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INTRODUCTION
The battery management system receives information on the status of the battery SOH through current sensors, which are the primary source of data for charging and discharging cycle information. The battery current sensor, which detects both current flow into and out of the battery, is an amp clamp.
The flow is subsequently converted into a variable duty cycle signal by the current sensor. The BCM receives this varied duty cycle from the sensor in order to determine current flow.
The magnetic current sensor works on the basis that the current to be measured creates a magnetic field around the current path, which can then be detected by a magnetic sensor to determine the current’s amount.
GLOBAL EV CURRENT SENSOR MARKET SIZE AND FORECAST
The Global EV Current sensor market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
NEW PRODUCT LAUNCH
LEM introduces a current sensor to assess battery charge levels precisely. The necessity to create vehicles that can drive the longest distances between charges is one of the industry’s main problems. In order to achieve the necessary high levels of efficiency and precision, design engineers are looking for sensors.
The CAB 1500, a brand-new sensor from LEM, is the most recent model in the CAB series of automotive grade design sensors. This series uses the advantages of fluxgate transducer technology to provide the high accuracy and low offset necessary for reliable coulomb counting, which involves measuring the discharging current of Li-ion batteries to determine their state of charge (SoC).
The CAB series offers straightforward application via a controller area network (CAN) interface with a 500 kbps speed that complies with the ISO 26262 functional safety standard (to automotive safety integrity level C).
The CAB 1500 open loop fluxgate sensor, which may be busbar or panel mounted and has electronic mechanisms and software that assure the levels of reliability demanded by BMSs, combines best-in-class resolution up to 0.1% with the lowest offset and maximum accuracy.
The new sensor features non-intrusive measurement for full galvanic isolation up to 2.5kV, along with an expanded current range up to 1500A and compliance with 800V applications according to the IEC 60664-1 standard. Low power consumption VS shunt technique and 0.5% total error over temperatures from -40°C to +85°C are further characteristics.
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