Vehicular charging system for electric automobile, and charging control method thereof
A technology for electric vehicles and on-board charging, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problem of not considering braking energy recovery and charging, to extend the cruising range of a single charge, reduce costs, and be practical effect of value
Inactive Publication Date: 2013-07-24
HUNAN UNIV
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Problems solved by technology
Moreover, most of the current electric vehicle on-board charging systems only consider the external charging power supply energy, and do not consider the recovery and charging of braking energy.
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[0029] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0030] Reference attached figure 1 with figure 2 As shown, a vehicle-mounted charging system for electric vehicles described in the present invention includes a vehicle-mounted battery 1, a drive motor 2, a drive protection circuit module 3, a bidirectional DC / DC converter module 4, a rectifier filter circuit module 5, and a central controller 6. , Feedback signal acquisition module 7, battery discharge device 8, and charge selection switch module.
[0031] figure 1 It is a system connection diagram and an energy flow diagram of the present invention. The two-way DC / DC converter module 4 is respectively connected to the on-board battery 1, the drive motor 2, the rectifier filter circuit module 5, and is used to connect the rectifier filter circuit module 5 The grid energy input by the converted external power supply and the braking energy of the drive mo...
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The invention discloses a vehicular charging system for an electric automobile, and a charging control method of the vehicular charging system. The vehicular charging system comprises a vehicular storage battery, a driving motor and a rectifying and filtering circuit module and is characterized by further comprising a bidirectional DC / DC (Direct Current to Direct Current) converter module, wherein the bidirectional DC / DC converter module is connected with the vehicular storage battery, the driving motor and the rectifying and filtering circuit module respectively and is used for realizing the bidirectional flowing of charging and discharging energies, a feedback signal acquisition module is used for transmitting monitored data, related to battery / external power supply connection and braking energy generation, to a central controller, and the central controller carries out analysis and comparison on the data and then controls the work of the bidirectional DC / DC converter module and that of a charge selection switch module through a drive protection circuit module so as to complete a vehicular storage battery charging process. The vehicular charging system for the electric automobile and the charging control method of the vehicular charging system have the advantages that the whole vehicular charging system is miniaturized and intellectualized, the current requirements of the electric automobile on charging manner diversification are met, and the once-charged endurance mileage of the electric automobile is prolonged.
Description
Technical field [0001] The present invention relates to the technical field of energy supply for electric vehicles on-board batteries, in particular to an electric vehicle on-board charging system and a charging control method thereof. Background technique [0002] With the increasingly prominent energy and environmental issues, new energy vehicles have ushered in unprecedented development opportunities, and electric vehicles are a very ideal daily public transportation tool. The application of electric vehicles effectively solves the two major problems of energy and environment. After the large-scale promotion and application of electric vehicles, there are technical requirements for charging the battery modules in the battery pack, because the on-board charging system greatly affects the operating quality of electric vehicles. At present, the on-board charging system of electric vehicles is heavy, bulky, and takes a long time to charge, and it does not match the operation of th...
Claims
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Login to View More IPC IPC(8): H02J7/00H02J7/02
Inventor 邓元望朱浩文滨周帅
Owner HUNAN UNIV