Battery pack energy management method, device and electric vehicle
An energy management and battery pack technology, which is applied in the fields of electric vehicle control, device, and battery pack energy management method, can solve the problems of incapable power output performance and long driving range, and achieve the effect of reducing power consumption and improving cruising range.
Active Publication Date: 2019-11-29
奇瑞新能源汽车股份有限公司
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[0005] In order to solve the problem that the electric vehicles in the prior art cannot take into account the good power output performance and long driving mileage of the vehicle during driving, the embodiment of the present application provides a battery pack energy management method, device and electric vehicle
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[0060] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0061] For ease of understanding, explanations of some nouns involved in the embodiments of the present application are listed below.
[0062] Vehicles running on electric energy: refers to vehicles running on electric energy as the driving force. For example, the vehicle running on electric energy may be a pure electric vehicle, a fuel cell electric vehicle, or a gasoline-electric hybrid vehicle. Wherein, electrical energy is provided by the rechargeable battery pack located in this vehicle. For the convenience of description, in the embodiment of the present application, pure electric vehicles are taken as an example for schematic illustration, which does not limit the present application.
[0063] Power output component: refers to...
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The embodiment of the application discloses a battery pack energy management method, and belongs to the novel energy vehicle control field; the method comprises the following steps: monitoring the battery pack remaining capacity of the vehicle; when the remaining capacity is bigger than a preset first electric quantity threshold, controlling the battery pack electric energy output according to a power output response relationship in a first control parameter set; when the remaining capacity is not bigger than the first electric quantity threshold and bigger than a second electric quantity threshold, controlling the battery pack electric energy output according to a power output response relationship in a second control parameter set. The power output response relationship is used for indicating the corresponding relation between the power output operation and the battery pack electric power; with respect to the same power output operation, the electric power corresponding to the first control parameter set is bigger than that corresponding to the second control parameter set. When the battery pack is low in energy, the method can limit the vehicle power output, thus reducing battery pack energy consumption, and improving the vehicle endurance mileage.
Description
technical field [0001] The embodiments of the present application relate to the technical field of electric vehicle control, and in particular, to a battery pack energy management method and device, and an electric vehicle. Background technique [0002] In the automotive industry, electric vehicles are driven by the electric energy stored in the battery pack. After the battery pack of the vehicle has been packaged, how to improve the cruising range of the electric vehicle by managing the energy of the battery pack is of great help to the expansion of the electric vehicle. Usage scenarios are important. [0003] In the related art, the maximum stroke of the electronic accelerator of the electric vehicle may correspond to the maximum output power of the driving motor. When the maximum stroke of the electronic accelerator corresponds to the maximum output power of the driving motor, although the power output performance of the vehicle is good, if the driver frequently accelera...
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IPC IPC(8): B60L58/10B60L3/00
CPCB60L3/00B60L58/10Y02T10/70
Inventor 王新树汪跃中王金桥倪绍勇肖小城张飞
Owner 奇瑞新能源汽车股份有限公司