A method for detecting relay adhesion
A detection method and relay technology, applied in the direction of circuit breaker testing, instrumentation, measuring electricity, etc., can solve the problems of high current and easy burnout of circuit components, reduce damage, reduce error generation channels, and ensure safety Effect
Active Publication Date: 2020-01-31
力高(山东)新能源技术股份有限公司
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The traditional relay adhesion detection method needs to pull the total negative first before checking the fault. Directly closing the total negative relay will generate a large current, which will cause the components in the circuit to be easily burned out
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0036] figure 1 As the high-voltage circuit of new energy vehicles, the kinetic energy is provided by the power battery. The power battery pack is connected in series to form the power source of the high-voltage vehicle. The battery management system controls the power battery to drive various load devices by indirectly driving the high-voltage relay. figure 1 B1- in it is the negative pole of the power battery pack, and it is also the reference ground for 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
Login to View More Abstract
The invention relates to a method for detecting relay adhesion in new energy vehicles, in particular to a method for detecting relay adhesion. The present invention realizes the voltage detection at the common point of the charging relay and the charging equipment, the voltage detection at the common point of the total negative relay and the load, the voltage detection at the common point of the heating relay and the heating wire, the total positive The voltage detection at the common point of the charging relay and the motor, the voltage detection at the common point of the total negative relay and the load, and then combined with the set voltage value to judge the relay adhesion of the power battery pack during the charging process and to judge the power battery pack during the discharge process. Therefore, the present invention can confirm in advance whether all the high-voltage relays in the high-voltage circuit where the power battery pack is located are in a normal working state, avoiding the uncontrolled charging and discharging process caused by the adhesion of the relays, thereby reducing the impact on power Damage to battery packs and external loads.
Description
technical field [0001] The invention relates to a method for detecting relay adhesion in new energy vehicles, in particular to a method for detecting relay adhesion. Background technique [0002] In the new energy vehicle industry, the power battery voltage of electric vehicles is often 60V ~ 800V. Due to the electromagnetic induction of the coil, a momentary high potential will be generated in the coil, and it and the power supply voltage will be superimposed on both ends of the contacts of the high-voltage relay, which is the electrical component of the protection circuit, resulting in arcing and adhesion. [0003] The traditional relay adhesion detection method needs to close the total negative first before checking the fault. Directly closing the total negative relay will generate a large current, which will easily cause the components in the circuit to be burned out. Contents of the invention [0004] In order to overcome the disadvantages of the above-mentioned prio...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
CPCG01R31/3275
Inventor 王飞飞
Owner 力高(山东)新能源技术股份有限公司