State Of Charge Manipulation - Revision history

Rjf: Reverted edits by 78.25.16.178 (Talk); changed back to last version by Rjf

2010-07-22T08:18:29Z

Reverted edits by 78.25.16.178 (Talk); changed back to last version by Rjf

78.25.16.178 at 06:49, 22 July 2010

2010-07-22T06:49:54Z

Rjf: Unprotected "State Of Charge Manipulation"

2007-10-15T09:15:53Z

Unprotected "State Of Charge Manipulation"

Rjf: Unprotected "State Of Charge Manipulation"

2007-10-15T09:15:26Z

Unprotected "State Of Charge Manipulation"

Rjf: History

2006-10-07T02:08:25Z

History

DavideAndrea: English corrections, clarified the "Contactor Based" mechanism

2006-06-16T18:06:34Z

English corrections, clarified the "Contactor Based" mechanism

Rjf: ==PHEV Applications==

2006-05-26T02:41:19Z

==PHEV Applications==

Rjf: /* Charge Limit Conundrum */ resolution

2006-05-26T01:23:19Z

Charge Limit Conundrum: resolution

Rjf: Category

2006-05-24T02:08:26Z

Rjf: /* Prius */ rearranged

2006-04-28T08:36:12Z

Prius: rearranged

← Older revision		Revision as of 08:18, 22 July 2010
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	===Hybrid-Pack Method===		===Hybrid-Pack Method===
−	~~[http://www.jouercasino.eu/ casino en ligne]~~
	The new Hybrid-Pack Method works much like the [[#Original CalCars Method]] although there is no longer a [[Battery Tap Emulator]]. Rather, the original Prius battery is charged from the new battery in such a way that its voltage is raised enough to cause [[State Of Charge Drift]].		The new Hybrid-Pack Method works much like the [[#Original CalCars Method]] although there is no longer a [[Battery Tap Emulator]]. Rather, the original Prius battery is charged from the new battery in such a way that its voltage is raised enough to cause [[State Of Charge Drift]].

← Older revision		Revision as of 06:49, 22 July 2010
Line 8:		Line 8:

	===Hybrid-Pack Method===		===Hybrid-Pack Method===
		+	[http://www.jouercasino.eu/ casino en ligne]
	The new Hybrid-Pack Method works much like the [[#Original CalCars Method]] although there is no longer a [[Battery Tap Emulator]]. Rather, the original Prius battery is charged from the new battery in such a way that its voltage is raised enough to cause [[State Of Charge Drift]].		The new Hybrid-Pack Method works much like the [[#Original CalCars Method]] although there is no longer a [[Battery Tap Emulator]]. Rather, the original Prius battery is charged from the new battery in such a way that its voltage is raised enough to cause [[State Of Charge Drift]].

@@ Line 23: / Line 23: @@
 ===Original CalCars Method===
 See also:
-* [[PriusPlus#Toyota-Related Controls]]
+* [[PriusPlus History#Toyota-Related Controls]]
-* [[PriusPlus#Control Board]]
+* [[PriusPlus History#Control Board]]
-* [[PriusPlus#Battery ECU SOC Spoofing]]
+* [[PriusPlus History#Battery ECU SOC Spoofing]]
 * The [[Maillist]] archives.

@@ Line 2: / Line 2: @@
 {{State Of Charge}}
-In a [[PHEV]] we usuailly want the SOC to act more like that of a BEV up to a point, we want a lower target SOC so that there is more room to recharge from offboard sources such as the grid.  Though it is also important not to reach to deep a DOD so that the car will still have electric assist power and to prevent problems with certain battery chemestries which can be damaged by deep discharges.  SOC Manipulation or SOC [[WikiPedia:Spoofing|W:Spoofing]] is possible by exploiting [[State Of Charge Drift]].
+In a [[PHEV]] we usually want the SOC to act more like that of a BEV up to a point. We want a lower target SOC so that there is more room to recharge from offboard sources such as the AC power grid.  Though it is also important not to reach too deep a DOD so that the car will still have electric assist power and to prevent problems with certain battery chemistries which can be damaged by deep discharges.  SOC Manipulation or SOC [[WikiPedia:Spoofing|W:Spoofing]] is possible by exploiting [[State Of Charge Drift]].
 ==Prius==
-Prius PHEV Implamentations of SOC Manipulation.
+Prius PHEV Implementations of SOC Manipulation.
 ===Hybrid-Pack Method===
-The new Hybrid-Pack Method works much like the [[#Original CalCars Method]] although there is no longer a [[Battery Tap Emulator]].  Rather the original Prius battery is charged from the new battery in such a way that it's voltage is raised enough to cause [[State Of Charge Drift]].
+The new Hybrid-Pack Method works much like the [[#Original CalCars Method]] although there is no longer a [[Battery Tap Emulator]].  Rather, the original Prius battery is charged from the new battery in such a way that its voltage is raised enough to cause [[State Of Charge Drift]].
 ====Contactor Based====
-A contactor or contactor and resistor are closed on a SOC driven duty cycle which parallels and thus charges the original battery from the new battery simply due to the voltage differential of the two batteries.  See [[Prius PHEV Battery Options#Contactor Based]] for more battery pack details.
+A contactor (or contactor and resistor) is opened and closed with a duty cycle which depends on the SOC. The added battery parallels the original battery, and charges it simply as a consequence of the fact that its voltage is higher.  See [[Prius PHEV Battery Options#Contactor Based]] for more battery pack details.
 ''The contactors and resistor are driven in this manner to accomplish the desired SOC level of ~70-73%...''

@@ Line 5: / Line 5: @@
 ==Prius==
 See also:
 * [[PriusPlus#Toyota-Related Controls]]
@@ Line 11: / Line 28: @@
 * The [[Maillist]] archives.
-===Charge Limit Conundrum===
+====Charge Limit Conundrum====
 '''The CCL issue is being resolved via the [[Prius PHEV#Hybrid-Pack Method]].'''
@@ Line 22: / Line 39: @@
 * No matter what real SOC is, a major problem is that adjusting perceived SOC anywhere near 80% automatically causes CCL to decrease well below 50%, prohibiting EV operations and causing poor drivability.
-===SOC Spoofing===
+====SOC Spoofing====
 The Prius' battery management computer (BMS, called the Battery ECU) communicates to the main hybrid computers via the CAN bus.  It indicates battery voltage, current, temperature, and its estimates of state-of-charge (SOC), and maximum allowable charge and discharge current.
@@ Line 39: / Line 56: @@
 Because of all of the above, CalCars' overall [[Prius PHEV Schematics|PRIUS+ circuit diagram]] is still in flux, and definitive answers about it are as yet unavailable.
-===SOC Management===
+====SOC Management====
 See also [[Prius PHEV User Interfaces]] & [[Prius PHEV Pseudo Code]]

← Older revision	Revision as of 09:15, 15 October 2007
(No difference)

← Older revision		Revision as of 01:23, 26 May 2006
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	===Charge Limit Conundrum===		===Charge Limit Conundrum===
		+	'''The CCL issue is being resolved via the [[Prius PHEV#Hybrid-Pack Method]].'''
		+
	Per [[PriusPlus_Maillist:2006./4./0]] [http://autos.groups.yahoo.com/group/priusplus/message/561 Y!:561] & [[EAA-PHEV_Maillist:2006./4./45]] [http://autos.groups.yahoo.com/group/eaa-phev/message/174 Y!:174]		Per [[PriusPlus_Maillist:2006./4./0]] [http://autos.groups.yahoo.com/group/priusplus/message/561 Y!:561] & [[EAA-PHEV_Maillist:2006./4./45]] [http://autos.groups.yahoo.com/group/eaa-phev/message/174 Y!:174]

← Older revision		Revision as of 02:08, 24 May 2006
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	* Electric (e.g. red for discharge, green for charge): vertical: HV battery voltage; horizontal: HV battery current (absolute value)		* Electric (e.g. red for discharge, green for charge): vertical: HV battery voltage; horizontal: HV battery current (absolute value)
	The areas can be calibrated so that they show the relative power being produced by the electric motor vs. the engine. The same pair of rectangles could display and compare the power going into regenerative braking vs. that being wasted in the friction brakes.		The areas can be calibrated so that they show the relative power being produced by the electric motor vs. the engine. The same pair of rectangles could display and compare the power going into regenerative braking vs. that being wasted in the friction brakes.
		+
		+	[[Category:PHEV]]

@@ Line 10: / Line 10: @@
 * [[PriusPlus#Battery ECU SOC Spoofing]]
 * The [[Maillist]] archives.
 ===SOC Spoofing===
@@ Line 52: / Line 61: @@
 * Electric (e.g. red for discharge, green for charge):  vertical: HV battery voltage; horizontal:  HV battery current (absolute value)
 The areas can be calibrated so that they show the relative power being produced by the electric motor vs. the engine.  The same pair of rectangles could display and compare the power going into regenerative braking vs. that being wasted in the friction brakes.