Charge control method and system for low-voltage storage battery of electric automobile, and vehicle control unit

A low-voltage battery and vehicle controller technology, which is applied in the field of vehicle controller and low-voltage battery charging control of electric vehicles, can solve problems such as low energy conversion efficiency, elevated working temperature, and battery damage, and improve energy utilization. , the effect of prolonging the service life
CN106004446AActive Publication Date: 2016-10-12BEIJING HYUNDAI
9 Cites 37 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING HYUNDAI
Publication Date
2016-10-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a charge control method and system for a low-voltage storage battery of an electric automobile, and a vehicle control unit and relates to the technical field of electric automobile vehicle control. The charge control method comprises the steps that after the electric automobile is started, the vehicle control unit controls a DC / DC convertor to start, and the low-voltage storage battery is precharged; after the low-voltage storage battery is precharged, the vehicle control unit controls the DC / DC convertor to stop, and voltage of the low-voltage storage battery is monitored; the vehicle control unit determines the battery state of the low-voltage storage battery according to the monitored voltage of the low-voltage storage battery; and according to the battery state of the low-voltage storage battery and / or the current operating state of the electric automobile, the DC / DC convertor is controlled to start or stop, and intermittent charge for the low-voltage storage battery is achieved. Through charge control over the low-voltage storage battery, the energy utilization ratio of the electric automobile is increased, and the service life of the low-voltage storage battery is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of electric vehicle vehicle control, in particular to a charging control method, system and vehicle controller for a low-voltage storage battery of an electric vehicle. Background technique

[0002] At present, environmental protection and energy issues are getting more and more attention. In order to cope with the environmental and energy crisis, the development and large-scale use of electric vehicles has become an inevitable trend. In the process of improving the performance of electric vehicles and gradually moving towards industrialization, it is necessary to reduce low-voltage power consumption The energy consumption of electrical accessories and the improvement of the energy utilization efficiency of the whole vehicle are important topics in the research of electric vehicles.

[0003] Compared with traditional fuel vehicles, the gasoline engine is replaced by a drive motor; the fuel system is replaced...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More