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Chang'an automobile sales fell 20.4% in November, and SUV models declined severely.
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By 袁春凤 (Tiffany)
The phenomenon that two objects move relative to each other to produce motion resistance between their contact surfaces is called friction, which is called friction. The existence of friction not only increases the power consumption, but also causes the wear of parts' contact surfaces. Therefore, lubricating oil is usually used between the relative moving surfaces of automobile parts to reduce friction. Failure of automotive parts 75% is caused by friction.
Friction can be divided into dry friction, liquid friction, boundary friction and mixed friction according to the lubrication state of the parts.
(1) dry friction
The friction between the frictional surfaces without any lubricating medium is called dry friction.
When the parts are in the state of dry friction, the surface of the parts is abraded sharply, so the surface of the moving parts of the automobile should avoid the occurrence of dry friction as far as possible.
Dry friction and boundary friction are the main friction between the upper part of cylinder wall and piston ring. Dry friction will occur when the journal and bearing are subjected to impact load in the working process.
(2) liquid friction
Two the friction of the friction surface when the lubricant is completely separated is called liquid friction.
In liquid friction, the two friction surfaces are completely separated by a layer of lubricating oil film with a thickness of 1.5-2.0um, which avoids direct contact between the working surfaces of the two parts. Friction only occurs between the lubricating fluid molecules, so the friction resistance is very small, and the wear of the parts is very slight.
Most of the relative motion parts of a car are carried out under the condition of liquid friction (for example, crankshaft and bearing).
(3) boundary friction
Two friction surface separated by a very thin boundary film is called boundary friction.
The oil film thickness is usually below 0.1um. Friction only occurs between the outer molecules of the boundary film, reducing the friction and wear of the parts. But its thickness is very small, and it is easy to be destroyed by impact and high temperature, so it is not as reliable as liquid friction.
For example: between cylinder wall and piston ring; if the work crankshaft and journal between the insufficient supply of lubricant, easy to produce boundary friction.
(4) Mixed friction
The friction between two friction surfaces in the presence of dry friction, liquid friction and boundary friction is called mixed friction.
In the actual working state, the parts usually work under the mixed friction state, and the friction state varies with the working conditions.
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By shelitaauto
URL:
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In the second quarter,
link hidden, please login to view’s electric vehicle sales in the United States again surpassed General Motors, ranking second in the U.S. electric vehicle market sales, and is on track to close the gap with Tesla.
Ford Mustang Mach-E; Image source: Ford
In the second quarter of this year, Ford sold 23,957 electric vehicles in the United States, a 61% increase from the same period last year, when total electric vehicle sales were 14,843. Meanwhile, Ford’s sales of hybrid vehicles rose 55 percent year over year. However, sales of internal combustion engine cars were down 5 per cent year on year.
Ford saw double-digit sales growth for several of its electric vehicles. Sales of the Ford F-150 Lightning rose 76.9% to 7,902 units. While new competitors such as the Tesla Cybertruck and the Chevrolet Silverado EV RST have all hit the U.S. market, the Ford F-150 Lightning remained the best-selling electric truck in the U.S. in the first half of the year, with 15,654 units sold.
Second-quarter sales of the Ford Mustang Mach-E were up 46.5% year-over-year to 12,645 units. In the first half of this year, 22,234 units of the Mustang Mach-E were delivered, the best performance ever. Sales of Ford’s E-Transit electric van continued to climb in the second quarter, rising 95.5 percent to 3,410 units from a year earlier.
In the first half of 2024, Ford sold a total of 44,189 electric vehicles in the U.S. market, up 72% from 25,709 in the same period last year.
Ford CEO Jim Farley said the automaker is shifting to smaller, more affordable electric vehicles to close the gap with Tesla and fend off competitors like BYD worldwide. Referring to Americans’ love affair with “larger vehicles,” Farley said smaller electric vehicles are “very important to driving the decarbonisation of American society and the development of electric vehicles.”
Ford’s surge in electric vehicle sales in the US market is enough for it to continue to overtake General Motors. In the United States, GM delivered 21,930 electric vehicles in the second quarter, compared with 38,355 in the first half of 2024.
GM is also ramping up production by introducing new models, with electric models such as the Chevrolet Blazer, Equinox and Silverado coming to the U.S. market. While Tesla did not give specific sales figures by region, its second-quarter electric vehicle sales worldwide exceeded expectations, delivering 443,956 electric vehicles and remaining №1 in the U.S. market.
As competition in the U.S. electric vehicle market intensifies, other competitors, including Hyundai and Kia, also set new EV sales records in the second quarter. Hyundai Motor, for example, set a new sales record with its IONIQ 5 model, which sold 18,728 units in the first half of the year. Meanwhile, sales of Kia’s first three-row electric SUV, the EV9, are also climbing.
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By TT-ABC
TT-ABC produces various brands of car headlights and taillights. For example, Toyota (Camry, 4Runner, Land Cruiser, FJ Cruiser, Prado, Highlander, Avalon, CHR), Honda (Accord, Civic, Jazz, CR-V), BMW, Mercedes-Benz, Lexus, Ford, Tesla, Land Rover, Dodge, Chevrolet, Mitsubishi, Cadillac, Nissan, Hyundai, etc. We support bulk purchases and custom development. We launch new products every month. You can follow our social media accounts and our official website (search "TT-ABC" on Google). We have sales promotions on various platforms. You can search TT-ABC on various platforms to find us. Our company has always been known for its service. Our headlights and taillights have a one-year warranty and 24-hour quick response.
This is our official store:
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By shelitaauto
Source: Gasgoo
URL:
link hidden, please login to view According to foreign media reports, the Australian Federal Automobile Industry Chamber of Commerce released automobile sales data in May, the month of new car sales in Australia hit a record high. Sales of hybrid vehicles doubled year on year to reach 15.8 percent of the market, compared with a 0.4 percent increase in electric vehicle sales.
Almost one in every four new cars in Australia is currently a low-emission vehicle, so hybrid and electric vehicles are taking a greater share of the market. Meanwhile, Australians’ love affair with larger cars is still on the rise, with SUVs still dominating and ute sales continuing to grow.
This trend has more than doubled the popularity of hybrid cars in 2024, with more than 66,000 units sold, compared to less than 30,000 in the same period in 2023.
Electric vehicle sales also increased in Australia in May, with more than 8,900 units sold, accounting for 8.1 per cent of all new car sales, with more than 40,000 new electric vehicles on the road in Australia in the first five months of the year.
Tony Weber, the chamber’s chief executive, said the auto industry is working hard to meet the needs of drivers. “The continued growth in vehicle sales underscores consumer confidence and demonstrates the industry’s ability to meet the diverse needs of Australian consumers in the face of the current economic challenges,” he said.
However, large vehicles remain a popular choice for drivers regardless of fuel consumption, with SUVs accounting for more than half of vehicles sold and light commercial vehicles accounting for 22 percent of new vehicles. UTE also took three of the top five best-selling cars in May, with the Ford Ranger taking the top spot, followed by the Toyota Hilux and Isuzu’s D-Max light truck in fourth place.
Image source: Ford
Toyota was again the top-selling car manufacturer in Australia for the month, followed by Ford, Mazda, Kia and Hyundai. The data also showed a drop in sales for electric car leader Tesla, with the US company selling 3,567 vehicles in Australia in May, compared with 4,476 in the same month last year.
Its main electric car rival BYD, however, saw sales climb, with the Chinese company selling 1,914 electric vehicles in the month, up 32 percent from a year earlier.
The growing sales of electric and hybrid vehicles come ahead of the introduction in January of Australia’s first fuel efficiency standard, a legal standard that will set emissions limits on carmakers’ fleets of passenger cars, large and commercial vehicles in an attempt to reduce transport emissions by 2030.
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By AutoZone
MEMPHIS, Tenn. , May 21, 2024 (GLOBE NEWSWIRE) -- AutoZone, Inc. (NYSE: AZO) today reported net sales of $4.2 billion for its third quarter (12 weeks) ended May 4, 2024 , an increase of 3.5% from the third quarter of fiscal 2023 (12 weeks). Same store sales, or sales for our domestic and
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