Sensor arrangement and method of using the same
First Claim
1. A sensor arrangement for use with an energy storage device, comprising:
- a controller;
a first sensor unit being coupled to a node of the energy storage device and to the controller, the first sensor unit provides the controller with a first sensor reading that pertains to a node parameter; and
a second sensor unit also being coupled to the same node of the energy storage device and to the controller, the second sensor unit is separate from the first sensor unit and provides the controller with a second sensor reading that also pertains to the same node parameter;
wherein the controller is configured to use the first and second sensor readings to evaluate the same node parameter and to detect an error with the sensor arrangement and/or the energy storage device.
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Accused Products
Abstract
A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of vehicles. An exemplary sensor arrangement includes a number of sensor units, a controller, and several connections, wherein two or more sensor units are coupled to each node of the battery pack and are coupled to the controller over different connections. An exemplary method is divided into two aspects: an error detection aspect and an error resolution aspect. Because the sensor arrangement provides multiple sensor readings for each node being evaluated, the method can enable the sensor arrangement to continue operating accurately and with redundancy even if it experiences a loss of one or more sensor units.
19 Citations
14 Claims
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1. A sensor arrangement for use with an energy storage device, comprising:
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a controller; a first sensor unit being coupled to a node of the energy storage device and to the controller, the first sensor unit provides the controller with a first sensor reading that pertains to a node parameter; and a second sensor unit also being coupled to the same node of the energy storage device and to the controller, the second sensor unit is separate from the first sensor unit and provides the controller with a second sensor reading that also pertains to the same node parameter; wherein the controller is configured to use the first and second sensor readings to evaluate the same node parameter and to detect an error with the sensor arrangement and/or the energy storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification