Charging Control

The Task

Developing and testing the DC charging process using a vehicle charging controller.

The Challenge

The charging controller monitors the high-voltage battery of the vehicle to ensure reliable charging. During the charging process, the in-vehicle charging controller and the charging station interact. It is therefore necessary to equip the HIL systems used to validate the interaction and control algorithms with plant models of the battery and of the charging station.

The Solution

ASM provides a ready-to-use demo model for battery electric vehicles, including the real-time-capable simulation of the high-voltage battery. The demo model also includes a charging station emulation where the DC charging voltage depends on the vehicle current demand provided by the in-vehicle charging controller under test. If no real in-vehicle controller is available, ASM provides a software control unit that applies a constant current constant voltage (CCCV) charging process, which includes a pre-charge phase for low cell voltages. The models of the ready-to-use demo model are completely prepared so that all the signals required for communication with the control units are available. This enables users to test the control algorithms as well as the interfaces between all devices, including the charging communication between the electric vehicle supply equipment and the electric vehicle communication controller, according to standards such as ISO 15118, CHAdeMO, and GB/T 27930.

Success Stories

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