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Original equipment differentials

EV Truetrac limited slip differential

The EV Truetrac is a limited-slip differential designed specifically for electric vehicles (EVs). Engineered with a high-strength helical gear design, EV Truetrac delivers exceptional power density in a compact package. Adapted to the unique needs of EVs, it is fully automatic and maintenance-free, with a tunable bias ratio in the range of 1.5-3.

The EV Truetrac retains its torque bias retention for a lifetime without the need for electronic connections or software, making it a hassle-free solution for EV manufacturers. Tailored to meet the demands of electric SUVs and pickup trucks, it improves traction with additional benefit to stability.

OPTIMIZED FOR EVS
Designed for high instantaneous torque loads and duty cycles using low viscosity oil
COMPACT DESIGN
Easily integrated into various EV drivetrain configurations with high power density
NVH
Quiet operation for a more comfortable driving experience

Core features of the EV Truetrac

  • Highly reliable and maintenance free limited-slip differential
  • Innovative, helical gearing provides differentiation as well as a tunable bias ratio in the range of 1.5-3
  • Minimized noise, vibration, and harshness to maintain a quiet environment for a comfortable driving experience
  • Designed to operate within eAxle without impacting the oil filter performance
  • Easily integrated into compact packaging spaces, allowing for more flexible vehicle design with a high-power density
  • Designed to withstand high torque and power demands of an electric motor while operating in ultra-low viscosity oil
  • Operates in forward and reverse, helping to optimize energy use while effectively handling various driving scenarios
  • Automatic response to changing road conditions

 

Optimal performance with Eaton EV differentials

The EV Truetrac differential is engineered to operate seamlessly, adapting between standard and limited-slip functions based on driving conditions. Under typical conditions, it behaves like an open differential, permitting one wheel to spin faster or slower as necessary. When a loss of traction is detected, the EV Truetrac's innovative gear separation forces come into play, redirecting torque to the wheel with better grip. This transition is smooth and efficient, ensuring that the vehicle maintains stability and control. The helical gear design ensures response without driver intervention, seamlessly resuming normal operation once optimal traction is reestablished.

Designed with the unique demands of electric vehicles in mind, the EV Truetrac integrates effortlessly into compact spaces, offering high-power density and superior torque biasing characteristics. This makes it an ideal solution for electric passenger trucks and SUVs.

Performance differentials for EVs

A global leader in traction solutions

Regardless of the vehicle’s propulsion system, Eaton’s performance differentials ensure that drivers' performance expectations are consistently met. Our extensive range of traction solutions is meticulously designed to cater to diverse driving needs, from off-road adventures to daily highway commutes. Eaton performance differentials prioritize optimal performance, enhancing both safety and comfort across various driving conditions.

With our rich legacy of collaboration with global automotive manufacturers, Eaton possesses the expertise to seamlessly integrate and optimize differentials for emerging vehicle platforms. Our capabilities are finely tuned to address the unique torque requirements and efficient packaging needs demanded by today's innovative electric vehicles.

Original equipment differentials

Detroit Truetrac for aftermarket market applications

The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

EV Truetrac differential FAQs

The EV Truetrac is a helical-gear style, limited-slip differential that is optimized for electric vehicle drivetrains. Designed to handle high torque loads with ultra-low viscosity oil, it offers superior power density in a compact design that integrates seamlessly into various EV configurations. Automatic and maintenance-free, EV Truetrac enhances traction and stability, ensuring a quiet, comfortable driving experience in electric SUVs and pickup trucks.
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The EV Truetrac, an electric vehicle differential, seamlessly adapts to changing driving conditions. Under standard operation, it behaves like an open differential, allowing differential wheel speeds. When it detects a loss of traction, the Truetrac's innovative gear separation forces automatically redirect up to 3 times more torque to the wheel with better grip. This transition is smooth and efficient, ensuring stability and control without driver intervention. Designed for the unique demands of EVs, the Truetrac integrates effortlessly into compact spaces while offering high-power density and superior torque biasing, making it an ideal solution for electric passenger trucks and SUVs.
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The EV Truetrac differential offers a groundbreaking solution for electric pickup trucks and SUVs, addressing the specific needs of high-torque electric drivetrains with unmatched efficiency. Eaton's EV Truetrac maximizes traction and stability while maintaining a compact, robust design that fits seamlessly into various EV configurations. Its automatic, maintenance-free operation ensures worry-free performance, delivering superior power density and torque biasing that significantly enhances traction and stability. 
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The EV Truetrac differential optimizes the driving experience for electric vehicles by enhancing traction and stability under varying driving conditions. Its automatic torque biasing system ensures that power is efficiently distributed to the wheel with the most grip, providing superior handling and control. This results in a smooth, quiet ride, reducing wheel slip and maintaining vehicle stability even on challenging terrains.

Moreover, the EV Truetrac's compact design allows for seamless integration into various EV platforms without compromising performance, making it an ideal choice for manufacturers aiming to deliver a top-tier driving experience.

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Eaton's innovative EV Truetrac uses precision-engineered helical gears that eliminate the need for traditional clutch packs or friction plates, which are common in other limited-slip differentials. This ensures consistent performance without the wear and tear associated with other systems. Not only do the helical gears contribute to the longevity and durability of the EV differential, but they also ensure a smooth and quiet ride with increased load capacity and improved traction. 
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The EV Truetrac differential enhances vehicle efficiency by leveraging Eaton's precision-engineered helical gears, which minimize energy loss and maximize power delivery to the wheel with the best traction. This intelligent torque distribution reduces wheel slip and enhances stability, thereby conserving battery power and extending the range of electric vehicles.

Furthermore, the maintenance-free design of this EV differential eliminates the need for frequent repairs and replacements, ensuring consistent performance and reducing downtime. Its compact and robust construction seamlessly integrates into various EV platforms, optimizing space and weight distribution, which is critical for improving overall vehicle efficiency and performance.

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