Battery Monitoring System
Battery Monitoring System
A Battery monitoring system with an independent power supply and 4K galvanically insulated design with CAN interface.
The CTS Battery Monitoring System is engineered to support controlling battery parameters such as State-of-Charge (SoC) or State-of-Health (SoH) to support operating safety. This module has a range of support such as optimizing cell charge, improving battery life, and promoting high battery capacity which collectively enhances performance.
All data collected from the BMS is provided to the application system, in real-time, giving accurate estimates of each parameter and promoting safe operation standards.
Series Resources
- Data Sheet
- Battery Monitoring System
- Reach Statement
What is a battery monitoring system?
Battery Monitoring/Management Systems (BMS) are electronic systems that monitor the physical variables of a battery, such as current, voltage, and temperature, and prevents the battery from operating outside its safe operating area. Monitored variables are used to check the battery state, to calculate secondary data (eg. state of charge), report that data, control its environment, or for authentication.
Our standard module consists of a contactless Hall current sensor, a shunt resistor-based current sensor, a battery voltage sensor, and a temperature sensor. Together, these components monitor internal system parameters to detect potential malfunctions and ensure reliable operation. In addition, the module is highly configurable and can be programmed for integration into almost any digital system.
How is CTS's battery monitoring system integrated?
A particular feature of the product is its independent power supply and galvanically insulated design. Therefore the device operates directly with 5VDC, but can be configured to 12VDC upon request. It can also be attached on both high-side and low-side of the high-voltage (HV) battery system. This allows the module to directly monitor the battery and the parameters within the electrical system.
CTS BMS Monitored Parameters
- Voltage: Total, individual cell, min/max cell, or periodic tap
- Temperature: Average, coolant intake/output, or individual cell
- State-of-Charge (SOC) / Depth of Discharge (DOD): Battery charge level
- State-of-Health (SOH): Remaining battery capacity
- State-of-Power (SOP): Available power over a set time interval
- State-of-Safety (SOS): Data to signify a safe state of operation
- Coolant Flow: Air or fluid-cooled systems
- Current: Inflow/outflow of battery current
Standard Product or Custom Solutions
With both off-the-shelf and customized solutions, we meet a wide range of performance needs based on our established modular design. These sensors are solution for high-amperage drive motors, even with customized packaging and mounting options.
Designed using Hall-effect and Shunt-based technology, all our sensors provide a consistent, high-performance streamlined solution. Regardless of your application or housing requirements, our engineers can build a sensor to your concise specifications, guaranteeing it will fit your requirements.
Primary Monitoring Specifications
| Parameter | Value |
|---|---|
| Current Range | ±1500 A |
| Voltage Range | ±1000 VDC |
| Accuracy | ±0.5% FS |
| Operation temperature range | –40 to +85 °C |
| Supply voltage | 5 VDC |
| Redundant Measurement Hall | 12 Bits |
| Redundant Measurement Shunt | 18 Bits |
BMS Design
- Features
- Applications
- Technical Resources
Features
- Multisensor system (current, voltage, temperature)
- Galvanically insulated design: Isolation from High and Low Side
- Functional safety: ASIL C
- Contactless Melexis 91208 Hall sensor
- Current Measuring Range: 0 to ±1500 APK
- Redundant measurement with shunt and Hall sensing
- Customizable CAN communication
- Over-current protection
- Measurement accuracy of 1%
Applications
- Battery monitoring
- Electric Vehicles
- Hybrid Vehicles
- Automotive Grade Battery Systems
- State-of-charge and state-of-health
- Prototyping, development, testing platforms
- Industrial Equipment
- Functional safety
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