Storage battery state detection device and detection method thereof
The technology of a state detection device and a current detection device is applied in the direction of measurement device, measurement of electricity, measurement of electric variables, etc., which can solve the problems of complex current detection device, high implementation cost, deviation of results, etc., and achieves simple structure, reduced hardware cost, The effect of low hardware requirements
Inactive Publication Date: 2012-07-18
力帆科技(集团)股份有限公司
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Problems solved by technology
[0006] However, this method needs to accurately detect the current flowing through the battery and perform an accumulation operation
Because there is an error in current detection, and the error will always accumulate, the result will have a large deviation over time
At the same time, because the working current range of the car battery is very large, the detection range of the sensor needs to be from a few milliamps to hundreds of amps, and the detection accuracy is quite high and needs to reach the milliampere level, so the current detection device is quite complicated and the implementation cost is quite high
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[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0034] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.
[0035] The storage ...
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The invention provides a storage battery state detection device and a detection method of the storage battery state detection device. The storage battery state detection device comprises a storage battery, a power generation device connected with the storage battery in parallel and having a power generation current feedback function, and an electric load connected with the storage battery through a switch, and further comprises a power generation current detection device, a voltage detection device, a load detection device and a storage battery state determination device. The storage battery state detection device provided by the invention only needs to detect the output characteristics of a generator of a finished vehicle, the electric state of the finished vehicle and the voltage of the storage battery for determining the state of the storage battery, with no need for precise and direct detection of the current of the storage battery. In addition, the storage battery state detection device of the invention is simple in structure and easy to implement, and meanwhile can reduce the cost. The detection method of the storage battery state detection device provided by the invention determines the state of the storage battery according to the power generation current of the power generation device, the electric load current of the finished vehicle and the work voltage of the storage battery, and the detection method is simple and rapid.
Description
technical field [0001] The invention relates to the field of storage battery state detection, in particular to a detection device and a detection method for the state of a storage battery used for starting an automobile. Background technique [0002] At present, many vehicles have an engine idling start-stop control system, and the start-stop controller needs to know whether the current state of the battery meets the requirements for the next start. In general, the following devices are recommended as the state detection device for the lead-acid battery used for starting automobiles, that is, a voltmeter connected to the lead-acid battery, an ammeter connected in series to the negative pole line of the battery, and a battery mounted on the negative pole of the battery. A temperature gauge and an operation controller unit form a power sensor. Among them, the voltmeter is used to measure the voltage of the battery, the ammeter is used to measure the current passing through th...
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IPC IPC(8): G01R31/36
Inventor 周映东
Owner 力帆科技(集团)股份有限公司
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