Simulink Transmission Shift Map

Question

MATLAB_Soldier 2022-9-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1813540-simulink-transmission-shift-map

评论： Fangjun Jiang 2022-11-11

Hello,

I am trying to create a system that would decide if the vehicle needs to shift up or down based on the vehicle speed gradient, the current speed and the following shift map:

I have come up with a simple method that would use a lookup table to decide on the appropriate gear selection. However, I am not sure if this is the best way to go about it. I know that it is possible to do the whole process using StateFlow but unfortunately, it is not available for me. Therefore, I need figure out how to make it work without stateflow.

Is it possible to do it with a lookup table or do you think there is a better way to do it?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Fangjun Jiang 2022-9-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1813540-simulink-transmission-shift-map#answer_1063305

It is possible and you are almost there.

You have the logic to check whether the speed is increasing (for up shipt) or else (for down shift). You only need a 1-D lookup table block with one input, which is the vehicle speed. The vehicle speed threshold would be the index. The gear number would be the output.

You will need two 1-D lookup tables (one for up shift and one for down shift). Use a Switch block to switch the output. Or Use a Merge block (which is more efficient but requires Enabled sub-system).