ePTO system
Customer challenge
You, as a vehicle or mobile machine manufacturer, must provide a mechanical/hydraulic power take-off (mPTO/hPTO) for an electrically powered vehicle (eTruck) or a mobile machine (e.g. eTractor) or you, as a body manufacturer/attachment manufacturer, must convert a defined electrical HV interface (ePTO) into a mechanical (speed, torque) or hydraulic (pressure, flow) interface for the operation of superstructures or attachments.
System description
The Kinell emPTO / ehPTO system offers a validated and easy-to-integrate electrically operated mechanical or hydraulic PTO solution for defined HV interfaces (ePTO). It includes:
- Validated mobile inverters / e-drive combinations (various options possible)
- Optionally expandable with mechanically compatible hydraulic pumps
- An ePTO control unit for controlling the electrically operated output flexible communication interface to the e-vehicle / e-body
- Mercedes eEconic/eActro and MAN eTGS / eTGX ePTO compatibility (HV and control interface)
- Cooling circuit with pump and optional fan
- LV wiring harness with the communication interfaces to the vehicle chassis and body/attachment
- HV cabling with automotive plug for ePTO connection
System diagram
- Single mechanical PTO
- Cooling pump only (vehicle cooling circuit used)
Typical applications
Electric utility vehicles
eTractors
eBodies
Electric trailers and implements
Customer benefits & system features
Truck-OEM interoperability
Validated interoperability with Mercedes-Benz eEconic/ eActros & MAN eTGX / eTGS ePTO realizations. Conformity with other truck manufacturers can be realized on request .
Flexible control interface to body or implement
Flexible implementation of the CAN interface allows customer-specific adaptations. No direct communication with the vehicle’s ePTO interface required. Allows identical control interface for different truck manufacturers.
Integrated ePTO functions
PTO control unit implements the energy management for the superstructure/attachment, controls active e-functions such as discharging or safe-torque.off) and implements the central fault management.
HV-Safe & OEM-compliant
Meets the legal HV requirements and the specifications of the vehicle manufacturer. No additional interaction with the vehicle’s HV system is required.
Easy and flexible Integration
Available as component kits for optimum system integration or as pre-assembled packages for ease of installation.
Single point of contact
Defined responsibility for the system functions contained in the system and the interfaces to the e-vehicle.
Various realization options
Various inverter/e-motor combinations possible. Several mPTOs, additional hydraulic pumps (ehPTO) and active functions such as switching and precharging can also be implemented via additional PDUs.
Robust design
Robust and reliable system design and components designed for rugged applications.
Options
Multiple
PTOs
Expand the number of outputs with an additional PDU and implement additional HV functions, such as the isolation, precharging and discharging of individual HV circuits.
The ePTO control unit acts as a central gateway and energy manager for the e-vehicle.
Hydraulic output
(ehPTO)
Extend the output with compatible hydraulic pumps to operate a hydraulic system.
Various options from well-known manufacturers are available.
Stand-alone cooling system
Increase the cooling capacity beyond the specifications of the electric vehicle manufacturer by implementing the cooling as an independent cooling circuit.
Various cooling packages and optional active cooling (climate compressor) are available.
Technical features & data
ePTO total power
- 20 – 100 kW Continuous power per output
- Integrated power management
- Total available power depending on the power provided via the ePTO
ePTO controller
- Control ePTO interface of the e-vehicle according to manufacturer specifications
- CAN | J1939 body interface
- 12 V | 24 V power supply
HV-System / functions
- 400 V – 850 VDC nominal voltage
- Active discharge
- HW-based safe-torque-off (STO)