Collection: Test Equipment for Electric, Hybrid & Fuel Cell Vehicles

This depends on which property of the high-voltage battery is to be tested. Special high-voltage battery diagnostic systems are available for assessing the battery condition or state of health (SoH). After repairs or work on the battery housing, a leak test may be required, however. This requires pressure/vacuum generation, suitable measuring devices, and test adapters compatible with the battery system. Thermal management also plays an important role in electric and hybrid vehicles. Devices for testing cooling circuits and coolants are available for this purpose, among others.

During the SoH Read-Out, relevant data from the high-voltage battery is read out and evaluated via the battery management system. The vehicle remains stationary during this process.During the Drive Test, dynamic battery data under load is also captured during a short drive. This takes into account not only the stored or static battery data, but also the behavior of the high-voltage battery during a defined load.Which test procedure is available for a vehicle depends on the respective vehicle support.

The HVBD 01_LR Starter Package is ideal for getting started right away. It includes the required hardware, connectivity and annual license, as well as an initial testing allowance for SoH readouts and drive tests. Once the included battery checks have been used, additional testing allowances can be purchased separately. In addition to the appropriate hardware and a valid license, the vehicle in question must also be supported by the respective testing method.

For leak testing, it must first be considered which test method is specified by the vehicle or battery manufacturer. Depending on the application, pressure, vacuum, or pressure drop methods, as well as leak rate measurement, may be used. Autotestgeräte Leitenberger offers various solutions for pressure and vacuum generation, as well as digital pressure and flow measuring devices for this purpose. Suitable test adapters are required for connection to the respective battery housing or pressure compensation element. Before testing, the manufacturer's specifications for test pressure, test time, adaptation, and permissible test method must always be observed.

Certain high-voltage and fuel cell systems use special coolants with very low electrical conductivity. The conductivity can be measured and documented using a suitable conductivity meter. An increased conductivity reading may indicate that the coolant no longer meets the required specifications. Whether and at what reading measures are necessary depends on the coolant used and the specifications of the vehicle or system manufacturer. Conventional and specially electrically insulating coolants must not be mixed without appropriate approval from the manufacturer.

Electric and hybrid vehicles may have several separate cooling circuits, for example for the high-voltage battery, power electronics, and electric drive components.

For service and diagnostic work, devices for leak testing, evacuation and vacuum filling, as well as for checking important coolant properties, are available, among others.

Which devices, adapters, and coolants may be used depends on the respective vehicle and the manufacturer's specifications.

The required accessories depend on the test procedure and the respective vehicle or battery system. For leak testing, for example, special adapters for pressure equalization elements, connection hoses, or vehicle-specific test ports may be required.For HV battery diagnostics, on the other hand, the appropriate diagnostic hardware, connection cables, additional CAN adapters if necessary, a valid license, and an available test quota are required.Therefore, before ordering, it should be checked which test procedure is to be carried out and which vehicle or battery variant is present.