Remote Battery Diagnosis – Monitoring the Battery State with IVImon

Battery State Monitoring

Operators in the emerging hybrid and electric vehicle market lack the option of assessing the disposability and state of their vehicles, most importantly that of the batteries. Sometimes, however, disposability is a crucial factor for success. The IVImon system determines relevant state parameters of the battery storage unit and provides them in a user-friendly way. With these features, IVImon provides the basis for a number of new business models.

System Overview

Remote diagnosis steps with IVImon
Remote diagnosis steps with IVImon

Remote Diagnosis of Energy Storage Units

in the field of electromobility, e. g., for public transport, shipping, logistics; of starter batteries in conventional vehicles; of stationary energy storage units such as USV, solar storage systems

Data Security

Secure transmission using certified, commercial telemetry devices and with safe data storage on servers located in Germany

Customer Benefits

User-friendly processing, provision and visualization of the evaluations (remaining capacity, internal resistance, inspection intervals, ageing analysis, ageing trends, individually adjustable) via web interface

Application Example: Electromobility in Public Transport and the Logistics Sector

Customizable dashboard-based web interface of the system

Operators in the emerging hybrid and electric vehicle market lack the option of assessing the disposability and state of their vehicles, most importantly that of the batteries. However, especially in the traffic sectors of freight shipping and public transport, the disposability is a crucial factor for success.

The IVImon system determines relevant state parameters of the battery storage unit, processes them and provides them in a user-friendly way via a conventional or web interface. With these features, IVImon provides the basis for a number of new business models such as

  • Vehicle operators (public transport provider, communities, logistics operators)
    • Ageing monitoring, storage unit-saving deployment planning, estimation and prognosis of performance
    • Analysis of consumption
    • Monitoring of residual value
  • Providers of vehicle and battery systems
    • Predictive maintenance and inspection services
    • »Guaranteed disposability«
    • Warranty monitoring
  • Insurance companies and lessors
    • Legally secure, application-appropriate and technology-adapted design of contracts and insurance policies
    • Monitoring of residual values and amortisation

With the agreement and support of the manufacturers, we will install a certified commercial telemetry device (has all necessary certificates for use in private and commercial vehicles, as well as trains) in the vehicles that records all available measuring data and transmits them safely. It will not be necessary to modify the powertrain, the energy storage unit, or any other systems.

The measuring data and state parameters necessary for the operation of the energy storage system, which will be available in any case, are sufficient for fundamental diagnosis and even for highly complex system state analyses and prognoses. After their transmission to a data bank server, which automatically evaluates the recorded data with the help of electrochemical models and algorithms, the evaluations are provided in a simple, comprehensible and reusable way to the circle of contractually authorized parties via an API interface or a web interface. The scope and functionalites can be individually adjusted by the owner of the data.


Estimated results of the remaining capacity and the internal resistance of a li-ion cell in an electric bus, based on telematics data
  • Recording of battery parameters in a vehicle using existing proprietary sources (CAN buses or others); largely independent of the respective battery chemistry (common lithium-ionen technologies, Pb acid)
  • Option of transmitting and storing additional customer-specific data
  • Intermediate data storage and pre-processing (filtering, compressing) on-board the vehicles and subsequent transmission using wireless transmission methods (GSM to 3G, Wi-Fi, Bluetooth, depending on availability)
  • Data security ensured through point-to-point encryption by a proprietary HTTPS certificate and modern, client-based data management systems
  • Data processing in regular intervals with the help of efficient algorithms, storage, visualization and provision of results – precise to the minute in high-quality networks

Selected Projects

iHUB - Fleet Logistics for Electromobility

Intelligent, IT-based platform for sustainable, efficient electric infrastructure and fleet management system in logistics hubs

Implementing electromobility is especially challenging for general cargo logistics: In this sector, it is essential to be fast, on time and reliable. For this reason, logistics providers need transport vehicles that are disposable at all times and without any constraints. Because of their need to be recharged after a certain number of kilometers driven, electric vehicles have a disadvantage in terms of disposability compared to diesel-powered trucks. For logistics providers, the operation of electric vehicles is only economically worthwhile if a central fleet management system decides in a needs-based way whether an electric truck or a Diesel truck is better suited for a given tour. Therefore, the integration of electric trucks into the vehicle fleets of logistics providers requires an intelligent control mechanism that compensates for any disadvantages and uses dynamic route planning to allocate transport missions to electric trucks only if they are able to carry out the missions with the same level of reliability as Diesel trucks. Battery state, cargo planning and the length of distribution routes are the most important parameters for this decision.

The key development focus of the »iHub« project is on establishing a prototypical IT platform for the aforementioned purposes. In addition to addressing technological challenges, the iHUB system will also make sure that the solution developed presents an economically viable alternative to conventional truck fleets. In order to optimize the fleet's overall economic efficiency, the »State of Use«, which refers to the level of battery degradation, and other parameters that facilitate the consistent operation of electric vehicles are taken into consideration. For this reason, the new Framo electric truck that has been operated within the context of the iHUB project on the roads of Berlin since February, 2018 is equipped with a new e-truck navigation system and its operation is accompanied by a comprehensive measuring campaign. Within this campaign, battery data are recorded and evaluated in real-time. Suitable mathematic algorithms detect key parameters of daily operation and derive information on battery stress. At the end of the campaign, the results are to be transferred to larger vehicle fleets. If the systemic advantages of electromobility – such as lower greenhouse gas and noise emissions – can be exploited for the operation of a mixed vehicle fleet in a beneficial way with the help of IT methods, an important development step towards post-fossil fuel, emission-free logistics will have been completed.

After the six consortium partners had already started working on their tasks in January, 2016, the project was officially kicked off in March. The results were presented in October, 2019 at a roadshow event with the title »Klimaneutrale Logistik – (un)möglich?« (»Climate-Neutral Logistics – (Im)possible?«).
The project received funding within the scope of the »IKT für Elektromobilität III« program of the Federal Ministry for Economic Affairs and Energy.