Electric automobile charging power control method and device
An electric vehicle, charging power technology, applied in electric vehicle charging technology, battery/fuel cell control devices, electric vehicles, etc., can solve the problem of low charging efficiency, reduce electromagnetic interference, low cost, and be conducive to commercialization. Effect
Inactive Publication Date: 2018-05-01
NANJING XIAOZHUANG UNIV
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[0003] Purpose of the invention: Aiming at the problem of low charging efficiency of existing electric vehicles, the present invention provides a charging power control method and control device for electric vehicles. Using the control method, the optimal charging power can be controlled according to the state parameters of the battery. Enables efficient and fast charging
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[0025] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0026] like figure 1 As shown, it is a structural diagram of the electric vehicle charging power control device disclosed in the present invention, including a data acquisition device located on the electric vehicle side and a calculation control device located on the charging pile side; wherein the data acquisition device includes a detection sensor 1, a temperature sensor 2, a signal Acquisition module 3 and wireless transmitter 4; The detection sensor 1 is installed on the power port of the electric vehicle power battery, and collects the SOC (State Of Charge, remaining power) signal of the power battery; the temperature sensor 2 is installed inside the power battery, and collects the battery Internal temperature value, detection sensor 1 and temperature sensor 2 are all connected with signal acquisition module 3, and described signal acquis...
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The invention discloses an electric automobile charging power control method and device. The electric automobile charging power control method comprises the following steps that (1) a battery capacityCap of a an electric automobile power battery is obtained; (2) a residual capacity SOC and a battery temperature T of the electric automobile power battery in the charging process are collected; (3)the battery capacity Cap, the residual capacity SOC and the battery temperature T serve as input nodes so that an RBF neural network with the output node number being one can be built, and the RBF neural network is trained according to P sets of input samples; and (4) output of the RBF neural network, namely a charging power control signal of a charging pile, is calculated. By adopting the electric automobile charging power control method, the optimum charging power can be controlled according to state parameters of the battery, and efficient and rapid charging can be achieved.
Description
technical field [0001] The invention belongs to the field of traffic control, and in particular relates to a method and a control device for controlling the charging power of an electric vehicle. Background technique [0002] With the development of economy and technology, all countries in the world are vigorously developing electric vehicles, and electric vehicles will enter a period of comprehensive development. However, with the rapid growth of electric vehicles, charging has become the most difficult problem. Due to the different materials and performance of the battery, the charging method is also different, and the charging power is also different under different remaining power or temperature conditions. After research, it is found that there is an optimal charging curve during the charging process of the battery. However, most of the current charging methods are charging with constant power or simply switching the charging power, and the charging efficiency needs t...
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IPC IPC(8): B60L11/18
CPCB60L53/60B60L58/12Y02T10/70Y02T10/7072Y02T90/12
Inventor 陆玉正颜森林
Owner NANJING XIAOZHUANG UNIV