I have 2   equations that must be zero, and 2 ODE's for phi and theta

Vector(2, {(1) = `ϕ`(tau)-1.5*sin(`ϑ`(tau)), (2) = -`ϕ`(tau)^2+1.5*cos(`ϑ`(tau))})

how can i implement this quations with event statment .  this dose't work

event1 := [[`and`(gln[1], gln[2]), halt]]

odeplot_test.mw

maple_event_test.mw

I want to catch the trigger time t[i]

Clutch_Modell.mw

I want to contnue the simulation from the point (time) that the event accure 

how can I do it ?