The invention relates to an
electric vehicle controller and a soft configuration method; the
electric vehicle controller is composed of a
single chip, a power supply interface, an external
signal input circuit, a work state output circuit, a drive circuit, a power tube switch and a current feedback circuit; the
single chip is connected with the external
signal input circuit, the work state output circuit and the drive circuit respectively through I / O interfaces; the drive circuit, the power tube switch and the current feedback circuit are sequentially connected with each other; the output end of the current feedback circuit is connected with the I / O interface of the
single chip. The invention is technically characterized in that the single
chip is a single
chip with a built-in E2PROM; the single
chip is connected with a host controlling
machine through the
communication interface of the single chip. Through soft configuration, the invention can flexibly modify the parameters of
electric vehicle controllers or
upgrade the programs, so as to enhance the functions of electric vehicle controllers, improve the
standardization level and the production efficiency of electric vehicle controllers, and facilitate the
technical management and product maintenance of electric vehicle controllers.