Off-line detection device and detection method of anti-lock brake system electronic control unit

Abstract

The invention discloses an off-line detection device and an off-line detection method of an anti-lock brake system electronic control unit. The off-line detection device comprises a computer, an off-line detection software module which is arranged in the computer, an integrated function circuit board and a direct current voltage stabilizing power supply, wherein the function circuit board is connected with the detected anti-lock brake system electronic control unit and the computer through a control area network (CAN) bus and a K line; and the off-line detection software module is connected with the integrated function circuit board through a serial port. During off-line detection of different types of anti-lock brake system electronic control unit products, determination data of off-line detection software are modified, and novel off-line testing equipment is not required to be redeveloped. The invention has the advantages of high expandability, simple structure, high intuitiveness, high practicability, effective failure positioning capacity, high system traceability and the like. Product information is recorded, and unqualified electronic control unit products are effectively searched and traced.

Description

technical field [0001] The invention belongs to the technical field of manufacture of brake system controller off-line detection equipment, and in particular relates to an anti-lock braking system controller off-line detection device and detection method. Background technique [0002] At present, in the field of automotive anti-lock braking system (ABS) controller (ECU) manufacturing technology, the equipment and detection methods for the off-line detection of the controller are mainly to conduct a complete inspection of the controller product before it goes off-line. Detection is used to determine whether there are potential faults in the electronic control part. [0003] In the prior art, the FCT (Functional Circuit Test) function test method is usually adopted. In a simulated operating environment, the inspectors test various input and output functions according to the detection equipment, so as to judge whether the controller function is good. The main idea of ​​this ki...

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Problems solved by technology

[0011] The technical problem to be solved by the present invention is that in the prior art, by applying various prescribed input signal combinations to the input port and detecting the response signal of the output port, the requirements for the design of the hardware circuit board are extremely high; the versatility is poor; the device Specialization, long development cycle; lack of fault location capability, at the same time, it is impossible to test the potential faults of the electronic control part of the controller product, and cannot reflect the functions of many peripheral circuits of the controller, which does not meet the anti-lock braking system controller off-line Due to technical problems such as the inability to record product information and the inability to effectively query and track unqualified controller products due to testing requirements, a device and method for offline detection of anti-lock braking system controllers are provided.

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