Novel alternating current asynchronous motor controller for pure electric car

• Main Authors: CHEN PING, ZHENG SHUGUANG, PENG CHAOZHAO, WANG PENG, YUAN WEIRONG, TANG XIAOCHUN
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2012
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention discloses a novel alternating current asynchronous motor controller for a pure electric car. The novel alternating current asynchronous motor controller comprises a control chip, a bus driver, a drive circuit, a three-phase inverter circuit, a motor, an overvoltage signal generating circuit, an over-current signal generating circuit, an over-temperature signal generating circuit, an IGBT (insulated gate bipolar transistor) fault signal, an AND gate and a sensor group. The sensor group comprises one or more speed sensors, one or more voltage sensors, one or more temperature sensors and one or more current sensors. The invention provides the novel alternating current asynchronous motor controller for the pure electric car for achieving over-voltage, over-current, over-temperature and IGBT fault protection function on hardware, changes from the hardware, and achieves the function of adopting software to process in the prior art through hardware so as to solve the problems of processing delay, prote