Matlab Simulink Modeling and architecture level 7.3

 

Level-24-3.1: in Matlab-simulink

24-3.2: in Automotive Matlab-simulink

24-3.3: in complex technologies and practices use :

Developpement in Matlab Simulink leveling from 2016;

Also designing leveling concepts for engineering;

Advanced leveling automatic control systems,

Specially in the vehicule fields, automotic control systems, in automotive systems and concepts, Epowertrain, modeling , etc. ,.

A+++Modeling an Automatic Transmission Controller

Fig-1

B+Here we will make a model of an automatic controller Fig-1:

a-Vehicle

b-Transmission

c-Shift logical control module part

d-Engine RPM part module component and parts

e-Manœuvres GUI part

f-Plot results of 3 output controlledsignals (Throttle(qi), Engine RPM(Vi), and Vehicle Speed(Qxi))

g-Complete controlled system of automatictransmitted in/out signals vehicle modules (parts, VTD,...).

                                                   Fig-2

                       

Fig-3

C+Modeling an Automatic Transmission Controller

Open Example

*This example shows how to model an automotivedrivetrainwith Simulink®.

**Stateflow® enhances the Simulink model with its representation of the transmission control logic concepts (forming nodal parts, concepts of IO, Concepts of UP/Down streams,...)-A and control modules (control nodal engineering, control of blackbody spots,...)-AA and units applications(+++)A+3.

***Simulink provides a powerful environment for the modeling and simulation of dynamic systems(cars(40% today) – trains(20 to 30%) and planes(8%)) and processes(+++4).

*In many systems, though, supervisory functions like changing modes or invoking new gain schedules (gainQSC) must respond to events that may occur and conditions that develop over time.

**In many systems we can add losses(LossesQSC), parasitics, critical pathes and critical topologies of control in each system depending on nomber of parameters and testing

experiences.

***As a result, the environment requires a language capable of managing these multiple modes and developing conditions.

*In the following example, Stateflow shows its strength in this capacity by performing the function of gear selection(QSCI) in an automatic transmission.

**This function is combined with the drive traind ynamics in a natural and intuitive manner by incorporating a Stateflow block in the Simulink block diagram[tool boxes modeling and standards ASPICE.4.03].

D+Maneuvers GUI part Fig-2, Fig-3, Fig-4, Fig-5

a- Variation in manevres between 4 cases passing manevre, gradual acceleration, hard breaking and

coasting.

b-Each had a limit charcheteristics concerning throttle(iiV), speed(iiVi) and breaking.

E+ Cylendeur cars and auto.

F+ Engine part modeling systems (Koncepten und methoden die autos hybride-elektisch) consisting of:

1-Torque parameters

2-Throttle component

3-Engine tourque 2 dimension graph, nowyoucanchangedin 3 dimension modelinggraphicalparameters and fonctions.

4-Amplifier

5-Integration part

6-Feedback coefficients

7-Diffrentiator