Thermal test benches manufacturing

Manufacture of cooling test benches for electric drive trains and batteries

In the coming years, you will gradually replace your thermal engine test benches with test benches for electric drive trains, batteries and cooling systems.

Since 2009, Exoès has been building turnkey test benches for its customers, from manufacturing to installation, all over the world. During a delivery, Exoès trains its customers’ teams to make them autonomous and independent while guaranteeing a high level of service and reactivity.

The bench, the prototype to be tested, your teams’ training:
at Exoès, you will have much more than a test bench!

A unique offer for immersion cooled batteries: test bench and prototype modules or complete battery packs


For its customers, Exoès develops the immersion cooled battery module or the complete battery pack as well as the test bench necessary for its operation, the measurement of its performances and its safety.

Example of synoptics of system benches developped by exoes

A typical battery test bench consists of :

An acquisition
and control chassis

A fluid
conditioning unit

A power
supply unit

Communication
via CANbus
and Ethernet

A secure
test cell

A fluid
filling bench

An acquisition
and control chassis

A mobile acquisition and control chassis including a tropicalised autonomous automaton dedicated to the acquisition of about fifty analogue channels as well as to the control of valves and pumps and to the management of safety (redundant and failsafe system). This frame may include a function for supporting the prototype to be tested, particularly in the case of testing isolated modules.

A fluid
conditioning unit

A fuid conditioning unit that controls the temperature and flowrate, and preserves the dielectric properties

A power
supply unit

A power supply unit to cycle the battery and guarantee their integrity (voltage and current supervision via BMS, contactors, precharge, fuse, etc.)

Communication
via CANbus
and Ethernet

The components of our test benches communicate via CANbus and Ethernet to a supervision computer equipped with a dedicated open-source application software developed on Labview

A secure
test cell

This test bench must be used in a secure test cell, tailored to your needs, from 1 to several dozen cubic metres. This chamber also provides temperature and humidity control, ventilation, toxic gas monitoring and battery fire management.

A fluid
filling bench

We connect this test bench to an automatic bench for purging, filling and cleaning the dielectric fluid.

This type of bench allows the following tests to be carried out:

– Thermal performance (cooling, heating)

– Abuse testing: nail penetration test, short circuit, overheating or overvoltage

– Ageing tests

In addition to our test bench services, we offer the following services:

– Training your teams

– Day-to-day remote troubleshooting

– Providing on-site maintenance

– Calibrating sensors

– Updating the control software and configuring the data acquisition system to follow the evolution of your test requests

Our test benches can be customised to your needs.

The design of prototype modules or complete immersion-cooled battery packs are also part of our core skills.