Vehicle battery power control method and device

A technology of battery power and control method, applied in battery/fuel cell control device, control device, control drive, etc., can solve the problem of reducing the power performance of the whole vehicle, not considering the 10s charging and discharging power of the battery, and only considering the 30s charging and discharging power, etc. problem, to achieve the effect of improving dynamic performance and increasing usable power

CN110857036AActive Publication Date: 2020-03-03GREAT WALL MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-03-03

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Abstract

The invention relates to the field of vehicle control, and provides a vehicle battery power control method and device. The vehicle battery power control method comprises the steps of detecting the actual demand power of a vehicle and the duration of the actual demand power; and according to the actual demand power, the first battery charge and discharge power, the second battery charge and discharge power and / or duration of the actual demand power, controlling the output power of a battery, wherein the first battery charge and discharge power is smaller than the second battery charge and discharge power. By means of the vehicle battery power control method and device, the higher charge and discharge power can be used for power distribution, the usable power of the entire vehicle is improved, and the dynamic performance is improved without causing overcharge and overdischarge of the power.
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Description

Technical field

[0001] The present invention relates to the technical field of vehicle control, in particular to a method and device for controlling battery power of a vehicle. Background technique

[0002] For new energy vehicles, the power battery system, as the power source of the whole vehicle, has the function of providing the power source for the power system. Due to the characteristics of the battery, the battery is passively charged and discharged in the power system, that is, its own charging and discharging power cannot be controlled, and the battery management system can only issue the battery’s own charging and discharging capacity, and other controllers will limit the capacity in advance through the battery. The power output of the battery. At present, the battery sends its own charging and discharging power capabilities through CAN for power distribution to the vehicle control system. Because the battery charging and discharging ability has the characteristics of ...

Examples

Embodiment Construction

[0034] It should be noted that the embodiments of the present invention and the characteristics of the embodiments can be combined with each other if there is no conflict.

[0035] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0036] figure 1 It is a flowchart of a method for controlling battery power of a vehicle provided by an embodiment of the present invention. Such as figure 1 As shown, the battery power control method of the vehicle includes:

[0037] Step S11, detecting the actual required power of the vehicle and the duration of the actual required power;

[0038] Step S12, controlling the output power of the battery according to the actual required power, the first battery charging and discharging power, the second battery charging and discharging power, and / or the duration of the actual required power, wherein the first battery is charged and discharged The discharge power is less tha...