Mea­sure­ments on the valve train / of valve train dynam­ics

The man­u­al eval­u­a­tion of dynam­ic para­me­ters, such as the valve touch­down speed or the time of dynam­ic open­ing and clos­ing, is very labo­ri­ous with a large num­ber of dif­fer­ent oper­at­ing points and takes up a lot of your work­ing time.

The soft­ware mod­ule “Valve Train” was devel­oped with the aim of per­form­ing these eval­u­a­tions auto­mat­i­cal­ly. This not only reduces the eval­u­a­tion time, but also the size of the test matrix and, accord­ing­ly, the util­i­sa­tion time of the test bench. Instead of per­form­ing mea­sure­ments at con­stant, dis­crete speeds, you can now per­form speed ramps.

With the soft­ware mod­ule, the fol­low­ing para­me­ters, among oth­ers, can be eval­u­at­ed: Angu­lar posi­tion of dynam­ic open­ing and clos­ing, touch­down speed, stroke loss, lift-off, valve bounce, mechan­i­cal load on the com­po­nents (sur­face pres­sure dur­ing cup dri­ve), stroke area and valve over­lap.

The soft­ware eval­u­ates pro­gres­sions of sev­er­al sig­nals (stroke, speed and accel­er­a­tion) and auto­mat­i­cal­ly dis­plays them com­pa­ra­bly for each cycle with the cor­re­spond­ing result para­me­ters. For some analy­ses, addi­tion­al eval­u­a­tion meth­ods are stored that are ready-made for the spe­cialised user (e.g. touch­down speed).

In addi­tion to the mul­ti­tude of analy­sis options, you can auto­mat­i­cal­ly record cycles with sig­nal errors and remove them from the eval­u­a­tions.

The appli­ca­tion of the mea­sure­ment tech­nol­o­gy as well as on-site mea­sure­ments, analy­sis and eval­u­a­tion can be com­plete­ly pro­vid­ed and car­ried out by ROTEC ENGI­NEER­ING.

ROTEC ENGI­NEER­ING car­ries out tests on elec­tric as well as hydraulic camshaft phasers. Thus, inter­ac­tions between valve actu­a­tion and tim­ing are record­ed or the func­tion­al behav­iour of the camshaft phasers is explic­it­ly analysed.