High voltage (HV) safety interlock for HV components in a vehicle

摘要

High-voltage safety interlock for HV components in a vehicle with a HV connector (12), wherein in the HV connector (12) arranged a safety bridge (8) and via a decentralized control and regulating a HV component with a central vehicle control via an in-vehicle bus system or a simple switched signal is connected, wherein an LV power supply (4) is formed with galvanic isolation from the HV system, wherein a power stage (2) of the HV component via a microprocessor (3) as Bestanteil a decentralized control of a HV component is controllable and the microprocessor (3) from the LV system via the galvanically isolated LV power supply (4) is supplied with voltage, so that a vehicle system in case of faulty contact only on the lack of integrity of the HV system can be informed on this component and the vehicle system based on the information which HV component causes an error has performed a suitable action which prevents the fault-causing HV component from being damaged by directly influencing only the function of the HV component causing the fault.