.

it's more a marketing and over glorified function.

[Watwheels]

totally turn off by the A S S or auto start stop.

u cant save much especially if u r on diesel which is already so cheap.

it's more a marketing and over glorified function.

 

It's a useful function for the car makers that's for sure. This is how they pass the CO2 emission test. In city driving the idling engine at red lights produce more unburnt fuel, more CO2 and more toxic gases. Hence shutting down the engine at idle stop the production of harmful gases and save fuel. Traditionally city driving mpg or emssion figures score badly but with the start-stop system the figures improve a lot. It looks a lot better on paper. It's strictly beneficial to the car makers.

[ER-3682]

Mfg also wanted to do a part to save the Earth.

[K20VTEC]

Honda Jap says that their start-stop systems uses the starter motor to restart the engine. However, they have designed the starter motor with the start-stop system in mind. So it's probably a beefed up starter.

[ER-3682]

Honda Jap says that their start-stop systems uses the starter motor to restart the engine. However, they have designed the starter motor with the start-stop system in mind. So it's probably a beefed up starter.

I wonder Honda needs a 'special' battery for its Start/Stop system.?Mazda needs a "Q85" battery,which is rare & expensive..  

Edited May 26, 2016 by ER-3682

[Etnt]

After using stop-start then realise:

• Sg traffic really comes to a halt often, whether on highway or small roads.
• Filter lanes and right turn lanes are nightmares.
• Local traffic light takes really long to turn green from red

[inlinesix]

I wonder Honda needs a 'special' battery for its Start/Stop system.?Mazda needs a "Q85" battery,which is rare & expensive..  

 

Most start-stop system requires deep cycle battery.  AGM is just 1 type of deep cycle battery. These battery definitely cost more.

[K20VTEC]

I wonder Honda needs a 'special' battery for its Start/Stop system.?Mazda needs a "Q85" battery,which is rare & expensive..

Vezel does not. Restarting of engine is done using the electical juice in the capacitor as far as im aware. There is no load on the battery in engine bay during start-stop situations.

[ER-3682]

Vezel does not. Restarting of engine is done using the electical juice in the capacitor as far as im aware. There is no load on the battery in engine bay during start-stop situations.

Not for Mazda,if we use normal battery,the i-Stop won't work.

[K20VTEC]

Not for Mazda,if we use normal battery,the i-Stop won't work.

But Mazda's i-Stop as far as I recall does not require the use of starter motor to restart the engine right? Honda uses the starter motor

[ER-3682]

But Mazda's i-Stop as far as I recall does not require the use of starter motor to restart the engine right? Honda uses the starter motor

I heard so.....no need starter motor...I rather have a robust starter with a normal battery,Q85 battery is damm difficult   to get outside & very expensive.  

[Kopites]

Honda Jap says that their start-stop systems uses the starter motor to restart the engine. However, they have designed the starter motor with the start-stop system in mind. So it's probably a beefed up starter.

I concur. Morning it take at least two traffic light distance before stop/start can kick in.

[Mkl22]

I concur. Morning it take at least two traffic light distance before stop/start can kick in.

2 traffic lights is quite fast. No Aircon in morning? Doubt the cabin will be cool enough by then or you set the temps high.

[Kopites]

2 traffic lights is quite fast. No Aircon in morning? Doubt the cabin will be cool enough by then or you set the temps high.

I set at 25 auto. Morning I prefer cool not cold. Hahaha

 

Honestly not much fuel saving I reckon. Just the fact that this car come with such function so just use it. Otherwise I would have gotten other with minimun electronic gadgets.

[Sdf4786k]

toyota has one of the better start stop motor .. almost rolls royce quality of start stop. I suppose the electric motor of the prius helps a seamless transition.

 

Jag is a must have in the XE. If you dont invoke the start stop, the vibration into the cabin is like the olden days crown taxi at the traffic lights.

 

 

Edited May 30, 2016 by Sdf4786k

[K20VTEC]

I concur. Morning it take at least two traffic light distance before stop/start can kick in.

 

It depends on a few conditions. If morning your engine is still cold, start stop will not activate, if cabin temp does not meet aircon set temp, start stop will not activate as well. If you current cabin power usage is higher than capacitor juice available, it won't activate as well.

 

If your car is affected by Honda's recall for Vezel, would be recommended for you to turn off start stop till you get the part replaced.

toyota has one of the better start stop motor .. almost rolls royce quality of start stop. I suppose the electric motor of the prius helps a seamless transition.

 

Jag is a must have in the XE. If you dont invoke the start stop, the vibration into the cabin is like the olden days crown taxi at the traffic lights.

 

Yes that's true. But I noticed that for Prius, when the juice is low or something, when the car restarts, there is also some vibration to the cabin.

 

What i'm curious about hybrid is lets say when you start your engine in the morning, you use electric power, when you reach your expressway, your car has been using electric power and when you accelerate hard to join the expressway, won't the engine not be up to operating temp? Is the oil pump electrically working the moment you start the engine??