Design On Fault-tolerant And Redundancy Of Electronic Speed Governer

Counter attach much more importance to the reliability of electronic speed governer which was accounted for Disel kerner than others .The paper studies the project of improving the reliability of electronic speed governer by using the Dual CPU Hot-redundancy technology. We implement the Dual CPU Hot-redundancy technology into the electronic speed governer which based on DT196 electronic speed governer. The reliability of electronic speed governer can be improved rapidly only if we increase a department hardware and software by the Dual CPU Hot-redundancy technology. The method can be used for many electronic speed governer easily. The Dual CPU Hot-redundancy technology became a method to improve the reliability of electronic speed governer.Firstly, we complete the design of the Dual CPU Hot-redundancy Electronic speed governer project by the comparison of fault-tolerant projects.Secondly, the hardware design of Dual CPU Hot-redundancy is completed with in this paper, which is based on the speed governer project. The hardware includes communication modules and bus switch electric circuit.Thirdly, the software design of Dual CPU Hot-redundancy is completed with in this paper, which is based on the speed governer e project and hardware.Finally ,this paper theoretically analyzes the reliability of the duplex system .The calculation proves that fault—technique really can improve the reliability of the whole system.