Unlock instant, AI-driven research and patent intelligence for your innovation.

Apparatus and method for guaranteeing low-voltage battery failure startup of new energy vehicles

A low-voltage battery, new energy vehicle technology, applied in electrical devices, electric vehicles, vehicle parts, etc., can solve the problems of driver trouble, the whole vehicle cannot be started, low voltage battery voltage, etc., and achieve the effect of good technical support

Active Publication Date: 2018-12-14
合肥一辂汽车科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While paying attention to battery life, quality assurance, price and convenient charging, low-voltage starting batteries have not received widespread attention. In many cases, the vehicle cannot be started due to low-voltage battery failure, which brings great troubles to many drivers.
[0003] On most new energy vehicles, when the vehicle is parked for a long time or some electrical appliances work for a long time and the low-voltage battery feeds power, when the ignition is started again, the voltage of the low-voltage battery will be too low, and the low-voltage system of the vehicle cannot When the power is turned on, the vehicle's battery management system, DC-DC, vehicle controller, and high-voltage box cannot work, and the vehicle cannot drive.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Apparatus and method for guaranteeing low-voltage battery failure startup of new energy vehicles
  • Apparatus and method for guaranteeing low-voltage battery failure startup of new energy vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown in the figure, the device used to ensure the low-voltage battery 6 of the new energy vehicle fails to start, includes a data acquisition module 4 for collecting the ignition switch ACC signal and the positive signal of the low-voltage new battery, a DC-DC module 5, a low-voltage battery 6, and a modified circuit. The DC-DC module 5 includes a high-voltage positive input terminal, a high-voltage negative input terminal, an enabling terminal 61, a starting power supply terminal 62, a positive output terminal and a negative output terminal connected to the positive and negative poles of the low-voltage storage battery 6, and the reformed circuit includes the first A relay J1, a second relay J2, a third relay J3, a transformer module 32, a power module 33, and a logic judgment module 31;

[0033] The logic control module includes a control terminal for respectively controlling whether the coils of the first relay J1, the second relay J2, and the th...

Embodiment 2

[0040] Such as figure 2 As shown, the method for using the device described in Embodiment 1 for ensuring the start-up of a low-voltage storage battery of a new energy vehicle comprises the following steps:

[0041] S1. After the ignition switch of the new energy vehicle is turned to the ACC gear, the car starts to work, and the data acquisition module 4 collects the voltage value of the vehicle-mounted low-voltage battery 6 and the ACC signal of the ignition switch. When the battery voltage is between 3V and 9V, it enters the Step S2, when the detected voltage is not less than 13V, go to step S3, and when the detected voltage is less than 3V, go to step S4;

[0042] S2. At this time, the device determines that there is a fault in the low-voltage battery 6, and the logic judgment module 31 sends out a control signal to control the normally open node of the first relay J1 to pull in, and the positive pole voltage of the power battery pack 1 is loaded on the transformer, and the...

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

PUM

No PUM Login to View More

Abstract

The invention discloses a device and a method for guaranteeing the low-voltage battery fault start of a new energy vehicle. The device comprises a data acquisition module, a DC-DC module, a low-voltage battery, a modified circuit; The reformed circuit comprises a first relay J1, a second relay J2, a third relay J3, a transformer module, a power supply module and a logic judging module-. The logiccontrol module controls the coils of the first relay J1, the second relay J2, and the third relay J3, respectively. The positive pole of the power battery pack passes through the normally open node ofthe first relay J1 - and the normally open node of the second relay J2 and is connected to the high voltage positive input terminal of the DC module; and the negative pole is connected with the high-voltage negative input terminal of the DC-DC module andthe negative input terminal of the transformer module through the normally open node of the third relay J3 respectively. , and the connection point of the first relay J1 and the second relay J2 is connected to the positive input terminal of the transformer module. The invention realizes the normal power-up of the whole vehicle when the low-voltage battery fails, and provides better technical guarantee for the safe travel of the new energy vehicle.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a device and a method for ensuring the start-up of a low-voltage storage battery of a new energy vehicle. Background technique [0002] At present, with continuous breakthroughs in battery pack technology, cell material technology and battery management technology, new energy vehicles have become increasingly mature in battery life and safety management, and their concept of environmental protection and green travel has attracted more and more people to Accepted, the reaction of the market also indirectly verified this point. While paying attention to battery life, quality assurance, price and convenient charging, low-voltage starting batteries have not received widespread attention. In many cases, the vehicle cannot be started due to low-voltage battery failure, which brings great troubles to many drivers. . [0003] On most new energy vehicles, when the vehicle is parked fo...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00
CPCB60L3/0046
Inventor 张志林
Owner 合肥一辂汽车科技有限公司