Description

The Ultra Electronics battery monitoring system (BMS) has been specifically designed for use on military vehicles. Based on patented technology that incorporates a real-time complex algorithm, the BMS simultaneously measures conductance, voltage, current, temperature, and time to provide a highly reliable and accurate measurement of the state of health of a vehicle’s batteries. The Mk1 BMS was proven in theatre for mission critical time remaining applications and has now been refined with the more compact and lighter Mk2 version, which is compatible with a broader range of military vehicle configurations.

The battery monitoring system provides the vehicle crew with accurate real-time battery health data. Technological advances in electronic equipment installed in modern military vehicles has led to increased demand on the vehicle battery bank. Historically, little or no attention has been paid to the condition of the batteries until a failure occurs.

A sensor unit mounts directly to the lower negative battery terminal. An LED indicator on top of the sensor indicates the state of function.

Each sensor outputs data via a control unit onto CAN bus so that information can be displayed either on existing vehicle displays or on a standard battery monitoring display. The display presents critical information such as:

• Time remaining
• State of charge
• State of health

Additionally, the user can view a diagnostics screen to gain access to more detailed battery performance and power generation information.

Benefits:

• Power consumption monitoring
  providing accurate time remaining measurements for silent watch applications
• Critical power threshold alerts
  crew alerts activate when power is too low to guarantee completion
• Reduced life cycle cost
  identifies faulty batteries so that only the defective batteries are replaced

Conductance based solution:

Conductance measurement has become established in the automotive and standby power industry as the only reliable method for quantifying the heath of a lead acid battery.

The battery monitoring system combines conductance measurement with voltage, current, temperature and time to provide accurate state of health and state of charge for each battery in the vehicle.

Features

• Ergonomically designed to accommodate the 5th to 95th percentile hand size.
• Maintainable using standard tools and equipment.
• Switches selected to military/aerospace standards to minimise in-service failures.
• Switches supplied as wired and potted modules to eliminate soldering.

 Download datasheet (pdf format)

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Specification

Dimensions: Sensor: 81 x 64 x 25 mm, Control Unit: 146 x 160 x 29 mm, Display: 90 x 175 x 51mm
Mass: Sensor: 0.5kg, Control Unit: 0.4kg, Display: 1.5kg
Input voltage: Sensor: +14V to +32V, Display: 28V to Def Stan 61-5 Part 6 Issue 5
Current: Sensor: 210mA (active mode) 70mA (sleep mode), Display: 250mA
Battery types: 2 x 12V lead acid in series (flooded or gel)
Operating temperature: -40ºC to +71ºC (Mil Std 810E)
Operating conditions: Designed to Def-Stan 00-35 (tracked vehicle)