Test board card for electric control unit of electronic brake booster of electric automobile

Abstract

The invention discloses a test board card for an electronic control unit of an electronic brake booster of an electric automobile. The test board card comprises an MCU module, a CAN communication circuit, a pressure sensor analog output circuit, a pedal displacement sensor analog output circuit, a motor position sensor analog output circuit, a power supply detection circuit, a power supply management circuit, a load module and an EtherCAT communication circuit. The MCU module comprises a CAN transceiver, a DAC converter, a PWM wave generator, an SPI bus and two ADC converters. According to theinvention, the test board card can replace the test bench to carry out function test on the electronic control unit of the electronic brake booster. The test board card acquires data through a plurality of modules, performs different loading and tests through the electronic load and the DC stabilized power supply, and finally displays results through an external system, thereby greatly improvingthe real-time performance of the test and improving the test precision. The test board card is small in size, strong in anti-interference capability, high in integration degree, integrally formed andeasy to produce in batches.

Description

technical field [0001] The invention relates to the technical field of electric vehicle detection, in particular to a test board for an electronic control unit of an electric vehicle electronic brake booster. Background technique [0002] In the field of electric vehicles, the electronic brake booster has been widely used. After the electronic brake booster is installed, the function test of its electronic control unit is required. The current common practice is to build a test bench. [0003] The construction of the test bench is time-consuming, laborious, and bulky; there are a large number of connectors, and the reliability is reduced; after the entire test bench is built, even if all the separation units in the test bench have passed the test, the whole machine needs to be calibrated and the parameters adjusted after the completion of the test bench; sometimes It is also necessary to rewrite the test software, and the whole machine is very cumbersome to build. Cont...

AI Technical Summary

Problems solved by technology

[0003] The construction of the test bench is time-consuming, laborious, and bulky; there are a large number of connectors, and the reliability is reduced; after the entire test bench is built, even if all the separation units in the test bench have passed the test, the whole machine needs to be calibrated and the parameters are adjusted after the whole machine is built; sometimes It is necessary to rewrite the test software, and the whole machine is very cumbersome to build

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