IGBT intelligent driving module for new energy automobile and control method thereof

Abstract

The invention discloses an insulated gate bipolar transistor (IGBT) intelligent driving module for a new energy automobile. The IGBT intelligent driving module comprises a controller ECU, a vehicle-mounted controller, an IGBT power module, an IGBT driving circuit and a driving power supply, wherein an output end of the controller ECU is connected with an input end of the vehicle-mounted controller; the output end of the vehicle-mounted controller is connected with the IGBT power module through the IGBT driving circuit; the IGBT power module is connected with the input end of the controller ECU; the IGBT driving circuit is connected with the controller ECU; and the control method thereof comprises the steps of detecting bus voltage, detecting driving voltage and detecting module temperature. The module and the method have the advantages that: 1, a singlechip is introduced to serve as a substituent for a digital AD converting circuit, and the cost of the driving module is reduced by means of the characteristics of simplicity, convenience and a plurality of interfaces; and 2, the temperature signal of the power module can be conveniently acquired, and meanwhile, the sampling of the driving voltage is realized and the system is simplified.

Description

technical field [0001] The invention relates to the technical field of IGBT power modules, in particular to an IGBT intelligent drive module for new energy vehicles and a control method thereof. Background technique [0002] At present, the existing module drive circuits on the market are mainly driven by the drive chip to drive the insulated gate bipolar transistor (IGBT) module, and at the same time equipped with a digital AD converter to collect the temperature of the module and play a role in protecting the module. In this way, a digital DA conversion chip and corresponding peripheral circuits are required for each temperature channel, which increases the cost of the entire driving module. At the same time, these driving modules do not take into account the collection and detection of the driving voltage. When the driving voltage fluctuates, the entire module may fail to work normally or even be damaged. Contents of the invention [0003] The technical problem to be s...

AI Technical Summary

Problems solved by technology

In this way, each temperature requires a digital DA conversion chip and corresponding peripheral circuits, which increases the cost of the entire drive module

At the same time, these drive modules do not take into account the collection and detection of the drive voltage. When the drive voltage fluctuates, the entire module may not work properly or even be damaged.

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