Low-voltage network with a DC-DC converter and method for testing a low-voltage battery by employing pulses feed to the low-voltage battery to sense either voltage or current response
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01R-029/02
G01R-031/36
출원번호
US-0425484
(2013-07-05)
등록번호
US-9983267
(2018-05-29)
우선권정보
DE-10 2012 215 755 (2012-09-05)
국제출원번호
PCT/EP2013/064236
(2013-07-05)
국제공개번호
WO2014/037133
(2014-03-13)
발명자
/ 주소
Fassnacht, Jochen
Schmucker, Clemens
출원인 / 주소
Robert Bosch GmbH
대리인 / 주소
Michael Best & Friedrich LLP
인용정보
피인용 횟수 :
0인용 특허 :
89
초록▼
The invention relates to a DC-DC converter which is designed to supply a low-voltage network comprising a low-voltage battery and a battery sensor circuit with a low voltage, having a pulse generation device which is designed to feed electrical pulses into the low-voltage network in order to test th
The invention relates to a DC-DC converter which is designed to supply a low-voltage network comprising a low-voltage battery and a battery sensor circuit with a low voltage, having a pulse generation device which is designed to feed electrical pulses into the low-voltage network in order to test the low-voltage battery using the battery sensor circuit.
대표청구항▼
1. A DC-DC converter, which is configured to supply a low voltage to a low-voltage network that includes a low-voltage battery and a battery sensor circuit, the DC-DC converter comprising: a pulse generation device, which is configured to feed characteristic electrical pulses in a targeted manner fo
1. A DC-DC converter, which is configured to supply a low voltage to a low-voltage network that includes a low-voltage battery and a battery sensor circuit, the DC-DC converter comprising: a pulse generation device, which is configured to feed characteristic electrical pulses in a targeted manner for identifying a defect of the low-voltage battery through the battery sensor circuit into the low-voltage network, wherein the characteristic electrical pulses are at least one selected from a group consisting of a square-wave waveform, a saw-tooth waveform, and a sinusoidal waveform, andtransmit parameters relating to the characteristic electrical pulses to a network management device via a communications interface, wherein the network management device includes a synchronization device configured to synchronize the generation of the characteristic electrical pulses with the detection of operational parameters of the low-voltage battery using the parameters transmitted from the pulse generation device, wherein the generation of the characteristic electrical pulses occurs at the same time as the detection of operational parameters of the low-voltage battery,wherein a low-voltage consumer connected to the DC-DC converter is actuated to follow a safe actuation strategy in response to identifying a defect of the low-voltage battery, andwherein the DC-DC converter couples a high-voltage network of an electrical drive or generator system to the low-voltage network and supplies electrical energy to the low-voltage network from the high-voltage network. 2. The DC-DC converter as claimed in claim 1, wherein the pulse generation device is configured to generate at least one of a group consisting of current pulses, voltage pulses, and power pulses. 3. The DC-DC converter as claimed in claim 1, wherein the characteristic electrical pulses dynamically excite the low-voltage battery. 4. The DC-DC converter as claimed in claim 1, wherein the defect of the low-voltage battery includes at least one selected from a group consisting of a malfunction of the low-voltage battery, an anomaly of the low-voltage battery, and a failure of the low-voltage battery. 5. The DC-DC converter as claimed in claim 1, wherein the pulse generation device is configured to feed a multiplicity of characteristic electrical pulses in a predetermined sequence into the low-voltage network. 6. The DC-DC converter of claim 5, wherein a number of successive characteristic pulses included in the predetermined sequence of the multiplicity of characteristic electrical pulses is varied to eliminate disturbances in the low-voltage consumer. 7. A low-voltage network, comprising: a DC-DC converter as claimed in claim 1;a low-voltage battery; anda battery sensor circuit, which is configured to detect operational parameters of the low-voltage battery depending on the characteristic electrical pulses generated by the DC-DC converter and identify a defect of the low-voltage battery based on the operational parameters. 8. The low-voltage network as claimed in claim 7, wherein the battery sensor circuit has a detection device, a current sensor and a voltage sensor, and wherein the detection device is configured to detect the current from the low-voltage battery or into the low-voltage battery via the current sensor and to detect the voltage drop across the low-voltage battery via the voltage sensor. 9. The low-voltage network as claimed in claim 7, wherein the operational parameter of the low-voltage battery includes at least one selected from a group consisting of a temperature of the low-voltage battery, a performance parameter of the low-voltage battery, and an internal resistance of the low-voltage battery. 10. The low-voltage network as claimed in claim 7, wherein the battery sensor circuit detects the operational parameters of the low-voltage battery independently of a load consumption of the low-voltage network. 11. A method for testing a low-voltage battery, the method comprising: generating characteristic electrical pulses in a targeted manner by means of a DC-DC converter, which is configured to supply a low voltage to a low-voltage network that includes a low-voltage battery and a battery sensor circuit;feeding the characteristic electrical pulses into the low-voltage network, wherein the characteristic electrical pulses are at least one selected from a group consisting of a square-wave waveform, a saw-tooth waveform, and a sinusoidal waveform;transmitting parameters relating to the characteristic electrical pulses to a network management device via a communications interface;detecting operational parameters of the low-voltage battery by means of the battery sensor circuit depending on the characteristic electrical pulses, wherein the detection of the operational parameters of the low-voltage battery is synchronized with the generation of the characteristic electrical pulses using the parameters transmitted to the network management device, wherein the generation of the characteristic electrical pulses occurs at the same time as the detection of operational parameters of the low-voltage battery;identifying a defect of the low-voltage battery based on the operational parameters; andin response to identifying a defect of the low-voltage battery, actuating a low-voltage consumer to follow a safe actuation strategy based on the detected operational parameters,wherein the DC-DC converter couples a high-voltage network of an electrical drive or generator system to the low-voltage network and supplies electrical energy to the low-voltage network from the high-voltage network. 12. The method as claimed in claim 11, wherein the characteristic electrical pulses include at least one of a group consisting of current pulses, voltage pulses, and power pulses. 13. The method as claimed in claim 11, further comprising: transmitting the operational parameters of the low-voltage battery from the battery sensor circuit to the network management device via the communications link; andactuating, with the network management device, the DC-DC converter based on the operational parameters of the low-voltage battery. 14. The method as claimed in claim 11, further comprising: notifying a user about the defect of the low-voltage battery.
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