A simple circuit was designed to handle the existing control input from the car. When flashing with the low beam off, activate the halogen and its projector shutter. But when low beam is on, high beam or flash activates the bi-xenon shutter. Schematic as follows
Circuit produced
Another set of relay is used to convert the 3 wire AL solenoid to 2 wire input. We need to enable the strong pull solenoid momentarily before then activating the weak solenoid to hold the shutter down. Schematic follows, the capacitor would allow short energization of relay until it is fully charged, resistor is to discharge the capacitor
The relay set
Capacitor for HID to solve flickering problem
Capacitor for angel eyes, also for flickering problem
