Andy Drummond Posted March 9, 2016 Report Share Posted March 9, 2016 Hi Link Team Looking into 3 ways to improve the ecu during starting.As I run a race car, it has a small battery (some are total loss ie NO alternator).As weight is evil.During a race should you stop in the middle of the track it is very important to restart the engine as easily and quickly asap. Request 1/Under the Ignition mode “Direct Spark” during engine starting, operate ignition in “Wasted Mode”. Benefit;A/ Reduced cranking time. Less than half the time compared to direct spark trigger initialisation. Down to between ½ to 1 engine rev.B/ Each cylinder will burn all its priming fuel.C/ Get more starts from one battery charge.D/ Faster starting, again very critical if engine has stalled.E/ Does not require trigger 2 setup to start the engine. May help during initial setup of the system etc.F/ Most new cars operate like this now. Request 2/To RESET “Pre-Crank Prime” if rpm = 0 & 1 second delay & Prime Mode = Ign Start Position. Benefit;a/ Allow for quick restart of engine. Easily and quick by one step in turning on the starter (Ign Start Position).B/ Again if driver stalls engine, all he/she needs to do is push the starter button.C/ Fuel priming is critical to have happening 100% of the time to get a quick engine start. Request 3/If using Fuel Equation Mode = Modelled. The “Post Start Enrichment” is NOT required. But because the Post Start Decay Time Table has minimum of 1 second (divide by zero). The Post start enrichment always operates for minimum of 1 sec.Can a condition be add If “Post Start Decay Time” less than 1 sec Then skip Post Start decaying. Benefit;a/ One less parameter/ tables to setup and tune.B/ Move consistent fuelling during initial starting/running. Also the above will help if start/stop or touch start control is used.Any questions and comments please ask. In advance thanks again for looking into these requests. CheersAndy Drummond Quote Link to comment Share on other sites More sharing options...
Scott Posted March 9, 2016 Report Share Posted March 9, 2016 HI Andy,Thanks for the suggestions, I will pass them on to the engineering team. Quote Link to comment Share on other sites More sharing options...
Adturb Posted March 13, 2016 Report Share Posted March 13, 2016 Like the sound of request 1! Quote Link to comment Share on other sites More sharing options...
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