Measurement of the time of a signal

Hello,

i need some help by using Simulink ! I am working with driving cycle and i want to classify them.

The problem that i have by classifying is: in one driving cycle, i can have one OR many driving behavior ( urban AND rural for example ) !

     time (s)            0  10  20  30  40  50  60  70  80
Velocity (km/h)          0  45  55  120 120 30  30  25  0

For the classification you can assume that:

 Urban velocity:  0 - 50 km/h

 Rural velocity: 51 - 100 km/h

 highway: x > 100km/h

Question: which function / bloc can detect multiple behavior / signals for one driving cycle ?

How can i measure the time of each classification ( case with multiple driving behavior )by using Simulink?

for given cycle we have nearly:

 urban = 25 s + 30s
 highway= 25s

thanks

[Jan]

I still do not understand the question. The fact that your different threads contains slightly different information increases my confusion.

[Jan]

I still do not understand the question. The fact that your different threads contains slightly different information increases my confusion.

Does t=[0, 10] and velocity=[0, 45] mean, that the velocity is 0 until the time 10 (in seconds?) and that it is 45 suddenly? Does e.g. the interval [10 20] belong to the "rural" classification, perhaps partially?

This is important, but not explained yet. How did you calculate the "nearly" classification?

[alexandre]

1/

t=[0, 10] and velocity=[0, 45] => that means that the velocity increase until 45km/h in 10 seconds ! The velocity increase linearly ( LOOKUP TABLE )

2/

time [10 20 ], you got it... this interval of time belong between Urban & Rural ! And i want to know if there is a possibility to get the Urban-time and Rural-time by working with a embedded function or bloc

3/

My given cycle is just an example( US-Hyzem driving cycle ) , to explain how a cycle looks ( driving cycle = time + velocity )

Urban= ...s+...s and highway = ...s was just an aproximation ... i didn´t calculate it .

p.s: my english is not the best, am a french-talker... i beg your forgivness

Answer 1

[alexandre]

hello simon,

sorry for the confusion but fact is that i have two clompletly different question:

1- calculate the driving average velocity ( by filtering the time where the velocity is equal to zero )

2- (This thread) how can measure the time where i signal activ is, while by driving there can be many driving behavior, and i want to know long> there take.

i have really big interess in Simulink but am a beginner :((

thx