The research on hybrid control systems attracts many scientists both
in computer science and control theories and applications. The study
should be carried out on a general framework abstracted from various
hybrid control systems. This paper analyses the drawbacks of the
present frameworks used by most researchers and proposes a new
framework to overcome these shortcomes. The new framework consists of
a discrete time box, a discrete event box and a digital-symbol
interface. The new framework shows the crucial nature of the hybridity
of time envolving variables and event driven variables in hybrid
control systems. The new framework is easy to integrate the knowledges
of computer science and control theories and applications. Two
examples, a gas burner and an inverse pendulum are given to show the
fitness of the new framework. The design and analysis aspects of
hybrid control systems related to the new framework are also discussed.