Commercial Vehicle Solutions

AxTrax 2 LF

Next-Generation Low-Floor Electric Portal Axle for City Bus Applications

Key Facts

Highly Efficient

Enables up to 10% lower energy consumption than previous low-floor e-axle

More Powerful

Provides more than 20% climbing ability in 29t articulated buses with one driven axle

Platform Approach

Leverages only in-house developed key components and software

What can AxTrax 2 LF provide?

AxTrax 2 LF is ZF's latest addition to its in-house developed suite of e-drives specifically designed for city and intercity buses up to 29 tons. With a space-efficient design using similar installation space as the previous low-floor e-axle, it allows for simple interchangeability with existing electric vehicle setups. The innovative solution comprises two stand-alone silicon carbide (SiC) inverters and an ECU, creating a comprehensive e-axle system for electric, hybrid, and trolley buses.

Details

Customer Benefits

  • Delivers premium, reliable performance, and optimized energy efficiency
  • Able to operate a 29t bus with only one driven axle, while achieving weight savings
  • Offers more space for batteries, passengers, or innovative bus interior designs
  • Helps extend battery duration and vehicle operational range
  • Optimizes uptime through enhanced axle condition monitoring
  • Fulfills regulatory cyber security requirements and functional safety
  • Enables zero emissions for battery electric, fuel cell and trolley buses
  • Optimizes ride experience with quiet and smooth operation

Features & Capabilities

  • Delivers up to 360 kW continuous power and up to 37,300 Nm of peak output torque
  • Integrates two permanent magnet synchronous hairpin electric motors
  • Comes with an advanced, robust motor oil-cooling system
  • Controlled by two 800 Volt silicon carbide (SiC) inverters and a high-performance ECU
  • Provides enhanced data basis and readiness for over-the-air software updates
  • Offers optional integration of ZF air suspension and wheel-end solutions

Downloads

Key Visual

Features Graphic

FactSheet

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