Electric Motors for Buses

We offer central direct-drive solutions for the electrification of public transport vehicles, featuring direct-drive electric motors for buses, along with controllers or an integrated 2-in-1 e-powertrain system. This solution requires minimal modifications to existing fuel-powered chassis, simply replacing the engine with an electric motor. It is compatible with battery-electric, fuel cell, and hybrid electric buses and coaches. As a mature and proven configuration, it has been widely adopted in public transportation, with successful mass production and deployment in electric buses worldwide.

Email: contact@brogenevsolution.com

Why Choose Brogen

Strong R&D Capabilities

We have full-cycle validation capabilities for e-powertrain development. Our rigorous testing process, including bench tests and vehicle trials, ensures continuous improvement and reliable performance. With advanced testing devices, 20+ test vehicles, and a robust experimental process, we validate products through a range of tests, including immersion, temperature extremes, salt spray, vibration, durability, noise, and road tests. This ensures excellent reliability, cost-efficiency, power, and lightweight design of our systems.

Why Choose Brogen

Solution Features

Bus

Van

Tram

Train

Value for Clients

For Bus Manufacturers
Our electric powertrain solutions help reduce development and sourcing time and costs, enabling faster model launches. Backed by cutting-edge technology, they enhance vehicle competitiveness in the market.
For Fleet Operators
They improve operational efficiency, reduce energy consumption and emissions, enhance vehicle safety, and lower overall operating and maintenance costs.
For Passengers
They offer a quieter, smoother, and more comfortable ride, enhancing the overall travel experience and safety.

Our Offerings

Electric Motors for Buses

Central Direct-Drive Electric Motors for Buses

Our direct-drive motors utilize PMSM (Permanent Magnet Synchronous Motor) technology, offering high efficiency and compact size. With a power range of 60 – 400 kW and a torque range of 500 – 5000 N.m, they are suitable for a wide variety of vehicle types and operating conditions. These motors deliver exceptional driving performance, providing safe, reliable, and durable power support for vehicle operations.

Advanced Technologies

High Efficiency
Designed with thin silicon steel sheets, high-permeability magnetic materials, and sinusoidal air-gap magnetic density optimization, our motors achieve peak efficiency exceeding 97%. More than 90% of the system operates within an efficiency range of ≥85%, significantly enhancing energy utilization.
Noise Reduction
By incorporating advanced rotor segmentation and optimized auxiliary slot parameters, our motors effectively minimize operational noise. The no-load noise level across the full speed range remains below 72dB(A), providing a distinct competitive advantage in the industry.
Enhanced Thermal Management
The dual-helix water-cooling design maximizes heat dissipation and system stability while maintaining optimal hydraulic resistance and pressure balance, ensuring long-term reliability under demanding conditions.
Advanced Environmental Protection
The motor features a flange-mounted sealing structure that effectively prevents the ingress of mud, sand, and water. This enhances operational reliability, particularly in challenging environments.
Optimized Manufacturing and Insulation
The junction box utilizes a stamped sheet-metal and vulcanized rubber construction process, improving production efficiency and reducing material costs. Additionally, the vulcanized rubber layer minimizes internal temperature fluctuations, enhancing resistance to condensation and extending service life.

Our Offerings

Please note that these parameters are for reference only. For detailed specifications, please contact our sales team. Additional options and controllers are available upon request. Email: contact@BrogenEVSolution.com

Model	Motor Power (Rated/Peak)	Motor Torque (Rated/Peak)	Maximum Speed
OEDM500	60/120 kW	300/500 N.m	5000 rpm
OEDM850	75/120 kW	350/850 N.m	5000 rpm
OEDM1000	60/130 kW	400/1000 N.m	4000 rpm
OEDM1300	90/190 kW	550/1300 N.m	4000 rpm
OEDM1700L	80/150 kW	750/1700 N.m	3000 rpm
OEDM1700H	100/220 kW	750/1700 N.m	4000 rpm
OEDM2100L	80/185 kW	900/2100 N.m	2800 rpm
OEDM2100H	90/195 kW	900/2100 N.m	3500 rpm
OEDM2500	100/200 kW	1000/2500 N.m	2800 rpm
OEDM2800L	115/200 kW	1200/2800 N.m	2600 rpm
OEDM2800H	135/275 kW	1200/2800 N.m	3500 rpm
OEDM3400	180/290 kW	1600/3400 N.m	3000 rpm
OEEM370-240F	120/240 kW	1200/2400 N.m	3000 rpm
OEEM330-350-1	220/350 kW	1200/3200 N.m -20s	3000 rpm
OEEM380-350	215/350 kW	1260/2800 N.m -20s	3500 rpm
OEEM330-160	80/160 kW	800/1600 N.m	3000 rpm
OEEM330-240-1	120/240 kW	1200/2400 N.m	3000 rpm
OEEM380-240	120/240 kW	1400/2800 N.m	2500 rpm
OEEM330-240-2	120/240 kW	1200/2800 N.m	2500 rpm
OEEM330-350-2	220/350 kW	1450/2800 N.m (3200 N.m -20s)	3000 rpm
OEUP-M180	100/180 kW	235/470 N.m	12000 rpm
OEUP-M220	110/220 kW	325/650 N.m	10500 rpm

Integrated Electric Powertrain for Buses (Motor+MCU)

We provide a reliable and highly efficient integrated electric powertrain for electric buses or coaches, from 8 meters to 12 meters. Our 2-in-1 integrated e-powertrain solution incorporates the motor and controller. It has been in mass production since 2018, with over 30,000 units successfully deployed. This proven e-powertrain for bus delivers zero emissions, low noise, and pollution-free performance, meeting the stringent requirements of modern electric buses.

Solution Advantages

Compact Integrated Design
Optimized for minimal space usage, making vehicle integration more efficient.
Enhanced EMC Performance
Eliminates three-phase wiring harness radiation, reducing electromagnetic interference while improving overall system stability.
Lower Energy and Procurement Costs
Reduces power loss in wiring, improving efficiency and lowering component costs.
High Motor Efficiency
Achieves the "Dual 90" efficiency standard, ensuring exceptional performance and energy savings.

Our Offerings

Motor Model	OETZ400XS-120-K01	OETZ400XS-100-K01	OETZ400XS-90-K02	OETZ400XS-90-K01
Rated Power	120 kW	100 kW	90 kW	90 kW
Peak Power	200 kW	200 kW	180 kW	150 kW
Rated Torque	1300 N.m	1000 N.m	860 N.m	636 N.m
Peak Torque	2800 N.m	2500 N.m	2150 N.m	1700 N.m
Rated Speed	881 rpm	955 rpm	1000 rpm	1350 rpm
Peak Speed	2500 rpm	2700 rpm	2700 rpm	3000 rpm
Battery Voltage	540 VDC	540 VDC	540 VDC	540 VDC
Peak Current	540 A	451 A	451 A	420 A
Cooling Method	Liquid cooling	Liquid cooling	Liquid cooling	Liquid cooling
IP Rate	IP67	IP67	IP67	IP67
Applicable Vehicles	12-meter bus	10.5-meter bus	8.5~10-meter bus	8-meter bus

Controller

According to clients’ different requirements, we can provide standalone MCUs or high-voltage integrated controller systems, integrating MCU, PDU, DC-DC, and steering and braking DC/AC.

Note: Controllers are usually supplied as part of the electric powertrain system and are not sold separately.

Advanced Technologies

The specific features vary depending on the configuration. For more parameter information, please contact us at contact@BrogenEVSolution.com

ISO 26262 Compliance
Functional safety requirements and software/hardware development meet ASIL C standards.
Dual-Integration Design
Combines functional and physical integration to significantly reduce size, weight, and manufacturing costs.
Dual-Inverter Control Technology
Minimizes losses and achieves a maximum efficiency of 98.5%.
Advanced EMC Design
Multi-stage filtering, optimized wiring layout, enhanced shielding, and structural improvements ensure Class 5 compliance under no-load conditions.
Modular & Scalable Architecture
Designed for flexibility and easy expansion.
Digital Simulation & Optimization
Uses digital modeling for simulation analysis, enabling more efficient and cost-effective component selection.

How We Work

Navigating Our Process

Demand Analysis & Project Evaluation

Once we receive your inquiry, our experts will connect with you within two business days to understand your specific requirements for the EV solution and conduct an initial feasibility evaluation of your project.

Project & Technical Coordination

If the project is deemed feasible, our engineering team will collaborate closely with your team on both hardware and software aspects to develop a viable solution. We will also provide a detailed quotation based on the technical requirements.

Development, Manufacturing & Testing

For customized or modified systems, we proceed with product development, including hardware and software adaptations. Our EV systems undergo rigorous testing to ensure quality, reliability, and full functionality before deployment.

In-Time Global Shipping & Delivery

We have established strong partnerships with international shipping providers, ensuring safe and timely delivery of products to your specified location. This guarantees a smooth and efficient deployment of your EV project.

Full-Stage Remote/Onsite Technical Support

We provide technical support throughout the entire project lifecycle, including consultancy, hardware and software development, calibration, and both onsite and remote debugging, ensuring optimal performance and long-term success.

Case Studies

Electric Train Project in Indonesia

This project is about the electric train. In this project, we have provided the central direct drive solution to our client, featuring the PMSM electric motor.

In the photo, technicians are seen installing these motors, which are designated for traction in the first carriage and propulsion in the last carriage.

A successful test drive has been completed, confirming that the system operates smoothly on the train.

The electric motor has a rated power of 120 kW and a peak power of 200 kW. It adopts the integrated design, saving space and improve the vehicle layout.

Electric Railway Vehicle Project in Malaysia

Last year, we provided an integrated electric powertrain solution to a client in Malaysia for their electric railway vehicle project. This highly efficient e-powertrain integrates an electric drive motor, gearbox, and controller into a compact unit, significantly optimizing space utilization and improving overall vehicle layout.

In addition to the powertrain, we provided key EV systems, including:

DC/DC and DC/AC inverters
Air brake compressors
Water pumps

Throughout the project, we offered comprehensive technical support at every stage, ensuring seamless integration and smooth operation of the client’s railway vehicle.