Drive systems, components and conversion solutions for electric vehicles – from consulting through development to assembly
E-Car-Tech Consulting GmbH
Rosenfeld · Sulz am Neckar (Renfrizhausen)New on Amplifa
About E-Car-Tech
E-Car-Tech Consulting GmbH, with administration and production in Sulz am Neckar (Renfrizhausen), is an engineering partner for electromobility with over 17 years of experience and more than 100 completed e-mobility projects. The company develops and markets drive systems and components for the electric conversion of vehicles of all kinds, including AC motor controllers, the E-Car-Box as a drive control unit, motor sets with Engiro GmbH, interface modules (SEI), charging communication modules (E-Car-Comm), battery management systems (BMS) and control modules for vacuum pumps. The services include consulting, development of individual software solutions, project support through to the finished product, as well as assembly and programming in the company's own workshop. Fields of application are e-vehicles, e-vans, e-construction machinery, e-boats and motorsport; an Amarok with an E-Car-Tech drive system and hydrogen fuel cell was in 2024 the first pure electric vehicle in the history of the Rallye Dakar. In 2021 the company moved into a larger workshop hall in Renfrizhausen directly on the A81, in which administration and production are united under one roof. Partnerships exist, among others, with Engiro GmbH, E-Lions H2 and IONTRAK energy GmbH.
- Site
- Rosenfeld
- Processes
- Electric conversion of passenger cars/commercial vehicles to electric drive (e-conversion kit,, Project management and implementation of e-mobility solutions through to the finished product, Development of individual software solutions for electromobility, Consulting on electromobility projects, Work on vehicles using a vehicle lift (conversion/assembly), Testing and assembly activities in own workshop hall (production, administration under one roof), Electric conversion of vehicles (drive systems), Consulting on all aspects of electromobility
- Materials
- Lithium battery (lithium batteries), Steel (chassis VW Crafter COXX), Electric drive components
- Industries
- Electromobility, Automotive/passenger car conversion, Vans/commercial vehicles, Construction machinery (e-construction machinery), Boats/e-boats, Motorsport (Rallye Dakar)
- 01
Consulting
- 02
Development of individual software solutions
- 03
Project support/implementation
- 04
Component distribution (motor controllers, E-Car-Box, BMS, charging
- 05
Assembly/conversion in own workshop
- 06
Programming/parameterization of the controllers
Components & System Voltages
Lithium battery (lithium batteries)
Basis of the individually configurable battery management systems (BMS) for small and large battery packs.
Electric drive components
Motor controllers and drive systems for system voltages from 24V to 144V and currents from 175A to 800A.
Locations
Sulz am Neckar (Renfrizhausen)
DEAdministration and production (workshop hall, directly on the A81)
- Materials
- Lithium battery, steel
- Vehicle lift
- Overhead crane
- Wallboxes (in-house)
- Separate lithium battery storage room
Rosenfeld
DEBusiness address / contact
Products & Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electric conversion of passenger cars/commercial vehicles to electric drive (e-conversion kit,Assembly | – | – | – | – | Lithium battery, Steel, Aluminum, Plastic |
| Project management and implementation of e-mobility solutions through to the finished productEngineering | – | – | – | – | – |
| Development of individual software solutions for electromobilityEngineering | – | – | – | – | – |
| Consulting on electromobility projectsEngineering | – | – | – | – | – |
| Work on vehicles using a vehicle lift (conversion/assembly)Assembly | – | – | – | – | – |
| Testing and assembly activities in own workshop hall (production, administration under one roof)Testing | – | – | – | – | – |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vehicle lift (for vehicle work) | – | – | – | – | Workshop hall Renfrizhausen, Obere Talstr. 5, Sulz am Neckar |
| Overhead crane | – | – | – | – | Workshop hall Renfrizhausen, Sulz am Neckar |
| Wallbox (in-house, for presentation and use purposes) | – | – | – | – | Workshop hall Renfrizhausen, Sulz am Neckar |
Additional services
Reference customers
History
- 2019
Blog post on new lithium-ion battery technology (English post with audio available).
- 2021
Move into a renovated, larger workshop hall in Renfrizhausen (Sulz am Neckar, directly on the A81); consolidation of administration and production under one roof; including vehicle lift area, in-house wallboxes, overhead crane and separate lithium battery storage room.
- 2024
First pure electric vehicle in the history of the 2024 Rallye Dakar (Amarok with E-Car-Tech drive system and hydrogen fuel cell system); 7th place in the Mission Mille; coverage in the Zollernalb Kurier.
- 2024
Joint installation of a publicly accessible defibrillator at the goods receiving area of the Brombach + Gess, B+G Metall and E-Car-Tech group in Renfrizhausen.
- 2024
Visit of Sulz mayor Jens Keucher to E-Car-Tech and partners (source: Schwarzwälder Bote, September 2024).
- 2026
Coverage of E-Car-Tech on ZDF Mittagsmagazin (January 14, 2026).
- 2026
VW COXX Crafter premiere with e-drive from E-Car-Tech and fuel cell (with partners E-Lions H2 and IONTRAK energy GmbH) at the IAA Transportation 2026.
- 2026
Expert lecture by managing director Dieter Franz at the Technology Day of DHBW Stuttgart (September 16/17, 2026, topic Clean Urban Transportation).