Automotive electronics technology has evolved from using a single technology to solve specific problems to the stage of solving system problems with integrated and integrated control technology. The goal of integrated integrated control is to achieve a unified and coordinated control over multiple control objectives to improve overall vehicle dynamics, economy, ride comfort and stability.
For example, chassis integrated electronic control technology combines the functions of anti-lock braking system ABS, drive wheel anti-skid technology ASR, active front steering system AFS and direct yaw control DYC; integrated control of the engine and automatic transmission Integrated control of active and passive safety technologies.
In a distributed control system based on the vehicle control network <br> <br> Currently, the number of electronic control units on the car more and more, even up to dozens. In order to realize multi-objective integrated integration control, a control layer at the highest level needs to be established to play a comprehensive and coordinated role, such as the vehicle controller VECU, to obtain the best vehicle control effect through the global optimization method. The application of in-vehicle network bus technology based on automotive distributed control systems provides technical assurance for the integrated integrated control of the vehicle.
Safety control technology and intelligent automotive parts <br> <br> With the rapid development of information technology and sensor technology to accident prevention as the main purpose of intelligent safety control technology came into being. This kind of technology can automatically sense the traffic environment, judge the driving safety status of the vehicle in advance, and actively assist the driver in achieving control of the vehicle status, which greatly improves the driving safety of the vehicle.
In addition, with the rapid development of chip technology and in-vehicle network technology, and people's further improvement in vehicle comfort and handling performance, more and more auto parts have emerged with intelligent features, such as the ability to achieve turn-following functions. Intelligent lighting system, intelligent air conditioner with automatic temperature adjustment function, fully automatic smart seat with automatic memory function, intelligent parking system that can realize panoramic video, adaptive cruise assisted driving control, automatic collision avoidance control, etc.
"Gravity Die Casting. A permanent mould casting process, where the molten metal is poured from a vessle of ladle into the mould, and cavity fills with no force other than gravity, in a similar manner to the production of sand castings, although filling cn be controlled by tilting the die."
Gravity Die Casting
Sometimes referred to as Permanent Mould, GDC is a repeatable casting process used for non-ferrous alloy parts, typically aluminium, Zinc and Copper Base alloys.
The process differs from HPDC in that Gravity- rather than high pressure- is used to fill the mould with the liquid alloy.
GDC is suited to medium to high volumes products and typically parts are of a heavier sections than HPDC, but thinner sections than sand casting.
There are three key stages in the process.
- The heated mould [Die or Tool] is coated with a die release agent. The release agent spray also has a secondary function in that it aids cooling of the mould face after the previous part has been removed from the die.
- Molten metal is poured into channels in the tool to allow the material to fill all the extremities of the mould cavity. The metal is either hand poured using steel ladles or dosed using mechanical methods. Typically, there is a mould [down sprue" that allows the alloy to enter the mould cavity from the lower part of the die, reducing the formation of turbulence and subsequent porosity and inclusions in the finished part.
- Once the part has cooled sufficiently, the die is opened, either manually or utilising mechanical methods.
Advantages
- Good dimensional accuracy
- Smoother cast surface finish than sand casting
- Improved mechanical properties compared to sand casting
- Thinner walls can be cast compared to sand casting
- Reverse draft internal pockets and forms can be cast in using preformed sand core inserts
- Steel pins and inserts can be cast in to the part
- Faster production times compared to other processes.
- Once the tolling is proven, the product quality is very repeatable.
- Outsourced Tooling setup costs can be lower than sand casting.
Gravity Casting Parts,Aluminum Alloy Gravity Casting Parts,Aluminum Gravity Die Casting Parts,Gravity Casting Aluminum Parts
HSI INDUSTRIEL LTD , http://www.hsiindustriel.com