This standard specifies the test equipment, methods and conditions for magneto ignition systems. This standard is applicable to the testing of various types of magneto ignition systems. JB/T 6730-1993 Test method for magneto ignition system JB/T6730-1993 Standard download and decompression password: www.bzxz.net

J92 | | tt | | JB | tt | Motor ignition system
1 Subject content and scope of application
Test methods
This standard specifies the test equipment, methods and conditions for the magneto ignition system (hereinafter referred to as the ignition system). This standard is applicable to the testing of various types of magneto ignition systems. 2 Reference standards
GB11476
GB11477
ZBT36002
ZBJ91003
ZB J94 011.1
Technical conditions of capacitor discharge electronic switch for magneto Test methods for capacitive discharge electronic switches for magnetos Test methods for ignition systems
Technical conditions for magnetos
Technical conditions for ignition coils for magnetos
Test methods for ignition wire diagrams for magnetos| | tt | Using the magneto reliability assessment and assessment method, the ignition system described in this standard includes the following parts (should be connected according to the circuit shown in Figure 1): 3.1 The flywheel and base plate assembly (or rotor and stator) provide ignition power, contact switch or A device that charges and triggers pulses. 3.2 Ignition coil (internal or external) refers to an inductive coil with an open magnetic circuit or a closed magnetic circuit. 3.3 Electronic ignition (electronic switch)
is divided into two types: capacitive discharge type and inductive type. 3.4 High-voltage ignition wire
The high-voltage ignition wire from the ignition coil to the spark gap is determined by both the user and the manufacturer. Xindian battery diagram 1P
P.
1 test level induced voltage
Dianyi connection
approximate input current
?||tt| |P | Line surface R
Spark cough
Re
Spark voltage
p
JB/T6730-93
武电||tt ||Implemented on 1994-01-01
1
Magnetic motor
Average electricity charges
@
?
@| | tt | | JB/T673093 | Continued
b
Wire circumference
P
Figure 1 Magneto ignition system test circuit
P, a current probe, amplifier and oscilloscope, P, - Voltage measurement oscilloscope; P, - AC ammeter; P, - AC voltmeter; P, - tachometer: C, ~ load electric guest: R - load resistor; Ral - voltage divider (high voltage probe >; Re - divided voltage Device (high-voltage operating head): R, a central or distributed Tuni resistance (the actual value of the impedance is determined by negotiation between the manufacturer and the user) 4 Ignition system load
4.1 Three-pin discharger|| tt||The load of the ignition system under test is a three-pin arrester spark gap device (as shown in Figure 1a). The spark gap can be adjusted. In addition to the three-pin pole pitch specified by the existing standards, the gap is adjusted to 5.5±0.1mm ( Corresponding to 12kV). 4.2 Capacitive and resistive load
The ignition system under test is connected to a section of high-voltage ignition wire. As a shunt load resistor of the ignition system under test, a 10W, 1Mn non-inductive resistor with a low transmission constant is also required. The device is used to simulate spark plugs contaminated by lead and carbon, as shown in Figure 1b. When measuring the total distributed capacitance of the high-voltage line, the spark plug gap and resistor R (if it is a centralized parameter resistor) should all be short. Connect and remove the high-voltage ignition wire from the ignition coil
5 Test content
5.1 Main parameter test of the ignition system
5.1.1 Secondary effective voltage||tt| |The basic test item of the magnetic motor ignition system is to compare the measured secondary effective voltage value with the ignition voltage value required by the spark plug specified by the gasoline engine to determine whether the ignition system is suitable (see Figure 2a). Electric current (or conduction current)
The power-off current is suitable for inductive ignition systems, and its test purpose is to determine the input energy of the ignition coil (see Figure 2b); the conduction current is suitable for capacitor discharge ignition systems (See Figure 2c) 5.1.3 Average input current
This test is to determine the average current value consumed by the magneto ignition system. 5.1.4 Spark voltage and spark current
This is necessary data when calculating spark energy. 5.1.5 Spark duration
The test results of this item indicate the spark ignition ability under critical fuel conditions within a certain range, and can also indicate the degree to which the spark plug electrode will be electrically corroded (see Figure 2d for the inductance type) , capacitor discharge type (see Figure 2e). Since these two issues are relatively complex, they need to be judged based on certain experience.
5.1.6 Maximum spark current
2
JB/T 6730-93
This value refers to the secondary ignition coil when the spark gap is broken down. The initial instantaneous value of current when the winding generates spark discharge through the spark gap (see Figure 2d for electric type and Figure 2e for capacitive discharge type). 5.1.7 Spark energy calculation
The spark energy value is the integral of the product of the spark current value and the spark voltage value within the spark duration. It can also be used to calculate the current off-time value, voltage time value and spark duration at a certain moment. Simple product instead. As for when to take the value, it should be determined according to different systems and conditions.
5.1.8 Ignition wire and secondary voltage rise time This test is to determine the ability of the ignition system to carry spark plug load. The shorter the voltage rise time, the smaller the loss through each branch, and the energy used for ignition will be The more
In order to facilitate the comparison of ignition systems, the specified rise time refers to the time when the secondary voltage goes from -1.5 to -15kV, or it can be determined by the user and the manufacturer through negotiation.
5.1.9 Primary induced voltage of ignition wire diagram
This value is very useful for understanding the life of the contact. At the same time, according to this value, it can also be determined that the quality body tube in the inductive energy storage ignition system should have pressure resistance (see Figure 2b).
This test does not apply to capacitive discharge ignition systems. 5.1.10 Ignition limit load resistor
The shunt load characteristics of the ignition system are represented by the ignition limit load resistor. The load resistance that reduces the system secondary voltage to -15kV is the ignition limit load resistance, represented by the symbol Risv. The test conditions are: capacitive load: 50pF; rotation speed: 2000r/min ±2%. Rise time
1.5kV
J5K
d
Spark voltage
Spark power
Spark duration
Yin Xiangying Voltage
Peak Primary Voltage
Front Value Primary Voltage
Hua Voltage
Dahua Electric
Dalong Holding Domain Shirun| |tt|| Figure 2 Ignition system waveform (typical waveform displayed by the monitor) Note: The abscissa of a, c, d, and e is ustb, the abscissa is msi, and the ordinate is the diagram. 5.2 Type test of magneto
The type test of magneto shall be carried out in accordance with the regulations and requirements of ZBJ91003. 5.3 Quality grading test of magneto products
The quality grading test of motorcycle micromotor products shall be carried out in accordance with the regulations and requirements of MZ112.1 and MZ112.2. 3
JB/T6730-93
The product quality grading test of other magnetic motors shall be carried out in accordance with the regulations and requirements of the relevant industry internal standards. 5.4 Type test of ignition coil
The type test of the ignition wire diagram for magneto shall be carried out in accordance with the regulations and requirements of ZBJ94011.1~94011.2. 5.5 Quality grading test of ignition coil products. The quality grading test of ignition coil products for magneto shall be carried out in accordance with the regulations and requirements of the relevant industry internal standards. 5.6 Type test of electronic ignition
The type test of electronic ignition shall be carried out in accordance with the regulations and requirements of GB11476~11477. 6 Requirements for test equipment
6.1 For the "main parameter test" specified in Article 5.1, 6.1.1 The maximum rise time of the oscilloscope is 0.03μs, the minimum bandwidth is 10MHz, and the measurement base instability is less than 3% (P1, and P2). 6.1.2 The input capacitance of the voltage divider (high voltage probe) is not greater than 5pF, and the input resistance is not less than 100Ma. The voltage divider (see Ra and R4 in Figure 1) and the oscilloscope are used to measure the effective voltage rise time and spark duration. To measure the spark current, as shown in Figure 1a, a current probe must be used.
6.1.3 Use the oscilloscope described in 6.1.1 to measure the primary induced voltage. 6.1.4 The magneto test bench and the attached tachometer shall meet the following conditions: B.
The coaxiality between the drive shaft and the tachometer is within 0.1mm: A stepless speed regulation device should be used, with a speed regulation range of 100r/min to the maximum speed: b.
The speed stability from 200 to 800r/min is 5%; e.
d, the speed stability from 1000r/min to the maximum speed is 2%. 6.1.5 The indication accuracy of the tachometer is within 1%. 6.2 For magneto, ignition line diagram, electronic ignition product type test and quality grading test, the test equipment used shall be used in accordance with the provisions and requirements of the corresponding relevant standards. 7 Test method
7.1 The test method for the main parameter test specified in Article 5.1 of this standard is as follows: 7.1.1 Connect the instrument according to the circuits of Figures 1a and 1b, and test the items specified in Article 5.1 according to the test conditions in Table 1. Use the three-pin discharger specified in Figure 3 to conduct the test, and calculate the spark energy according to the method specified in Article 5.1.7. Table 1
Magneto speed
r/min
200800wwW.bzxz.Net
1000～Maximum speed
Competition temperature℃
Environment
Performance test
23±2
23±2
Working test
-40±3
80±2
80±2
Working status
Hot start
Operation
Rate
7.1.2 Before testing, the magneto ignition system to be tested shall be placed at the temperature specified in the table for at least 1 hour. When the system reaches a potential stable state, the measured parameter values ??shall be taken. The thermal stability condition is determined by negotiation between the manufacturer and the user. Considering the influence of contact arc and other factors, the exhaust value of the secondary output voltage will be different, so the lowest peak value tested is specified as the secondary output voltage of the system.
When measuring the spark holding time, the voltage divider and the spark gap of the three-pin discharger must be connected in parallel. The spark gap is 5.5±0.1mm. 7.1.3 When using simulation equipment to perform environmental temperature tests, since temperature has an effect on the resistance value of the wire, it is necessary to consider whether the length of the low-voltage wire and the high-voltage wire is reasonable.
7.1.4 The circuit shown in Figure 1 is suitable for measuring the secondary effective voltage; Figure 1b is suitable for measuring the secondary voltage rise time. At the same time, an oscilloscope can be used to test the primary induction voltage of the coil. The above test conditions are: JB/T6739-93
Ambient temperature: 23±2C: Magneto speed: 2000r/min±2%, 7.2 The test methods for type test and quality grading test of magneto, ignition coil and electronic igniter products shall be carried out in accordance with the relevant standards.
Fast electricity
Additional instructions:
0.10.3
Figure 3 Installation of three-needle sensitive electrical electrodes
This standard was proposed and coordinated by the Guanjin Internal Combustion Engine Research Institute. This standard was drafted by the Tianjin Internal Combustion Engine Research Institute. The main drafter of this standard is Li Jixian,
High voltage board
Sugar dynamic board
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