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Reducing fuel consumption and emissions are two of the top-priority environmental objectives at Volvo Cars.
One of the most promising technologies in this sphere is the Integrated Starter Generator (ISG) developed by Volvo Cars and demonstrated at the Frankfurt Motor Show.
In urban driving with its many stops and starts, decelerations and accelerations, ISG can cut fuel consumption by as much as 20 per cent, as well as significantly reducing emissions.
The ISG unit displayed here is installed between the engine and gearbox, linked directly to the crankshaft. ISG replaces both the starter motor and the alternator. In addition, ISG supplies power in certain operating conditions, thereby saving fuel, as not all the power is supplied by the engine alone.
The ISG system employs 42-volt technology and has a separate battery that is placed in the spare wheel bay in the luggage compartment.
Can be integrated in any Volvo
There is no need to develop a new car model or significantly modify an existing car &#; ISG can be integrated with most of Volvo&#;s current car models. It is a very cost-effective system compared with other solutions designed to benefit the environment, such as full hybrid powertrains.
A Volvo with ISG looks and behaves pretty much like a standard Volvo. The most noticeable differences are that the engine stops as soon as the car comes to a standstill and the longer intervals between visits to the petrol station&#;
The engine switches off when the car comes to a standstill
In a car with ISG, the engine switches off completely when the car comes to a standstill, instead of continuing to use fuel at idling speed &#; for instance, when waiting at a traffic light.
When the traffic light turns green and the driver releases the brake pedal to get the car moving, the ISG car starts up instantly and almost noiselessly. ISG supplies the engine with additional power at the moment the car takes off and also during acceleration &#; when the car would otherwise require an extra portion of fuel to be injected into the engine.
For the user who drives a great deal in urban traffic, this is clear evidence of the environmental benefits of the ISG car. The engine is simply not used when the car is not moving.
More alert than a conventional car
ISG remains active throughout the driving process &#; for example, during overtaking or at other times when its power is needed or favourable.
In certain situations, the ISG-equipped car feels even more alert than a corresponding car with conventional power. For instance, you can drive at low revs in a high gear with maintained response and driveability.
The basic principle behind ISG is that the combustion engine should work as little and as effectively as possible in order to cut fuel consumption and reduce exhaust emissions.
The battery receives free energy
When you remove your foot from the accelerator pedal to slow down, the forward movement of the car powers the ISG unit, which in turn recharges the 42-volt battery with free energy.
ISG is far more efficient than a conventional alternator and this also contributes to the low fuel consumption.
It also means that systems such as the power steering and air conditioning, which in present-day cars are powered by the combustion engine, can instead be powered by electricity.
The air-conditioning system thus continues to remain active even when the engine switches off. This is a benefit that many of Volvo&#;s competitors cannot offer in their own ISG projects.
Additional advantages from 42-volt electrics
In addition to powering the ISG system, 42-volt technology provides other benefits. The higher voltage means that the new technologies that are being used on an increasing scale in cars, in the form of advanced safety and information systems, for example, have a more secure current supply.
In addition, it will be possible to integrate far more electrically-powered comfort-enhancing features. How about a cup-holder that cools your soft drink &#; or keeps your coffee hot? All this is possible with 42-volt technology. Development by Volvo and the FMC is already under way.
ISG in a nutshell
Stop&#;
The engine shuts off instead of idling &#; which means zero fuel consumption and emissions when the car is standing still.
&#;and go
Quick start with low emissions, combined with a safe take-off.
The start is also quieter.
Cruising
Offers comfort and driveability even when driving at low revs in high gear, which saves fuel.
Power assistance
The ISG unit adds extra power when it is needed &#; without additional fuel. This cuts consumption as well as emissions.
Electricity generation
The ISG generates electric power more effectively than an ordinary alternator. During slow-down, "free" energy is recovered and stored in the 42-volt battery.
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*All Pictures shown are for illustration purposes only. Actual product may vary due to enhancement*
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Master industrial generator sets are fully integrated power generation systems that provide optimum performance, dependability, and versatility for standby power, prime power and continuous power applications.
Powered by Volvo Penta Engine, Stamford Alternator, and Deepsea Control Panel
Included Features
Technologically advanced
Remote Wifi ControllerNext-Generation
Brushless Stamford CSA Approved AlternatorInbuilt Webasto Style Coolant Heater
to prevent cold starts and increase the engine's longevity
Silent
Soundproof Weather Protection Canopy/EnclosureStandard
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8 Hour Dual Wall Base Fuel TankElectronic Speed Governor
Prime power
This rating is for continuous electrical power supply (at variable load). There is no limit on the annual hours of operation, and 10% overload power can be supplied for 1 hour in 12.
Standby power
This rating is for the supply of continuous electrical power (at variable load) in the event of a utility power failure. No overload is permitted.
Features
Every generator set is subjected to a comprehensive test program which includes 50% load, 75% load, 100% load, 110% load and the checking and proving of all control and safety shut-down functions
24V DC start motor
Equipped 24V high-performance maintenance-free lead-acid starting batteries
Equipped with industrial silencer and flexible exhaust hose
Designed to Comply with ISO/GB, NEC, CEC
Volvo Penta Engine Technical Data
Model
TAD550GE
Manufacturer
Volvo Penta
Number of Cylinders
4 Cylinders
Cycle
4 Stroke
Aspiration
Wastegate Turbocharger
Bore x Stroke (mm x mm)
108 x 130
Displacement
4.76 L
Compression Ratio
18:1
Prime Power with Fan / Speed
85 kW/rpm
Standby Power with Fan / Speed
93kW/rpm
Speed Governor
ECM
Cooling System
Forced Liquid Cooling Cycle
Steady Speed Drop
&#;1%
Total Lubrication System Capacity
13 L
Fuel Consumption at 100% Load
218 g/kW h
Starter Motor
DC24V
Alternator
DC24V
Stamford Alternator Technical Data
Alternator Model
UCI224 CSA Approved
Power
75 kW
Frequency/Speed
60Hz/rpm
Exciter Type
Single Bearing, Brushless, Self-excited
Power Factor
0.8
Voltage Adjust Range
&#;5%
Voltage Regulation NL-FL
&#;+1%
Insulation Grade
H
Protection Grade
IP23
Phase
1
Deepsea Control Panel Technical Data
Model
DSE
The control module gives digital readouts of (Including but not limited to):
Generator voltage
Output frequency
Engine speed
Battery voltage
Engine hours run
The control module has indicators for the following failure information (Including but not limited to):
Overspeed/underspeed
Emergency stop
Low oil pressure
High water temperature
Failure to start
Battery charger failure
Automatic shutdown occurs under (Including but not limited to):
Low engine oil pressure
High engine water temperature
Overspeed/underspeed
Failure to start after three attempts
Options/Add-Ons Available
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