| 摘要 |
A voltage supply system having a first battery with a first anode and a first cathode, and a contactor coupled in series between the first anode and an electrical node is provided. The system includes a first voltage sensor generating a signal indicative of a first voltage level of the first battery, and a second voltage sensor generating a signal indicative of a second voltage level between the electrical node and the first cathode. The system includes a DC-DC voltage converter coupled between the electrical node and the first cathode; and a second battery, and a microprocessor. The microprocessor disables operation of the DC-DC voltage converter such that the converter does not apply a voltage to the second battery, if both the first voltage level is substantially equal to the second voltage level, and the first voltage level is less than a first threshold voltage level. |
| 主权项 |
1. A voltage supply system, comprising:
a first battery having a first anode and a first cathode, the first battery adapted to generate a first voltage level between the first anode and the first cathode; a contactor electrically coupled in series with and between the first anode and an electrical node; a first voltage sensor electrically coupled in parallel with the first battery, the first voltage sensor adapted to generate a first voltage signal indicative of the first voltage level; a second voltage sensor electrically coupled between and to the electrical node and the first cathode of the first battery, the second voltage sensor adapted to generate a second voltage signal indicative of a second voltage level between the electrical node and the first cathode; a DC-DC voltage converter electrically coupled between and to the electrical node and the first cathode; a second battery having a second anode and a second cathode, the second anode electrically coupled to the DC-DC voltage converter, the second battery adapted to generate a third voltage level between the second anode and the second cathode, the third voltage level being less than the first voltage level; a microprocessor operably coupled to the first voltage sensor, the second voltage sensor, the contactor, and the DC-DC voltage converter; the microprocessor being programmed to stop generating a first control signal to attempt to induce the contactor to transition a contact from a closed operational position to an open operational position; and the microprocessor being further programmed to disable operation of the DC-DC voltage converter such that the DC-DC voltage converter does not apply an output voltage to the second battery, if both the first voltage level is substantially equal to the second voltage level indicating that the contact has the closed operational position, and the first voltage level is less than a first threshold voltage level. |
