Volvo 7700 Hybrid
Getting there
by Hybrid
Technology
the
green
challenge
Authorities all over the world set strict environmental
boundaries for public transports. Energy use, pollution
and global warming are factors influencing all
areas of civil planning and development.
Public transport is no exception. To us,
environmental care, and efficiency in moving
people, are challenges but also exciting
opportunities. That’s why green efficiency
is part of everything we do.
When Volvo introduced hybrid buses it meant a significant step ahead. In our research and development,
new materials, advanced technology and alternative
fuels are vital. And, as always with Volvo, we never
compromise on reliability, safety and ergonomics.
Our customers, the drivers and passengers judge
whether our efforts are worthwhile. By doing so, they
help us move our goals forward. Through close co­
operation we are convinced that we’re getting there.
Getting there, together.
A Volvo is
more
than a bus
As a matter of fact there’s a lot more to it. We take responsibility, for its function and
for your trouble-free ownership, not only for the bus itself. That’s why Volvo offers comprehensive solutions that cover all vehicle-related aspects of managing your operation.
Volvo workshops are well-equipped and trained to take care of the complete Hybrid
vehicles in Gold service contract. You will benefit from increased uptime, improved
parts availability, and higher service level in your operation. In combination with a well
defined cost, these factors substantially boost reliability, driver productivity, and overall
long-term profitability.
Financing – efficient solutions
• Simplicity – a one-stop-shop.
• Packaged solutions at a monthly fee.
• Customer financing through Volvo
Financial Services.
• Reduced fuel consumption and
a safer bus.
• Predictable service and repair cost.
• Genuine Volvo Service and Genuine
Volvo Parts.
Service contracts offer
(Blue or Gold)
• Maintenance and repair service
contracts.
• High vehicle availability.
Fuel Management
• Tailor-made for Hybrid bus operations.
• Eco-driving training.
• Performance follow up of the bus.
read more about our services on www.volvobuses.com
Life Cycle/Green Public
Procurement Cost (LCC/GPP)
• LCC/GPP calculation performed for
each batch before delivery.
• Possibility to assist with GPP calculations to meet new EU regulations
for public procurement.
• Follow up of result after buses are
taken into operation.
Green efficiency with
Volvo 7700
real life
Hybrid
City traffic is a tough environment. Repeated stops and accelerations stress driveline and brakes – and
consume fuel. A European bus uses 50% less energy than the train and 70% less energy than the average car. The Volvo 7700 Hybrid uses 40% less fuel and emits 40% less green house gases than the
buses in service in Europe today. Even when compared to the state-of-the-art low floor city bus, the Volvo
7700 Hybrid uses 35% less fuel in the average European city traffic. It makes it by far the most environmentally friendly means of person transports. Add to that lowered noise and reduced engine and brake
wear. The Volvo 7700 Hybrid is a real winner.
Benefits
Driving a Volvo 7700 Hybrid is truly a pleasure. A
top-class driver’s compartment helps the driver stay
focused and alert. Massive torque directly from start
and a perfectly balanced power steering make the ride
smooth.
A large number of common parts enhance service
and maintenance efficiency throughout the product
range. Add to that improved documentation and
stocking for customer specific parts, and traceability in aftermarket systems by individual vehicle
specifications.
For the fleet owner and operator, the Volvo 7700
Hybrid is a profit-maker. Not only because of fuel
efficiency but also by the simple and trouble-free
service and maintenance routines.
Hybrid buses in real life
Despite the fact that hybrid technology is relatively new, our vehicles have an impressive track record.
The outcome on savings even exceed the expectations of the operators.
“We have reached an average of 26.7 l/100 km. That’s the same amount as for
three ordinary cars. The low CO2 emissions of just 20 grammes per passenger kilometre
is 1/5 of that of a hybrid car. We are truly happy and proud.”
Lars Börje Björfjäll, president of Göteborgs Spårvägar,
the community public transport company in Göteborg.
“Most hybrid buses run in city traffic. But we wanted to find a solution also for
intercity operations. Volvo’s parallel hybrid seemed to be the right choice.”
Werner Blatter, member of the management team of PostAuto,
Switzerland’s leading bus operator.
Powerful and intelligent
The Volvo 7700 Hybrid uses a parallel hybrid configuration.
This means that there is a diesel engine and an electric motor
in the driveline. They can run independently or together, and
an advanced control system optimises the deployment of
the power resources. The start-stop function can switch
the diesel engine on and off at bus stops and traffic lights,
depending on charging level of the batteries.
Starting from a standstill, the bus is electrically powered.
A smooth and silent start is provided by the electric motor’s
high torque already from 0 rpm. When up to speed, approximately 20 km/h, the diesel engine adds its superior pulling
power at higher revs, and the two power sources will interact
in an optimised way.
Reduced energy use and emissions are perhaps the main
benefit of a hybrid bus. CO2 and NOx are cut dramatically.
And by the diesel particulate filter (DPF), this goes for particulate emissions as well. One of the reasons is that when
the diesel engine is not in use there are no emissions at all.
Moreover, the electrical machine enables a smaller diesel
engine than a traditional city bus, without decreasing per­
formance.
The hybrid solution boosts productivity by the increased
passenger capacity.
A wide centre aisle, wide doors and a completely flat floor
make the Volvo 7700 Hybrid a real people-mover.
A kneeling function gives a low boarding height for the
up to 95 passengers the Volvo 7700 Hybrid can carry.
“Already from the start we could see savings of 35 % in city traffic, and close
to 25 % in intercity traffic, compared to our estimate of 20 %.”
Dominik Steiner, owner of Steinerbus AG,
sub-contractor of PostAuto.
facts and
figures
Length: 12.0 m
Height: 3.2 m
Width: 2.55 m
Wheelbase: 5.95 m
Gross vehicle weight: 18,000 kg
Suspension: Air suspension
Steering: Electric power steering
Air compressor: Electric rotary compressor
Brakes: EBS disc brakes
Number of doors: 2 or 3
Lowest boarding height: 250 mm
the volvo way
nator Motor) electrical motor has a
power output corresponding to 160
bhp and a torque of 800 Nm. When
braking, the motor serves as a generator
and charges the batteries.
Transmission
The highly efficient 12-speed Volvo
I-Shift transmission is ideal for a hybrid
solution. The I-Shift software interacts
with the hybrid system in order to
optimise performance and efficiency
for city traffic.
Powertrain management unit
(PMU)
This unit controls battery charging,
engagement and disengagement of
the two power sources and gearchanging mode.
Energy converter
Provides DC/DC conversion
600 V/24 V.
Diesel engine
The fuel efficient Volvo D5E is a fourcylinder, 5-litre diesel engine with an
output power of 210 bhp. Low emissions characteristics are further enhanced by the closed diesel particulate
filter (DPF), that reduces particulate
matters by an additional 80%.
Electrified auxiliaries
The energy recuperated by braking
is to some extent used to drive the
auxiliary components such as air compressor, air climate control and
steering servo more efficiently than
possible by conventional drives.
Torque
Electric motor and
diesel engine
3135
Batteries
Temperature controlled lithium-ion
batteries provide efficient energy
storage. Temperature control includes
both cooling and heating.
Electric motor/generator
The I-SAM (Integrated Starter Alter-
find more facts on www.volvobuses.com
3200
hybrid
Maximum number of passengers: 95
Hybrid system: Volvo I-SAM parallel hybrid direct drive axle
Diesel engine: Volvo D5F
Diesel engine output: 215 bhp/800 Nm
Electric motor output: 160 bhp/800 Nm
Transmission: Volvo I-Shift automatic gearchanging system
3435
5945
Diesel engine
2550
Electric motor
7
rpm
4
The main components of the Volvo hybrid system
1. Diesel engine 2. Electric motor/generator 3. Transmission 4. Powertrain
Management Unit (PMU) 5. Energy converter DC/DC 600V/24V 6. Batteries
7. Electrified auxiliaries
2
3
1
6
5
The diesel engine starts when the electric motor has
brought the bus up to speed. The two power sources then
work in tandem, with the electric motor’s impressive low-rev
properties adding to the diesel engine’s superior pulling
power at higher revs.
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2664
volvo buses
RSP 83962.10.09 EN. Printed in Sweden. Equipment that is shown or mentioned in the brochure may be optional or available
as an accessory and may vary from one country to another. We retain the right to alter product specifications without prior notification.