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kismetcapitan · 2nd July 2009, 08:34 PM

this, btw, has made me wonder why starter motors have been used in double duty as alternators as well? It'd just take some simple electrical switching - discharge on startup, then without disengaging the motor pinion gear, switch to generation. It doesn't necessarily save anything in terms of parasitic loss, but it sure does simplify things by taking one unit out of the accessory belt drives and saves a bit of weight as well. Since it hasn't been done...there must be a good reason why?

2nd July 2009, 08:34 PM	#4 (permalink)
kismetcapitan kismetcapitan is like trees in November... Toluene Junkie Join Date: Nov 2005 Location: Seoul Korea Cars owned: BNR32, BMW F800S, BMW S1000RR Posts: 8,267	this, btw, has made me wonder why starter motors have been used in double duty as alternators as well? It'd just take some simple electrical switching - discharge on startup, then without disengaging the motor pinion gear, switch to generation. It doesn't necessarily save anything in terms of parasitic loss, but it sure does simplify things by taking one unit out of the accessory belt drives and saves a bit of weight as well. Since it hasn't been done...there must be a good reason why? __________________ There are only three true sports: mountain climbing, motor racing, and bullfighting. Everything else is merely a game.