The scope of the components to which the assembly (system) belongs is mainly used for the assembly and system of the vehicle identification of the vehicle, and the principle of the scope of the components to which the assembly (system) belongs: First, the functional integrity; Second, the assembly phase division clear. At the same time, refer to the standard QC/T265-2004 "Automotive Product Parts Numbering Rules", QC/T514-1999 "Car Body Terminology", GB/T4780-2000 "Automobile Body Terminology", GB/T5727-1985 "Automotive Hydraulic Transmission" Terms and Definitions, GB/T5333-1985 "Automobile Axle Terms and Definitions", GB5620.2-1985 "Automotive and Trailer Brake Terms and Definitions", GB/T5179-1985 "Automotive Steering Terms and Definitions" . Body (cab): The body of the body before the paint process (white body), excluding body accessories and decorative parts. Mainly composed of body structure parts and cover parts (non-loaded body) welding. The M1 category includes the front, side, rear, top, body floor, fender, door, hood, trunk lid (or back door assembly). Other types besides M1 include front wall, side wall, rear wall, top cover, body floor, floor cover (metal parts), roof louver, fender, door, hood, body frame (non-loaded Bodywork, etc. Engine assembly : Including cylinder block, cylinder head, timing gear chamber, valve cover, crankshaft, flywheel, connecting rod, piston, bearing bush, camshaft, timing mechanism, intake and exhaust valve, drive mechanism, intake and exhaust manifold, ignition system, Pump, lubricating oil pump, oil filter, crankcase ventilation, fuel pump, EFI device (including ECU, throttle body, fuel injector, sensor), supercharger, starter, generator, fuel line, Fuel filters, sensors and alarm devices; Diesel engines also include high pressure oil pumps, intercoolers, and the like. Does not include radiators, fans, air filters, mufflers, fan clutches, emission control devices (particle traps, three-way catalysts, etc.). Transmission assembly : The automatic transmission includes a housing, a gear mechanism (or a friction wheel and a steel belt), a shaft, a bearing, a shifting mechanism assembly, a torque converter, an automatic transmission control module (ECU), an oil pump, a hydraulic control box, a sensor, Transfer case, etc. Manual transmissions include housings, gears, synchronizers, shafts, bearings, shifting mechanism components, sensors, clutches, transfer cases, and the like. Does not include a remote operating mechanism. Drive axle assembly : Including the main reducer, differential, axle housing, half shaft (including constant velocity joint), steering knuckle, swing arm, hub, bearing, suspension spring, shock absorber and so on. Non-drive axle assembly : Including axles (tractor arm assemblies), hubs, bearings, suspension springs, shock absorbers, etc. Frame assembly : Including the stringer (or the front subframe and engine bracket of the load-bearing body), the beam (or the rear subframe of the load-bearing body), etc. Brake system : Including brake pedal, return spring, brake master cylinder, wheel cylinder, booster, brake, ABS system (ECU, valve body, sensor), brake line, liquid storage tank, retarder, brake force adjustment device , service brake pedal device, parking brake control device, three-way control valve, sensor, alarm device, etc. The pneumatic brake system also includes a brake chamber, a brake shoe actuator, an air compressor, an air reservoir, a filter, an air brake valve, a double check valve, a relay valve, a quick release valve, and the like. Steering system : Including steering wheel (including airbag), steering column, steering column bracket, steering shaft, universal joint, steering gear, steering bracket, steering rocker, steering rod, knuckle arm, trapezoidal mechanism, etc. Power steering also includes steering control valves, steering cylinders, steering oil pumps, steering power tanks, steering motors and control modules. Transfer case assembly : Including housings, shafts, bearings, gears (or chains), adapters, shifting mechanism components, electronic controls, and the like. Description : 2. For components with more than one function, they will be divided into their own assemblies with their most important functions. 3. For the components (except the body assembly, frame assembly), the integrity of the sub-assembly (such as pipelines, bolts, nuts, screws, clamps, adhesives, etc.), seals and fixtures, etc. Within the assembly. 4. Each assembly does not include fuel, lubricating oil, grease, coolant, brake fluid, power oil, etc., which are not related to its processing and assembly process. Hot Selling Power Tools, Wallpaper Stripper, Wall Chaser, Electric Paint Mixer Hot Selling Power Tools, Wallpaper Stripper, Wall Chaser, Electric Paint Mixer Ningbo Brace Power Tools Co., Ltd , https://www.cnbrace.com
1. Due to the diversity of the structure of each assembly, the above defined range is not unique, and different structures will be judged mainly based on the function of its components.