Originally posted by -SpectraL
Many people think that long-term use may induce additional wear due to lack of oil lubrication. For the crankshaft bearing half shells and the big end bearings this can translate into frequent high-speed rotary movement before a hydrodynamic film is established. During this phase of boundary lubrication, metal-to-metal contact can occur between the crankshaft surface and the bearing's sliding surface. This was not an issue while the number of engine restarts totaled what was generally understood to be a normal magnitude. However, in a vehicle with a start-stop system this effect can necessitate new technological solutions to avoid premature bearing wear, depending on the driving cycle. Consequently, future engines for start-stop applications need to be designed for 250,000 to 300,000 starts. Traditional bearing shells with aluminum or copper lining show severe wear after only 100,000 cycles.
Some implementations don't use a starter motor[citation needed], eliminating concerns of starter motor wear. The Mazda i-stop used in the Mazda3/Axela line (in Europe and JDM) uses combustion to assist the starter motor by sensing the position of the piston in the cylinder. They claim quieter and quicker engine restart within 0.35 seconds.[44]
Start-stop systems are heavily reliant on the battery. Testing indicates that AGM batteries diminish in their ability to support start-stop functionality over time.[45] While alternatives exist (NiZn, Lithium-Ion, supercapacitors,[46] PbC), virtually all automakers continue to use conventional AGM lead acid batteries.
Some car makers such as Suzuki have one lithium-ion battery inside the car.[37]
thats funny. current production vehicles are already using the pinnacle of bearing technology using assorted coatings and ultra-exotic metal alloys to feed normal IC engines. now they need even more life/reliability out of them to support this start/stop nonsense, yet the technology doesnt exist.
ive been googling this and after reading through about ten sites im even more convinced start/stop technology is a rip roaring rump raping jamboree. i enjoyed reading about the multitude of s/s victims describing how their batteries died in cold weather due to the inadequate charging of their vehicle electrical systems. i most enjoyed reading about the overpriced BMW owners whos batteries dont have enough juice to start their junk in them middle of traffic in zero-degree temperatures.
Interesting facts about start-stop technology
Start-stop systems require a battery with modern technology, because normal starter batteries are not designed to meet the higher demands of these vehicles.
The architecture of the electrical system in modern vehicles requires a compatible battery technology in order to function properly and reliably. For this reason, in many vehicles, new batteries must be “registered” – the Battery Management System (BMS) must know what type of battery is installed in the vehicle in order to exploit its full potential. If an incorrect battery is installed in the vehicle or is not correctly registered, this can result in premature battery deterioration and another breakdown.
For this reason, only EFB or AGM batteries should be installed in vehicles with automatic stop-start systems. If an AGM battery is already installed in the vehicle, it must always be replaced with another AGM battery.
this is hilarious. the complications and difficulties associated with something so ridiculously trivial and utterly insignificant in actual results...and the retards think this was a good idea.
this is why selective eugenics and mass-sterilization needs to become a societal norm again.
