Charging Efficiency Detection Method
A charging efficiency and detection method technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve problems such as battery deformation, large size, and aging effects of rechargeable batteries
Active Publication Date: 2018-04-20
成都芯软科技股份公司
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Problems solved by technology
At present, the charging module used in the electric vehicle charging equipment generally adopts pulse width modulation, its circuit is complicated, the size is large, and it is difficult to integrate the battery monitoring function into the charging module. Therefore, the above charging module only has the charging function and does not realize the The battery monitoring function is often equipped with a battery inspection system to monitor the battery
The charging process will cause the battery to heat up. With the extension of the battery life cycle, the battery may be deformed to a certain extent during the charging process. Even if the nominal life is not reached, the charging temperature may be caused by factors such as weather, charging conditions, and improper operation. Even if these situations do not occur, improper charging or improper maintenance and use will have an aging effect on the rechargeable battery of an electric vehicle over time, reducing its charging efficiency
Method used
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[0029] Such as figure 1 As shown, the charging efficiency detection method of the present invention comprises the following steps:
[0030] (1) Retrieve historical information on vehicle charging efficiency;
[0031] Specifically, this step includes:
[0032] Set up an electric vehicle charging equipment information recording device, which stores the corresponding charging records for each charge: the electric vehicle charging equipment information recording device has an input interface, an output interface and a memory, and the input interface and the output interface are physically in the form of a USB interface. Or it can be realized by bluetooth interface, and the memory adopts flash memory.
[0033] Establish a communication connection with the information recording equipment of the electric vehicle charging equipment, and obtain the first charging history record curve of the electric vehicle to be charged in the past stored in the charging information recording equipm...
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In order to provide the driver with accurate and timely charging status of the electric vehicle, the present invention provides a charging efficiency detection method, comprising the following steps: (1) retrieving the historical information of the charging efficiency of the vehicle; (2) collecting the current charging efficiency information of the vehicle; 3) Calculate the actual charging efficiency according to the historical charging efficiency information and current charging efficiency information. The present invention can provide battery charging information to the driver in a manner different from that of the electric vehicle battery management system, comprehensively consider the charging state of the battery during this charging and whether it is normal for information such as the charging history of the battery, the driving status of the car, and whether it is normal during the charging process. It provides drivers with reliable charging efficiency status information and even early warning information.
Description
technical field [0001] The invention relates to the technical field of charge and discharge detection, and more specifically, to a detection method capable of judging the charging efficiency of a rechargeable battery of an electric vehicle through a charging process. Background technique [0002] Electric vehicles have become an emerging product in the automotive industry, and the supporting electric vehicle charging equipment has gradually been established. At present, the charging module used in the electric vehicle charging equipment generally adopts pulse width modulation, its circuit is complicated, the size is large, and it is difficult to integrate the battery monitoring function into the charging module. The battery monitoring function is often equipped with a battery inspection system to monitor the battery. The charging process will cause the battery to heat up. With the extension of the battery life cycle, the battery may be deformed to a certain extent during th...
Claims
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IPC IPC(8): G01R31/36
Inventor 葛辉
Owner 成都芯软科技股份公司