Distributed Electric Drive Axle for Buses

Our distributed electric drive axle for buses or other public transport vehicles features two electric motors integrated into the rear axle. With this distributed drive setup, the left and right wheels can be controlled independently, which reduces tire slippage, minimizes wear, and improves safety and stability. Additionally, this drive axle supports a low-floor design, lowering the center of gravity for electric buses and enhancing passenger comfort.

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Email: contact@brogenevsolution.com

electric axle for heavy duty truck - test bench

Leading the Way in Innovative Electric Powertrain Technologies

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 forward-thinking distributed electric bus axle offers a deeper optimization of the entire electric drive system, ensuring vehicle stability, safety, and efficiency.

With a robust portfolio of core technologies for e-powertrain design, including DCU, EASR, IESS, IRBS, and more, we are dedicated to delivering substantial benefits to bus manufacturers, fleet operators, drivers, and passengers.

20 Years of Experience

In complete vehicle and component development

108 Design Specs & Guidelines

14 Years of Experience

In developing electric vehicles core components

Over 600 PCR & FMEA Libraries

We Offer Best Features

Dual-Motor Design
Integrating two electric motors with the axle for strong power and additional safety redundancy.
Distributed Drive Approach
Adding additional safety redundancy to the vehicle, offering a flexible power distribution strategy for different working conditions.
Compact & Lightweight
The integrated design of the electric bus axle lowers the gravity center of the battery system, increasing the stability of the whole vehicle.
Advanced Core Technologies
Equipped with EDS, EASR, IESS and other safety configurations to increase vehicle safety and stability in harsh environments.

Software-Driven Hardware

EDS

Our advanced Electronic Differential System (EDS) has been proven over millions of kilometers.

EASR

Leading torque control algorithm with millisecond response time enhances safety and reduces tire wear.

IRBS

Ensure braking performance while recovering energy in various driving conditions to reduce overall energy consumption and extend driving range.

IESS

Adjust the torque of various components in real-time based on the overall vehicle status to ensure safety and stability of the vehicle under extreme conditions.

Technical Parameters

Model	9T Independent Suspension	9T Wheel-Side	13T Wheel-Side
Rated Axle Load	9000 kg	9000 kg	13000 kg
Maximum Output Torque	2×6142 N.m	2×6142 N.m	2×10776 N.m
Maximum Output Power	2×90 kW	2×120 kW	2×160 kW
Maximum Wheel Speed	540 rpm	541 rpm	430 rpm
Tire Specs (Standard)	305/70R22.5	275/70R22.5	275/70R22.5
Gear Ratio	17.55	17.55	18.58
eAxle Assembly Weight	750 kg	850 kg	1080 kg
Rated Voltage	540 VDC	540 VDC	540 VDC

Empower Your Electric Bus Design

With industry-leading technology, our distributed electric axle systems for buses offer numerous advantages over central direct drive systems.

Traditional Central Drive Powertrain Solution

Centralized Drive → Poor driving maneuverability
Centralized Brake → Long braking distance
Centralized Steering → Large turning radius
Long Mechanical Transmission Chain

Significant energy transmission losses;
Poor applicability across vehicle models;
Insufficient passenger space

Advanced Distributed Drive Electric Powertrain Solution

Drive / Brake Decoupling
- Distributed Drive → Enhanced control on complex surfaces
- Distributed Brake → Reduced braking distance on complex surfaces
Distributed Steering
- Four-wheel Independent Steering → Reduces turning radius; enables lateral movement and zero-radius turns; significantly enhancing maneuverability
- Eliminates Mechanical Transmission → Increases user space; reduces energy transmission losses

Solution Benefits

Central Direct Drive System

Distributed Electric Drive Axle

Short Transmission Chain
Our distributed drive eaxle system ensures each motor drives one wheel, significantly shortening the transmission chain, minimizing transmission loss and maximizing efficiency, delivering superior performance.
Compact Structure
The distributed electric drive axle systems save space and contribute to a more compact vehicle structure. It's about 200 kg lighter than the central direct drive system.
Improved Tire Grip Distribution
The distributed electric axle enables individual adjustment of motor torque, optimizing tire grip distribution, enhancing vehicle handling and driving stability, providing a safer and more controlled driving experience.
Enhanced Drive Efficiency
Aligning the motor's optimal efficiency range with the vehicle's operating conditions boosts drive efficiency and energy utilization, ensuring vehicles operate at peak performance.

Low-Floor Design

Adapts to the fully flat low-floor design and allows for easy one-step entry, providing a spacious aisle and reducing the risk of passenger falls.

IP67 Protection

An IP67 protection rating effectively prevents the intrusion of dust and water, providing enhanced performance in challenging conditions.

Lower Maintenance Costs

Utilizes maintenance-free wheel hub units, lowering maintenance costs. The advanced EDS ensures tire replacement intervals exceed 100,000 kilometers.

Our Projects

Our distributed electric drive axle systems have been successfully implemented in city buses across Europe, the Middle East, Asia, and other regions. Incorporating advanced design concepts and control strategies, we prioritize the safety and reliability of our systems, delivering profitability for global bus manufacturers.