Coaxial Electric Bus Axle
In the electrification of buses, simply replacing the engine with an electric motor while maintaining the traditional central drive system of fuel buses can lead to issues such as excessive weight, large size, and low efficiency.
Our coaxial electric bus axle solution integrates the motor and axle housing along the same axis, with leading-edge integration technology. This design offers the smallest chassis footprint and the lightest weight of the industry. Additionally, the motor is symmetrically arranged, ensuring a more balanced sprung mass distribution. Compared to parallel-axis integrated electric drive axles, this design has a lesser impact on the suspension load conditions. Additionally, it supports low-floor, high-passability designs for urban buses.
Email: contact@brogenevsolution.com
Solution Details
The coaxial electric bus axle represents the third generation of e-powertrain solutions for commercial vehicles. It has already been mass-produced and successfully deployed in public transport fleets. This solution enables bus manufacturers to develop electric buses that offer higher passenger capacity, improved energy efficiency, and lower maintenance costs, helping them stay competitive in the rapidly evolving EV industry.
Highly-Integrated Transmission System
Weight reduced by over 100 kg; passenger capacity increased by over 30%
Quiet Driving Experience
Cabin noise under 70 dB, enhanced driving comfort
100,000 km Maintenance Intervals
Reduced lifecycle costs
100% Counter Torque
100% counter torque; energy consumption reduced by 15%; range extended significantly
Symmetrical Layout
Symmetrical layout balances unsprung mass, reduces suspension load impact
Enhanced Safety
IP68; main reducer oil temperature monitoring; gear speed monitoring (optional)
Technical Specifications
The parameters may vary depending on the configuration. For more parameter information, please contact us at contact@BrogenEVSolution.com
| Model | OEEP6 | OEEP8 | OEEP8-B | OEEP13 |
| Rated Axle Load | 3500 kg | 5500 kg | 5500 kg | 8500 kg |
| Gear Ratio | 16.5 | 14.57 | 14.57 | 19.89 |
| Motor Voltage | 360/540 V | 540 V | 540 V | 540 V |
| Motor Rated Power | 60 kW | 90 kW | 60 kW | 80 kW |
| Motor Peak Power | 130 kW | 160 kW | 140 kW | 150 kW |
| Motor Rated Torque | 145 N.m | 200 N.m | 160 N.m | 230 N.m |
| Motor Peak Torque | 350 N.m | 500 N.m | 360 N/m | 650 N.m |
| Motor Rated Speed | 4000 rpm | 4300 rpm | 3580 rpm | 3400 rpm |
| Motor Peak Torque | 12000 rpm | 9000 rpm | 12000 rpm | 10000 rpm |
1st Generation e-Powertrain System
Same structure as the drivetrain of fuel-powered vehicles: use the electric motor to replace the engine.
- Short development time but high manufacturing cost.
- Takes up a lot of space in the X-direction, making battery placement difficult.
- Placing the battery up front creates an axle load imbalance, making the front heavier.
- The drive system isn't very light.
3rd Generation e-Powertrain System
The electric motor and axle housing are integrated along the same axis to save more chassis space for improved battery layout.
- Changing the position of the center of gravity to address impact issues.
- High integration: compact structure, efficient transmission.
- Fully release the X-direction space under the floor, conducive to battery layout.
- The NVH performance is better.
- The overall performance is superior.
Applications
Minibus with 130 kW coaxial e-axle.
Minibus with 130 kW coaxial e-axle.
Minibus with 130 kW coaxial e-axle.
City bus with 130 kW coaxial e-axle.
Contact Us
Get in touch with us by sending us an email, using the Whatsapp number below, or filling in the form below. We usually reply within 2 business days.
Email: contact@brogenevsolution.com
Respond within 1 business day
Whatsapp: +8619352173376
Business hours: 9 am to 6 pm, GMT+8, Mon. to Fri.
LinkedIn channel
Follow us for regular updates >
YouTube channel
Ev systems introduction & industry insights >