CN-121993330-A - Automatic performance detection system, method, equipment and medium for fuel injection electromagnetic valve

CN121993330ACN 121993330 ACN121993330 ACN 121993330ACN-121993330-A

Abstract

The invention provides an automatic detection method for the performance of a fuel injection electromagnetic valve, which comprises a detection supporting module, a gap adjusting module, an electromagnetic force measuring module, a lower computer module and an upper computer module, wherein the detection supporting module comprises a base and is used for bearing and fixing to ensure stable connection among components during measurement, the gap adjusting module comprises a motor, a coupler, a speed reducer, a ball screw pair and a gapless displacement table and is used for adjusting the gap between an armature and an electromagnetic valve, the electromagnetic force measuring module comprises a dial indicator and a force sensor and is used for collecting the value of the force sensor, the value of the dial indicator and the value of output current, the lower computer module comprises a motor driving unit, an electromagnetic valve driving unit and a communication unit and is used for receiving the data of the gap adjusting module, the electromagnetic force measuring module and the upper computer and feeding back the data to the upper computer, and the upper computer module is used for generating a measurement example and feeding the data fed back to the lower computer module. The invention improves the detection efficiency of the fuel injection electromagnetic valve, does not need to use a special driving circuit, and reduces the test cost.

Inventors

LI YONGCONG
Zhao Ruiteng
GU YUANYUAN
ZHANG YU
YANG YUNSONG
ZHU YONG

Assignees

重庆红江机械有限责任公司

Dates

Publication Date: 20260508
Application Date: 20241106

Claims (7)

1. An automatic fuel injection solenoid valve performance detection system, comprising: the detection support module comprises a base and is used for bearing and fixing to ensure stable connection between the components during measurement; The gap adjusting module comprises a motor, a coupler, a speed reducer, a ball screw pair and a gapless displacement table and is used for adjusting the gap between the armature and the electromagnetic valve; the electromagnetic force measurement module comprises a dial indicator and a force transducer and is used for collecting the value of the force transducer, the value of the dial indicator and the value of output current; The lower computer module comprises a motor driving unit, an electromagnetic valve driving unit and a communication unit and is used for receiving data of the gap adjusting module, the electromagnetic force measuring module and the upper computer and feeding back the data to the upper computer; the upper computer module is used for generating a measurement and transmitting the measurement to the lower computer module, and receiving data fed back by the lower computer module.
2. A method of using the fuel injection solenoid performance automatic detection system according to claim 1, comprising: S1, installing and fixing an electromagnetic valve to be tested on a detection supporting module; s2, powering up the lower computer module and performing initialization, powering up the upper computer module, and performing communication connection between the upper computer module and the lower computer module after the initialization; S3, setting test parameters in an upper computer module, inputting the magnitude and time of a driving opening current Open and a holding current hold, inputting the maximum and minimum gaps and the stepping distance between an armature and an electromagnetic valve, generating a first test example according to the gaps and the stepping distances between the armature and the electromagnetic valve, and generating different second test examples by combining the first test example with the magnitude and time of the opening current Open and the holding current hold; S4, the upper computer module issues and executes 0-interval reset operation for the lower computer module; S5, after the reset operation, the upper computer module sends any second test example to the lower computer module, and the lower computer module completes the test according to the second test example and records the acquired value; and S6, repeating the step S5 until all second measurement is completed, drawing a relation diagram among the electromagnetic force, the current and the gap, and ending the detection.
3. The method for automatically detecting the performance of a fuel injection solenoid valve according to claim 2, wherein said mounting and fixing the solenoid valve to be detected to the detection support module includes: The electromagnetic valve is arranged on the base and locked, the corresponding armature is arranged on one side of the force transducer and locked, and the electromagnetic valve is connected with the electromagnetic valve driving unit.
4. The method for automatically detecting the performance of a fuel injection solenoid valve according to claim 2, wherein the host module issues a 0-pitch reset operation to the lower computer module, comprising: And after receiving the 0-space resetting operation instruction, the lower computer module controls the motor driving unit to drive the motor to rotate forward, and the gap adjusting module drives the armature to be close to the electromagnet until the force transducer locks the motor when the reading value of the force transducer is changed from 0 to a positive value, and simultaneously, the dial indicator is set to zero.
5. The method for automatically detecting the performance of the fuel injection electromagnetic valve according to claim 2, wherein after the reset operation, the upper computer module sends any second test example to the lower computer module, and the lower computer module completes the test according to the second test example and records the acquired value, comprising: s501, the upper computer module sends any second test case to the lower computer module; S502, the lower computer module drives the motor driving unit to realize motor reverse rotation, and the gap adjusting module drives the armature to be far away from the electromagnetic valve until the reading value of the dial indicator reaches a set value, and the motor is immediately locked; S503, the lower computer module drives the electromagnetic valve driving unit to realize opening and closing of the electromagnetic valve, records the values of current and force when the electromagnetic valve is opened and closed, and feeds the recorded values back to the upper computer module.
6. An electronic device comprising a processor, a storage medium, and a computer program stored in the storage medium, wherein the computer program when executed by the processor implements the fuel injection solenoid valve performance automatic detection method of any one of claims 2 to 5.
7. A computer-readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the fuel injection solenoid valve performance automatic detection method according to any one of claims 2 to 5.

Description

Automatic performance detection system, method, equipment and medium for fuel injection electromagnetic valve Technical Field The invention relates to the technical field of fuel injection electromagnetic valves, in particular to a system, a method, equipment and a medium for automatically detecting the performance of a fuel injection electromagnetic valve. Background With the upgrade of the international and domestic emission regulation requirements, the novel and green fuel engine technology in the world is rapidly developed, and the fuel injection electromagnetic valve is used as a core component for fuel injection control, receives a driving instruction of an ECU controller, controls the moment and the injection quantity of fuel injection, directly influences the work and the emission of the engine, and the requirements are also increased, so that the development and the manufacture of the electromagnetic valve suitable for different fuel types of engines are urgent. The fuel injection electromagnetic valve is different from the electromagnetic valve in the general automatic control field, the working period (from opening to closing) is usually between 1 millisecond and 5 milliseconds, the response speed is in microsecond level, the response speed of a common electromagnetic valve is usually tens of milliseconds, the fuel injection electromagnetic valve is more complex to drive than the electromagnetic valve in the general automatic control field, a special driving circuit is needed, namely, a coil is quickly electrified by high current to generate attractive force to pull an armature, a valve core is opened to enable fuel to pass through, then the attractive force is maintained by lower current to keep the armature open, finally, the current is quickly cut off and the fuel is cut off, the current driving mode and the current are respectively and directly influenced by the time and the gap of the armature, and meanwhile, the device selection and the power consumption of the control circuit are also influenced, and the control strategy of an engine is also influenced. Therefore, there is currently a lack of means to enable accurate performance detection for fuel injector solenoid valves. Disclosure of Invention Aiming at the problems in the prior art, the invention provides an automatic detection system, an automatic detection method, automatic detection equipment and an automatic detection medium for the performance of a fuel injection electromagnetic valve, so as to solve the technical problem that the prior art lacks a means for accurately detecting the performance of the fuel injection electromagnetic valve. The invention provides an automatic performance detection system of a fuel injection electromagnetic valve, which comprises: the detection support module comprises a base and is used for bearing and fixing to ensure stable connection between the components during measurement; The gap adjusting module comprises a motor, a coupler, a speed reducer, a ball screw pair and a gapless displacement table and is used for adjusting the gap between the armature and the electromagnetic valve; the electromagnetic force measurement module comprises a dial indicator and a force transducer and is used for collecting the value of the force transducer, the value of the dial indicator and the value of output current; The lower computer module comprises a motor driving unit, an electromagnetic valve driving unit and a communication unit and is used for receiving data of the gap adjusting module, the electromagnetic force measuring module and the upper computer and feeding back the data to the upper computer; the upper computer module is used for generating a measurement and transmitting the measurement to the lower computer module, and receiving data fed back by the lower computer module. The invention also provides a fuel injection electromagnetic valve performance automatic detection method, which comprises the following steps: S1, installing and fixing an electromagnetic valve to be tested on a detection supporting module; s2, powering up the lower computer module and performing initialization, powering up the upper computer module, and performing communication connection between the upper computer module and the lower computer module after the initialization; S3, setting test parameters in an upper computer module, inputting the magnitude and time of a driving opening current Open and a holding current hold, inputting the maximum and minimum gaps and the stepping distance between an armature and an electromagnetic valve, generating a first test example according to the gaps and the stepping distances between the armature and the electromagnetic valve, and generating different second test examples by combining the first test example with the magnitude and time of the opening current Open and the holding current hold; S4, the upper computer module issues and executes 0-interval reset operation for the lower comput