New EV current sensors from Honeywell

In electric vehicles, accurate current sensors are required for safety and performance. Building on years of experience Honeywell have now released the new CSNV700 and CSHV Current Sensors designed for battery management systems (BMS), battery disconnect units (BDU) and power distribution units (PDU) in electric vehicles.

The CSNV700 Series current sensors are rated for a primary current measurement range of ±700A DC, using an advanced flux gate design. They have a very low Zero Offset current of 0.05A, are temperature compensated and deliver an accuracy of 0.5% over the operating temperature range of -40°C to 85°C. An optimized magnetic circuit allows excellent performance in diverse magnetic environments. Digital output is via CAN bus.

CSNV700 sensors incorporate on-board firmware that can be customised to meet specific application requirements.

In addition to application in Battery Management, the CSNV700 range is also an excellent choice for Current leakage detection and fault isolation in charging systems, current measurement in energy storage systems and fault detection in heavy industrial equipment.

The CSHV Series are open loop current sensors that use Hall-effect sensing and patented Honeywell technology to deliver on accuracy and performance. They are rated for a primary current measurement range of ±100A to ±1500A DC with operating temperature of -40°C to 125°C. Their open loop design allows a fast response of 6 µs for fault isolation applications giving fault detection and asset protection before catastrophic failure.

CSHV is a cost-effective current sensor for battery management systems. For motor control applications, the current measurement is directly proportional to the motor torque. Current measurement can also be used to determine the speed at which the motor is turning.

Both CSNV700 and CSHV ranges are non-intrusive and electrically isolated from the monitored circuit, ensures a simple sensing method and AEC-Q100 qualified to meet higher quality and reliability requirements.

To learn more about the range of EV sensors from Honeywell, please contact Maria Moreno: mmoreno@aerco.cok  Tel +44 (0)1403 260206