  In the Einstein-Cartan gravitational theory with the chameleon field,
changing its mass in dependence of a density of its environment, we analyze the
Friedmann-Einstein equations for the Universe evolution with the expansion
parameter $a$ dependent on time only. We analyze the problem of an
identification of the chameleon field with quintessence, i.e. a canonical
scalar field responsible for dark energy dynamics and for the acceleration of
the Universe expansion. We show that since the cosmological constant, related
to the relic dark energy density, is induced by torsion (Astrophys. J.829, 47
(2016)), the chameleon field may, in principle, possess some properties of
quintessence such as an influence on the dark energy dynamics and the
acceleration of the Universe expansion even on the late-time acceleration, but
it cannot be identified with quintessence to full extent.
