Method and device for controlling charging current
A technology of charging current and control method, which is applied in battery circuit devices, circuit devices, transportation and packaging, etc., and can solve problems such as large charging current, impact on battery safety and lifespan, etc.
Active Publication Date: 2018-06-26
WUHU LION AUTOMOTIVE TECH CO LTD
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[0005] In order to solve the problem in the related art that the charging current may be too large when the maximum regenerative braking force is used for braking, and the excessive charging current will affect the safety and life of the battery in the car, the embodiment of the present invention provides a charging current Control method and device
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[0057] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0058] figure 1 It is a flow chart showing a charging current control method according to an embodiment of the present invention, and the charging current control method can be used to control the charging current of a vehicle. The control of the charging current may include the following steps:
[0059] In step 101, at least two braking control parameters are obtained, and the braking control...
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The invention relates to a charging current control method and device, belonging to the field of new energy vehicles. The method includes: acquiring at least two braking control parameters; determining the level of each braking control parameter of the at least two braking control parameters to obtain a level combination; according to the corresponding relationship between the preset level combination and the control coefficient, obtaining the corresponding relationship between the level combination The control coefficient; determine the target charging current according to the current charging current and the control coefficient. The present invention determines the control coefficient of the charging current of the power battery according to the level combination relationship of at least two braking control parameters, and adjusts the current charging current according to the control coefficient, and solves the problem of using the maximum regenerative braking force for braking in the related art. When the charging current may be too large, and the charging current is too large to affect the safety and life of the battery in the car; the effect of being able to adjust the charging current according to the braking control parameters is achieved.
Description
technical field [0001] The invention relates to the field of new energy vehicles, in particular to a charging current control method and device. Background technique [0002] Regenerative braking, also known as feedback braking, is a braking technology used in electric vehicles. When the vehicle is braking, the kinetic energy of the vehicle is converted into electrical energy and stored. As a key energy-saving and environmental protection technology of new energy vehicles, regenerative braking technology has attracted more and more attention in the field of vehicle research and development. [0003] In the related art, there is a charging current control method. In this method, when the vehicle is braking, the maximum regenerative braking force is usually used for braking. When the maximum regenerative braking force is used for braking, the maximum charging current can be obtained (the charging current is regenerative braking dynamic recovery current), which can improve th...
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IPC IPC(8): B60L7/10H02J7/00
Inventor 高红博方啸周倪青王慧茹陈效华
Owner WUHU LION AUTOMOTIVE TECH CO LTD