Battery electric quantity detection circuit and electric vehicle
A technology for detecting circuits and battery power, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve the problem of large errors in battery power calculation, and achieve the effect of accurate judgment and improved accuracy
Pending Publication Date: 2021-09-03
EVE HYPERPOWER BATTERIES INC
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Problems solved by technology
[0004] The invention provides a battery power detection circuit and an electric vehicle, which solves the problem of relatively large calculation errors of the battery power in the existing electric bicycles, so as to realize accurate judgment on the battery power
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[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0026] An embodiment of the present invention provides a battery power detection circuit. figure 1 For a schematic structural diagram of a battery power detection circuit provided in an embodiment of the present invention, see figure 1 , the battery power detection circuit 100 includes: a charging and discharging port 101, a current detection module 102, an acquisition module 103 and a control module 104; charging or used to connect with the load and supply power for the load; the current detection module 102 is ...
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The invention discloses a battery electric quantity detection circuit and an electric vehicle. The circuit comprises a charging and discharging port, a current detection module, an acquisition module and a control module; the charging and discharging port is connected with the battery and is used for being connected with a charger and charging the battery or being connected with a load and supplying power to the load; the current detection module is connected between the battery and the charging and discharging port; the current detection module is used for detecting current flowing through a battery and charger loop or detecting current flowing through a battery and load loop; the acquisition module is connected with the battery and the current detection module, and is used for acquiring the voltage of the battery and the current detected by the current detection module; and the control module is in communication connection with the acquisition module and is used for judging the charge state value of the battery according to the voltage of the battery acquired by the acquisition module and the current measured by the current detection module. According to the technical scheme, the accuracy of judging the electric quantity of the battery is improved.
Description
technical field [0001] Embodiments of the present invention relate to battery testing technology, in particular to a battery power detection circuit and an electric vehicle. Background technique [0002] With the development of the battery manufacturing industry, batteries with different principles emerge in an endless stream, which brings more opportunities and challenges to the battery management system. The instrument panel of the existing electric bicycle generally displays the state of charge of the battery through a battery management system based on communication protocols such as RS485. However, the design of this battery management system is difficult and costly, and it is not suitable for the main competitiveness of the price-performance ratio. Electric bicycle industry. In order to reduce the cost and improve the cost performance, the existing electric bicycle generally does not design a communication circuit between the instrument panel and the battery, but esti...
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IPC IPC(8): G01R31/3842
CPCG01R31/3842
Inventor 曾龙贵刘金成刘建华
Owner EVE HYPERPOWER BATTERIES INC