Three-phase brushless DC motor control device for electric vehicles

Abstract

The invention discloses a three-phase brushless direct-current motor control device for an electric vehicle. The device comprises an upper computer, a serial port communication module, a wireless Bluetooth module, a switching module, a control processing module and a power driving module; the serial port communication module is used for receiving a control instruction sent by the upper computer and forwarding the control instruction to the control processing module; the wireless Bluetooth module comprises a first wireless Bluetooth module and a second wireless Bluetooth module, wherein the first wireless Bluetooth module communicates with the upper computer; the second wireless Bluetooth module communicates with the control processing module; the control processing module is connected with the power driving module and used for sending pulse width modulation signals to the power driving module after the control instruction is received; and the power driving module is connected with a three-phase brushless direct-current motor and used for reading the pulse width modulation signals and driving the three-phase brushless direct-current motor, so that the electric vehicle assembled with the three-phase brushless direct-current motor executes the operations of starting, advancing, retreating, braking, cruising, steering, whistling, vehicle lamp control and remote control.

Description

technical field [0001] The invention relates to the fields of digital electronics technology, analog electronics technology and power electronics technology, and in particular to a three-phase brushless DC motor control device, which is suitable for electric vehicles. Background technique [0002] As a green sunrise industry, electric vehicles have been developed in my country for ten years, especially in electric bicycles and electric vehicles. By the end of 2010, my country's electric bicycles had reached 120 million, and the annual growth rate was 30%. In terms of electric vehicles, my country's planned investment in new energy vehicles in the next 10 years will reach 100 billion yuan, and the sales volume will rank among the top in the world. [0003] With the vigorous development of the sunrise industry of electric vehicles, the application of control devices for electric vehicles is becoming more and more extensive. The currently known three-phase brushless DC motor c...

AI Technical Summary

Problems solved by technology

[0003] With the vigorous development of the sunrise industry of electric vehicles, the application of control devices for electric vehicles is becoming more and more extensive. The currently known three-phase brushless DC motor control devices suitable for electric vehicles have the following shortcomings: 1) use The connector is relatively large and has a large load; 2) It does not have the shockproof requirements under high power conditions, so that it is easy to cause damage to components; 3) It cannot provide the cruise function of the graphical interface; 4) The existing motor control device uses Traditional twist handlebars to control the direction of electric vehicles

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