Automotive Repairing Solutions

Industry Development Background and Testing Needs

With the rapid evolution of the automotive industry towards electrification and intelligence, higher standards have been proposed for electrical safety, performance reliability, and process quality control in the manufacturing of complete vehicles and components. From traditional fuel vehicles to pure electric, plug-in hybrid, and fuel cell models, the research and development, production line testing, offline verification, and quality inspection of key components such as the three electric system, high-voltage components, motor and electronic control, vehicle air conditioning, and wiring harness assembly all require professional and complete testing and measurement methods as support.

We provide one-stop testing and measurement products and comprehensive solutions for the entire business chain of automobile manufacturing, three electrical component production, assembly assembly, offline testing, quality laboratory, and after-sales repair training. We cover core application scenarios such as incoming component inspection, production process testing, overall performance verification, safety insulation testing, temperature and heat source troubleshooting, electrical parameter collection, and fault location analysis. We help manufacturing enterprises control product safety risks, improve production testing efficiency, and ensure stable and reliable quality of finished vehicles.

Vehicle air conditioning and hybrid engine malfunction section

Car air conditioning and hybrid engine faults: Air conditioning faults are mainly manifested as no cooling and poor

cooling effect. Fault codes can be read, and a multimeter can be used to check the electrical circuit. A 2-in-1 thermometer

can be used to detect the temperature of the evaporator and condenser pipelines, and to determine whether the pipelines

are blocked or the components are abnormal; The engine of hybrid models has carbon deposits, which can be detected using

an industrial endoscope for non-destructive inspection. The internal carbon deposits and wear can be checked without

disassembling the engine, and maintenance can be carried out in advance.

Power battery system malfunction:

Covering three types of faults: single battery, BMS battery management system, and line connectors, manifested as abnormal internal

resistance, overcharging and overdischarging, failure of voltage and temperature collection, and false connection and open circuit of

wiring, directly causing insufficient power, reduced range, and inability to start the entire vehicle. Evaluate the degree of degradation of

individual batteries through a battery internal resistance tester, inspect the BMS acquisition module with a multimeter, check the

continuity of wiring harnesses and fuses, and replace faulty cells and damaged connectors.

Matrix of new energy vehicle maintenance and testing instruments

We provide a portable instrument combination that covers electrical measurement, insulation testing, battery analysis, temperature diagnosis, mechanical testing, and visual inspection for the testing needs of high-voltage safety, power batteries, drive motors, air conditioning systems, and hybrid engines in new energy vehicles. This helps maintenance shops, 4S stores, testing centers, and vocational colleges improve fault diagnosis efficiency and reduce maintenance risks.

The core instruments include:

Digital multimeter:

used for basic electrical measurements such as voltage, resistance, on-off, frequency, etc., assisting in power-off verification, sensor circuit detection, and BMS module maintenance.

• Insulation resistance tester:

used for ground insulation testing of high-voltage distribution boxes, motor controllers, drive motors, charging interfaces and other components, to determine insulation aging, water ingress and leakage risks.

• Battery internal resistance tester:

used for measuring the internal resistance and voltage of power battery cells, evaluating the degree of battery degradation, and screening for abnormal cells.

• Clamp meter/leakage current meter:

used for detecting the three-phase current of the driving motor, the current of the onboard control circuit, and the hidden leakage current of the vehicle.

• Infrared thermal imaging device:

used for temperature rise detection of drive motors, battery packs, high-voltage wiring harnesses, and connectors, quickly locating abnormal hotspots.

• Vibration meter:

used for vibration detection of drive motor bearings, rotors, and mechanical components, assisting in determining wear, imbalance, and assembly abnormalities.

• 2-in-1 thermometer:

used for detecting the temperature of air conditioning evaporators, condensers, pipelines, and chambers, assisting in the determination of refrigeration system blockages and heat exchange abnormalities.

• Industrial endoscope:

used for inspecting carbon deposits, wear, cracks, and assembly defects inside engines, achieving non-destructive visual testing.