Kia Niro: High Voltage Battery Control System / Pre-Charge Relay Description and operation
| Description |
Built into the Power Relay Assembly (PRA), the Pre-Charge Relay starts to charge the capacitor of the inverter soon after ignition "ON", then it goes out when the capacitor has been fully charged.
|
1. High Voltage Power Terminal (-) 2. High Voltage Power Terminal (+) 3. Battery Current Sensor 4. Inverter Power Terminal (-) 5. Inverter Power Terminal (+) 6. Pre-Charge Resistor |
7. Main Relay (+) 8. Pre-Charge Relay 9. Main Relay (-) 10. Power Relay Assembly Connector (Battery current sensor signal input) 11. Power Relay Assembly Connector (Main relay control) |
| [PRA Operation Sequence] |
Pre-Charge Relay Specifications
Specification
Item
Specification
Contact
Rated Voltage (V)
450
Rated Current (A)
10
...
Pre-Charge Relay Schematic diagrams
Circuit Diagram
...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Repair procedures
Diagnosis With KDS/GDS
1.
BSD system defects can be quickly diagnosed with the KDS/GDS. GDS operates
actuator quickly to monitor, input/output value and self diagnosis.
2.
Connect the cable of KDS/GDS to the data link connector in driver side ...
Kia Niro 2017 (DE HEV) Service Manual: SRS Control Module (SRSCM) Description and operation
Description
The primary purpose of the SRSCM (Supplemental Restraints System Control Module)
is to determine between an event that warrants restraint system deployment and an
event that does not. The SRSCM must decide whether to deploy the restraint system
or not. After determinin ...
