Cómo elegir la cadena cinemática adecuada para un autobús eléctrico de 6 metros

When choosing an electric drive system for a 6-meter electric bus, do you face this dilemma: should you opt for a highly integrated, space-saving electric drive axle, or a center direct drive system that prioritizes ultimate efficiency and more direct power response?

This is not a simple choice, but a strategic decision concerning vehicle performance, operating costs, and long-term reliability. Brogen offers two market-proven, mature solutions to help you precisely match your business needs.

Option One : Electric Axle OEEA30

If you prioritize freeing up chassis space, increasing load capacity, and pursuing ultimate reliability, the electric drive axle is your best choice.

Parallel axle OEEA30	Parámetros	Motor controller OEEI51-540X380	Parámetros
Carga por eje	3500kg	Tensión nominal	540 VDC
Motor power(rated/peak)	80/180 kW	Working voltage	400~750 VDC
Motor torque(rated/peak)	170/355 Nm	Max. efficiency	≥98.5%
System output torque	4870 Nm	Cooling method	water cooling
Speed ratio	15.22	Protección	IP68
Peso	276 kg	Peso	28.5 kg
Freno	hydraulic disc	Dimensión	495×437.5×208

Why does it save space?

Through an innovative three-stage reduction mechanism (with a speed ratio of up to 15.22), it deeply integrates the motor and axle, completely eliminating the driveshaft. This not only reduces weight but also frees up valuable space for a larger capacity battery.

Why is it more reliable?

The axle ends utilize internationally advanced friction welding technology, ensuring they can easily withstand the rigorous testing of millions of fatigue cycles. Integrated hydraulic disc brakes and a central parking brake guarantee absolute safety.

Who is it suitable for?

Ideally suited for public transportation routes that frequently start and stop in congested cities and need to maximize battery space to extend range.

Option Two : Central Direct Drive Motor OEEM330-4H1200

If you value higher energy efficiency, a smoother and quieter driving experience, and more direct power response, the central direct drive system will not disappoint.

OEEM330-4H1200	Parámetros	Motor controller OEEI51-540X560	Parámetros
Tensión nominal	520 VDC	Tensión nominal	540 VDC
Motor power(rated/peak)	60/120 kW	Working voltage	400~750 VDC
Motor torque(rated/peak)	600/1200 Nm	Max. efficiency	≥98.5%
Max. speed	3500 rpm	Cooling method	water cooling
Protección	IP68	Protección	IP68
Peso	138 kg	Peso	28.5 kg
Dimensión	372x372x330	Dimensión	495×437.5×208

Why is it more efficient and quieter?

Efficiency: Utilizing technologies such as thin silicon steel sheets and high magnetic permeability materials, the motor achieves a maximum efficiency of ≥97%, meaning lower power consumption and longer range.

Quiet Operation: Optimized through technologies such as rotor segmentation and skewed poles, the motor’s no-load noise at full speed is ≤70dB(A), providing a library-level quiet environment for passengers and drivers, significantly improving the ride quality.

Why is it more reliable?

Its proprietary double-helix waterway design provides stronger heat dissipation; the flange mud and sand protection structure ensures the motor achieves an IP68 protection rating, unaffected by harsh weather and complex road conditions.

Who is it suitable for?

Scenic spots with stringent noise and vibration requirements, community micro-circulation buses, or operational scenarios seeking ultimate energy efficiency.

High Voltage Integrated Motor Controller for Electric Bus

Whichever solution you choose, you will share Brogen’s leading technology in the field of motor controller.

High-voltage integrated controller (OEE151 series): Adopting a dual functional and physical integration design, it integrates MCU, PDU, DC-DC, etc., resulting in a small size, light weight, and lower cost.

Functional Safety: Fully compliant with ISO 26262 standards, achieving ASIL C safety level, ensuring vehicle safety.

Electromagnetic Compatibility: Through multi-stage filtering and enhanced shielding design, achieving Class 5 level, ensuring no interference between vehicle electronic systems.

Ultimate Efficiency: The controller employs dual-frequency conversion technology, achieving a maximum efficiency of ≥98.5%, maximizing the value of every unit of electricity.

We can understand the various features at a glance

Choosing an electric drive axle means choosing optimal space utilization, powerful wheel-end torque, and proven mechanical reliability.

Choosing a central direct drive axle means choosing top-tier energy efficiency, a quiet operating experience, and direct power response.

Your operating scenario and core needs are the only key to answering this choice. We hope this in-depth analysis will help you make the wisest decision.

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Contacto Brogen - Proveedor líder de soluciones EV para vehículos comerciales

En Brogen, estamos especializados en el desarrollo y la producción de sistemas de tren motriz electrónico de alto rendimiento y sistemas de baterías para vehículos comerciales. Póngase en contacto con nuestros expertos en inquiry@brogenmotors.com.

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