LNG Car: Outstanding Problems Worth Attention
Under the background of a depressed commercial vehicle market, LNG vehicles have emerged as the new darling of the automotive industry due to their clean and energy-saving advantages. At present, many transport companies and self-employed people have purchased LNG products. So what's the usage of these users?
Economic disputes
A survey by the reporter found that most users expressed their recognition of the economics of LNG vehicles, but they also had different voices.
At the Nanjing Bus Show, the reporter once encountered a user engaged in short- and medium-distance transport. He has an interest in buying LNG passenger cars, but he has a skeptical attitude towards its outstanding economy. “In order to save costs, the company intends to purchase 4 LNG passenger cars. Looking at many brands, publicity personnel have invariably mentioned that LNG vehicles have good fuel economy. Compared with diesel vehicles, they can save 25% to 30% of the cost. However, this was different from my investigation results.†The user told reporters that he had investigated some passenger transport companies that owned LNG vehicles and found that although their fuel-saving performance was worthy of recognition, they were not as prominent as the manufacturers’. Save 10% to 15% of the cost.
In response, Mr. Li, the general manager of a certain Shanxi Automobile Co., Ltd., agreed. "Each car company is going to advertise its own products and will surely add some moisture to the car's indicators. This is normal. When I purchased the LNG car, the service staff told me that I could save about 1/3 of the cost, but the actual operation When it comes down, it only saves less than 20%, and if there is a case where the owner is not operating properly or is not on schedule, the fuel economy will be greatly reduced.
However, Mr. Li admitted that even saving fuel costs of 15% to 20% is a considerable figure, indicating that LNG vehicles are worthy of recognition and trust.
Regarding the controversy over whether the economy is outstanding, people in the industry believe that the difference in the economic efficiency of LNG vehicles is related to the traffic that the users engage in and the road conditions they pass through.
"What is certain is that even if it is the same model, the cost savings are different. Imagine how the daily overloaded trucks are compared to the standard cars? How do vehicles operating on the mountain roads and cars driving on highways every day? For comparison, judging the economy of the vehicle is based on the actual situation of the user, and of course, it is also related to the driver's technology and habits, and some drivers have an energy efficiency of 25% to 30%. Drivers can only reach 15% to 20%,†said the person in the industry.
Refraction problems
Today, LNG models are relatively mature in technology, but problems still exist in complex environments.
“In the mining area, due to the harsh environment, many LNG vehicles have experienced frequent failures due to their inability to adapt. Frequent problems are concentrated on electrical controls such as high-voltage coils and relays. Although these parts are relatively mature products, many The quality of the manufacturer's products does not pass, "said a brand dealer in Xinjiang.
“In addition, through the communication with users, it has been found that many manufacturers have LNG vehicles with quality problems. First, some mine vehicles not only have frequent engine and air supply system failures, but also have chassis problems due to unacceptable road conditions. The ignition coils of LNG vehicles are particularly fragile and there are often cases where vehicles cannot be started, said the dealer.
In addition, the gas tank problem should also be worth noting. “A lot of users have not fully understood the gas tank, and sometimes mistakenly see the gas discharged after the pressure increase in the gas tank as a gas leak, causing many unnecessary troubles. Sometimes, gas tank problems arise due to improper operation. Due to the strong vacuum in the gas tank, as time goes by, once the gas tank leaks, it must be replaced, and the cost of replacement is also very high, it is estimated that it needs 20,000 to 30,000 yuan. The 80,000 to 100,000 yuan in LNG heavy trucks and the cost of replacing gas tanks are not so outstanding in terms of economic efficiency,†the dealer said.
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