The people developed the electric automobile in the past are for solve the exhaust which the higher fuel oil cost and increased day by day to discharge the question, however, their development because went is away from limited also lacks the support infrastructure (namely battery charging station) to suffer greatly. Mix power automobile 先进�?lies in between the internal combustion engine engine and the electric car transformation bridge. The mix power automobile fuel oil efficiency high, the electric automobile can reduce discharges, thus causes the travel distance to be farther, and is advantageous for using the internal combustion engine engine infrastructure obtains the energy support.

The mix power while always becomes the system with the vehicle main transmission to include: After electric motor/generator (front), controller (center) and battery package ().

In the mix power automobile, the power always becomes including from the internal combustion engine engine and the electric car module. The system module detailed list includes: A battery package, a Taiwan Telegraphic Transmission motive/generator and an internal combustion engine engine. The internal combustion engine engine provides the electric power and the mechanical power to the system. The mix power automobile power always becomes uses three kind of dispositions: One-above-the-other layout, parallel disposition and series-parallel connection combination disposition. Regardless of uses what kind of disposition, the automobile reliable work all is decided by always becomes the module to the power the success integration.
Mechanical and electrical system

The standard and the mix power automobile all relies on the electric power, the machinery and the software technology integration, the people more and more many use the automobile electron and software control or substitute for the machinery the work. These three designs discipline occurs together becomes the mechanical electronics. The mix power automobile is the mechanical electronic design core.

The mix power automobile relies on to the machinery, the electric power and the software technology effective integration.

Will unify these technologies to a standard automobile in faces the complex design challenge, among, the electron and the software control uses in the non- power supply application. In integrates the non- power automobile 电子�?system in the process, mix power automobile design faced with same challenge, and the automobile dynamic system electron and the software control is more complex. Because of this kind of integrated request, the mix power automobile is waits for one of the design, the manufacture and maintenance most complex systems.

Along with automobile complex increase, the people start the nice reliable question. Therefore, the design mix power automobile system needs one kind systematically, the organized method of exploitation. In order to guarantee the system reliability, this organization method needs on to perform from the design the reliable question as the design process constituent to consider. The Lu Bang design method provides the organized overhead construction which the design reliable mix power automobile system needs.

Lu Bang designs (Robust Design) the method is one kind organized and the process confirmation development philosophy, its design goal provides the system the reliability. The robust principle of design lets the design team be able to the process which may duplicate to deal with the complex system integration issue. The following chart shows, designs the system concept input signal based on Lu Bang and processes an appropriate response. However, in the model environment, the design change is possible to affect the system the performance. The design team must realize the control technology to compensate the design the change.

The general robust design system diagram is take the Taguchi method as the foundation.

Lu Bang designs the flow the key point is reduces the design change to the system performance and the reliable influence, these changes possibly comes from the design source interior or exterior, including the primary device tolerance, the manufacture process, the user pattern, the environment and the change which because factor and so on system aging causes. Although these change types are many, each kind of factor all possibly has the tremendous influence to the system reliability. The robust design flow essential target is: While solves the problem which these changes causes, must from aspect and so on performance, reliability and cost optimizes the system design.
In the model design flow, the question which the solution many kinds of changes causes needs the widespread test. This meant once the system design completes, must make the prototype and carry on the test. The Lu Bang design flow needs to test the many kinds of variables, this meant must construct the new prototype and test each kind of variable. Obviously, uses this kind of design - prototype - test flow to realize the method which Lu Bang designs too time-consuming also very is in fact expensive.

The solution is shifts the design - prototype - test operation to the hypothesized world does the simulation and the analysis. This is the hypothesized prototype which often said. Uses likes the Saber such modern design tool, the design team can design and construct its system the hypothesized prototype, and in assigns moves for within the traditional design - prototype - test flow time and the budget tests many times. Therefore, the simulation and the modelling are realizes Lu Bang to design the flow the key request.

Design flow

Designs the flow based on the modelling and simulation Lu Bang to have to follow close on the system process. This process key is determined that,

Pneumatic system essential performance weight standard;

- To can highlight these weight standards the way to carry on the modelling to the system;

- In system performance history each stage confirmation weight standard;

Lu Bang designs the flow to have the basic development advancement, needs to use the here demonstration the simulation ability.

Effective Lu Bang designs the process to be decided by the system development flow, and needs the advanced simulation ability.

This kind of Lu Bang designs the flow to be allowed to use the mix power automobile system the performance history conveniently to perform to describe.
The performance weight standard derives by the design standard. The typical mix power automobile design standard will contain certain performance requirements. Cites an example, the automobile usually all must satisfiedly discharge, the performance and the fuel oil efficient request. In these request each kind all became in the design process has had the performance weight standard which analyzed. Will say regarding the present discussion, the fuel oil efficiency serves as the key the performance weight standard.

Uses the fuel oil efficiency weight standard which elects, the design team must choose or the development simulation model in order to prominently affects this standard the design variable. Because Lu Bang designs the flow is possibly the crowded simulation, the model chooses 择要 the optimized simulation precision and the simulation performance.

When develops uses in Lu Bang designs the flow development model time, the design team should use the hardware description language (HDL) to found the model, lets the design team using HDL be able to control the model precision and the performance well, including in different design abstract level foundation model ability. Newly thinks company's MAST language is the automobile profession uses in to mixes the dynamic system modelling the fact standard; VHDL-AMS is the modelling language which another kind may elect, recently already by IEEE standardization. These two languages all obtain the Saber simulator the support.

Confirms the fixed system the work

Once completes to the system modelling, may change the analysis fuel oil efficiency with emphasis, next step is confirms the mix power automobile the fixed fuel oil efficient performance. The fixed analysis demonstration the best situation fuel oil efficiency which designs under the ideal condition. Must use the standard the operating point, the time domain and the frequency range analysis to designs carries on the analysis. The fuel oil efficiency obtains which from the fixed analysis becomes Lu Bang to design in the flow other steps performance data.

Recognition influence performance parameter

The mix power model of motor car should contain the influence fuel oil efficient essential variable. These variables act according to it by the design team to choose to the automobile system knowledge. Once chooses the good variable, the design team must distinguish these to affect the biggest variable to the automobile fuel oil efficiency.

The sector analysis is the analysis affects the biggest parameter to the system the most effective means. Using the sector analysis, may analyze the automobile the fuel oil efficiency the situation which changes along with various systems parameter change. These parameters as well as they to mix the power automobile performance the influence, becomes other design processes the focal point.

According to variable analysis system performance

After has distinguished the essential parameter, next step is inspects these parameters the change to mix the power automobile fuel oil efficient influence. According to this system understanding, the design team has established the essential parameter value scope, and has established the simulation instruction for the scanning entire value scope.

The scanning parameter range of variation is one kind of important ability. The design team must establish the simulator, causes it by a series of circulation way automatic execution, scans the design variable the range of variation. This lets the simulator be able to cover each possibility the parameter combination, enables the design team completely to grasp the fuel oil efficiency the situation which affects. The parameter analysis goal is establishes each essential system parameter the value scope. This kind of value scope then is transformed for uses in the statistical analysis fixed value to add on the tolerance.
Optimization system performance

In this stage, the design team must grasp the system parameter change well to the fuel oil efficient influence, must realize efficiently enhances the fuel oil to compensate the technology, and which group does the determination choose to obtain the best system performance. Next step is the basis all possible design variable value combination, confirms the automobile the fuel oil efficiency.

This uses the statistical analysis realization. According to the parameter analysis result, the design team assigns the tolerance for the system in already the essential parameter which distinguishes. The essential parameter tabulates should include these the parameter which discovered in the sector analysis. Its goal confirms the fuel oil efficiency, because the design variable in the tolerance scope is the stochastic change, and with other parameters in the design combines in together. The final outcome should be the fuel oil efficiency all obtains optimized in the overall system variable width range of variation a mix power automobile.

Appraises the system the pressure and the breakdown pattern

Guarantees the system reliable final step is the analysis to the system module pressure, then, after in the inspection system the essential module expires the phenomenon which occurs.

The pressure analysis uses in to analyze the pressure to mix the power automobile module the influence, the design team the most tremendous pressure rated value function on these modules, and is needing the place reduces the nominal value. This simulator uses this information to determine works the module distance "is biggest" or "reduces the nominal value" to have far? The design team then may need the place takes the correct action.

The breakdown pattern analysis function is confirms the system the performance, because the key module starts to establish as the breakdown pattern. The design team must first choose the fuel oil efficiency survey to be possible to accept the scope. Then, the choice essential module, causes it at analysis period expires, and defines the module the breakdown mechanism.

The breakdown pattern analysis then moves a series of creates chooses the analysis which the module expires. The fuel oil efficiency receives the monitor observation system after the analysis process - even if appears the breakdown - whether continues in the target to carry out. The final outcome is a detailed description module expiration as well as whether through fuel oil efficiency weight standard analysis report.

This article subtotal

The mix power automobile is one kind new also unceasingly evolves, the complex transportation system, it has comprehensively used the machinery, the electricity and the software technology, thus enable the system integration to have the challenge, its also the design process must be much more complex than the traditional automobile. The mix power automobile system the complexity has highly initiated more and more many reliable question. The design team needs one organized design method to solve these systems complex problems, and guarantees satisfies the reliable goal.

Lu Bang designed the method to provide the solution complex system design question system design method. Unifies the Lu stick principle of design and the hypothesized prototype practice, including the modelling and the simulation, entrusts with the design team to optimize the mix power automobile the performance, reliable and the cost powerful tool. In order to establishes Lu Bang in the mix power automobile development project to design the work flow, the design team must use likes newly thinks the company Saber such advanced simulation tool. Using these tools, the design team can analyze and confirm the complex mix power automobile system the performance.