Mea­sure­ments on tim­ing dri­ve

Prob­lem: Increase of pol­lu­tant emis­sions

Goal: Pre­cise design of tim­ing dri­ve

The focus of auto­mo­tive devel­op­ment for inter­nal com­bus­tion engines is on reduc­ing of fuel con­sump­tion and pol­lu­tant emis­sion. Tim­ing dri­ves and valve trains also deter­mine the effi­cien­cy of com­bus­tion process­es. They serve to syn­chro­nize the crank­shaft and camshaft to con­trol the open­ing and clos­ing behav­ior of the valves. A dynam­i­cal­ly not opti­mal­ly tuned tim­ing dri­ve reduces the ser­vice life of the com­po­nents and increas­es pol­lu­tant emis­sions.

To exam­ine the tim­ing and valve trains, a mul­ti-chan­nel speed mea­sure­ment is car­ried out on the camshafts and, by means of a rotary encoder, a mea­sure­ment of the posi­tion and rota­tion­al speed on the crank­shaft. In com­bi­na­tion with ana­log mea­sured vari­ables, the mea­sure­ments pro­vide a com­pre­hen­sive over­all pic­ture of the dynam­ic behav­ior of the tim­ing dri­ve under dif­fer­ent load con­di­tions. Ana­log mea­sured vari­ables can be, for exam­ple, the oil pres­sure of the chain ten­sion­er, chain force and accel­er­a­tions on the chain guides. The record­ed mea­sured val­ues are eval­u­at­ed in the time and spec­tral domain.

The record­ed mea­sured val­ues are eval­u­at­ed in the time and spec­tral domain.

Fur­ther­more ROTEC ENGI­NEER­ING pro­vides you with sup­port and tech­ni­cal engi­neer­ing know-how for prob­lems relat­ed to vibra­tion analy­sis of engines, trans­mis­sions and dri­ve trains. With our know-how, we make a valu­able con­tri­bu­tion to your prod­uct in the areas of tim­ing gear val­i­da­tion, valve train opti­miza­tion, clutch design, trans­mis­sion errors (TE), trans­mis­sion opti­miza­tion, oil sup­ply opti­miza­tion, pow­er­train mea­sure­ment and opti­miza­tion, cur­rent and volt­age analy­sis, and the appli­ca­tion of mea­sure­ment tech­nol­o­gy.