車輛保險絲盒上各個耗電元件和各個電路的電流測量-Klaric Multi-8

產(chǎn)品Products：

MULTI-8 (formerly KLARI-FUSE 3)

測量 Carrying out the measurement

為了分析測試車輛中的電路，汽車制造商、開發(fā)服務提供商和供應商通常使用MULTI-8測量模塊，即具有8個并聯(lián)獨立輸入的毫伏表。用于電流、電壓和溫度測量的不同探頭可以連接到所有輸入端。這些探針由測量模塊自動識別。為了在計算測量值時達到盡可能高的精度，相應樣品的校準值被傳輸?shù)綔y量模塊并用于計算。測量數(shù)據(jù)通過CAN和/或以太網(wǎng)傳輸，每個通道最多可輸出8 kHz。例如，多種配置選項可以通過不同的操作模式減少數(shù)據(jù)量，并對測量值進行平均。
這些模塊優(yōu)選安裝在車輛內(nèi)部，例如通過車輛保險絲盒直接連接到電路中，見圖1。
為了防止極其昂貴的測試車輛發(fā)生可能的短路，測量電路受到原裝車輛保險絲的保護。測量分流器在獨立外殼中的布置確保了測量值不會因熱效應而失真。這種測量技術(shù)也用于實驗室車輛的測量，在實驗室車輛中，使用原始線束在所謂的電路板結(jié)構(gòu)中復制完整的電氣/電子系統(tǒng)。

For the analysis of individual consumers or circuits in the test vehicle, automobile manufacturers, development service providers and suppliers often use MULTI-8 measuring modules, a millivoltmeter with 8 parallel, independent inputs. Different probes for current, voltage and temperature measurements can be connected to all inputs. These probes are automatically identified by the measurement module. In order to achieve the highest possible accuracy when calculating the measured value, the calibration value of the respective sample is transferred to the measuring module and used for the calculation. The measurement data is transmitted via CAN and/or Ethernet, a maximum of 8 kHz can be output per channel. A wide range of configuration options enable, for example, the reduction of the data volume via different operating modes and the averaging of measured values.

These modules are preferably installed in the vehicle interior and, for example, looped directly into a circuit via the vehicle fuse box - see Figure 1.

In order to protect the extremely expensive test vehicle against possible short circuits, the measuring circuits are protected by the original vehicle fuse. The arrangement of the measuring shunt in a separate housing ensures that the measured values are not falsified by thermal effects. This measurement technology is also used for measurements on laboratory vehicles, in which the complete electrical/electronic system is reproduced using the original wiring harnesses in a so-called board structure.

數(shù)據(jù)評估 Evaluation

除了測量的電流和電壓值之外，通常還會記錄許多其他測量數(shù)據(jù)，這些數(shù)據(jù)可以使用商用測量數(shù)據(jù)軟件進行評估。獨立于CAN總線的帶有其自身時間戳的測量值的傳輸使得測量值能夠根據(jù)時間來分配并且與其他測量數(shù)據(jù)相關(guān)聯(lián)。
由于這種高分辨率測量技術(shù)，能夠在非常寬的范圍內(nèi)精確測量電量，即使是最小的耗電大戶也能被識別出來。由于一輛汽車中有多達180個控制單元，這帶來了巨大的優(yōu)化潛力。

Along with the measured current and voltage values, a number of other measurement data are often recorded, which are evaluated using commercially available measurement data software. The transmission of the measured values with its own time stamp, independent of the CAN bus, enables the measured values to be assigned in terms of time and correlated with other measured data.

Thanks to this high-resolution measurement technology, which enables the precise measurement of electrical quantities over a very wide range, even the smallest power guzzlers can be identified. With up to 180 control units in a premium class vehicle, this results in considerable optimization potential.

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