1 Special automotive term Passenger vehicle

is a car that is mainly used to carry passengers and their carry-on luggage and/or temporary items in terms of its design and technical characteristics, including There are no more than 9 seats including the driver's seat. It can also tow a trailer. Passenger cars include cars, minibuses and light buses with no more than 9 seats. Passenger cars are subdivided into basic passenger cars. (sedans), multi-purpose vehicles (MPVs), sports utility vehicles (SUVs), special-purpose passenger cars and crossover passenger cars.

Cars are classified according to mainland China standards: mini cars ( Displacement is less than 1L), ordinary sedan (displacement is 1.0~1.6L), mid-level sedan (displacement is 1.6~2.5L), mid- to high-end sedan (displacement is 2.5~4.0L), premium sedan (displacement is 2.5~4.0L) (Above 4L) Currently popular is the German classification method, which is divided into A, B, C, and D classes. A-class cars can be divided into three-class cars such as Aoo, Ao, and A, which are equivalent to mini cars and ordinary cars in my country. Sedan; B-class and C-class are equivalent to my country's mid-level cars and mid- to high-end cars respectively; D-class cars are equivalent to my country's high-end cars.

The wheelbase of the A00 class is 2-2.2 meters and less than 1 liter. Class A0 2.2-2.3 meters 1-1.3 liters Class A 2.3-2.45 meters 1.3-1.6 liters Class B 2.45-2.6 meters 1.6-2.4 liters Class C 2.6-2.8 meters 2.3-3.0 liters Class D greater than 2.8 meters greater than 3.0 liters

2 Chinese people prefer large space, and the actual wheelbase and displacement are relatively large

MPV The full name of MPV is Multi-Purpose Vehicle, which is a combination of sedan, station wagon and car. The function of the van is integrated into one. Each seat in the vehicle is adjustable and can be combined in a variety of ways. For example, the backrest of the middle row seat can be turned down to become a table, and the front seat can be turned into a 180-degree table. degree of rotation, etc. In recent years, MPVs have tended to be miniaturized, and the so-called S-MPV has emerged. S means small (Small). The length of S-MPV is generally between (4.2-4.3) meters, and the body is compact. Generally (5-7) seats.

SUV The full name of SUV is Sport Utility Vehicle, which means sports utility vehicle in Chinese. Now it mainly refers to those four-wheel drive off-road vehicles with avant-garde design and novel appearance. . SUVs generally have a car-type independent suspension in the front and a non-independent suspension in the rear, with large ground clearance. To a certain extent, they have the comfort of a car and the off-road performance of an off-road vehicle. The multi-functional seat allows the vehicle to carry both people and cargo, and has a wide range of applications.

Pick-up (PICK-UP), also known as a sedan, is, as the name suggests, both a sedan and a truck. It is a vehicle that uses a car front and cab and an open truck bed. It is characterized by the comfort of a car without sacrificing power. It is also better than a car in carrying cargo and adapting to poor road conditions.

Crossover passenger vehicles in China specifically refer to minivans (small VANs), commonly known as vans. The so-called VAN refers to a closed box truck. From a global perspective, the Weike (small VAN) market is mainly concentrated in some regions such as Europe, Japan, China and India. Although the evolution of product consumption functional requirements for Weike (small VAN) products in Japan and Western Europe is different, they are ultimately dominated by merchants' dual-use functional requirements, and ride comfort and

3 safety are constantly improving.

SOP is the capital combination of the first letters of the three English words Start Of Production, which means starting mass production, that is, the product can be mass-produced. Trial production P (Pilot

Before the product is officially put into production (SOP), in order to verify the quality of parts provided in batches under complete tooling and process conditions, the production activities of assembling a certain number of products on the production line, a single variety The quantity is generally no more than 50 units.

Pre-Pilot PP (Pre-Pilot

Before trial production (P), in order to complete the final verification and approval of the product and/or process, the production activities of using tooling parts to assemble products on the production line in accordance with process requirements , the quantity of a single variety generally does not exceed 5 units. Mold development TG0 (Tool Go 0)

TG0 data: a rough three-dimensional digital model indicating the basic shape and size of the part in the complete vehicle position. Contains key features, edges and interfaces, as well as centerlines (harnesses and tubulars) that can be used for part location. The selected mold supplier should confirm that the mold design is feasible on a target cost basis, based on TG0 data. Mold design and raw material ordering

4. Engine system(Automotive Engine System)(Automotive Engine System)(Automotive Engine System)Combustion Chamber(Combustion Chamber)(Combustion Chamber) The space between the top of the piston and the cylinder head after it reaches top dead center, where fuel is burned. Compression Ratio (Compression Ratio) (Compression Ratio) The total volume of the cylinder with the piston at bottom dead center divided by. The total volume of the piston at top dead center (combustion chamber volume), the resulting value is called the compression ratio

Connecting Rod (Connecting Rod) (Connecting Rod) (Connecting Rod) connects the crankshaft in the engine. The connecting rod with the piston. Cooling System Cooling System (Cooling System) (Cooling System) can remove excess heat from the engine to prevent overheating in water-cooled engines. Water jacket, water pump, water tank and thermostat. Crankcase (Crankcase) (Crankcase) (Crankcase) The lower part of the engine is where the crankshaft runs, including the lower part of the cylinder block and the oil pan.

Crankshaft (Crankshaft) (Crankshaft) (Crankshaft) The main rotating part of the engine. After the connecting rod is installed, it can accept the up and down (reciprocating) motion of the connecting rod into cyclic (rotational) motion. Crankshaft Gear (Crankshaft Gear). (Crankshaft Gear) (Crankshaft Gear) A gear or key gear mounted on the front end of the crankshaft, usually used to drive the camshaft gear, chain or toothed belt.

Cylinder Block (Cylinder). Block) (Cylinder Block) is the basic structure of an engine. All engine parts and accessories are installed on this part, including the engine cylinder and the upper part of the crankcase. Cylinder head Cylinder head (Cyli (Cyli (Cylinder Head)nder Head)nder Head) The cover of the engine and the parts that seal the steam gap, including water jackets, valves and cooling fins.

Detonation Detonation (Detonation) (Detonation) (Detonation) is the impact or popping sound of the flame. In the combustion chamber of a spark ignition engine, the compressed air-fuel mixture will spontaneously ignite, causing the parts to ignite. The unburned mixture produces secondary ignition (after the spark plug ignites), resulting in the popping sound.