Drive solutions for off-highway and mobile machinery

When standard motors reach their limits

The electrification of mobile machinery involves more than simply replacing internal combustion engines with electric motors. In construction machinery, agricultural machinery, material handling and mining applications, the drive, hydraulics, cooling and control systems must function as an integrated whole – making the motor a key element in this integration. 

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Where ATE plays a key role in machine tool manufacturing

Typical applications

Traction Drives & Drive Modules

Electric traction drives for mobile work machines and off-highway vehicles

Wheel, Axle & Transmission Drives

Integrated drive solutions for wheel, axle and transmission systems

ePTO & Electrohydraulic Drives

Electric power take-offs and drives for hydraulic pumps and hydraulic power units

Generators & Hybrid Drives

Generators and electric machines for hybrid drive systems

Cooling & Auxiliary Systems

Electric fans, coolant pumps, compressors and other auxiliary units

Work Function Drives & Customized Solutions

Drives for work functions, customized rotor/stator assemblies, electrification of existing machine platforms, and specialized vehicles and machinery

What makes the drive task challenging

Technical requirements

Off-highway applications  place high demands on torque, efficiency and robustness. At the same time, drives must work together with hydraulics, cooling systems and control systems while fitting into limited installation space.

High forces, load peaks and limited installation space require a carefully tailored motor design. Key factors include torque and power density, overload capability and sufficient thermal reserves

Electric pump drives must deliver power as required and match the pressure, flow rate and load profile of the hydraulic system. Variable speeds and high efficiency help reduce unnecessary idle losses.

Dust, moisture, vibration, temperature fluctuations and frequent load changes place high demands on the drive. Cooling, winding, rotor and mechanical design must be adapted to the actual operating conditions.

The drive must work together with the inverter, vehicle control system, sensors, hydraulics and battery system. Electrical and mechanical interfaces should therefore be considered during the design stage.

When a standard motor does not fit properly

Limitations of standard motors

Standard motors work as long as torque, speed, cooling, protection rating and interfaces remain within known limits. In off-highway applications, problems rarely arise from a single limitation, but rather from a combination of factors: high peak loads, confined installation space, severe vibrations, variable duty cycles and customer-specific interfaces. 

The crucial point here differs from that in many other industries: in this case, a standard motor is often technically sufficient – it simply cannot be optimally integrated into the machine. And it is precisely this integration that determines efficiency, installation space and operational safety in mobile machinery. ATE therefore does not develop standard products, but rather drive systems tailored to the specific machine and task. 

How ATE approaches such tasks

The ATE approach
1
Clarify requirements
Torque, speed range, load profile, duty cycle, supply voltage, installation space, cooling and interfaces form the basis for the assessment. Inverter data, sensors, protection requirements and planned production volumes are also taken into account.
2
Designing the drive
Motor technology, rotor/stator geometry and winding design are tailored to the requirements of the mobile work machine. Electromagnetic and thermal design consider actual load profiles, overload conditions and operating environments.
3
Integration into the machine
The motor, inverter, cooling system and mechanical interfaces are adapted to the installation conditions and requirements of the work machine.
4
Preparing for implementation
From functional prototypes and validation to test bench trials, small-series production and series readiness, ATE supports the implementation process. Development and manufacturing work hand in hand, tailored to the OEM's requirements and planned production volumes.
 
CUSTOMIZED STARTING FROM A QUANTITY 1
 
IN-HOUSE DEVELOPMENT AND MANUFACTURING
 
FROM PROTOTYPE TO SERIES – FROM A SINGLE SOURCE

What goes into this

Relevant ATE expertise

Project Example: Electric Pump Drive for a mobile machinery

Project example

Initial situation: An OEM is electrifying the hydraulic functions of a mobile work machine. The mechanically driven hydraulic pump is to be replaced by an electric drive. Limited installation space, high peak loads, variable speeds and defined load cycles place specific demands on the drive design.

ATE solution: ATE develops a customized electric motor with tailored rotor and stator components. The design takes into account the actual load profile, thermal requirements and mechanical interfaces for integration into the existing machine architecture.

Result: An application-specific drive solution for the electrification of the hydraulic function, designed to meet the machine's operating conditions and integrate into the existing system.

FAQs

Stefan Peterfaj, Technical Sales at ATE
Technical Sales
Stefan Peterfaj

Tailoring drive solutions

Are you developing a drive system, an ePTO system, an electro-hydraulic pump drive or an electrified auxiliary unit with specific requirements regarding torque, installation space, robustness or integration? 

ATE supports you in the development of customised electric motors and matching rotor and stator components – from prototype to series production. 

Call us on
+49 (0) 7561-98248-53

Send us a message to
s.peterfaj(at)ate-system.de