We study late time cosmology in the teleparallel framework using a simple and data driven form of the Hubble rate, Formula: see text. We test nonlinear model Formula: see text. This setup keeps the background fully analytic and gives closed expressions for Formula: see text, Formula: see text, and Formula: see text. We fit the model to 57 observational Hubble measurements and to the Pantheon supernova sample and obtain tight best fit values for Formula: see text and Formula: see text. The model follows the observed rise of Formula: see text up to Formula: see text and matches the distance modulus over the full range. The deceleration parameter shows the expected change of sign. The transition redshift is Formula: see text for the Hubble data and Formula: see text for the Pantheon data. Today we find Formula: see text, which confirms ongoing acceleration. The Om diagnostic is nearly constant near Formula: see text and close to the Formula: see textCDM value. It changes only mildly at higher redshift and shows no unphysical features. The pressure is negative at late times and the energy condition combinations behave in a regular way. This is consistent with an accelerating effective fluid. Information criteria such as AIC and BIC prefer Formula: see textCDM for the same Hubble set, but our teleparallel models still track the data well and allow controlled departures at earlier epochs. Overall, this framework gives a compact and clear description of cosmic acceleration that agrees with present data.
Pawar et al. (2026) studied this question.