- Automotive drive solutions for sustainable mobility
- Modular drive system for electrified auxiliary units
- Innovative software solutions: Steering pump, air compressor, heat pump, etc.
Electromobility
One of the most important keys to a more sustainable future is the rapid implementation of the mobility transition. And this is not without good reason as in the European Union, transport is responsible for a significant share of all CO2 emissions and is the only area in which greenhouse gas emissions have increased in the past three decades. This is precisely where electromobility comes into play, laying the foundations for climate-neutral traffic. The number of newly registered electric vehicles is continuously increasing – and with it, the need for sustainable solutions for operating auxiliary systems such as air-conditioning and air compressors or hydraulic and power steering pumps. KEB Automation provides users with the necessary drives, controls and software solutions out of one hand.
The T6 APD provides a scalable and modular DC-AC inverter system with integrated power electronics, an intelligent mobile control unit and EMC filter solutions. It converts direct current from the HV-DC source into alternating current to drive electric motors. In addition, bistable brakes and clutches, for example in pick-up trucks or driverless transport vehicles, enable energy-free engagement/disengagement and hold devices and equipment in place with energy savings of up to 99 percent in battery-powered systems.
- Electrification of ancillary drives
- Demand-driven supply and efficient control
- Motor speed and torque control without encoder feedback
- Considerable flexibility thanks to application-specific software solutions
Drive solutions for auxiliary drives in e-vehicles
Tim Hagemeier
Sales Automotive - e-mobility
SOLUTIONS FOR THE ELECTRIFICATION OF ANCILLARY DRIVES
KEB offers innovative system solutions for the electrical operation of ancillary systems in vehicles, which noticeably increase efficiency. From power steering pumps, air compressors, air-conditioning and ventilation systems, CO2 heat pumps and transport refrigerating machines to hydraulic pumps, heating units, ePTOs and generator applications – the application scenarios are numerous and the potential for CO2 savings is huge.
Over ten years ago, KEB launched its “E-mobility” project and the product development of the T6 APD modular drive system for the commercial vehicle industry. Today, the T6 APD is optimally tailored to individual customer requirements, and stands out with its cutting-edge technology and drive performance. There is always a focus on modularity, EMC compatibility, safe and flexible connection technology, scalability and innovative software solutions.
Electric drive solutions for commercial vehicles and mobile machinery
Fields of application | Use-cases | Drive solution |
Public transport | Steering-pump | Modular Drive Controller Systems |
Municipal vehicles | Air-compressor | DC-AC Inverter, 1-6 axes |
Last-mile-logistics | Air-conditioning | ECU - Smart Control |
Mobile machinery | Thermo management | DC EMC Filter |
Construction machinery | HVAC | |
Agricultural machinery | Hydraulic pump | Application Software |
Trucks and trailers | Generator drive | Air-Compressor |
Ground support equipment | ePTO | Steering-pump |
Retarder | TSC - Torque-Speed-Control | |
UDS | ||
and more |
THE POSSIBILITIES OF ELECTRIFICATION IN VEHICLES WITH KEB’S BRAKES AND CLUTCHES
Public transport | Holding the hatch (damper) in the open position | Electromagnetic brake |
Municipal vehicles | Parking brake | Spring-applied brake, bipolare brake |
Last mile logistics | Holding access doors in place | Electromagnetic brake |
Trucks and trailers | Switching the servo pump on/off | Spring-applied clutch, permanent magnet cluch |
Mobile machinery | Parking brake | Spring-applied brake, bipolare brake |
Construction machinery | Emergency stop of drives | Spring-applied brake, permanent magnet brake |
Agricultural machinery | Switching ancillary drives on | Electromagnetic clutch |
"Aviation" | Precise positioning and holding | Electromagnetic brake, Spring-applied brake, permanent magnet brake |
Technology
Servopump (hydraulic)
Whether servo steering pumps, servo pumps, hydraulic pumps or just steering, the servo steering pump supports the driver when turning the wheel in the stationary position, manoeuvring or driving at low speeds.
eSERVO APP - software solutions:
- Sensorless control for PM motors – dynamic speed and torque control
- Needs-based flow control
- Adjustable AC motor speed
- Extended fault diagnostics – CAN error behaviour (warning, stop)
- High level of efficiency, low energy consumption – increases the range of the electric vehicle
- Low-noise
- Compact design, low weight
- Implementation of manufacturer-specific software solutions
- Plug & Play
Air compressor
Generates compressed air to supply all pneumatic systems (brakes, pneumatic doors, suspension systems, etc.) in mobile applications.
eAIR APP software solution:
- Sensorless control for PM motors – dynamic speed and torque control
- Adjustable AC inverter motor speed
- Extended fault diagnostics – CAN error behaviour (warning, stop)
- High level of efficiency, low energy consumption – increases the range of the electric vehicle
- Low noise and low-vibration
- Compact design, low weight
- Implementation of manufacturer-specific software solutions
- Plug & Play
Heat management
CO2 heat pumps are responsible for a holistic approach to thermal management in vehicles. They provide environmentally-friendly and energy-efficient heating and cooling energy and, for example, can heat up the passenger compartment or cool down the battery.
Heat pump – HEAT APP software solution
- Sensorless control for PM motors – dynamic speed and torque control
- Adjustable AC motor speed
- Environmentally-friendly thermal management, e.g. for electric buses
- Efficient system solution – increases the range of the electric vehicle
- Implementation of manufacturer-specific software solutions
- Plug & Play
T6 MCU Mobile Control System
MCU software ensures complete operation of the entire system. Download files can also be saved on the MCU’s file system.
- MCU (Main Control Unit) – as an embedded control system (PLC)
- IEC 61131-3 programming environment, CODESYS-based, freely programmable
- Variable communication link to the vehicle’s control system (ECU) and diagnostics
- J1939 or CANopen gateway
- Platform for application-specific software solutions
- T6 wizard provides support during commissioning
J1939 CAN APP
The J1939 CAN APP provides a communication gateway in the T6 APD system for exchanging process data, settings and diagnostics messages (DM1 ... DM4) via SAE J1939.
UDS APP
Unified Diagnostic Services (UDS) is a communication protocol used in diagnostics. The ISO 14229-1 standard describes various services. The T6 APD supports a specific number of services.
TSC APP
TSC – Torque Speed Control: generic application for easy control of an auxiliary system’s speed and torque via J1939.
PDG APP
PDG – Process Data Gateway: generic application enabling access to all of the auxiliary system’s settings via J1939.
Enables all conceivable axis functions to be controlled via CAN.
DRIVE APP
Application for operating an additional device without CAN controls. Speed setting using APP parameters.
HEAT APP
- Sensorless control for PM motors – dynamic speed and torque control
- Adjustable AC motor speed
- Environmentally-friendly thermal management, e.g. for electric buses
- Efficient system solution – increases the range of the electric vehicle
- Implementation of manufacturer-specific software solutions
- Plug & Play
eAIR APP
- Sensorless control for PM motors – dynamic speed and torque control
- Adjustable AC inverter motor speed
- Extended fault diagnostics – CAN error behaviour (warning, stop)
- High level of efficiency, low energy consumption – increases the range of the electric vehicle
- Low noise and low-vibration
- Compact design, low weight
- Implementation of manufacturer-specific software solutions
- Plug & Play
eSERVO APP
- Sensorless control for PM motors – dynamic speed and torque control
- Needs-based flow control
- Adjustable AC motor speed
- Extended fault diagnostics – CAN error behaviour (warning, stop)
- High level of efficiency, low energy consumption – increases the range of the electric vehicle
- Low-noise
- Compact design, low weight
- Implementation of manufacturer-specific software solutions
- Plug & Play
Safety and Security
Our development phases depend on ASIL and SIL. Operational safety and cyber security use similar development processes. Here, the focus is on identifying and assessing the hazards and risks that can arise from the intended functions. Cyber security is a multi-dimensional concept that covers the entire technical life cycle and the entire organisation of a company. As regulation UN R155 is relevant to the type approval (homologation) of electric vehicles, it primarily concerns vehicle manufacturers. However, suppliers must also be able to demonstrate the cyber security of their products, internal processes and services.
Energy-less holding in position and switching tasks
Bistable brakes are responsible for holding devices in position with just a minimum amount of energy. As a “hand brake”, they prevent vehicles from moving unintentionally.
Bistable clutches enable the engaging and disengaging of movement axes or components. Through a one-off switching pulse (rather than continuous power), electrical energy is only required for the actual switching process. In “stable operating states”, bistable elements operate without consuming any energy which is a decisive advantage particularly for battery-powered systems.
Operating current-actuated brakes and clutches
Thanks to frictionally or positive connection the COMBINORM products are particularly suited for precise positioning and reliable holding.
Safe release function without residual torque and no maintenance throughout their entire service life complete the performance.
All you need to know about operating current-actuated brakes
All you need to know about operating current-actuated clutches