The Chern character of $\vartheta$-summable ${\mathcal{C}}_q$-Fredholm modules over locally convex differential graded algebras

Let $\mathrm{\Omega }$ be a locally convex differential graded algebra. We introduce the Chern character of $\vartheta$-summable ${\mathcal{C}}_q$-Fredholm modules over $\mathrm{\Omega }$, generalizing the JLO cocycle to the differential graded setting. This allows treating the case of even $\vartheta$-summable Fredholm modules over $\mathrm{\Omega }$ (which has been previously considered by Güneysu/Ludewig in the context of localization on loop spaces) and odd $\vartheta$-summable Fredholm modules over $\mathrm{\Omega }$ simultaneously. We prove all naturally expected properties of this construction and relate it to the spectral flow in the odd case.