DSP (digital signal processor)-based multi-channel inverter for electric vehicle
A technology of electric vehicles and inverters, which is applied to circuits or fluid pipelines, vehicle components, transportation and packaging, etc., can solve the problems of easy leakage of electricity and water, high cost, complex circuit structure, etc., and achieve low cost and safety The effect of high performance and simple circuit structure
Active Publication Date: 2012-01-04
北京华盛源通科技有限公司
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Problems solved by technology
[0008] The present invention has designed a kind of DSP-based multi-channel inverter for electric vehicles, and the technical problems it solves are (1) the connection of multiple inverters and junction boxes makes the circuit structure relatively complicated and expensive; (2) the connection The increase in components leads to the possibility of multiple failure points, which are prone to electric and water leakage problems
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[0029] Combine below figure 2 with image 3 , To further explain the present invention:
[0030] Such as figure 2 As shown, in order to achieve closed-loop control, the position encoding signal (input from the ABZ terminal), current signal, temperature signal and voltage signal of the automobile motor are collected and input into the first DSP microprocessor 211 at the same time. Specifically, the motor control inverter circuit includes a first DSP microprocessor 211, an IGBT full-bridge inverter circuit 261, a first input buffer circuit 221, and a first output buffer circuit 222; the first DSP microprocessor 211 includes AD input One or more of the terminal, ABZ input terminal, PWM output terminal, CAN communication terminal, SPI interface terminal, and IO interface terminal; wherein, the first input buffer circuit 221 has its input terminal connected to the position encoding signal of the motor, and its output Terminal is connected to the ABZ input terminal; the first outpu...
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The invention relates to a DSP (digital signal processor)-based multi-channel inverter for an electric vehicle. The multi-channel inverter comprises a motor control inverting circuit, an inflating pump control inverting circuit and a power steering pump control inverting circuit, wherein, the three inverting circuits output PWM (pulse width modulation) signals at the same time to respectively control a drive motor, an inflating pump and a power steering pump for the vehicle. The DSP-based multi-channel inverter for the electric vehicle can control the drive motor, the inflating pump and the power steering pump for the vehicle at the same time by adopting a device without distributing wires through a junction box, thus circuit structure is relatively simple and cost is lower.
Description
Technical field [0001] The invention relates to a DSP-based multi-purpose inverter for electric vehicles, in particular to a multi-path inverter capable of simultaneously controlling an automobile motor, an air pump and a power steering pump. Background technique [0002] With the development of the electric vehicle industry, more and more motor controllers, air pump drive inverters and power steering pump drive inverters are applied to electric vehicles. [0003] In the prior art, a wire distribution box is usually used to divide the wires from the battery to the motor controller, the air pump drive inverter, and the power steering pump drive inverter, which requires four separate devices. [0004] Such as figure 1 As shown in the prior art car drive motor, air pump and power steering pump drive connection diagram, the line from the battery first goes to the junction box 10, and after the line is separated, it is connected to the motor driver 11, the inverter 12 and the inverter res...
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IPC IPC(8): B60R16/02
Inventor 杨重山
Owner 北京华盛源通科技有限公司