Method and device for on-line automotive battery status monitoring based on fpga
A battery and battery voltage technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of no mature online monitoring system, decreased battery power storage capacity, increased static leakage, etc., to reduce risks and potential losses Possibility, small car modification, and the effect of avoiding potential safety hazards
Active Publication Date: 2015-11-25
HANTENG AUTOMOBILE CO LTD
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Problems solved by technology
However, there is no mature online monitoring system for common faults in automobiles, including battery failure, generator failure, battery storage capacity decline, and static leakage increase.
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[0064] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0065] In the FPGA-based online vehicle battery state detection method and device embodiment of the present invention, the flow chart of the method is as follows figure 1 As shown, the method includes the following steps:
[0066] Step S11 Start to work: In this step, everything is ready and the system starts to work.
[0067] Step S12 detects the working state of the automobile engine and the voltage value of the battery: by detecting the working state of the automobile engine (including two states of starting and flameout), it is known that the car is in the state of starting or flameout; by detecting the voltage value of the battery, it is used to judge whether the battery and whether the status of the generator is normal, the specific detection process is as follows: figure 2 shown.
[0068] Step S13 judges whether the state of the batt...
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The invention provides an FPGA-based (Field Programmable Gate Array) online automobile storage battery state monitoring method. The method comprises the following steps: starting working; detecting the working state of an automobile engine and the voltage value of an automobile storage battery; judging whether the states of the automobile storage battery and the automobile engine are normal; working out the remaining capacity of the automobile storage battery according to the voltage value of the automobile storage battery; acquiring the voltage values of the automobile storage battery both at the moment when an automobile flames out and a set period of time after the automobile flames out; and working out the power consumption of the automobile within 24 hours after flameout. The method further comprises the following steps: detecting leakage current of the automobile storage battery when the automobile flames out; and finally outputting the detection, calculation and judgment results. The invention also provides an FPGA-based online automobile storage battery state monitoring device for implementing the method. By the FPGA-based online automobile storage battery state monitoring method and device disclosed by the invention, the voltage, the remaining capacity, the leakage current and the power consumption in a flameout state of the automobile storage battery can be monitored on line, the performance of the automobile storage battery and whether a generator works normally or not can be judged, the potential safety risks of the automobile can be effectively reduced, and the use risk of the automobile can be lowered.
Description
technical field [0001] The invention relates to the field of automotive electronics, in particular to an FPGA (Field Programmable Gate Array, Field Programmable Gate Array)-based online automotive battery monitoring method and device. Background technique [0002] As we all know, the battery in the car plays a very important role in the use of the car. When the car is started, the battery provides electric energy to the generator to drive the engine to rotate. At the same time, the battery also supplies power to the car instrument, the magnetic field coil of the generator, and the ignition system of the gasoline engine. During the operation of the car, when the generator cannot support the power supply of the car, the battery also provides short-term auxiliary power supply; or when the generator has spare capacity, the battery stores the electric energy of the generator. In addition, the battery also has a filter function, which can absorb the overvoltage when the electric ...
Claims
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IPC IPC(8): G01R31/36
Inventor 赵杰余菲王静霞刘俐
Owner HANTENG AUTOMOBILE CO LTD