ELECTRIC VEHICLE CONTROLLER

• Main Author: IWABORI MICHIO
• Format: Patent
• Language: English; Japanese
• Published: 18.01.2018
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL OR REGULATION THEREOF; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide an electric vehicle controller which improves torque imbalance of a plurality of induction motors, prevents idling and sliding, and improves acceleration/deceleration performance and ride quality.SOLUTION: An electric vehicle controller for driving wheels of an electric vehicle by a plurality of induction motors 5A, 5B connected in parallel to each other on an output side of one inverter 3 comprises: means 7-9 for generating a torque command value and a magnetic flux command value according to a rotation speed equivalent value and an operation command of the motor; and control calculation means 12 for generating an output voltage command value of the inverter 3 using the torque command value, the magnetic flux command value, the rotation speed equivalent value, and currents of the induction motors 5A, 5B. When driving the electric vehicle while reducing the torque command value to be smaller than the maximum torque command value, the magnetic flux command value is reduced to be smaller than the magnetic flux command value at the maximum torque command value and is given to the control calculation means 12.SELECTED DRAWING: Figure 1 【課題】複数台の誘導電動機のトルク・アンバランスを改善し、空転や滑走の防止、加減速性能や乗り心地の改善を図った電気車制御装置を提供する。【解決手段】１台のインバータ３の出力側に互いに並列に接続された複数台の誘導電動機５Ａ，５Ｂにより電気車の車輪を駆動するための電気車制御装置であって、電動機の回転速度相当値と運転指令とに応じてトルク指令値及び磁束指令値を生成する手段７〜９と、前記トルク指令値、前記磁束指令値、前記回転速度相当値、及び、誘導電動機５Ａ，５Ｂの電流を用いてインバータ３の出力電圧指令値を生成する制御演算手段１２と、を備えた電気車制御装置において、トルク指令値を最大トルク指令値より低減して運転する場合に、磁束指令値を最大トルク指令値における磁束指令値よりも低減して制御演算手段１２に与える。【選択図】図１