DRIVE SUBSYSTEMS

Powertrain Subsystems and Parts

When you are engineering your own electric and hybrid subsystems, consider lowering your project risk by purchasing from a team that uses what it sells. Below is a list of most of the most popular powertrain parts we sell.

Systems typically include the following parts: motor, controller-inverter, controller chill plates (if controller-inverter doesn't have liquid-cooling built-in) and harnesses where applicable, and tech support - optional harnesses, optional soft-start pre-charge relays/ fuses/ contactors/ resistors, optional soft-start parts in a shielded box, control paddles, etc. for some systems - contact us for details, pricing and lead-time on these systems.

Features of all of our systems:

-> Regenerative braking functions

-> IP67 sealed against debris/water incursion

-> Liquid-cooled for higher continuous/rated power and torque

-> CANbus controlled

-> Most systems have performance upgrades using more powerful controller-inverters, now RMS part of BW Cascadia offers more inverter options - e.g. 3 RMS inverters in MV and HV voltage ranges

Peak Performance Requirements: To produce the peak performance estimates indicated for each system, the ESS (energy storage subsystem a.k.a. battery pack) needs to provide the required peak discharge current. Continuous/Rated performance requires support cooling systems to meet flow rate and pressure minimum requirements indicated on data sheets.  All systems listed below are WEG (water-ethyl-glycol) cooled and require pumps with adequate pressure and flow-rate to produce power listed.

Motor types/topologies - Axial Flux (AF) vs Radial Flux (RF) motors - of these two types we use and sell only brushless varieties including: Induction, PMAC, BLDC. 

Not all systems are listed below - we also offer through our partners, unique axial flux (AF) motors from PHI, Yasa, and GoldenMotor, as well as radial flux (RF) motors from SEV, CM, and additional packages from UQM and Parker and induction packages from HPEVS. Alternate way to view our drive systems via this TABLE.

LV – low-voltage – 96-144Vdc Drive-Sub-systems

QWC/SEV-35kW peak-132Vdc-AF/M1304 - Kit contains: IP67 motor/controller (2 sizes offered or Kelly option 96 or 144Vdc, Curtis or Kelly option 96 or 144Vdc), controller chill plate, contactor, low voltage wiring harness, air or liquid-cooled, 2 hours tech support. Peak Power 47hp/35kW for 10 secs, Peak Torque ~ 40ft-lbs / 54nm, Continuous/Rated Power 20HP / 15kW, Cont. torque 22 ft-lbs./ 30nm, motor torque constant ~.15/nm and Max RPM 5,700, Motor Weight ~35lbs, Controller Weight w/ chill plate ~7lbs. Recommended 6 liters per minute (lpm) water cooling for motor or air-cooled IP65 version (air-cooled are de-rated for cont. amps).  Motor picture     Dual subsystems of this type used in a Electronic Differential subsystem.  Four of these systems used in this industry milestone technology demonstrator - AWD Torque Vectoring Electric UTV (conceived, design and built while QWC supported EVD) (a smaller air-cooled version of this kit is also available Curtis/RF/M1718 ~16kW peak 72-96Vdc)

QWC/SEV-50kW peak-96Vdc-AF/M1304-SG4S6 - Kit contains: IP67 motor/controller (size 6 controller picture or Kelly option 96 or 144Vdc), controller chill plate, contactor, low voltage wiring harness, 2 hours tech support. Peak Power ~67hp/50kW for 10 secs, Peak Torque ~66ft-lbs/89nm, Continuous/Rated Power ~25hp / 19kW, Cont. torque 22 ft-lbs./ 30nm, motor torque constant ~.15/nm and Max RPM 5,700, Motor Weight ~35lbs, Controller Weight w/ chill plate ~11lbs. Recommended 6 liters per minute (lpm) water cooling for motor or IP65 air-cooled version (air-cooled are de-rated for cont. amps). .  Motor picture     Dual used in 70-100kW Electronic Differential subsystem.   Four of these could have been used in this UTV prototype, IF more power was required

QWC/SEV-57-83kW peak-96-144Vdc-RF/M1616 - (96-144Vdc Kelly controller option) This system is quite similar to what Zero Motorcycle uses, the differences are: motor is this package has more flux in the rotor and more magnet material, for a higher power in the same size package. Compare our rotor on left to Zero on right. Both have the same stator winding, however our motor is liquid-cooled for higher cont. power, where Zero’s is air-cooled - we also sell an air-cooled version with less cont. power capability.  Kit contains: IP67 motor/controller (size 6 controller picture or Kelly option controller - 96v or 144Vdc), controller chill plate, contactor, low voltage wiring harness, 2 hours tech support. Peak Power 73hp / 55kW for 10 secs, Peak Torque ~88ft-lbs/120nm, 67hp / 50kW for 120 secs, Continuous/Rated Power 27HP / 20kW, Cont. torque 32 ft-lbs./ 44nm, motor torque constant ~.2/nm and Max RPM 8,000*, Motor Weight ~48lbs, Controller Weight w/ chill plate ~11lbs. Motor and Controller Picture  *Field Weakening required.     Using different controllers, typical kits and specs for 96 and 144Vdc versions.

QWC/SEV-65kW peak-144Vdc-RF/HP51LC-Cu - Kit contains: liquid-cooled (ATF) motor/controller, controller chill plate, contactor, HV Relay, Precharge Resistor, Curtis 840 Dash Gauge, SPST Menu Button, SPST Mode Switch, low voltage complete wiring harness, 3 hours tech support.

Peak Power same for Liquid-cooled and Air-cooled -  88hp / ​65kW, Peak Torque ​~108 ft-lbs / 146nm peak,   Cont/Rated Power ~55hp / 41kw, Cont. Torque avg. 80 ft-lbs / 108nm , Air-cooled Cont/Rated Power ~45hp / 33kW  ,  Cont. Torque ~​43 ft-lbs / 58nm ​ and Max RPM 8,000, Motor Weight 115 lbs (52kgs), Controller Weight w/ chill plate 13 Lbs (5.9 kgs). Air-cooled motor option available. Motor-Controller kit picture

QWC/SEV-80kW peak-96Vdc-RF/M1616-DSGS6 - Kit contains: IP67 motor/controllers (size 6), controller chill plates, contactor, low voltage wiring harness, 3 hours tech support. Peak power 107hp / 80kW Peak for 120 secs, Cont. 36kW , and Max RPM 8,000*, Motor Weight ~48lbs, Controller Weight w/ chill plate ~11lbs. Motor-Controller Picture (dual controllers in this kit) *Field Weakening required

QWC-SEV-123kW peak-144V-RF/DHP35LC-Cu - Kit contains: liquid-cooled (ATF) dual core motor/dual controllers, controller chill plates, contactors, low voltage wiring harnesses, Curtis 840 Dash Gauges, 3 hours tech support. @144Vdc/500amps Peak power 165hp/123kW peak  ,  Peak torque 177 ft-Lbs ,   Cont/Rated Power ~75hp / 56kw,  Cont. Torque avg. ~120 ft-lbs.  Air-cooled Cont./Rated Power 67hp/50kW cont,  Cont. Torque ~59ft-lbs /80nm , 8,000 Max RPM. Air-cooled motor option available. Motor-Controller kit picture

MV – medium voltage – 300-400Vdc Drive-Subsystems

QWC/SEV-110kW peak-360Vdc-RF/AMR-Rem90p-R100kW - Kit contains: motor/100dx-controller, 5 hours tech support, many optional accessories, e.g. wire harnesses, soft-start kit, etc. 2 Motor windings available - For “P” winding - Peak Power 147hp/ 110kW 30secs,  Peak Torque 144 ft-lbs/195 nm, Cont./Rated Power 107hp / 80kW, Rated Torque ~118 ft-lbs/ 160 nm and Max RPM 10,000. 

For “S” winding - Peak Power 107hp / 80kW, Peak Torque ~243 ft-lbs / 330nm, Cont. Power ~78hp / 58kW cont, Cont. Torque ~200 ft-lbs / 271 nm, 7,500 Max RPM      Parallel vs. Series Motor Wind Performance Curves,       Motor and Controller-Inverter picture.    Controller-Inverter picture (100kW size used for this system)      Compact motor/controller unit option  

QWC/SEV-130kW peak-360Vdc-RF/AMR-Rem90p-R150kW - Kit contains: motor/150dx-controller, 5 hours tech support, many optional accessories, e.g. wire harnesses, soft-start kit, etc. 2 Motor windings available - For “P” winding - Peak Power ~174hp/ 130kW 10 secs, Peak Torque ~184 ft-lbs/250 nm,   Cont. Power ~107hp / 80kW, Rated Torque ~125 ft-lbs/ 169 nm and Max RPM 10,000.         Motor and Inverter Picture       Controller-Inverter picture (150kW size used for this system)

QWC/SEV-142kW peak-350Vdc-RF/Pk210-150-S6-R150kW - Kit contains: motor/150dx-controller, 5 hours tech support, many optional accessories, e.g. wire harnesses, soft-start kit, etc. For “S6” winding - Peak Power ~190 hp/ 142 kW 10 secs, Peak Torque ~164 ft-lbs/222 nm, Cont. Power ~121hp/ 90kw, Rated Torque ~72 ft-lbs/98 nm and Max RPM 9,000, Motor Weight 100 lbs / 45.4 kg, Controller Weight 26 lbs/ 11.8kg. Other windings available which trade more torque for less power. Motor 3 view drawing link   Motor family picture   Controller-Inverter picture (150kW size used for this system)

QWC/SEV-145kW peak-360Vdc-RF/AMR-Rem115p-R150kW - Kit contains: motor/150dx-controller, 5 hours tech support, many optional accessories, e.g. wire harnesses, soft-start kit, etc. Peak Power ~194hp / 145kW 10 secs, Peak Torque ~228 ft-lbs/310 nm (“145MV” red and blue curves only),    Continuous/Rated Power ~120hp / 90kW,  Rated Torque ~140 ft-lbs/ 190 nm and Max RPM 10,000.   Controller-Inverter picture (150kW size used for this system)   Motor and Inverter Picture

QWC/SEV-150-180kW-320-390Vdc-RF-ACP-Induction - matched controller mounted either on top or at end. 54-59.5kG total weight. Up to 14,000 max RPM. e-mail us for more information

QWC/SEV-220kW peak-400Vdc-U220+RFmotor - Kit contains: matched motor/controller, 5 hours tech support,   

Peak Power ~295hp / 220kW Peak torque ~516ft-lbs / 700 Nm,   Cont. Power ~201hp / 150 kW, Cont. Torque ~324ft-lbs / 440 Nm and Max RPM 6000. SEE BELOW - Upgrade to 250kW peak system with same motor-controller dimensions but increased max input voltage range to a “HV” system 450-750Vdc and reduced RPM down to 5500.  Motor-Controller- picture  System Dimensions

QWC/SEV-310kW peak-400vdc-RF-Induction-Tesla-drive unit - this is the “performance” unit, not the “base” unit.

Kit contains: all-liquid-cooled motor, inverter-controller and 9.73:1 single-speed gearbox, Peak Power ~415hp/310kW, Peak Torque ~435ft.lbs/ 590nm, @ 1200Amps (red curves),    Cont. Power ~?, Cont. Torque ~?, and Max RPM 16,000 - these are the “performance” versions, secondary market units with optional Quaife LSD for superior traction control without requiring a Tesla-like electronic traction control system, best price-performance, but no warranty, and no Tesla will not sell you brand new warrantied units, so NOT applicable for new OEM vehicles. Motor-Controller-Gearbox picture   Drive unit with axles - half-shafts  Also available, as an option, are drive flange adapters to use Porsche 930 style CVs

QWC/SEV-400kW peak-400Vdc-RF-induction-Tesla-drive-unit - High Performance Tesla Drive Unit package - Peak Power ~536hp / 400 kW Peak Torque ~ft-lbs nm, Cont. Power ~hp / kW, Cont. torque ~ft-lbs. / nm and Max RPM 16,000.

Gearboxes

Both “off-the-shelf” (OTS) or Custom are available – contact us for specific parts, pricing and lead-time

OTS - Max input RPM 10,000 / Torque 600 ft-lbs. - Weight 32 lbs. - INLINE PLANETARY GEARBOX - Ratios 1.58, 1.69, 1.76, 1.80 and 1.98 and 2.4 to 1 with optional Parking Pawl unit - cable actuated, can also use CAN actuator as well. 

Custom - contact us with your requirements.

Past project shown below - Four (one per "dually") custom integrated dual two-speed gearbox and dual hvh410 motor assemblies.

Electronic Differential RWD Subsystems

Typically will include motors, controller-inverters/gearboxes, software on a VCU and HMI to control the subsystem. Example 400kW peak subsystem overview shown below (sensors not shown).  Example 70-100kW dual QWC-SEV35 or 50kW. – contact us for specific parts, pricing and lead-time. Some advantages of torque vectoring based Electronic Differential illustrated here.     (QWC/SEV-300kWpeak-750Vdc-AF/PH382-DR150kW shown in above picture – upgrade inverter-controller for this system – QWC/SEV-430kWpeak-750Vdc-AF/PH382-DR250kW)

Electric Outboards

Marine applications do not reap the benefits of regeneration to extend range as land-based vehicle enjoy, however, the powertrains are more energy efficient than ICE (internal combustion engine) powered and more and more certain waterways, resort locations, etc. restrict ICE usage. In addition, with renewable energy, the operational costs plus the lower maintenance makes electric marine powertrains a favorable alternative.

Electric outboards, 5hp, 10hp and 20hp (gas equivalent power), tiller or remote steering, that run on 48Vdc ESSs (battery subsystems) in short and long shaft version are also available. Stainless steering wheels, throttles, teleflex steering cables (3-9 meters), 5 and 20kWh marine ESS units and fused electrical connection cables are available upon special request.