Hybrid controller test system

Abstract

The invention discloses a testing system of a hybrid power controller. The testing system comprises a tested controller, a small-power test bench and a circuit / signal conversion unit, wherein the small-power test bench comprises a simulation tested three-phase motor, a direct current motor, a position sensor and a control protection module; and the circuit / signal conversion unit comprises a sensor signal detection unit, a sine / cosine conversion module and a signal output interface and is responsible for converting a position sensor signal of the small-power test bench and a signal relevant to a protective signal into the input needed by the tested controller. With the system, a rotating shaft of the motor generates two position signals through driving the position sensor to enter the circuit / signal conversion module so as to generate a sine / cosine signal of the position senor needed by the tested controller; two paths of input signals are stored in a memorizer through the sine / cosine conversion module; the position sensor signal of the small-power test bench is converted into any position sensor signal needed by the tested controller through table lookup; and the position sensor signal is input to the tested controller.

Description

technical field [0001] The invention relates to a laboratory testing device for an automobile controller, which belongs to the technical field of automobile control devices. Background technique [0002] Energy and the environment are closely related to the survival and development of human beings, and the requirements of energy shortage and environmental protection have promoted the development of hybrid electric vehicles. The simplest concept of hybrid power is: equipped with two driving devices (motor and engine) and powered by two energy sources (gasoline and electric energy storage device), through braking energy recovery and controlling the engine in the high-efficiency / low-emission area And other forms to achieve high fuel economy and clean emissions. In a hybrid vehicle, the performance of the motor and the hybrid controller will directly affect the power and fuel economy of the hybrid vehicle. In the controller design stage, it is necessary to continuously test th...

AI Technical Summary

Problems solved by technology

However, because the drive motors used in hybrid vehicles often have high power, voltage, and current, a special high-power, high-current, and high-voltage motor test bench is required for testing. The test preparation time is long, and a special bench test is required. room, there are potential safety hazards during the test, and the disadvantages of high test cost

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