Electric power steering controller hardware function test board

A technology of electric power steering and hardware functions, which is applied in the direction of vehicle steering/bump performance, etc., can solve the problems of increasing time and equipment cost, idle test equipment and low utilization rate, and achieve the effect of reducing input cost and improving efficiency

Active Publication Date: 2016-07-06
LIANCHUANG AUTOMOBILE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing functional test benches for electric power steering controllers often only test one of the two. When multiple projects are carried out, it often leads to the phenomenon of idle test equipment and low utilization rate, which increases time and equipment costs.

Method used

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  • Electric power steering controller hardware function test board
  • Electric power steering controller hardware function test board
  • Electric power steering controller hardware function test board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052]Electric power steering controller hardware function test bench, such as figure 1 As shown, including the host computer and the simulation signal generation module;

[0053] The controller to be tested is burned into the underlying hardware function test software;

[0054] The upper computer is provided with upper computer measurement and control software;

[0055] The host computer communicates with the controller to be tested, sends test instructions and simulation parameters to the controller to be tested, and receives test results fed back by the controller to be tested;

[0056] The host computer communicates with the simulation signal generation module, and sends simulation parameters to the simulation signal generation module;

[0057] The simulation signal generation module is used to generate a simulation signal according to the simulation parameters and instructions sent by the host computer and output it to the controller to be tested;

[0058] The underlyi...

Embodiment 2

[0062] Based on the first embodiment, the electric power steering controller hardware function test bench further includes a motor load coil simulation module;

[0063] The upper computer communicates with the motor load coil simulation module, and sends a load mode selection instruction to the motor load coil simulation module;

[0064] The motor load coil simulation module uses a three-phase coil to simulate a DC brushed motor load, and uses a two-phase coil to simulate a DC brushless motor load;

[0065] The motor load coil simulation module is used to connect to the controller under test in a three-phase coil mode or a two-phase coil mode according to the load mode selection instruction sent by the host computer.

[0066] In the hardware function test bench of the electric power steering controller of the second embodiment, before testing, the load type of the controller can be selected through the host computer, and the motor load coil simulation module switches the relay...

Embodiment 3

[0068] Based on the second embodiment, the electric power steering controller hardware function test bench further includes a power input control module;

[0069] The upper computer communicates with the power input control module, and sends the power setting parameters to the power input control module;

[0070] The power input control module is used to output the corresponding voltage or current to the controller under test according to the power setting parameters sent by the upper computer.

[0071] Preferably, the power input control module communicates with the upper computer through a serial port communication protocol.

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Abstract

The present invention discloses an electric power steering controller hardware function test board. The electric power steering controller hardware function test board comprises an upper computer and a simulation signal generation module. A controller to be tested is configured to burn in base hardware function test software; the upper computer is provided with upper computer measurement and control software; the upper computer is configured to send test instructions and simulation parameters to the controller to be tested and receive the test results fed back by the controller to be tested; the upper computer is configured to send the simulation parameters to the simulation signal generation module; the simulation signal generation module is configured to generate simulation signals according to the simulation parameters and instructions sent by the upper computer and output the simulation signals to the controller to be tested; the base hardware function test software of the controller to be tested is configured to control the operation of the controller to be tested according to the test instructions and the simulation parameters, collect the electrical function data of each hardware of the controller to be tested and feed back to the upper computer. The electric power steering controller hardware function test board is able to perform individual test of electrical parameters of the hardware module circuit of the electric power steering controller.

Description

technical field [0001] The invention relates to automobile electronic technology, in particular to an electric power steering controller hardware function test platform. Background technique [0002] The current test of the hardware module of the electric power steering system mainly depends on the joint test of the upper-level strategy software and the mechanical steering system. The detection of the electrical parameters and functions of the electric power steering controller hardware module circuit is not independent. Once the joint test occurs After a failure, it is impossible to accurately determine whether the problem is caused by hardware or software. For example, for the detection of the current output characteristics of the controller hardware under different driving conditions, the method adopted in the Chinese patent CN200710190075 is to install the controller in the steering system and apply different steering wheel resistance torques to the steering system to ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/06
Inventor 任夏楠孙宇岳少鹏孙琦
Owner LIANCHUANG AUTOMOBILE ELECTRONICS
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