MAN Global
Do you focus on sustainability and want to benefit from the advantages of the MAN Lion’s City at the same time? In this case, we have good news for you: In addition to conventional and hybrid drive technology, the MAN Lion’s City relies on other environmentally friendly alternatives that offer you far-reaching benefits. With the natural gas-powered MAN Lion’s City G, the success of your transportation services is within reach – silently and reliably.
With alternative drives, things are moving up: That is because our gas cylinders are intelligently housed in the roof. This frees up space that would otherwise be taken up by the engine tower. This means more capacity for you and greater comfort for your passengers.
On the road to success with gas-powered city buses.
Natural gas engines are known as particularly efficient drives. We have been working for over 75 years to develop ever more economical solutions. The result is the MAN Lion’s City G EfficientHybrid: Up to 15 % lower life cycle costs, a long range of at least 500 km and low noise emissions.
All-round savings.
Extremely economical fuel consumption, low pollutant emissions. The sustainable MAN E18 gas engine is equipped with exhaust gas recirculation and a three-way catalytic converter, hence well below the limits of the Euro 6 emissions standard and heading to the future.
The virtually wear-free MAN EfficientHybrid automatic start-stop system offers you even more economic advantages. Thanks to our smart energy management system, the diesel engine switches off when the vehicle stops, while the energy generated during every braking process is converted into electrical supply. The utilised braking energy relieves the diesel engine and reduces emissions, wear and fuel consumption.
We pave the way for intelligent energy management everyone can benefit from.
The courage to try something new is the best drive. MAN EfficientHybrid, for example, puts you three times ahead: fewer pollutant and noise emissions, lower fuel consumption and less wear. All this is achieved by a well thought-out system that uses energy that would otherwise be wasted.
Space for innovation
A robust and wear-free electric motor is used between the engine and the gearbox. It serves as a crankshaft starter generator and – together with an UltraCap energy accumulator system placed on the roof and a smart control system – increases the energy efficiency of your buses.
A hybrid through and through
By the way: City buses with MAN EfficientHybrid are officially registered as hybrid buses. This is a clear advantage for every city – also paying off in terms of image.
It is connected to the flywheel housing of the engine and works both as a generator and as an electric starter.
Since the conventional starter is not needed for these starting processes, its service life is significantly extended.
When the bus brakes, it generates electricity through the resulting mechanical energy.
When starting, it converts the previously gathered electrical energy back into kinetic energy.
The 48 volt UltraCap energy accumulator is made up of multiple individual cells with high-performance capacitors.
The high-performance capacitors are able to store and release high amounts of electrical energy particularly quickly. Plus, they are lighter and more compact than conventional rechargeable batteries.
Here, electrical energy is stored electrostatically, this means without chemical processes as with conventional batteries.
The self-learning energy management system uses energy where it is needed most.
While stopped, it supplies the vehicle electrical system. While driving, it supports – depending on the amount of stored electricity – the diesel engine with electric drive power.
The goal: maximum possible savings in fuel consumption and pollutant emissions.
When the vehicle slows down before coming to a halt at a red light or the next station, the crankshaft starter generator converts the generated brake energy into electrical energy (1). The electricity gathered in this process is then safely stored in the high-performance capacitors of the UltraCap module.
While the vehicle is at standstill, the MAN EfficientHybrid system turns off the combustion engine (2). At the same time, the UltraCap accumulator takes over the supply of the vehicle electrical system. All functions, such as opening and closing of the doors, operation of the interior lighting and the ventilation are now supplied with power by the accumulator.
Once driving off again, the crankshaft starter generator uses the available energy from the UltraCap capacitors to start the combustion engine.
If sufficient energy is available in the UltraCap module, the EfficientHybrid system also supplies the vehicle electrical system with power while driving (3). In addition, the crankshaft starter generator can use excess stored energy to act as an additional hybrid drive and thereby take some of the load off the combustion engine.
| Storage capacity Ultra-Cap energy accumulator | 40 Wh |
| Crankshaft starter generator (CSG) or integrated starter generator (ISG) | Three-phase reluctance machine |
| Cooling system | Air cooling |
| Max. output | 12 kW |
| Max. torque | 220 Nm |
| Additional weight | 170 kg |
| Registration as hybrid vehicle | Yes |
| Stop-start function | Yes |
| Supply of the vehicle electrical system | Yes |
| Support for the combustion engine | Yes |
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Further information can be found on our Data Protection & Cookies page.