Method and device for vehicle battery protection with battery power source noise pattern analysis
First Claim
1. A method for vehicle battery protection with battery power source noise pattern analysis comprising the steps of:
- i) getting power source signal from positive and negative poles of a main battery and a backup battery of vehicles;
ii) measuring voltage of the main battery at a specific sampling time;
iii) measuring current of the backup battery at a specific sampling time;
iv) measuring voltage of the backup battery at a specific sampling time;
v) measuring voltage noise of a vehicle generator at a specific sampling time;
vi) enter a first power management pattern when detected voltage values of successive sampling signals of the main battery in a certain interval are higher than the third voltage;
vii) enter a second power management pattern when detected voltage values of successive sampling signals of the main battery in a certain interval are lower than the first voltage;
viii) enter a seventh power management pattern when detected current values of successive sampling signals in a certain interval are higher than the limited current, wherein, the successive sampling time in a certain interval ranging from 5 to 8, or equivalent with sampling time;
ix) when the detected battery voltage values of successive sampling signals in a certain interval are lower than the third voltage and higher than the second voltage, and the power source noise variation matches noise pattern that the generator charges the batteries, it is learned that the vehicle is turned on normally and the generator charges the main battery as well as the backup battery so that a third power management pattern is taken;
wherein the successive sampling times of the main battery in a certain interval ranging from 4 to 9, or equivalent with sampling time, and the successive sampling times of the noise in a certain interval ranging from 6 to 10, or equivalent with sampling time;
x) when the detected battery voltage values of successive sampling signals in a certain interval are lower than the second voltage and the voltage noise variation doesn'"'"'t match noise pattern that the generator charges the batteries, it is leaned that the engine is off and stops charging the batteries while other electric appliances still consume power, and a fourth power management pattern is taken;
wherein the successive sampling times of the main battery in a certain interval ranging from 4 to 9, or equivalent with sampling time, and the successive sampling times of the noise in a certain interval ranging from 6 to 10, or equivalent with sampling time;
xi) under the fourth power management pattern, when the preset timing of a variable timer is up, take the fifth power management pattern;
wherein the time of the variable timer is set from 0 minutes to the defined hours and the switches are turned on at predetermined interval;
xii) when the detected battery voltage values of successive sampling signals in a certain interval are lower than the first voltage and the power source noise variation doesn'"'"'t match noise pattern that the generator charges the batteries, it is leaned that the engine is off and stops charging the batteries while other electric appliances still consume power so that the main battery power is lowered to safe limit, and a sixth power management pattern is taken;
wherein the successive sampling times of the main battery in a certain interval ranging from 4 to 9, or equivalent with sampling time, and the successive sampling times of the noise in a certain interval ranging from 6 to 10, or equivalent with sampling time;
xiii) on the first power management pattern, cut off and stop charging the main battery as well as the backup battery, and display that the batteries are full charged;
xiv) on the second power management pattern, take alarming and display that the battery voltage is low;
xv) on the third power management pattern, connect and charge the main battery as well as the backup battery, and display charging status;
xvi) on the fourth power management pattern, display power exhaustion of the main battery, and supply power from the backup battery;
xvii)on the fifth power management pattern, cut off power supply from the main battery when the preset time is up, display power exhaustion of the main battery, and supply power from the backup battery;
xviii) on the sixth power management pattern, cut off power supply from the backup battery, display power exhaustion of the main battery as well as the backup battery while the power is enough for restarting the vehicle;
xix) on the seventh power management pattern, cut off power supply from the main battery as well as the backup battery, display/alarm abnormal status or short circuit of vehicle electric appliances and take measures for protection of the batteries and the vehicle.
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Abstract
An electric source noise pattern analysis method for vehicle battery protection and power management and device thereof provides ignition status recognized against battery discharge due to electric equipment requirement. Such battery discharge includes normal use of electric appliances and inadvertent use of electric devices. This invention is connected in parallel with the main battery and backup battery of a vehicle. Featuring the addition of a source characteristic sensing unit which analyzes voltages, currents, power noises of main battery and backup battery, and a pattern analysis method which utilizes the sensing characteristics to recognize the running and power used situation of vehicle, and a power management and control unit which employs at least one adjustment timer to manage main battery and backup battery relied on the vehicle situation. The device which operates to connect and disconnect the main and the backup battery from the load based on a sophisticated management algorithm to control to prevent from power exhausted by electric appliances, and the inhibit is concerned in safety of restarting failure in duration the engine shut down or switch off.
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Citations
17 Claims
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1. A method for vehicle battery protection with battery power source noise pattern analysis comprising the steps of:
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i) getting power source signal from positive and negative poles of a main battery and a backup battery of vehicles;
ii) measuring voltage of the main battery at a specific sampling time;
iii) measuring current of the backup battery at a specific sampling time;
iv) measuring voltage of the backup battery at a specific sampling time;
v) measuring voltage noise of a vehicle generator at a specific sampling time;
vi) enter a first power management pattern when detected voltage values of successive sampling signals of the main battery in a certain interval are higher than the third voltage;
vii) enter a second power management pattern when detected voltage values of successive sampling signals of the main battery in a certain interval are lower than the first voltage;
viii) enter a seventh power management pattern when detected current values of successive sampling signals in a certain interval are higher than the limited current, wherein, the successive sampling time in a certain interval ranging from 5 to 8, or equivalent with sampling time;
ix) when the detected battery voltage values of successive sampling signals in a certain interval are lower than the third voltage and higher than the second voltage, and the power source noise variation matches noise pattern that the generator charges the batteries, it is learned that the vehicle is turned on normally and the generator charges the main battery as well as the backup battery so that a third power management pattern is taken;
wherein the successive sampling times of the main battery in a certain interval ranging from 4 to 9, or equivalent with sampling time, and the successive sampling times of the noise in a certain interval ranging from 6 to 10, or equivalent with sampling time;
x) when the detected battery voltage values of successive sampling signals in a certain interval are lower than the second voltage and the voltage noise variation doesn'"'"'t match noise pattern that the generator charges the batteries, it is leaned that the engine is off and stops charging the batteries while other electric appliances still consume power, and a fourth power management pattern is taken;
wherein the successive sampling times of the main battery in a certain interval ranging from 4 to 9, or equivalent with sampling time, and the successive sampling times of the noise in a certain interval ranging from 6 to 10, or equivalent with sampling time;
xi) under the fourth power management pattern, when the preset timing of a variable timer is up, take the fifth power management pattern;
wherein the time of the variable timer is set from 0 minutes to the defined hours and the switches are turned on at predetermined interval;
xii) when the detected battery voltage values of successive sampling signals in a certain interval are lower than the first voltage and the power source noise variation doesn'"'"'t match noise pattern that the generator charges the batteries, it is leaned that the engine is off and stops charging the batteries while other electric appliances still consume power so that the main battery power is lowered to safe limit, and a sixth power management pattern is taken;
wherein the successive sampling times of the main battery in a certain interval ranging from 4 to 9, or equivalent with sampling time, and the successive sampling times of the noise in a certain interval ranging from 6 to 10, or equivalent with sampling time;
xiii) on the first power management pattern, cut off and stop charging the main battery as well as the backup battery, and display that the batteries are full charged;
xiv) on the second power management pattern, take alarming and display that the battery voltage is low;
xv) on the third power management pattern, connect and charge the main battery as well as the backup battery, and display charging status;
xvi) on the fourth power management pattern, display power exhaustion of the main battery, and supply power from the backup battery;
xvii)on the fifth power management pattern, cut off power supply from the main battery when the preset time is up, display power exhaustion of the main battery, and supply power from the backup battery;
xviii) on the sixth power management pattern, cut off power supply from the backup battery, display power exhaustion of the main battery as well as the backup battery while the power is enough for restarting the vehicle;
xix) on the seventh power management pattern, cut off power supply from the main battery as well as the backup battery, display/alarm abnormal status or short circuit of vehicle electric appliances and take measures for protection of the batteries and the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11)
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9. A device, said battery protector 3, for vehicle battery protection with battery power source noise pattern analysis, connected with a battery or a plurality of connected battery sets of vehicles with engines and generators in parallel, comprising a source characteristic sensing unit 32 for detecting source features of the battery sets;
- a source characteristic receive and measure unit 33 for analyzing power features output by the battery sets ; and
an actuator unit 34 for managing and controlling output and switching of the battery sets;
whereinthe source characteristic sensing unit 32 having one or a plurality sets of sampling time circuit 321 that sets one or a plurality sets of sampling time for sampling, one or a plurality sets of voltage receive and measure circuit 322 that receives sampled voltage and converts the value of the voltage, one or a plurality sets of current receive and measure circuit 323 that receives sampled current and converts the value of the current, and one or a plurality sets of noise receive and measure circuit 324 for receiving sampled noise and converting the value of the noise;
the source characteristic receive and measure unit 33 having a frequency analyzer 331 that compare and analyze the signals of voltage, current and noise for checking whether the vehicle generator is on or off and prevent interference from other electric appliances being used or not;
a pattern igniter 332 that receives results from the frequency analyzer 331 and outputs signals with various pattern characteristics;
a power management 333 that receives signals with various pattern characteristics, takes power management measure such as cut off, connect, or reverse the batteries and generate signals for management;
the actuator unit 34 having a variable timer circuit 341 that sets different time from outside by combinations of switches and generates clocking signal, an output controller 342 that receives signals from the variable timer circuit 341 and checks signals from the power management 333 for output control signals of power cutoff or connection; and
one or a plurality sets of source cutoff and connection circuit 343 that receives control signals from the output controller 342 so as to cut off or connect power from one or a plurality of batteries. - View Dependent Claims (12, 13, 14, 15, 16, 17)
- a source characteristic receive and measure unit 33 for analyzing power features output by the battery sets ; and
Specification