Control Pilot Signal Circuit [12/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
The electric vehicle charger assembly detects when a charging connector has been connected and charging is possible by using the CPLT signal (control pilot signal). The electric vehicle charger assembly will then start the plug-in charge control system and change the CPLT signal (control pilot signal).
Using the waveform duty ratio of the CPLT signal (control pilot signal), the electric vehicle charger assembly recognizes the rated amperage of a charging facility (a socket using a charging cable) or charging station. By changing the CPLT signal (control pilot signal), the electric vehicle charger assembly transmits the status that the vehicle is ready to start charging, to the charging cable (CCID unit).