Power source control system
AssigneeYazaki Corporation
InventorMasato SASAHARA
Life of this patent
Estimating the term…
Abstract
A power source control system includes a first power source, a second power source, a first switch, a second switch, a first voltage detector, a second voltage detector, and a control unit. The first power source supplies power to a first load and a second load. The second power source supplies power to the second load when an abnormality occurs. The control unit detects the presence or absence of an abnormality based on a voltage detected by the first voltage detector and/or the second voltage detector. In addition, the control unit switches on the first switch and switches off the second switch in a normal state. Further, the control unit switches off the first switch and switches on the second switch when an abnormality is detected.
Claims5
A power source control system comprising:
- a first power source that supplies power to a first load and a plurality of second loads provided in a vehicle via a first conductive path connected to the first load and a second conductive path connected to the plurality of second loads;
- a second power source that supplies power to the second load via the second conductive path when an abnormality occurs in the first load or the second load;
- a first fuse that is provided in the first conductive path and fused when an abnormality occurs in the first load;
- a plurality of second fuses, which are provided in the second conductive path, corresponding to each of the plurality of second loads and fused when an abnormality occurs in the second load;
- a first voltage detector that is connected to the first conductive path and detects voltages of the first load and the plurality of second loads;
- a second voltage detector that is connected to the second conductive path and detects voltages of the plurality of second loads;
- a first switch having one end connected to the first power source and the other end connected to the second conductive path;
- a second switch having one end connected to the second power source and the other end connected to the second conductive path;
- and
- a control unit,
- wherein the control unit includes:
- an abnormality detector that detects the presence or absence of an abnormality in the first load or the second load based on a voltage detected by the first voltage detector and/or the second voltage detector;
- and
- a switch control unit that switches on the first switch and switches off the second switch in a normal state, and switches off the first switch and switches on the second switch when the abnormality detector detects an abnormality in the first load or the second load.
A power source control system comprising:
- a first power source that supplies power to a first load and a plurality of second loads provided in a vehicle via a first conductive path connected to the first load and a second conductive path connected to the plurality of second loads;
- a second power source that supplies power to the second load via the second conductive path when an abnormality occurs in the first load or the second load;
- a first fuse that is provided in the first conductive path and fused when an abnormality occurs in the first load;
- a plurality of second fuses, which are provided in the second conductive path, corresponding to each of the plurality of second loads and fused when an abnormality occurs in the second load;
- a voltage detector that is connected to the first conductive path and detects voltages of the first load and the plurality of second loads;
- a first switch having one end connected to the first power source and the other end connected to the second conductive path;
- a second switch having one end connected to the second power source and the other end connected to the second conductive path;
- a current detector connected in series with the second switch;
- and
- a control unit,
- wherein the control unit includes:
- an abnormality detector that detects the presence or absence of an abnormality in the first load or the second load based on a voltage detected by the voltage detector and/or a current detected by the current detector;
- and
- a switch control unit that switches on the first switch and switches off the second switch in a normal state, and switches off the first switch and switches on the second switch when the abnormality detector detects an abnormality in the first load or the second load.
Dependencies are inferred from the claim text.