Motor controllers
AC induction and PMAC controllers for traction, pump, lift and hybrid duty, programmable to the vehicle rather than fixed at the factory.
EV DriveSystems
Motors, controllers, gearboxes, encoders and chargers for off highway and industrial platforms. Sized as a drivetrain against your grade, payload and duty cycle, not picked off a catalog page.
ISO 9001Certified Manufacturers
ULListed
CEMarked
RoHSand REACH
ITARRegistered
Overview
A drivetrainnot a parts list
Anyone can sell you a motor. The hard part is knowing which motor, behind which reduction, under which controller, charged how, for a machine that has to climb a grade at load and still finish the shift.
Get that sizing wrong and the symptoms show up late. The motor runs hot, the controller derates on the third lap, the vehicle is still charging when the next shift starts. So the drivetrain is specified as one system against your targets, then the parts are drawn from stocked, established lines that will still be supportable years from now.
Motors
Traction, pump, gear and wheel drive motors, specified against the load and duty cycle the vehicle actually sees.
Gearboxes and transaxles
Wheel drives, transaxles and gearboxes matched to the motor so the ratio and the torque curve agree.
Chargers
Onboard and standalone units from 350 watts to 36 kilowatts, including IP66 rated models for wash down and outdoor duty.
Encoders and sensors
Incremental and absolute encoders, current shunts and magnetic switches for closed loop control and instrumentation.
Contactors and controls
DC contactors, high voltage switching, displays, throttles, gauges, alarms and beacons.
Sizing
What our team asksbefore quoting
Four questions decide most of the system. Answering them properly at the start is cheaper than discovering them on a prototype.
Duty cycle first
Grade, payload, speed, run time and rest time. A motor sized off peak torque alone will either cook itself or cost twice what it needed to.
Motor and gearbox together
The ratio and the torque curve get chosen as one decision, because a correct motor behind the wrong reduction is still the wrong drivetrain.
Controller and software
Sizing the controller to continuous current rather than peak, then writing the control logic and parameter set the vehicle needs.
Energy and charging
Pack voltage, opportunity charging and shift patterns worked out together, so the vehicle is charged when the next shift needs it.
Process
From duty cycleto running vehicle
Application review
Vehicle weight, grade, duty cycle, environment and run time. Our team would rather ask these up front than size a system against assumptions.
System sizing
Motor, gearbox, controller and charger specified as one drivetrain against your performance and efficiency targets.
Component selection
Parts drawn from stocked, established lines rather than whatever is quotable, so the system is supportable in five years.
Control software
Vehicle control logic written and the parameter set tuned to the platform, including electro hydraulic control where the machine needs it.
Prototype and validation
A running system built and measured against the targets, with the sizing revised before anyone commits to production volume.
Production and support
Release to production with stocked components behind it, and engineering support that does not end at the purchase order.
Specification
System parameters
| Motor controllers | AC induction and PMAC, traction, pump, lift and hybrid |
|---|---|
| Control software | Programmable vehicle control logic with parameter sets tuned per platform |
| Motors | Traction, pump, gear and wheel drive |
| Drivetrain | Gearboxes, transaxles and wheel drives sized to the duty cycle |
| Chargers | 350 W to 10 kW, extending to 36 kW, onboard and standalone |
| Charger voltage | 24 V to 96 V systems |
| Charger environment | IP66 rated units for wash down and outdoor duty |
| Chemistries supported | Lead acid wet, AGM and gel, plus lithium ion of any chemistry |
| Encoders and sensors | Incremental and absolute encoders, current shunts, magnetic switches |
| Switching | DC contactors and high voltage contactors |
| Instrumentation | Displays, throttles, gauges, alarms and beacons |
| Compliance | ISO 9001 manufacturers, UL, CE, RoHS and REACH as applicable |
Tell us about your vehicle
Weight, grade, payload, speed and how long it has to run between charges is enough to start. Our team will size the drivetrain and tell you what it costs to build.