Despite the subsidies facing the slope, China's new energy vehicles, especially electric vehicle investment is still high. And in foreign energy-saving emission reduction regulations increasingly stringent, but also to promote the future development Sensor of new energy vehicles. The future development of new energy vehicles can be described as a 'hope of the field', but for enterprises, opportunities and challenges have always been complementary.
New energy vehicles, especially electric vehicles still face security risks, short mileage, system architecture, lack of reliability, product quality uneven, high cost, charging difficult problems. Among them, the most important challenge is the safety and reliability of the system, after all, for the development of the market and consumers, whether it is forward-looking technology, more attractive preferential policies, 'security Kaopu' is the most critical and most basic Guarantee. This requires the relevant production enterprises in addition Suction Control Valve to the battery, motor, electronic control and other key technologies to achieve a breakthrough, including connectors, sensors, contactors, relays and other core components of the field should also make a difference; even these original in the traditional car Domain 'supporting role' With the comprehensive improvement of electronic and electrical architecture, the increasing number of applications, the entire system architecture presented by the reliability, the perfect play a key supporting role.
To electric vehicle system architecture, for example, by the battery, drive motor and electronic control, high voltage distribution box, charging system, high voltage auxiliary electrical components of several components. Whether it is from the component itself or the entire system architecture, are related to the connection, sensing and protection, and the connection and sensing is the benchmark, through the connection, the sensor to achieve protection. However, compared with traditional cars, high voltage and high current system architecture, these core components are facing more stringent requirements and challenges. The 'support' connector behind the new energy vehicle safety and reliability is the core component necessary for the electrical connection of the circuit system. Under high voltage and high current, its current carrying capacity, pressure resistance and reliability are required to be further elevated. In addition, at such a high power, electromagnetic interference is another important problem facing the connector. At the same time, the high voltage circuit under Temperature Sensor the plug operation will produce arc, which will seriously endanger the electrical connection and electronic equipment, and may cause the car to burn, these problems require the connector of the special design and development.
For new contactors that connect and disconnect the power battery to the inverter, the new electrical system architecture requires not only the handling of very high continuous currents, but also the safe breaking of the overload current. Once the battery is short-circuited, these contactors must be able to carry thousands of amperes of current until the main fuse cuts off the circuit. The future of pure electric vehicle sensor development trend is to achieve miniaturization, multi-functional, integrated and intelligent. This requires the sensor not only has a small size, cheap, high reliability, but also in precision, functionality, intelligence and other aspects to be improved again. In addition to the above three types of components, there are circuit protection, manual maintenance switches, relays, wiring harness and other basic components, in the new electrical architecture also to be upgraded. However, for the OEM, the innovation of a single component is important, but its more important is the stability of the system, reliability, is also more 'Kaopu' system of solutions.
As the core of the new energy vehicles and power source, the battery pack is not only from the major, and the structure is more complex, it consists of multiple batteries module, each module has a few to a dozen unequal power Core composition. Among them, between the module, between the batteries and the management of batteries within the battery management system (BMS) within the current transmission and signal transmission requires a variety of connections and current and temperature monitoring, and the battery external transmission Pressure Sensor to have high-voltage connector The Therefore, the reliability of battery connection and module connection, high and low voltage interface, current and temperature monitoring is very important.
In addition, in recent years on the new energy vehicle explosion, spontaneous combustion events have occurred, most of the battery is also related. According to Li Wanxiang, general manager of sales and marketing for Greater China, TE Automotive Division, 'In the case of high voltage, the contact and disconnection of the current circuit is very dangerous and prone to arcing, and if the management is improper, the product may explode and burn.' The design Throttle Position Sensor of the pre-charge circuit, the fuse and the contactor to give a greater test. The connection and protection of the battery pack is a vital part of vehicle safety.