The output of the automobile power supply system is complicated, and various components such as a large current motor and a solenoid valve cause frequent fluctuations in the output of the power supply voltage. Frequent occurrences of large voltage pulses or drops occur, which poses a challenge to the stable operation of the electronic products in the vehicle. Therefore, in order to facilitate the testing of related products in the automotive electronics industry, the International Organization for Standardization has provided a series of voltage transient waveform test templates to simulate voltage waveforms under various conditions. Engineers can test the equipment to be tested in the laboratory according to the voltage waveform defined by the template to determine whether the product can meet the requirements. What kind of waveform can meet the requirements? What kind of test plan is the most professional and convenient?
Testing is the key to quality, as new energy vehicles are in full swing. For most people, the electronic components of electric vehicles that are not very familiar with them, what are the requirements for testing? How can I meet? What else do you need to pay attention to?
For the above problems, Idex provides a mature, reliable and comprehensive test solution with rich research experience.
Automotive electrical and electrical testing program
In addition to the external environment, the internal electromagnetic environment is also very bad. The performance and reliability of automotive electronics depend to a large extent on their immunity to interference. The electromagnetic physical environment on the car is mainly characterized by unstable power supply voltage and the severe influence of transient overvoltage on the working electronic device. A wide variety of automotive electronics include common electric windows, wipers, car audio equipment, etc. These appliances are subject to detailed testing to ensure the performance of the vehicle.
Automotive electronics engineers are familiar with the need for automotive electronics to test a power supply that is stable and capable of simulating waveforms in a variety of automotive configurations. With years of research experience and strong R&D capabilities in power and electronic load, Idex has launched the IT6500 series of ultra-wide range high-power DC power products with built-in DIN40839 standard automotive power grid voltage curve and ISO 16750-2 standard. The voltage sequence brings professional and standard test solutions in the field of automotive electronics. It has also been widely used and widely recognized by well-known automobile electronics manufacturers and research laboratories at home and abroad. It can conduct a series of immunity tests for automotive electronic appliances, such as : Automotive engine start-up test, fuse blow test, and automotive electronic reset performance test.
Taking the engine start test as an example, when the car engine starts, the voltage supplied by the circuit to the electronic device on the car will have a momentary drop and then return to the moment, if the electronic device on the car cannot withstand such a fast voltage. The impact of the fall will cause the failure to stop working. Therefore, before leaving the factory, the electronic equipment that is often used in automobiles must be tested for the start of the automobile engine. The DC power supply that can truly simulate and quickly call the voltage drop waveform when the automobile engine starts is occupying an important position in the test. The Itech IT6500 series DC power supply can quickly and easily retrieve the built-in DIN40839 voltage waveform for testing. This waveform is a voltage curve for the standard automotive power grid that was developed by Germany to simulate the start of the car engine. At the same time, Idex also fully considers the communication requirements of different test environments. In the IT6500 series DC power supply, various communication interfaces such as GPIB/USB/RS232 and analog control interface are built in, which can cope with various communication and control. need.
Automotive motor test solution
The electric vehicle motor is powered by the vehicle power supply and drives the wheels. It is an important electronic component in the car. It requires high stability and high power. In the test, the high-power model of the ITECH IT6500 series power supply can meet the demand, the maximum power of the single machine reaches 3KW, and the voltage/current/power can be extended by the new master-slave series-parallel mode to meet the test requirements of higher power. . Not only is there a prominent highlight in terms of power expansion, the new master-slave series-parallel mode of the IT6500 series DC power supply can control multiple slaves by one host, which is more convenient to control and has unique advantages in some test environments.
For the test of the motor, the power supply used also needs to have a high anti-interference ability. The IT6500 series power supply has strong stability, and the output voltage and current ripple are small, which can ensure the accuracy of the test. Secondly, the IT6500 series power supply can be continuously powered to meet the long-term load test requirements.
JuncTIon box junction box test system
The junction box, that is, the central control box of the car, is a multi-functional electronic control device, which integrates the fuses, circuit breakers and relays of the whole vehicle into one, and is the control center of the whole vehicle electrical and electronic circuits. Idex's central control box test system (JuncTIon box junction box test system) is built with the latest technology programmable electronic load, power supply and other special development software. The system can detect the stability of the central control box for a long time, and complete the detection of important performance indicators such as relay life test, fuse test, temperature monitoring and fault alarm prompt. The equipment has high degree of automation, high precision, intelligent, and good system heat dissipation performance. In addition, the modular structure allows the customer to flexibly expand the number of test passes in later use, saving the cost of re-purchasing test equipment.
Electric vehicle power battery test solution
In order to protect the earth, the government advocated “green travel†many years ago. In recent years, with the maturity of new energy vehicle technology, more and more people are willing to accept this kind of environmentally friendly travel mode. Despite this, many people still have a wait-and-see attitude toward new energy vehicles, and there are still some concerns about its safety and reliability. For example, the news that the electric car caught fire from time to time in the news is prohibitive.
An electric car has a fire accident. Most of the time it is caused by the battery being overcharged during charging or during driving. To solve this problem from the root cause, it is necessary to test the parameters of the battery. The general battery charge and discharge test system on the market can only test the charge and discharge curve of the battery, but it can not detect the temperature. This is undoubtedly very imperfect and will bring great safety hazards. It can be said that the testing and testing technology directly affects the quality and performance of the battery. If the test is not perfect, it will inevitably bring security risks. Then, it is not surprising that the fire incident is not uncommon. In the field of battery testing, Idex has a wealth of research experience, there are many well-tested power supplies, electronic loads and other test instruments and test software. For the test of power batteries, Idex uses the test software to increase the temperature. The method of collecting cards, collecting and monitoring the temperature of the battery in real time during the long test period, and accurately detecting the internal resistance of the battery, provides the most comprehensive test plan for the electric vehicle power battery manufacturer. At the same time, the Itech IT9300 battery test system adopts a user-friendly design. The software monitoring interface is simple and clean, and can be seen at a glance. When testing the charge and discharge curve of the battery, the engineer can set the conditions such as stop time, stop capacity, stop voltage, etc., as long as any one of the conditions is met, the system will automatically stop the discharge, so as to ensure the test automation to the greatest extent, Avoid excessive discharge and damage the battery.
Electric vehicle high-power charging pile test program
The power of electric vehicle charging piles is generally large, and it is necessary to select a high-power electronic load during testing to meet the test requirements. In response to this, Itech has launched the IT8800 series electronic load, the single machine power can reach 55KW, which can fully meet the testing requirements of high-power charging piles. It can test the charging voltage of the charging pile, its no-load voltage, or the analog voltage gradually rises. Characteristics of whether the working current is normal during high process.
The charging pile has high requirements on the simulated load performance. It is required that the electronic load can simulate the output of different charging modes, such as constant current to constant voltage, constant current, constant voltage, and fast charging. Using the Itech IT8800 series electronic load, the actual load condition of the charging post can be fully simulated. It has multiple operating modes except constant current (CC), constant voltage (CV), constant resistance (CR) and constant power ( CP) In addition to these common modes of operation, CZ fixed impedance mode is added to simulate inductive or capacitive loads, and the slope of the load can be set. The adjustable slope space is 0.0001~2.5A/uS.
Idex has many years of experience in the development, manufacture and sale of test instruments, from hardware and software to the entire test system. It is self-developed and manufactured, so it possesses both product performance and reliability of test systems and solutions. Advantage. In addition, Itech fully considers the long-term application requirements of customers, and the test system is flexible. When there is higher test demand, it can be upgraded based on the original test system, which saves the time of secondary development. It saves the cost of purchasing test equipment and provides the best price/performance ratio.
Shenzhen Konchang Electronic Technology Co.,Ltd , https://www.eclinusb.com