1. The impact sound of the piston top and the cylinder head 2. Abnormal sound of piston ring The abnormal sound of the piston ring mainly includes the metal knocking sound of the piston ring, the leakage sound of the piston ring and the abnormal sound caused by excessive carbon deposition. 3. Knocking sound Cylinder knocking refers to the oscillation of the piston in the cylinder at the moment when the piston starts its working stroke, or when the piston goes up. The abnormal sound of "dangdang" or "click" caused by the collision of its head and skirt with the cylinder wall. If it is a "dangdang" sound, it is mostly caused by poor lubrication of the cylinder wall. At this time, you can drop a little oil into the cylinder and restart the engine. If the abnormal sound is reduced or disappeared, it means that the abnormal sound is indeed caused by poor lubrication. If it is a "click" sound and blue smoke is emitted from the exhaust pipe, it is generally due to the excessive clearance between the piston and the cylinder wall. 4. The percussion sound of the piston pin 5. Abnormal sound of valve 6. Abnormal noise from the combustion chamber

China's automobile manufacturing industry has developed rapidly and still has a strong room for development. Driven by the rapid growth of the automobile market, the domestic engine market has also shown vigorous development in recent years. In recent years, in the face of the depletion of world oil resources and the continuous improvement of environmental protection requirements, people attach great importance to the research on alternative fuels for engines. New products such as natural gas, dimethanol and hybrid power have been gradually developed and applied in engines. Both domestic vehicle companies and professional engine manufacturers are increasing their research and development efforts in order to occupy a place in the fierce market. Engine technology with advanced performance and good stability will play a key decisive role in the development of automotive energy-saving and environmental protection technologies. Therefore, building a high-quality automobile engine has become the key to improving the brand of automobile quality. Due to the dual pressures of oil shortage and environmental protection, vehicle and engine manufacturers have invested heavily in the research and development of various high-efficiency, low-energy, and low-emission engines. Therefore, energy-saving and environmentally friendly engines will become a major development trend in the future.

Time: 2022-11-01to 2022-11-03 AAPEX, the Las Vegas Auto Parts and After-Sales Exhibition, is the world's largest automotive after-sales professional exhibition and the largest auto manufacturing trade fair in the United States. And received the support of the two major American auto industry associations and the US Department of Commerce, is the only way to enter the North American and European auto parts market. The American International Auto Parts and After-sales Service Exhibition is held every year, bringing together auto parts users and after-sales service providers from North and Central America, South America, Europe, and the Middle East. It is one of the world's largest auto manufacturing trade fairs.Highlight the auto aftermarket and car care products. The American Auto Parts and After-sales Service Exhibition displayed all relevant new products and new concepts. The exhibits ranged from the product series of the automotive after-sales service market, various auto parts, seat belts, brake parts, chassis, etc., with a high degree of professionalism. It is a professional exhibition for the world's largest automobile manufacturing trade and automobile after-sales service market.

MIMS Automechanika Moscow Time: 2022-08-22 to 2022-08-25 Location: Russia - Moscow Industry: Automobile and accessories First held: 2010 Exhibition Year: 2022 Range of exhibition: Components and systems: parts and components of automotive drive, chassis, body, electrical equipment and electronic systems, systems and modules for automotive interior, exterior, drive, driving dynamics and electronic control; accessories and modifications: automotive accessories, special equipment, modification systems, Performance Systems, Tires; Repair and Maintenance: Auto Service and Repair Equipment, Body Repair and Painting, Tire Repair, Repair Station Construction and Management; Gas Stations and Car Washes: Gas Station Equipment, Car Care and Cleaning, Lubricants, Lubricants and antifreeze; IT and management: IT products, vehicle exchanges, insurance, finance, lease management, damage management, vehicle inspection services, dealer management systems, agency planning and design, agency market etc. Exhibition introduction: Since 2010, MIMS Automechanika Moscow has been co-hosted by Messe Frankfurt and ITE in response to the needs of the industry and organized by MIMS and Automechanika once a year. The exhibition focuses on the rapidly developing Russian automotive market, including various segments of the automotive industry, from the latest auto parts and accessories to after-sales maintenance equipment. After the unremitting efforts and pursuit of two exhibition giant companies in recent years, it has been cultivated into the largest and most professional auto parts industry exhibition in Russia and Eastern Europe.It provides an excellent market platform and opportunities for automobile manufacturers, spare parts suppliers and after-sales service suppliers in Russia and Eastern Europe.

Brembo is believed to be familiar to everyone. This braking system company from Italy has always been famous for its high-performance braking solutions. This time, Brembo brings the new SENSIFY intelligent braking system. It should be emphasized that this system does not refer to a specific brake disc or pad, but includes the current Brembo product portfolio such as calipers, brake discs and friction materials, and is equipped with digital technology and artificial intelligence.Build a flexible platform that employs software, predictive algorithms and data management systems, an overall term for an ecosystem that realizes the digitization of braking systems. It is reported that the system will be available in early 2024. So what are the revolutionary advantages of this system? See a brief summary below. Brembo is believed to be familiar to everyone. This braking system company from Italy has always been famous for its high-performance braking solutions. This time, Brembo brings the new SENSIFY intelligent braking system. It should be emphasized that this system does not refer to a specific brake disc or pad, but includes the current Brembo product portfolio such as calipers, brake discs and friction materials, and is equipped with digital technology and artificial intelligence.Build a flexible platform that employs software, predictive algorithms and data management systems, an overall term for an ecosystem that realizes the digitization of braking systems. It is reported that the system will be available in early 2024. So what are the revolutionary advantages of this system? See a brief summary below. 1. Flexible vehicle configuration scheme 2. A variety of applicable scenarios 3. Effectively improve safety performance 4. Can be customized according to the preferences of manufacturers or customers 5. Effective cost control 6. Meeting Sustainable Development Needs In the face of sustainable development, the Brembo SENSIFY system uses ENESYS energy-saving springs on the caliper hardware. This structure allows the brake pads to better return after braking, thereby reducing drag torque and energy waste, increase the cruising range.

Ford raises prices for electric pickups due to significant increase in raw material costs Ford says the price increase will be between $6,000 and $8,500, depending on the model. The company said the price increase will not affect customers who have ordered vehicles and are awaiting delivery. Ford's 2023 F-150 Lightning electric pickup now starts at $47,000-$97,000, while the 2022 model will start at around $40,000-$92,000. Prices do not include tax and shipping. Ford is the latest automaker to raise the price of its latest electric vehicle amid inflation and rising commodity costs. GM previously raised the price of its Hummer EV pickup by $6,250, and EV startups Rivian Automotive and Lucid have seen their vehicles cost more than that. Tesla has also raised pricing on its vehicles this year. Raw material costs for electric vehicles have more than doubled during the COVID-19 pandemic, according to a new report from consulting and research firm AlixPartners.

Do you have a certain understanding of car door lock design? Today, I will talk to you about how car door locks are designed? What functions does it have? The car door lock system is a device installed on the car door and its column, which can lock the car door reliably, and realize the opening and locking functions through its internal mechanism. It is a very important body accessory. It has the function of safety protection, that is, to ensure the reliable locking of the door in normal use, to prevent accidental/unintentional opening of the door, and to ensure the smooth opening of the door when needed, to ensure normal or emergency passage, so as to avoid life or property casualties loss.It belongs to safety regulations, also known as terminal closure function. Classification of car door locks Car door locks can be broadly divided into: mechanical locks, ordinary electric locks and super locks. Mechanical lock: The locking/cut-off and opening actions are all done by manual operation. According to the structure: there are tongue-type door locks, hook-type door locks, and card-type door locks. Reed door lock: It uses the engagement and disengagement of the lock tongue and the block to achieve locking and opening. The lock tongue does a linear reciprocating motion, and the door lock has a locking mechanism to prevent the door lock from opening unintentionally. The disadvantage is that it cannot bear longitudinal loads and is less safe. At the same time, closing the door is laborious and noisy, and the lock tongue and block are easy to wear. Hook-and-spring door lock: It uses the engagement and disengagement of the lock hook and the block to achieve locking or opening, and the lock hook performs a pendulum motion. The disadvantage is that the ability to withstand longitudinal loads is extremely low. Card-type door lock: It uses the principle of ratchet and pawl to achieve locking or opening through the engagement and disengagement of the rotating card and the block. It has two positions of full locking and half locking, which is safe and reliable. Most of the parts are steel stamping parts, which have good workmanship.

The concept of light weight has spread in recent years and has become a point of concern for people and a selling point of business promotion, and the light weight of automobile brake discs has become a hot topic recently. It is understood that major brake companies brought their latest products at the Frankfurt exhibition, innovating in terms of material and structure to meet the current trend of lightweight and long life. Under the current high-efficiency logistics transportation conditions, asbestos materials or steel semi-fibers are very easy to carbonize, which affects driving safety and vehicle attendance. Carbon fiber stands out for its high strength and low density, ultra-high temperature resistance in non-oxidizing environment, good fatigue resistance and light weight. This composite material provides low density and light weight brake pads; it also provides a smooth braking curve, while accepting more friction shocks and less wear, which also increases service life. After technical research, some manufacturers have developed carbon fiber brake pads. Scientifically speaking, this brake pad material is not entirely made of carbon fiber, but a composite material that incorporates some metal materials. After talking about the brake pads, let's take a look at the brake disc. The reason for replacing the disc of a disc brake is more of a crack than reaching the wear limit. In order to improve the strength of the brake disc, the strength of the brake disc is studied from the viewpoint of material and structure. In terms of materials, cast iron is now the main material, but it is developing in the direction of forged steel. The strength of special forged steel brake discs is twice that of cast iron brake discs. However, other new materials such as ceramic materials cannot be promoted because of high cost. Ceramic material has not been used even in European and American commercial vehicles, but it is proposed to make a design in structural design. Among them, bimetallic materials have been promoted. The so-called bimetal means that the brake disc is still made of cast iron, but the inner ring is made of high-strength steel to meet the needs of lightweight.