Acrônimos

Estes são os principais acrônimos dos equipamentos do seu Porsche

Estes são os principais acrônimos dos equipamentos do seu Porsche

ABD

Automatic Differential Brake - Um programa de controle de tração que trabalha

em conjunto com o novo sistema ABS / 5 freio. A ABD está ativo

até 45 mph. O sistema aplica uma pressão de freio para a roda traseira

com a menor quantidade de tração.

ABS

Anti–Lock Brake System - Um Programa de Controle de tração Que trabalha

Conjunto los com o novo Sistema ABS / 5 freio. A ABD está offline Ativo

ATÉ 45 mph. O Sistema Aplica UMA Pressão de freio traseira par uma roda

com uma menor quantidade de tração.

AHK

Anhangerkupplung (trailer coupling)

AWD

All–Wheel Drive

Four–wheel drive in the past has been used to improve vehicles' off–

road capabilities and/or their mobility in winter. Porsche, however, is

a leader in exploiting and refining this principle to obtain optimum

power distribution and traction under all conditions, at all times—

hence the term "all–wheel drive."

ASR

Traction Control

ATF

Automatic Transmission Fluid

BHP

Abbreviation for "brake horsepower," or horsepower as measured with

the engine on a dynamometer, rather than driving the car. There are

two popular standards for the measurement of horsepower—the

American SAE net and the European DIN. DIN may be converted to

SAE by dividing the DIN bhp by 1.014. Although certain European

models may have higher bhp, it may be the same as the U.S. version—

just measured differently.

CAI

Cold Air Intake

CAN

Controller Area Network. A wired network used on cars.

CDC

Compact Disk Changer

CEL

Check Engine Light (same as MIL)

DDD

Dynamic Driving Differential

A mechanical limited slip differential

that exhibits differing lock factors under acceleration and deceleration.

DFI

Direct Fuel Injection - The direct fuel injection (DFI) used in the new 911 flat-six engines is based on homogeneous direct injection. In this process, electro-mechanically controlled fuel injectors inject the fuel directly into the combustion chamber at a pressure of approx. 580 psi to 1740 psi (40 to 120 bar) and with millisecond accuracy as required by the respective driving state. The mixture of air and fuel is distributed as evenly as possible in the combustion chamber, thereby allowing optimal combustion.

The spray cone angle and injection-jet orientation have been optimized to achieve optimum homogenization in the entire operating range. Within the injector, the fuel jet is twisted (rotated around the longitudinal axis). This rotation forms a conical

cloud of fuel. The fine atomization produced in this way allows faster evaporation of the fuel.

The heat energy required to evaporate the fuel is absorbed from the combustion air, thereby cooling the air. This reduces the cylinder charge volume and additional air is drawn in through the open intake valve, which in turn improves cylinder charging.

Lowering the temperature reduces susceptibility to knocking and additionally allows the compression ratio to be increased. The higher compression ratio in turn increases the engine efficiency. This reduces fuel consumption, particularly in the partial-load range.

DME

Digital Motor Electronics

Porsche's engine management system, the

Bosch "Motronic" system, that controls both fuel injection and ignition

functions.

DOHC

Dual Overhead Cam - A system of valve actuation utilizing separate

camshafts for the intake and exhaust valves of a bank of cylinders.

Dr. Ing. h.c. F. Porsche

Doctor of Engineering honoris causa (Honorary Doctor of Engineering)

Ferdinand Porsche.

DSP Digital Sound Processing

DTC Diagnostic Trouble Codes

DOHC

Dual Overhead Cam

A system of valve actuation utilizing separate camshafts for the intake

and exhaust valves of a bank of cylinders.

Egas

an electronic feedback form of gas pedal to throttle control. As

opposed to older cable operated controls.

EGR

Exhaust-Gas Recirculation

EMS

Engine Management System

An automobile's computerized "brain" that monitors key engine

parameters such as rpm, coolant temperature and intake airflow via

sensors, then controls fuel metering, spark timing and other variables

according to preprogrammed "maps".

EOBD

European On Board Diagnosis

EU2/EU3/EU4

European exhaust emissions standard

4WD

Four–Wheel Drive

Literally, all four wheels on a vehicle are driven by the engine through an expanded drivetrain.

GHV

Gurthhohenverstellung (seat belt height adjustment)

GPS

Global Positioning System

GW

Gateway

HFM

Heissfilmluftmassenrnesser (mass air flow sensor) (MAF)

HP ou BHP

Horsepower

Unit for measuring the power output of an engine

IMSA

International Motor Sports Association

The abbreviation for the organization which oversees many racing events for production–based automobiles.

KESSY

Keyless Entry keyless go/control unit

LEV

Low Emission Vehicle

LHD

Left Hand Drive

LSD

Limited–Slip Differential

A type of differential which limits the degree of variation in wheel speed between the two driven wheels, thus reducing wheel spin under conditions of poor traction. The limited–slip differential begins to restrict the power supplied to a spinning wheel by a predetermined amount, reducing the speed of rotation of the spinning wheel to that of the wheel which still has sufficient grip. The result: traction is not interrupted appreciably, allowing the car to keep moving.

Litronic

Porsche's trade name for gas discharge headlamps which employ an electrical arc within a bulb filled with xenon gas. Gas discharge headlamps cast a light that more closely matches the color balance of daylight, thus improving color recognition at night.

LWR

Automatic headlight beam adjustment

MAF

Mass Air Flow sensor (hot-film air-mass metering sensor)

ME

Motronic with E-gas

MIL

Malfunction Indicator Light (same as CEL)

MMI

Man Machine interface

MOST

Media-Oriented Systems Transport. A fiber optic network used on cars.

MY

Model Year (->MY02=to MY02, MY03->=from MY03)

OBD II

On-Board Diagnostics II (version 2)

OBC

On-Board Computer

While many automobiles today have one or more computers aboard, this term usually refers to a "driving computer" that delivers information to the driver such as outside temperature, average fuel economy, odometer, miles remaining at current average fuel economy, etc

OHC

Overhead Cam

A system by which the intake and exhaust valves are actuated directly by the cam, rather than via pushrods.

PAS

Porsche Access System

PAS

Porsche Active System

PASM

Porsche Active Suspension Management

PCCB

Porsche Ceramic Composite Brakes

PCCC

Porsche Ceramic Composite Clutch

PCM

Porsche Communication Management. Currently there are two versions of PCM - PCM and PCM2.

PCNA

Porsche Cars North America

Pcode

Pcode is a Diagnostic Trouble Code catagory (used by OBD II) that designates drive system faults (Pxxxx).

PDAS

Porsche Dynamische Allrad Steuerung (Porsche dynamic four-wheel drive control)

PDCC

Porsche Dynamic Chassis Control

PDI

Pre–Delivery Inspection Center - The Porsche Cars N.A. facilities in Charleston, South Carolina where new Porsches are "logged in" to the U.S. prior to being trucked to the dealer network. Each new Porsche receives a 94–point final quality check, a dynamometer test and brake run–in prior to being detailed and loaded onto special covered transporters for the last leg of their journey from the factory to their new owners.

PDK

Transmission Revolutionary new twin–electric clutch transmission under development at Porsche. The Porsche PDK gearbox allows the driver to concentrate more totally on steering and throttle actions, moving the gear selector from gear to gear without depressing a clutch.

The Porsche Doppelkupplung transmission (PDK) is both a manual and automatic transmission. The special feature of PDK is that two gears can always be engaged one gear is engaged while driving and the next potential gear is already pre-selected.

When shifting, the clutch on the active gear opens while the other clutch engages the pre-selected gear at the same time. This happens under load and so quickly that the power flow is permanently available.

Due to its fast gear changes without any significant power flow interruption, the 7-speed Doppelkupplung transmission offers much better driving dynamics than a conventional manual transmission, with the convenience of an automatic transmission.

PET

Porsche Electronic Parts Catalog

PHC

Porsche Hill Control

The hill-holder function on Tiptronic S (or Porsche Drive-Off Assistant on vehicles with manual transmission) allows the driver to stop on a hill and drive off again without having to operate the brakes. It also enables a steady slow descent down steep slopes or icy mountain roads at speeds of up to 20 km/h (12.5 mph) using engine braking. This is provided by the engine drag-torque control (EDTC) system, which prevents wheel lock-up on overrun or following downshifts on low-grip surfaces. Selective braking is applied to individual wheels resulting in a considerable increase in steering precision.

Pitch

Fore–and–aft vertical motion of an automobile body under conditions of acceleration and road irregularities.

PIWIS

Porsche Integrated Workshop Information System (replaces the PST2)

POSIP

Porsche Side Impact Protection System

PSD

Porsche's Variable Limited Slip Differential

This sophisticated torque distribution technology provides improved traction and handling stability when moving off from a standing start, driving fast and braking on curving roads, and driving on roads with poor traction. The system's control unit modulates hydraulic pressure in response to wheel slip, as recognized by the anti–lock brake system's wheel sensors, and cornering force as "read" by a special sensor. Locking action is automatically varied from 0 to 100%, depending on dynamic operating requirements.

PSE

Porsche Sport Exhaust

PSM

Porsche Stability Management

A highly sophisticated dynamic control technology designed to stabilize the car in an extreme situation by intervening in the engine management and brake systems. Wheel, brake, engine and steering data are compared to a skid sensor's reading of the vehicle's slip angle and rate. To ensure the car maintains an ideal cornering line, brake pressure is applied to individual wheels, engine output is regulated and, with the Tiptronic S transmission, even shift parameters are adjusted.

PST2

Porsche System Tester 2

PTM

Porsche Traction Management (on Cayenne).

The heart of PTM is a permanent four-wheel-drive system with a lockable center differential. This electronically controlled unit distributes torque to the front and rear axles using a standard torque split of 38% to the front, and 62% to the rear. In difficult terrain, the differential can be locked via the PTM control.

PTM also incorporates a two-speed transfer gearbox (with low-range gearing for off-road use), an automatic brake differential (ABD) to optimise traction, as well as anti-slip regulation (ASR) for greater stability under acceleration.

RDK ou TPM

Reifen Druck Kontrolle

Tire Pressure Monitoring system

RF

Returnless Fuel

RHD

Right Hand Drive

RoW

Rest of World

Porsche designates NON US/Canada vehicles as RoW

RPM

Revolutions per minute. Engine performance is given in relation to rpm—for example, "247 bhp (brake horsepower) at 6100 rpm," and "221 lb–ft of torque at 4800 rpm." A tachometer, an instrument providing direct, instantaneous readout of engine rpm, is fitted to most high performance automobiles—and to all Porsches.

SAE

Society of Automotive Engineers - The professional association of transportation industry engineers which sets most automobile industry standards for testing, measuring and designing automobiles and their components in the U.S.

SBS

Sprach-Bedien-System (voice control system)

SCCA

Sports Car Club of America - An organization that sanctions many racing events.

SDARS

Satellite Digital Audio Radio Services -

SSK

Short Shift Kit

Stroke

The distance traveled by the piston in its cylinder from its uppermost to lowermost position.

TC

Traction Control

Tequipment

Porsche's line of accessories available only from authorized Porsche dealers

Tip

Tiptronic

Porsche's automatic transmissions

TOP

Thermodynamically Optimized Porsche engine

The term "TOP"  has been applied to the inline four–cylinder engine used in the Porsche 968 model because of its unusually high compression ratio for a production engine, and its special combustion chamber pattern. The engine has a maintenance–free valve gear, DME engine management with electronic control of fuel injection and ignition, and is ideally equipped for a responsive flow of power, good starting and warmup, high efficiency at minimum possible fuel consumption and low exhaust emissions.

TSB

Technical Service Bulletin. Porsche issues TSB's for part number changes, installation of options and accessories, approved oils, tires, wheels, etc.

TWC

Three-Way Converter (catalytic converter)

VVT

Variable Valve Timing

Consists of the ability to dynamically change intake or exhaust timing as performance or economy needs dictate. Generally controlled by engine speed.

VarioCam®

Porsche's patented system of creating variable valve timing. This system is unique in its simplicity (requires just one moving part) and sophistication (it is regulated by the DME fuel and ignition system).

VarioCam® Plus

Varioram®

Porsche's patented system of variable intake tract length. As rpm rises, the intake tract length is changed by opening valves to maximize torque across the rev range.

VIN

Vehicle Identification Number

WOT

Wide Open Throttle

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