In the past decade, the new energy vehicle industry has gone through chaos, confusion and fanaticism, and gradually entered a rational period full of passion.
More and more automobile manufacturing enterprises are actively developing new energy vehicles, and the number of new energy vehicles in China is gradually increasing, which puts forward new requirements for the maintenance of new energy vehicles in the automotive aftermarket service market.
New energy vehicle maintenance Technical points
In the face of the increasingly diversified faults of new energy vehicles, only by continuously improving the level of maintenance technology can auto repair personnel meet the maintenance requirements of new energy vehicles and improve the troubleshooting rate.
1. Do a good job of inspection before auto repair
The internal structure design of new energy vehicles is very different from that of traditional fuel vehicles, especially the circuit structure is particularly complex. Before maintenance, it is necessary to do a series of inspections, find the location and root of the fault, and clarify the direction of subsequent maintenance work. New energy vehicle charging pile
When the new energy vehicle is at a standstill, check the vacuum pump and controller, step on the pedal, and carefully observe the operation of the vacuum pump and whether the control unit works normally.
Check the tightness of the vacuum pipeline, and focus on observing whether there is damage, aging, air leakage, oil leakage and other phenomena at the place where the pipeline is connected, so as to ensure that there is a sufficient safety distance between the hose and the body parts.
Carefully check the circuit inside the vehicle to make sure whether there is aging, adhesion, damage, wiring cracking and other phenomena in the circuit. Once problems are found, power must be cut off before handling to prevent more serious faults.
2. Maintenance Technology of Hybrid Vehicle
The common small faults of hybrid electric vehicles mainly include ignition system fault, oil circuit system fault and circuit fault. Battery failure, failure to discharge fire and abnormal operation of generator are common large failures. Small failures are almost consistent with traditional vehicle maintenance technology, and the maintenance of large failures is the key. Electric vehicle charging pile
When the oil electric hybrid vehicle cannot be started normally, the starter and generator shall be checked for damage, aging or loose plug, and the technology used shall be determined according to the actual situation during maintenance.
Use the battery detection technology to check whether the battery of the hybrid electric vehicle has oxidation, power loss, loose joints, etc. If there is any, the oxide of the battery must be cleaned in time, and the battery must be charged or replaced in time.
3. Maintenance technology of pure electric vehicle
Pure electric vehicle is the development trend of new energy vehicles. It is mainly used to supplement power for the vehicle through household slow charging or DC pile fast charging. The battery is the power source of the vehicle and the focus of maintenance. When repairing battery of pure electric vehicle, it is necessary to prevent battery power loss due to long storage time.
Using periodic detection technology to repair batteries, if the endurance of pure electric vehicles is weakened during the use process, it is most likely because of the batteries. Regular inspection must be carried out to ensure the normal use of batteries. New energy vehicle maintenance
The maintenance of the controller must be carried out in a safe working environment. The maintenance personnel cannot disassemble or replace the wiring at will during inspection. Dust shall be cleaned regularly to ensure that the controller itself and its surroundings are clean and sanitary.
