Oerlikon Fairfield introducing off-highway hybrid electric drivetrain technology; up to 30% fuel economy improvement
Oerlikon Fairfield will unveil its new patent-pending off-highway hybrid electric drivetrain technology at the upcoming ConExpo-Con/Agg trade show from March 4-8 at the Las Vegas Convention Center. The drivetrain technology utilizes a Tier 3 or Tier 4 engine driving a 227kW switch reluctance generator with step-up gearing to produce electrical energy. Alternators and starter motors are eliminated to improve system reliability.
This technology is a complete series electric driveline system from engine to wheel featuring an innovative energy recovery system.
Major components of the system include:
the engine-driven generator to produce electrical power;
an ultra-capacitor bank that recovers energy during operation;
a custom software control unit;
dual inverters that are integrated into the front and rear axles providing simplified wiring packages; and
four high power density traction motor drives at each wheel end allowing for higher motor speeds and good performance over a wide ground speed range.
|The concept technology is designed for a wheel loader, but consists of modular components that can be configured for a broad range of applications. Click to enlarge.|
Not only will this system provide up to 30 percent fuel economy improvement, but depending on the application, other benefits such as electrically driven auxiliary drives and the ability to add engine start/stop technology may have more beneficial advantages.—Dan Phebus, Head of the Business Unit – Americas at Oerlikon Fairfield