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The BMW Range
3 Series
F30, F34
Auto Start function - jerky ride
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<blockquote data-quote="vin75" data-source="post: 691731" data-attributes="member: 36796"><p>Merc's ECO Start Stop tech data : </p><p>"How the ECO start/stop system works in detail: as a general principle, the engine is switched off every time the vehicle comes to a standstill (auto-stop function. Restarting the engine (auto-starting function) takes place almost <strong>imperceptibly</strong>; and moving off without any noticeable time lag compared to a stationary vehicle with its engine running. This rapid action is attributable to two special features: a <strong>crankshaft Hall sensor </strong>which is able to identify the rotational direction of the crankshaft enables the engine control unit to identify the cylinder in which the piston is ideally positioned for starting. The fuel is injected into this cylinder first, thereby speeding up the starting process. An <strong>additional electric transmission oil pump </strong>supplies the clutches of the automatic transmission with oil pressure prior to starting, so as to enable a swift resumption of the journey after direct starting of the combustion engine via the ECO start/stop function"</p><p></p><p>..key word "imperceptibly", not the "jolt thru the rear" experience i guess most of us F30 owners have with the ASS..</p><p>What an ASS...</p></blockquote><p></p>
[QUOTE="vin75, post: 691731, member: 36796"] Merc's ECO Start Stop tech data : "How the ECO start/stop system works in detail: as a general principle, the engine is switched off every time the vehicle comes to a standstill (auto-stop function. Restarting the engine (auto-starting function) takes place almost [B]imperceptibly[/B]; and moving off without any noticeable time lag compared to a stationary vehicle with its engine running. This rapid action is attributable to two special features: a [B]crankshaft Hall sensor [/B]which is able to identify the rotational direction of the crankshaft enables the engine control unit to identify the cylinder in which the piston is ideally positioned for starting. The fuel is injected into this cylinder first, thereby speeding up the starting process. An [B]additional electric transmission oil pump [/B]supplies the clutches of the automatic transmission with oil pressure prior to starting, so as to enable a swift resumption of the journey after direct starting of the combustion engine via the ECO start/stop function" ..key word "imperceptibly", not the "jolt thru the rear" experience i guess most of us F30 owners have with the ASS.. What an ASS... [/QUOTE]
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Auto Start function - jerky ride
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