City buses run through urban areas where pollution and noise have the most significant impact on day to day life.
Electrification and hybridization of these vehicles is driven by:
- The need to improve air quality and reduce noise.
- Increase in fuel prices.
- The fact that 90% of bus transit is on planned routes with predictable traffic conditions. The operating hours are long enough to enable favorable pay-back time for the initial investment.
TM4 SUMOTM direct-drive electric powertrains are the perfect match for 6-18 meter buses. These high torque permanent magnet motors are designed to interface directly with standard rear differential without the need for an intermediate gearbox.
In comparison to the competition and general advantages of vehicle electrification, using a TM4 SUMO direct-drive systems allows the additional benefits:
- Higher efficiency
- Better reliability
- Easier integration between the H beam of the truck or in the engine bay of the city bus
- Lower maintenance
- Faster ROI
Read more on these advantages here
Examples of city buses powered by TM4:
The 100% electric Nova LFSe is based on the proven heavy-duty LFS platform and integrates a TM4 SUMO HD electric powertrain.
An unparalleled driving and riding experience, significant reduction in noise level, zero emissions and a continuous operational range with dedicated infrastructure are just a few of the advantages this advanced electric vehicle system has to offer.
TEMSA MD9 ElectriCITY
The 9-meter TEMSA MD9 ElectriCITY bus is equipped with TM4’s SUMOTM electric powertrain, comprised of a high-torque direct-drive motor and automotive-grade power electronics. According to road tests, the EV bus performs better than its diesel counterpart. Without the transmission, the high acceleration is smooth, silent and efficient.
This 9 meter bus can carry up to 63 passengers and thanks to its 200 kWh battery pack, it can travel up to 230 km on a single charge.
«With their superior efficiency, performance, competitive price and maintenance-free lifecycle, the TM4 SUMO powertrains are enabling our customers to get a faster ROI. »
Burak Onur, Technology Manager at TEMSA Global.
School buses represent an ideal platform for electrification. Their predicable usage with planned routes in the morning and afternoon allows charging needs to be evaluated and controlled.
Lion buses : eLion
The eLion is an all-electric school bus powered by a TM4 SUMO MD electric powertrain.
The eLion has a customizable range depending on the route distance, charging availability, and desired price. The variable range is accomplished with a modular battery design that provides anywhere from 70 miles of range with 3 battery modules to 100 miles of range with the maximum 5 battery modules.
Watch this video to learn more