Source for Application of CHE100 Inverter to Oil Pump Test Bench manufacturers at Shenzhen INVT Electric Co., Ltd.. Find a quality supplier or manufacturer of Application of CHE100 Inverter to Oil Pump Test Bench from China

Injection pump is a key part of a diesel internal-combustion engine. It distributes the oil input of the individual combustion cylinders in a uniform manner according to the rotation speed of the diesel engine, and adjusts the rotation angle of the crankshaft to inject oil. Its quality has direct influence upon the overall performance of the diesel combustion engine. A motor is the power source of an injection pump test bench. The accuracy in controlling the rotation speed of the motor is the precondition for ensuring the performance of the injection pump.

The test bench for the injection pump of an internal combustion engine is mainly composed of the following parts: Asynchronous motor drive unit, fuel oil circuit and its adjustment unit, injection oil storage and measuring unit and computer measuring and control unit. The basic structure of the entire test system is as shown in Figure 21.

 

 

 

 

Figure 21 Basic structure of automatic test bench

1)   Control the forward/reverse rotation and stop of the motor;

2)   Control the rotation speed of the motor, involving two methods: ten pre-set rotation speeds, and free speed regulation;

Control mode: The controller inputs 0~10V analog input signal to the AI1 interface of the inverter, and accordingly outputs “0~ the maximum rotation speed of the motor”. The RS485 interface may also be used to set the frequency in communication mode. The system requires that the drive unit should have very high steady-state accuracy in certain range, quicker response speed, and small overshoot. The CHE vector inverter adopts the digital PI algorithm to simulate the slip regulator, to implement the requirement of no steady-state error.

P0.00:0         Vector control without PG

P0.01:1         Terminal command channel

P0.03:1         AI1 setting (this parameter is set to 6, frequency setting may be implemented in remote communication mode);

P5.00:1         Forward operation of terminal S1;

P5.01:2         Reverse operation of terminal S2;

P5.07, P5.08, P5.09, P5.10: Set the correspondence relationship between the AI curve and frequency curve according to actual situations;

P5.11: Set appropriate AI filtering time to efficiently reduce rotation speed fluctuation caused by AI fluctuation;

For the setting of other functional parameters, refer to the User Manual for CHE Vector Inverters.

At present, the CHE series vector inverters have been successfully applied to many injection pump test bench manufacturers in Tai’an of Shandong Province. The stability of their speed regulation performance and the reliability of the product quality have been widely recognized by the manufacturers.