A high-voltage relay system for a vehicle. The system includes a high-voltage bus, a parallel relay set and a controller. The parallel relay set includes two or more relays wired in parallel and that are electrically coupled to the high-voltage bus. The controller is programmed to adjust the power flowing through the parallel relay set when a malfunction is detected in one of the relays in the set. The system can include a high-voltage power source electrically coupled to the high voltage bus through the parallel relay set, where the controller reduces the power flowing through the parallel relay by reducing output of the high-voltage power source. The system can include a high-voltage motor electrically coupled to the high voltage bus through the parallel relay set, where the controller reduces the power flowing through the parallel relay set by reducing the motor's power demands.
Scalable high voltage charging and detection system for plug-in electric vehicles
2016-06-28
Patent
Electronic Resource
English
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