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Energy management equipment, electric control system and electric control method, electric vehicle

An energy management and electronic control system technology, applied in the electronic field, can solve the problems of insufficient BMS balance capability, high battery consistency requirements, and difficult battery replacement, and achieve the effects of avoiding high detection costs, light weight, and easy heat dissipation

Active Publication Date: 2018-05-04
北京友信宏科电子科技股份有限公司
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Problems solved by technology

[0010] Embodiments of the present invention provide an energy management device, an electronic control system, an electronic control method, and an electric vehicle to solve the problems of high battery consistency requirements, high testing costs, and battery It is difficult to replace, and the BMS equalization ability is not enough to meet the technical problems of dynamic voltage equalization of large-scale series-connected battery packs

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  • Energy management equipment, electric control system and electric control method, electric vehicle
  • Energy management equipment, electric control system and electric control method, electric vehicle
  • Energy management equipment, electric control system and electric control method, electric vehicle

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Embodiment Construction

[0070] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0071] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0072] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0073] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

An embodiment of the invention discloses energy management equipment, an electronic control system, an electronic control method and an electric vehicle. The energy management equipment comprises an H-bridge unit, a battery pack serving as an input power source of the H-bridge unit and a BMS (battery management system) for performing energy balance control on the battery pack, wherein the electronic control system comprises a master controller, 3N sub-controllers and 3N sets of energy management equipment; the 3N sets of energy management equipment constitute a first face group, a second face group and a third face group; each faces group comprises N sets of energy management equipment, the master controller calculates the PWM (pulse-width modulation) duty cycle of each set of energy management equipment, and the sub-controllers control connection of corresponding energy management equipment according to the PWM duty cycles. The embodiment of the invention solves the technical problems of high battery consistency requirement, high detection cost, battery replacement difficulty and poor balance ability of the BMS due to large-scale series connection of batteries in the battery pack of the conventional electric vehicle, so that dynamic voltage equalization after large-scale series connection of the battery pack is realized.

Description

technical field [0001] The invention relates to electronic technology, in particular to an energy management device, an electric control system and an electric control method, and an electric vehicle. Background technique [0002] An electric vehicle refers to a vehicle powered by a vehicle-mounted power supply, driven by a motor to drive the wheels, and conforming to the requirements of road traffic and safety regulations. Since electric vehicles use the electric energy stored in the battery to start, compared with traditional fuel vehicles, they have less impact on the environment, and the prospects of electric vehicles are widely optimistic. [0003] Power battery is the key technology of electric vehicles, which determines its mileage and cost. Because the voltage of the battery cell is not high, for example, the voltage of the lithium iron phosphate battery is usually 3.2V-3.3V, and the voltage of the ternary material lithium battery is usually 3.6V, which requires a l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/04H01M10/42
CPCY02E60/10
Inventor 许烈
Owner 北京友信宏科电子科技股份有限公司
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