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汽車電子和新能源汽車

High-precision power consumption and efficiency evaluations of  motors and inverters used in EVs and robots are required. In an evaluation, it is important to observe the transient instantaneous power and voltage and current waveforms during acceleration and deceleration as well as during steady state

A motor/inverter evaluation bench system incorporates equipment such as a power meter and a waveform measurement instrument. Generally, when acquiring the evaluation data, it is necessary to collect data from each instrument, and, commonly, a data collection system is constructed according to a customer's request

A waveform measurement instrument and power meter in the test room can be operated by a worker who is familiar with their operations, but the worker is often not allowed to enter the test room while motors and inverters are actually in operation. Unexpectedly, there are many cases in which the setting conditions temporarily set before measurement are insufficient in actual measurement

The CAN bus is a standard protocol for connecting multiple electronic control systems via a data bus and is currently used in various fields such as automotive, transportation, FA and industrial equipment.In the CAN bus, when the data bus is free, all connected nodes can transmit data equally. If more than one node starts sending data messages at the same time, the node sending the data message with the higher priority ID acquires the transmission right. It is also possible for multiple nodes to receive data with the ID they need at the same time.

The development and manufacturing of consumer electronics, air conditioning products, motor vehicles, and other goods, includes product planning, designing, manufacturing, and shipping inspection, during which a variety of tests are carried out before commercialization

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