vCharM: Enterprise-Grade Charging Station Management System

vCharM is a charging and load management back-end. It is designed to operate many charging points at high availability. Once a charging station has been connected to vCharM, each charging point can be conveniently configured, monitored and controlled.

The software can be used to cover a variety of cases: It can be applied to manage charging points and vehicles in fleets, depots or parking lots, either as a stand-alone software or integrated into an existing fleet or depot management system. In addition, it can also be used for the installation and maintenance of charging points. Depending on the use case the features will be configured. 


  • Charging station manufacturer-independent solution using standardized communication protocol OCPP 1.6J, OCPP 2.0 and OCPP 2.0.1
  • Optimized for fleet operators, e.g. bus depots, special vehicle fleets, company vehicle pools, car parks and other electric vehicle fleets
  • Optimized load management for vehicles with and without smart charging according to ISO 15118 and DIN 70121
  • Connection to fleet management system for automated exchange of vehicle data
  • Vehicle authorization via RFID, PnC, Autocharge and other methods
  • Control of vehicle preconditioning via Value-Added-Service according to VDV 261

The Starter Kit

Our Starter Kit especially tailored for home office!


Start Developing and Operating your Charging Stations with our Starter Kit:

  • 2 vSECC units with 1 CCS interface each
  • 6-month test license for our Charging Station Management System vCharM
  • 20 hours support (hotline)
  • Coaching via webinars or individual sessions
  • Getting started documentation, manuals and necessary files
  • Optional: 6-week test license for CANoe
  • Optional: Linux notebook and power supply
  • Refund for returned hardware within trial period possible


Load Management

Manage load consumption dynamically with configurable charging strategies

Load management is required at the latest when the total power of the charging stations exceeds the available installed power. However, costs can also be saved beforehand by avoiding peak loads at individual charging stations. The operator decides on the prioritization of the charging processes by selecting the charging strategy that suits best.

Charging Station Control

Monitor, configure and control charging stations via OCCP 1.6J and OCPP 2.0

Charging points can be configured, monitored and controlled via the user interface. Guided dialogs support the operator in his various tasks. In case of problems with a charging session, the operator is notified and supported in failure diagnosis. Communication with the charging station is via the manufacturer-independent OCPP protocol.

Vehicle Preconditioning

Monitor and control individual vehicle preconditioning via the implementation of Value-Added-Services

The control of the preconditioning of electric buses was standardized by the Verband Deutscher Verkehrsunternehmen (VDV) as a Value-Added-Service. vCharM supports the VDV 261 specification and offers various control interfaces.

Vehicle Authorization

Manage and verify vehicle authorization requests

Various methods are available for the authorization of charging sessions. vCharM supports established technologies such as RFID chips and Autocharge. It is also prepared for future vehicles with ISO 15118 Plug&Charge functionality.


Generate and analyze reports with statistics of finished charging sessions

Reports with statistics on completed charging operations can be created for various purposes. Pre-defined reports can be customized and exported if desired.

Fleet Management

Automate data exchange with your fleet management system

Existing fleet and depot management systems can be integrated via an automated data interface and used for optimized load management or pre-conditioning control. Fleet and depot management systems can use vCharM data for their own purposes, e.g. for availability display. Further tools can also be integrated, such as a maintenance ticket system.


Log transactional data of charging sessions in law-conform manner

Meter readings are centrally recorded and processed. The data is made available for billing transactions. The meter readings can be protected against manipulation by a digital signature in order to meet the requirements of the new calibration law.

User Interface

Use vCharM from a browser-based frontend with a modern and intuitive user experience

A browser-based interface allows the user access to all functions. The views are adapted to the respective user role. The interface is available in different languages. An HTTPs connection secures the access.

Supported Standards

  • OCPP 1.6J & 2.0
  • VAS/VDV 261
  • ISO 15118
  • DIN 70121
  • IEC 61851
  • IEC 63110 (planned)

System Architecture

The vCharM architecture provides a REST interface for the integration into other management systems. The exchanged data can be used to optimize the charging sessions and the operational business.

Smart Charging with ISO 15118

Example of an ISO 15118 message with a PMaxSchedule. The maximum power profile is calculated by vCharM for every charging session and transmitted to the charging station via OCPP. The charging station uses ISO 15118 to limit the power consumption according to the received profile.

The protocols ISO 15118 and OCPP 2.0 provide a comprehensive interface to control the power consumption of charging procedures for electric vehicles. vCharM uses these mechanisms to adhere to physical limits of the infrastructure as well as to guarantee the ideal scheduling of charging sessions.
A load management algorithm depends highly on the charging environment and the customer needs. vCharM offers different algorithms, each optimized for a specific use-case. This enables the usage of vCharM in different application areas, e.g. for bus depots, special vehicle fleets, company vehicles pools, car parks and other EV fleets. 

Hosting Variants

vCharM can be operated on-premises or in the cloud, depending on the customer requirements. It is even possible to combine the benefits of both models and operate vCharM in a hybrid mode.


vCharM Fact Sheet

Get an overview on the benefits and the technical specifications.

Download Fact Sheet (PDF)

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