Lotus DPM - Revision history

Thorburn at 08:09, 5 August 2015

2015-08-05T08:09:44Z

← Older revision		Revision as of 08:09, 5 August 2015
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	{{TOC right}}		{{TOC right}}
	Not to be confused with the SELOC meaning for [[DPM]], the Dynamic Performance Management system is Lotus' branding for the cars electronic stability control systems, consisting of:		Not to be confused with the SELOC meaning for [[DPM]], the Dynamic Performance Management system is Lotus' branding for the cars electronic stability control systems, consisting of:
	* Corner Brake Control (CBC) - Helps when the car is heavily loaded at the front under partial braking and oversteer comes into play. The system will reduce brake pressure on an inside wheel or increase the braking pressure on the outside front wheel before the car becomes out of shape.		* '''Corner Brake Control (CBC)''' - Helps when the car is heavily loaded at the front under partial braking and oversteer comes into play. The system will reduce brake pressure on an inside wheel or increase the braking pressure on the outside front wheel before the car becomes out of shape.
	* Drag Torque Control (DTC) - Lifting too fast off the throttle or a over-aggressive downshifts can lead to the engine braking the wheels too quickly causing slip or oversteer when cornering. This system can apply partial throttle to ensure stability in these situations.		* '''Drag Torque Control (DTC)''' - Lifting too fast off the throttle or a over-aggressive downshifts can lead to the engine braking the wheels too quickly causing slip or oversteer when cornering. This system can apply partial throttle to ensure stability in these situations.
	* Electronic Differential Lock (EDL) - If there is a road situation which leads to a wheel with less grip spinning then braking force is applied to this wheel to allow torque to be sent to the other wheel. This means better cornering performance and acceleration on surfaces where one wheel can grip and the other cannot.		* '''Electronic Differential Lock (EDL)''' - If there is a road situation which leads to a wheel with less grip spinning then braking force is applied to this wheel to allow torque to be sent to the other wheel. This means better cornering performance and acceleration on surfaces where one wheel can grip and the other cannot.
	* Traction Control System (TCS) - Ensures no wheelspin under heavy acceleration.		* '''Traction Control System (TCS)''' - Ensures no wheelspin under heavy acceleration.
	* Electronic Stability Control (ESC)/ Vehicle Dynamic Control (VDC) - Applies subtle brake pressure at the required wheel when the car becomes unstable.		* '''Electronic Stability Control (ESC) / Vehicle Dynamic Control (VDC)''' - Applies subtle brake pressure at the required wheel when the car becomes unstable.
	* Anti-lock Braking System (ABS)* - Common system on cars nowadays to reduce brake pressure if available braking torque is more than conditions allow to ensure that the shortest stopping distance possible is attained under all road conditions.		* '''Anti-lock Braking System (ABS)*''' - Common system on cars nowadays to reduce brake pressure if available braking torque is more than conditions allow to ensure that the shortest stopping distance possible is attained under all road conditions.
	* Hydraulic Brake Assist (HBA)* - Detects emergency braking and increase braking if required to ensure maximum possible braking is used.		* '''Hydraulic Brake Assist (HBA)*''' - Detects emergency braking and increase braking if required to ensure maximum possible braking is used.
	* Electronic Brake Distribution (EBD)* - Enhances stability by limiting rear brake pressures if the ABS is close to being activated when not required.		* '''Electronic Brake Distribution (EBD)*''' - Enhances stability by limiting rear brake pressures if the ABS is close to being activated when not required.
	* Understeer Recognition		* '''Understeer Recognition'''
	All apart from * can be completely switched off		All apart from * can be completely switched off

Thorburn: Acronym descriptions added.

2015-08-05T08:08:44Z

Acronym descriptions added.

← Older revision		Revision as of 08:08, 5 August 2015
Line 1:		Line 1:
	{{TOC right}}		{{TOC right}}
	Not to be confused with the SELOC meaning for [[DPM]], the Dynamic Performance Management system is Lotus' branding for the cars electronic stability control systems, consisting of:		Not to be confused with the SELOC meaning for [[DPM]], the Dynamic Performance Management system is Lotus' branding for the cars electronic stability control systems, consisting of:
	* Corner Brake Control (CBC)		* Corner Brake Control (CBC) - Helps when the car is heavily loaded at the front under partial braking and oversteer comes into play. The system will reduce brake pressure on an inside wheel or increase the braking pressure on the outside front wheel before the car becomes out of shape.
	* Drag Torque Control (DTC)		* Drag Torque Control (DTC) - Lifting too fast off the throttle or a over-aggressive downshifts can lead to the engine braking the wheels too quickly causing slip or oversteer when cornering. This system can apply partial throttle to ensure stability in these situations.
	* Electronic Differential Lock (EDL)		* Electronic Differential Lock (EDL) - If there is a road situation which leads to a wheel with less grip spinning then braking force is applied to this wheel to allow torque to be sent to the other wheel. This means better cornering performance and acceleration on surfaces where one wheel can grip and the other cannot.
	* Traction Control System (TCS)		* Traction Control System (TCS) - Ensures no wheelspin under heavy acceleration.
	* Electronic Stability Control (ESC)		* Electronic Stability Control (ESC)/ Vehicle Dynamic Control (VDC) - Applies subtle brake pressure at the required wheel when the car becomes unstable.
	* Anti-lock Braking System (ABS)*		* Anti-lock Braking System (ABS)* - Common system on cars nowadays to reduce brake pressure if available braking torque is more than conditions allow to ensure that the shortest stopping distance possible is attained under all road conditions.
	* Hydraulic Brake Assist (HBA)*		* Hydraulic Brake Assist (HBA)* - Detects emergency braking and increase braking if required to ensure maximum possible braking is used.
	* Electronic Brake Distribution (EBD)*		* Electronic Brake Distribution (EBD)* - Enhances stability by limiting rear brake pressures if the ABS is close to being activated when not required.
	* Understeer Recognition		* Understeer Recognition
	All apart from * can be completely switched off		All apart from * can be completely switched off

Thorburn: /* Exige S */

2013-02-26T20:28:31Z

Exige S

← Older revision		Revision as of 20:28, 26 February 2013
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	Touring mode puts all DPM systems in to their fully activated mode and is designed for normal daily driving conditions.		Touring mode puts all DPM systems in to their fully activated mode and is designed for normal daily driving conditions.

	'''ABS''': Constant		'''ABS''': Constant<br />
	'''Max Engine RPM''': 6800rpm		'''Max Engine RPM''': 6800rpm<br />
	'''Throttle progression''': Standard		'''Throttle progression''': Standard<br />
	'''Engine Protection Valve (Exhaust valve) strategy''': EPV opens at high throttle/RPM applications		'''Engine Protection Valve (Exhaust valve) strategy''': EPV opens at high throttle/RPM applications<br />
	'''DPM Characteristics''': Understeer recognition on, managed slip threshold		'''DPM Characteristics''': Understeer recognition on, managed slip threshold

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	Sport Mode increases the traction slip thresholds and removes understeer recognition, allowing the driver more vehicle control before an intervention is required.		Sport Mode increases the traction slip thresholds and removes understeer recognition, allowing the driver more vehicle control before an intervention is required.

	'''ABS''': Constant		'''ABS''': Constant<br />
	'''Max Engine RPM''': 7200rpm		'''Max Engine RPM''': 7200rpm<br />
	'''Throttle progression''': Increased response		'''Throttle progression''': Increased response<br />
	'''Engine Protection Valve (Exhaust valve) strategy''': EPV opens from medium throttle applications/engine speeds		'''Engine Protection Valve (Exhaust valve) strategy''': EPV opens from medium throttle applications/engine speeds<br />
	'''DPM Characteristics''': Understeer recognition switched off. Increased slip thresholds and increased yaw angle available		'''DPM Characteristics''': Understeer recognition switched off. Increased slip thresholds and increased yaw angle available

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	Only available on cars fitted with optional Race Pack.		Only available on cars fitted with optional Race Pack.

	'''ABS''': Constant		'''ABS''': Constant<br />
	'''Max Engine RPM''': 7200rpm		'''Max Engine RPM''': 7200rpm<br />
	'''Throttle progression''': As Sport		'''Throttle progression''': As Sport<br />
	'''Engine Protection Valve (Exhaust valve) strategy''': EPV permanently open		'''Engine Protection Valve (Exhaust valve) strategy''': EPV permanently open<br />
	'''DPM Characteristics''': Understeer recognition switched off. ESP intervention level set high to allow race traction control to function. The traction system learns and calculates available levels of grip and optimises the correct level of torque and EDL intervention to deliver maximum traction to the driver		'''DPM Characteristics''': Understeer recognition switched off. ESP intervention level set high to allow race traction control to function. The traction system learns and calculates available levels of grip and optimises the correct level of torque and EDL intervention to deliver maximum traction to the driver

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	All assists disabled except those related to braking.		All assists disabled except those related to braking.

	'''ABS''': Constant		'''ABS''': Constant<br />
	'''Max Engine RPM''': 7200rpm		'''Max Engine RPM''': 7200rpm<br />
	'''Throttle progression''': As Sport		'''Throttle progression''': As Sport<br />
	'''Engine Protection Valve (Exhaust valve) strategy''': EVP permanently open		'''Engine Protection Valve (Exhaust valve) strategy''': EVP permanently open<br />
	'''DPM Characteristics''': TC.ESP is completely switched off		'''DPM Characteristics''': TC.ESP is completely switched off
	{{clr}}		{{clr}}

Thorburn: /* Exige S */

2013-02-26T20:28:03Z

Exige S

← Older revision		Revision as of 20:28, 26 February 2013
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	Touring mode puts all DPM systems in to their fully activated mode and is designed for normal daily driving conditions.		Touring mode puts all DPM systems in to their fully activated mode and is designed for normal daily driving conditions.

			'''ABS''': Constant
			'''Max Engine RPM''': 6800rpm
			'''Throttle progression''': Standard
			'''Engine Protection Valve (Exhaust valve) strategy''': EPV opens at high throttle/RPM applications
			'''DPM Characteristics''': Understeer recognition on, managed slip threshold

	===Sport Mode===		===Sport Mode===

	Sport Mode increases the traction slip thresholds and removes understeer recognition, allowing the driver more vehicle control before an intervention is required.		Sport Mode increases the traction slip thresholds and removes understeer recognition, allowing the driver more vehicle control before an intervention is required.

			'''ABS''': Constant
			'''Max Engine RPM''': 7200rpm
			'''Throttle progression''': Increased response
			'''Engine Protection Valve (Exhaust valve) strategy''': EPV opens from medium throttle applications/engine speeds
			'''DPM Characteristics''': Understeer recognition switched off. Increased slip thresholds and increased yaw angle available

	===Race Mode===		===Race Mode===

	Only available on cars fitted with optional Race Pack.		Only available on cars fitted with optional Race Pack.

			'''ABS''': Constant
			'''Max Engine RPM''': 7200rpm
			'''Throttle progression''': As Sport
			'''Engine Protection Valve (Exhaust valve) strategy''': EPV permanently open
			'''DPM Characteristics''': Understeer recognition switched off. ESP intervention level set high to allow race traction control to function. The traction system learns and calculates available levels of grip and optimises the correct level of torque and EDL intervention to deliver maximum traction to the driver

	====Launch Control====		====Launch Control====
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	The launch control system can be [http://www.youtube.com/watch?v=W3wnyLqlSsE seen in action on YouTube].		The launch control system can be [http://www.youtube.com/watch?v=W3wnyLqlSsE seen in action on YouTube].

			====Off====

			All assists disabled except those related to braking.

			'''ABS''': Constant
			'''Max Engine RPM''': 7200rpm
			'''Throttle progression''': As Sport
			'''Engine Protection Valve (Exhaust valve) strategy''': EVP permanently open
			'''DPM Characteristics''': TC.ESP is completely switched off
	{{clr}}		{{clr}}

Thorburn: /* Sport Mode */

2013-02-06T15:18:21Z

Sport Mode

← Older revision		Revision as of 15:18, 6 February 2013
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	===Sport Mode===		===Sport Mode===

	Sport ~~mode relaxes~~ the ~~DPM systems~~.		Sport Mode increases the traction slip thresholds and removes understeer recognition, allowing the driver more vehicle control before an intervention is required.

	===Race Mode===		===Race Mode===

Thorburn at 09:40, 6 February 2013

2013-02-06T09:40:10Z

← Older revision		Revision as of 09:40, 6 February 2013
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	[[image:Exige S DPM Switch.jpg\|right\|thumb\|400px\|Exige S (Prototype) DPM Mode Selector]]		[[image:Exige S DPM Switch.jpg\|right\|thumb\|400px\|Exige S (Prototype) DPM Mode Selector]]
			Unlike the Elise and Evora, the Exige S uses a 3 position rotary switch. The third position, marked with a chequered flag, is used to disable the Lotus DPM assists entirely, and to select Race Mode in cars equipped with the option.

			The switch does not stay in the third position and returns to the centre after being selected by twisting and holding the switch - so if the car is restarted it will revert to Sport Mode, not the previously selected Race Mode or DPM Off. This is important to remember as Sport Mode is LESS restrictive than Race Mode.

	===Touring Mode===		===Touring Mode===

Thorburn: /* Exige S */

2013-01-13T00:00:21Z

Exige S

← Older revision		Revision as of 00:00, 13 January 2013
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	==Exige S==		==Exige S==

			[[image:Exige S DPM Switch.jpg\|right\|thumb\|400px\|Exige S (Prototype) DPM Mode Selector]]

	===Touring Mode===		===Touring Mode===
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	The launch control system can be [http://www.youtube.com/watch?v=W3wnyLqlSsE seen in action on YouTube].		The launch control system can be [http://www.youtube.com/watch?v=W3wnyLqlSsE seen in action on YouTube].
			{{clr}}

	[[Category:Lotus Evora]]		[[Category:Lotus Evora]]

Thorburn: /* Elise */

2013-01-12T23:47:15Z

Elise

← Older revision		Revision as of 23:47, 12 January 2013
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	==Elise==		==Elise==

			[[image:Elise Sport Button.jpg\|right\|thumb\|400px\|Elise DPM Sport Button]]

	===Sport Mode===		===Sport Mode===

	Only available on cars fitted with optional Sport Pack.		Only available on cars fitted with optional Sport Pack.
			{{clr}}

	==Evora==		==Evora==

Thorburn: /* Evora */

2013-01-12T23:46:25Z

Evora

← Older revision		Revision as of 23:46, 12 January 2013
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	Only available on cars fitted with optional Sport Pack (Standard on [[Models_-_Evora#Evora_S \| Evora S]]).		Only available on cars fitted with optional Sport Pack (Standard on [[Models_-_Evora#Evora_S \| Evora S]]).

			{{clr}}

	==Exige S==		==Exige S==

Thorburn: /* Evora */

2013-01-12T23:46:15Z

Evora

← Older revision		Revision as of 23:46, 12 January 2013
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	==Evora==		==Evora==

			[[image:Evora IPS Sport Button.jpg\|right\|thumb\|400px\|Evora IPS Sport Button]]

	===Sport Mode===		===Sport Mode===