Integrated motor control and charge device for hybrid electric bus

Abstract

The invention relates to an integrated motor control and charge device for a hybrid electric bus, comprising a main current transformer, a sub current transformer, a main control unit, a charge interface, a power supply control unit, an electric accessory interface and a charge / drive switchover unit, wherein the alternating-current side of the main current transformer is connected with the charge interface via a charge contactor, and connected with a main motor via a drive contactor; the direct-current side of the main current transformer is serially connected with a switch circuit used for being connected with an onboard energy device; the direct-current side of the sub current transformer is correspondingly connected with the electric accessory interface formed on the device and the direct-current side of the main current transformer respectively; the alternating-current side of the sub current transformer is used for being connected with a power generator; the main control unit is in control connection with the main current transformer and the sub current transformer; the charge / drive switchover unit is used for switchover between charge and drive; and the power supply control unit is used for controlling the switch circuit to perform pre-charge and power-on actions on the device. Via the device, the use quantity of high-voltage wiring harnesses is reduced, the heat productivity of the components is reduced, the cost of the whole bus is decreased, and the valid space of the whole bus is increased.

Description

technical field [0001] The invention relates to an integrated motor control and charging device for a hybrid electric passenger car. Background technique [0002] In the new energy hybrid electric bus, the motor controller is the key component that converts the DC power of the battery and the alternating current of the motor to realize the motor-driven operation. . [0003] The entire hybrid electric motor system often includes electric accessory systems such as the vehicle control system, on-board energy system, main drive motor system, starter generator system, high-voltage power distribution system, and on-board charging system. The high-voltage parts of the system, such as the main motor, starter generator, and on-board charging system, need to be connected with the on-board energy by means of high-voltage wiring harnesses and high-voltage power distribution systems to achieve work needs. With so many high-voltage accessories, the wiring harness brings many problems to...

AI Technical Summary

Problems solved by technology

Most of the current practice is to piece together the parts and components with simple functions, and choose specially treated high-voltage wire harnesses. Although this can reduce the interference problem of the whole vehicle to a certain extent, it undoubtedly adds a lot of cost to the whole vehicle and reduces the The effective space of the vehicle

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