High power inverter for hybrid and electric vehicles

ACH is a family of inverters, designed for nominal voltage levels from 100 V to 750 V and with continuous power levels of up to 300 kVA. The inverter functionality is easily customized for a optimal integration into the target vehicle, with Inmotions proprietary PLASMA software platform.

With a rugged design and an expected life time of over 60 000 hours, the ACH is the ideal choice for both on-highway and off-highway applications.


  • Best in class quality and reliability, achieved through superior design and world class manufacturing processes, backed up by field experience
  • Rugged IP6K9K design suitable for the demanding environment of electric vehicles
  •  4-quadrant, synchronous or asynchronous AC motor control, with speed, torque and DC-voltage control modes
  •  Field proven control SW platform used for onhighway and off- highway vehicles
  • Software quality is assured through development and review processes designed for compliance with Automotive SPICE©
  • CAN communication, J1939 and/or CANopen with support for diagnostics and software download
  • With continuous power levels up to 300 kVA, the ACH is ideally suited for hybrid as well as fully electric vehicle applications
  • Nominal voltage 350 and 650 V. Fully operational from 100 to 750 V bus voltage
  • Liquid (WEG) cooled
  • Automatic protection against overheating and over-voltage
  •  Redundant Discharge of DC-capacitors
  • Internal EMI filtering of the dc-bus eliminates interference with other electronic equipment and allows parallel operation of several ACH controllers
  • Powerful standard firmware features as well as extensive software configurability ensures optimal system functionality
  • Designed for a working life in excess of 60 000 hours
  • Extensive and powerful event handling and data logging simplifies troubleshooting and minimizes vehicle down time
  • Interlock for personal safety


 Compatible motor types Induction machines, PMAC, Sync. reluctance
 Operating modes  Torque, speed or dc voltage control
 Communication  CAN (J1939, CANopen, UDS)
 Switching frequency  1- 20 kHz programmable
 Fundamental frequency  0 - 599 Hz
Efficiency* >98 %
Nominal WEG coolant temp/flow 60 °C (140 °F) @ 20l/min
Pressure drop (ACH35M30 & ACH65M30) < 30 kPa @ 20 l/min (WEG 50 %/50 % @ 60 °C (140 °F)
Ambient operating temperature -40 °C to 100 °C (-40 °F to 212 °F)
Storage temperature -40 °C to 85 °C (-40 °F to 185 °F)
Protection class IP6K9K (cleaning and liquid agent resistant)
EMC According to ECE R10
High voltage safety ECE R100
Logic supply voltage 12 or 24 V
Logic connector TYCO MCP family
Power connectors M8 cable lugs

* At nominal DC voltage, running at rated continuous current


 ACH35 ACH65
 Nominal DC voltage  350 V 650 V
 Maximum DC voltage  450 V  850 V
 Full current available at  100 – 400 V  100 – 750 V


Model  Peak current**[ARMS] Cont. current***[ARMS] Peak power****[kVA] Cont. power****[kVA]
 ACH35M30 320 225 137 96
 ACH35M50*****  500  275  214 118
 ACH65M30  320  225  255 179
 ACH35L50  500  375  214 161
 ACH65L50  500  375  398 299

** 60 sec rating

*** At coolant temp 60 °C (140 °F), Ambient temp 85 °C (185 °F), and Switching frequency 4 kHz

**** At nominal DC bus voltage

***** Preliminary ratings