astra_conv:conversion:wiring_logics:wiring_logics
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astra_conv:conversion:wiring_logics:wiring_logics [2014/03/16 13:32] richard |
astra_conv:conversion:wiring_logics:wiring_logics [2014/05/20 17:42] richard |
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| ==== BMS peripherals board ===== | ==== BMS peripherals board ===== | ||
| - | The BMS peripherals board comprises three rather independent circuits that cover different logics tasks. They however share some power supply and signal inputs. | + | The BMS peripherals board, which is located in the rear distribution box, comprises three rather independent circuits that cover different logics tasks. They however share some power supply and signal inputs. |
| - | Please see the circuit diagram and a view of the circuit board below. A top view of the board with explanations of the different terminals and LEDs is provided in the chapter "rear distribution box". | + | Please see the circuit diagram and a view of the circuit board below. A top view of the board with explanations of the different terminals and LEDs is provided in the chapter [[astra_conv:conversion:distribution_boxes:distribution_boxes#trunk_distribution_box|"trunk distribution box"]]". |
| {{:astra_conv:conversion:wiring:bms_peripherals_11.jpg?900|}} | {{:astra_conv:conversion:wiring:bms_peripherals_11.jpg?900|}} | ||
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| === charger lock === | === charger lock === | ||
| - | This circuit is actually only a small conventional relay. It opens the 20mA loop of the HV battery charger und thus disables the device when ignition is on. This shall avoid overcharging of individual traction battery cells: While ignition is on, the BMS system is not able to correctly detect "high voltage threshold crossed" events, but wrongly interprets them as "low voltage threshold crossed" events. Therefore, BMS will not shut down the charger in time while ignition is on. | + | This "circuit" is actually only a small conventional relay. It opens the 20mA loop of the HV battery charger und thus disables the device when ignition is on. This shall avoid overcharging of individual traction battery cells: While ignition is on, the BMS system is not able to correctly detect "high voltage threshold crossed" events, but wrongly interprets them as "low voltage threshold crossed" events. Therefore, BMS will not shut down the charger in time while ignition is on. |
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astra_conv/conversion/wiring_logics/wiring_logics.txt ยท Last modified: 2014/05/20 17:45 by richard
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